{"title":"Spindles and VFDs","description":"\u003cp\u003eHigh-speed cutting motors and their variable frequency drive controllers for CNC routing and milling applications.\u003c\/p\u003e\n\u003cdiv class=\"ProductPageContent\"\u003e\n\u003cp\u003eGive your CNC Machine a strong and relatively quiet tool for cutting and engraving. The spindle is a must have for those looking for deeper cuts and faster feedrates.\u003c\/p\u003e\n\u003c\/div\u003e","products":[{"product_id":"spindle-inverter-1-5kw-vfd-spindle","title":"1.5 kW (kilowatt) Water Cooled Spindle with Inverter (VFD)","description":"This is a 1.5 kilowatt spindle which roughly translates to 2.01 HP. The spindle comes with the inverter (Variable Frequency Drive) that accepts 110v or 220v depending on the option selected.    The spindle is water cooled which requires a water pump and silicon tubing. We are using a 300 gal\/hr pump that can be purchased from the home improvement store submerged in a bucket of water, but a chiller can also be used.    The inverter will show the frequency and can be controlled from the computer. The inverter does come with an instruction manual. The spindle with inverter can also run in forward or reverse and up to 400Hz. \u003ci\u003eNote: connecting the inverter to mains power will require wiring of the plug to the inverter. We recommend seeking a licensed electrician for this part of the wiring.\u003c\/i\u003e    The spindle, by itself, weighs 8.66 lbs.  The diameter of the spindle cylindrical body is 80mm, so when finding a mount, use an \u003ca href=\"https:\/\/www.buildyuurcnc.com\/item\/spindle-inverter-2!2kw-spindle-80mm-mount\"\u003e80mm mount\u003c\/a\u003e.    Collet Size for 1.5kW Spindle: ER11    Refer to \u003ca href=\"https:\/\/www.buildyuurcnc.com\/item\/spindle-inverter-2!2kw-spindle-vfd\"\u003ethis product page for the VFD\/Inverter (Variable Frequency Drive) parameters and programming\u003c\/a\u003e","brand":"BuildYourCNC","offers":[{"title":"1.5kW 220V Water Cooled Spindle with VFD\/Inverter","offer_id":45875864928430,"sku":"537","price":399.0,"currency_code":"USD","in_stock":true},{"title":"1.5kW 110V Water Cooled Spindle with VFD\/Inverter","offer_id":45875864961198,"sku":"650","price":529.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/spindleandinverter1-5-200.jpg?v=1730084016"},{"product_id":"spindle-inverter-1-5kw-spindle-novfd","title":"1.5 kW (kilowatt) Water Cooled Spindle","description":"This is a 1.5 kilowatt spindle which roughly translates to 2.01 HP. The spindle is water cooled which requires a pump and tubing. We are using a 300 gal\/hr pump that can be purchased from the home improvement store submerged in a bucket of water, but a chiller can also be used.    Do not attempt to wire your VFD or spindle on your own. Consult with a professional electrician before following the diagram.    The spindle, by itself, weighs 8.66 lbs.  The diameter of the spindle cylindrical body is 80mm, so when finding a mount, use an \u003ca href=\"https:\/\/www.buildyuurcnc.com\/item\/spindle-inverter-2!2kw-spindle-80mm-mount\"\u003e80mm mount\u003c\/a\u003e.    Collet Size for 1.5kW Spindle: ER11      Refer to \u003ca href=\"https:\/\/www.buildyuurcnc.com\/item\/spindle-inverter-2!2kw-spindle-vfd\"\u003ethis product page for the VFD\/Inverter (Variable Frequency Drive) parameters and programming\u003c\/a\u003e","brand":"BuildYourCNC","offers":[{"title":"1.5kW 110V Water Cooled Spindle","offer_id":45875865190574,"sku":"651","price":349.95,"currency_code":"USD","in_stock":true},{"title":"1.5kW 220V Water Cooled Spindle","offer_id":45875865223342,"sku":"535","price":219.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/spindle1-5-200.jpg?v=1730084019"},{"product_id":"spindle-inverter-1-5kw-vfd-nospindle","title":"1.5 kW (kilowatt) Inverter (Variable Frequency Drive - VFD)","description":"This is a 1.5 kilowatt Variable Frequency Drive (VFD or Inverter) that accepts 220v single or three phase. The inverter max frequency is 400Hz . The inverter comes with an instruction manual.    \u003ci\u003eNote: connecting the inverter to mains power will require wiring of the plug to the inverter. We recommend seeking a licensed electrician for this part of the wiring.\u003c\/i\u003e    Collet Size for 1.5kW Spindle: ER11      Refer to \u003ca href=\"https:\/\/www.buildyuurcnc.com\/item\/spindle-inverter-2!2kw-spindle-vfd\"\u003ethis product page for the VFD\/Inverter (Variable Frequency Drive) parameters and programming\u003c\/a\u003e","brand":"BuildYourCNC","offers":[{"title":"1.5kW 220V VFD\/Inverter","offer_id":45875865256110,"sku":"536","price":175.95,"currency_code":"USD","in_stock":true},{"title":"1.5kW 110V VFD\/Inverter","offer_id":45875865288878,"sku":"649","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/inverter-1-5-2-2-200.jpg?v=1730084022"},{"product_id":"spindle-inverter-2-2kw-spindle-vfd","title":"2.2 kW (kilowatt) Water Cooled Spindle with Inverter (VFD)","description":"\u003cp\u003eOrder the 2.2kW Water Cooled Spindle and Inverter Combo for more efficient, quieter CNC routing. Ships from USA. Warranty and Support available. Do not attempt to wire your VFD or spindle on your own. Consult with a professional electrician before following the diagram.\u003c\/p\u003e\n\u003cfigure\u003e\n\u003cdiv class=\"video-container\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/\/lgib-txdUvY\" height=\"138\" width=\"246\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cb\u003eEach VFD spindle pair is tested and all the parameters are configured for your convenience and to insure that the VFD and spindle will function correctly without failure. Incorrect parameter settings can damage the spindle or VFD. If you purchase cabling, we will solder the cable to the spindle and connect the cable to the VFD. Each order will have a video of the test of the spindle and VFD that they purchase\u003c\/b\u003e Here is the cable we recommend purchasing with the spindle to receive the free cable connector soldering. https:\/\/buildyuurcnc.com\/item\/3d-printer-component-cnc-electronicsandmotors-shieldedcable-wire-4-conductor-18-awg-wrcon-cablewire4conductor18awg Here is an example of a test that we do:\u003c\/p\u003e\n\u003cblockquote style=\"background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);\" data-instgrm-version=\"12\" data-instgrm-permalink=\"https:\/\/www.instagram.com\/tv\/CFrLF2_Dn5c\/?utm_source=ig_embed\u0026amp;utm_campaign=loading\" class=\"instagram-media\"\u003e\n\u003cdiv style=\"padding: 16px;\"\u003e\n\u003ca style=\"background: #FFFFFF; line-height: 0; padding: 0 0; text-align: center; text-decoration: none; width: 100%;\" href=\"https:\/\/www.instagram.com\/tv\/CFrLF2_Dn5c\/?utm_source=ig_embed\u0026amp;utm_campaign=loading\" target=\"_blank\"\u003e\n\u003cdiv style=\"display: flex; flex-direction: row; align-items: center;\"\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; flex-grow: 1; justify-content: center;\"\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 19% 0;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: block; height: 50px; margin: 0 auto 12px; width: 50px;\"\u003e\u003csvg xmlns:xlink=\"https:\/\/www.w3.org\/1999\/xlink\" xmlns=\"https:\/\/www.w3.org\/2000\/svg\" version=\"1.1\" viewbox=\"0 0 60 60\" height=\"50px\" width=\"50px\"\u003e\u003cg fill-rule=\"evenodd\" fill=\"none\" stroke-width=\"1\" stroke=\"none\"\u003e\u003cg fill=\"#000000\" transform=\"translate(-511.000000, -20.000000)\"\u003e\u003cg\u003e\u003cpath d=\"M556.869,30.41 C554.814,30.41 553.148,32.076 553.148,34.131 C553.148,36.186 554.814,37.852 556.869,37.852 C558.924,37.852 560.59,36.186 560.59,34.131 C560.59,32.076 558.924,30.41 556.869,30.41 M541,60.657 C535.114,60.657 530.342,55.887 530.342,50 C530.342,44.114 535.114,39.342 541,39.342 C546.887,39.342 551.658,44.114 551.658,50 C551.658,55.887 546.887,60.657 541,60.657 M541,33.886 C532.1,33.886 524.886,41.1 524.886,50 C524.886,58.899 532.1,66.113 541,66.113 C549.9,66.113 557.115,58.899 557.115,50 C557.115,41.1 549.9,33.886 541,33.886 M565.378,62.101 C565.244,65.022 564.756,66.606 564.346,67.663 C563.803,69.06 563.154,70.057 562.106,71.106 C561.058,72.155 560.06,72.803 558.662,73.347 C557.607,73.757 556.021,74.244 553.102,74.378 C549.944,74.521 548.997,74.552 541,74.552 C533.003,74.552 532.056,74.521 528.898,74.378 C525.979,74.244 524.393,73.757 523.338,73.347 C521.94,72.803 520.942,72.155 519.894,71.106 C518.846,70.057 518.197,69.06 517.654,67.663 C517.244,66.606 516.755,65.022 516.623,62.101 C516.479,58.943 516.448,57.996 516.448,50 C516.448,42.003 516.479,41.056 516.623,37.899 C516.755,34.978 517.244,33.391 517.654,32.338 C518.197,30.938 518.846,29.942 519.894,28.894 C520.942,27.846 521.94,27.196 523.338,26.654 C524.393,26.244 525.979,25.756 528.898,25.623 C532.057,25.479 533.004,25.448 541,25.448 C548.997,25.448 549.943,25.479 553.102,25.623 C556.021,25.756 557.607,26.244 558.662,26.654 C560.06,27.196 561.058,27.846 562.106,28.894 C563.154,29.942 563.803,30.938 564.346,32.338 C564.756,33.391 565.244,34.978 565.378,37.899 C565.522,41.056 565.552,42.003 565.552,50 C565.552,57.996 565.522,58.943 565.378,62.101 M570.82,37.631 C570.674,34.438 570.167,32.258 569.425,30.349 C568.659,28.377 567.633,26.702 565.965,25.035 C564.297,23.368 562.623,22.342 560.652,21.575 C558.743,20.834 556.562,20.326 553.369,20.18 C550.169,20.033 549.148,20 541,20 C532.853,20 531.831,20.033 528.631,20.18 C525.438,20.326 523.257,20.834 521.349,21.575 C519.376,22.342 517.703,23.368 516.035,25.035 C514.368,26.702 513.342,28.377 512.574,30.349 C511.834,32.258 511.326,34.438 511.181,37.631 C511.035,40.831 511,41.851 511,50 C511,58.147 511.035,59.17 511.181,62.369 C511.326,65.562 511.834,67.743 512.574,69.651 C513.342,71.625 514.368,73.296 516.035,74.965 C517.703,76.634 519.376,77.658 521.349,78.425 C523.257,79.167 525.438,79.673 528.631,79.82 C531.831,79.965 532.853,80.001 541,80.001 C549.148,80.001 550.169,79.965 553.369,79.82 C556.562,79.673 558.743,79.167 560.652,78.425 C562.623,77.658 564.297,76.634 565.965,74.965 C567.633,73.296 568.659,71.625 569.425,69.651 C570.167,67.743 570.674,65.562 570.82,62.369 C570.966,59.17 571,58.147 571,50 C571,41.851 570.966,40.831 570.82,37.631\"\u003e\u003c\/path\u003e\u003c\/g\u003e\u003c\/g\u003e\u003c\/g\u003e\u003c\/svg\u003e\u003c\/div\u003e\n\u003cdiv style=\"padding-top: 8px;\"\u003e\n\u003cdiv style=\"color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;\"\u003eView this post on Instagram\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding: 12.5% 0;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;\"\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-left: 8px;\"\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-left: auto;\"\u003e\n\u003cdiv style=\"width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;\"\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\n\u003cp style=\"color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;\"\u003e\u003ca style=\"color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;\" href=\"https:\/\/www.instagram.com\/tv\/CFrLF2_Dn5c\/?utm_source=ig_embed\u0026amp;utm_campaign=loading\" target=\"_blank\"\u003eA post shared by buildyourcnc_newbiehack (@buildyourcnc_newbiehack)\u003c\/a\u003e on \u003ctime datetime=\"2020-09-28T09:10:03+00:00\" style=\"font-family: Arial,sans-serif; font-size: 14px; line-height: 17px;\"\u003eSep 28, 2020 at 2:10am PDT\u003c\/time\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/blockquote\u003e\n\u003cp\u003e\u003cscript src=\"\/\/www.instagram.com\/embed.js\" async=\"\"\u003e\u003c\/script\u003e The power cable is not included, but we do show how we connect the power cable to the VFD. We have tested spindles from many manufacturers and this spindle and VFD (Variable Frequency Drive) is the best one we have found. This spindle has four (4) bearings. Having four bearings in your spindle is very important and will maintain the precision and extend the life of the spindle. If you're planning on purchasing a spindle from eBay, or other source, keep in mind that support will be limited. We support our spindles! They are shipped from the United States. We can support the spindles with the years of experience we have been dealing with these spindles and we have searched really hard for the right spindle and VFD. There is a connection to the spindle for power. Three of the four connections are used which connect to the internal coils that make the spindle spin. The fourth connection is not connected (NC). Spindles need to be cooled and this spindle uses water for this purpose. More importantly, this aspect of water cooling does not allow air movement to cool the spindle (as opposed to routers that move air through the router to cool by convection). Water cools the spindle using conduction (heat transfer through contact). This is important because, as opposed to air movement, water cooling will not blow the dust all over the shop, and the dust and chips left over by the milling and cutting process can be removed with a dust collector or vacuum. The ports for the water cooling tubes or hose is located at the back of the spindle. The port fitting will accept \u003ca href=\"https:\/\/www.buildyuurcnc.com\/item\/pneumatic-hydraulic-silicone-tubing\"\u003ea tube or hose that has a 1\/4\" (.25 inch) inside diameter and an outside diameter of 3\/8\" (.375 inch)\u003c\/a\u003e. Either port can be used for in or out. It's just important that the water flow through the body of the spindle. The sound level from a spindle is extremely low as compared to routers. In fact, the sound from a spindle is quieter than the actual cutting and milling action from the end mill, and much quieter than a router. The spindle comes with a 1\/4\" (.25 inch) collet, which is the measure of the bore (inside diameter) inside which the shank of the end mill is inserted. the collet fits into the shaft where the collet taper matches the shaft taper. When the collet is inserted into this taper and the collet nut is tightened down, the collet squeezes around the shank of the end mill (helped by the way the collet is made with all of the sliced sections surrounding the collet). You will need two wrenches to tighten the collet nut onto the collet. Watch the video on the proper technique of loosening and tightening. Spindles required the use of a VFD (Variable Frequency Drive) to function. These VFDs are also called spindle inverters. The VFD takes the power from the wall and creates a frequency with voltage and current to spin the spindle. The frequency can be controlled to control the RPM of the spindle. The VFD has a potentiometer to adjust the speed or RPM, but the RPM of the spindle can also be adjusted automatically from the \u003ca href=\"https:\/\/www.buildyuurcnc.com\/CNCsoftware.aspx\"\u003econtrol software\u003c\/a\u003e. The VFD has a screen that shows many aspects of the condition or current status of the spindle including RPM or frequency, spindle rotation direction, any faults or errors that may be occurring and much more. Every aspect of the spindle can be controlled by the VFD and the VFD can also be programmed (setting can be configured). The VFD controls the spindles torque and commanded speed using PID control (Proportional Integral Derivative) that makes sure the spindle has the current and torque it needs to maintain the RPM under various load conditions. Routers are not able to do this and will exhibit a reduction in RPM (getting bogged down) when additional load is put on the router, like trying to cut deep into material. Controlling the VFD can be done manually, or can be completely controlled using control software like Mach3 and LinuxCNC. The face of the VFD contains buttons for Run, Mode, Reverse\/Jog, Stop. Reset, Enter and various arrow buttons to browse and set various functions through the menu. The VFD contains many terminals connections for wiring the spindle to the VFD, wiring the controller (computer or other controlling device) to the VFD and wiring the VFD to the wall outlet for mains power. The spindle, by itself, weighs 10.93 lbs. Parts included: 2.2kW Spindle 110V or 220V Inverter (VFD) 110V or 220V Collet: ER20 1\/4\" 4-Pin Connector Collet Size for 2.2kW Spindle: ER20 Spindle Diameter: 80mm\u003c\/p\u003e","brand":"BuildYourCNC","offers":[{"title":"2.2kW 220V Water Cooled Spindle with VFD\/Inverter","offer_id":45875865321646,"sku":"417","price":528.0,"currency_code":"USD","in_stock":true},{"title":"2.2kW 110V Water Cooled Spindle with VFD\/Inverter","offer_id":45875865354414,"sku":"3038","price":548.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/IMG_0232-800.jpg?v=1730084026"},{"product_id":"spindle-inverter-2-2kw-spindle-novfd","title":"2.2 kW (kilowatt) Water Cooled Spindle","description":"Order the 2.2kW Water Cooled Spindle for more efficient, quiet CNC routing! Ships from the United States. Warranty \u0026amp; Support available now. High quality stainless steel casing. Speed: 0-24000 R\/min.    \u003cfigure\u003e  \u003cdiv class=\"video-container\"\u003e\u003ciframe width=\"246\" height=\"138\" src=\"\/\/www.youtube.com\/embed\/\/lgib-txdUvY\" frameborder=\"0\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e  \u003c\/figure\u003e    We have tested spindles from many manufacturers and this spindle and VFD (Variable Frequency Drive) is the best one we have found. This spindle has four (4) bearings which will maintain the precision and extend the life of the spindle.     We support our spindles! We have qualified technicians with years of experience to fully support your needs or questions.     There is a connection to the spindle for power. Three of the four connections are used which connect to the internal coils that make the spindle spin. The fourth connection is not connected (NC).     Spindles need to be cooled and this spindle uses water for this purpose. More importantly, this aspect of water cooling does not allow air movement to cool the spindle (as opposed to routers that move air through the router to cool by convection). Water cools the spindle using conduction (heat transfer through contact). This is important because, as opposed to air movement, water cooling will not blow the dust all over the shop, and the dust and chips left over by the milling and cutting process can be removed with a dust collector or vacuum.    The ports for the water cooling tubes or hose is located at the back of the spindle. The port fitting will accept \u003ca href=\"https:\/\/www.buildyuurcnc.com\/item\/pneumatic-hydraulic-silicone-tubing\"\u003ea tube or hose that has a 1\/4\" (.25 inch) inside diameter and an outside diameter of 3\/8\" (.375 inch)\u003c\/a\u003e. Either port can be used for in or out. It's just important that the water flow through the body of the spindle.    The sound level from a spindle is extremely low as compared to routers. In fact, the sound from a spindle is quieter than the actual cutting and milling action from the end mill, and much quieter than a router.    The spindle comes with a 1\/4\" (.25 inch) collet, which is the measure of the bore (inside diameter) inside which the shank of the end mill is inserted. the collet fits into the shaft where the collet taper matches the shaft taper. When the collet is inserted into this taper and the collet nut is tightened down, the collet squeezes around the shank of the end mill (helped by the way the collet is made with all of the sliced sections surrounding the collet). You will need two wrenches to tighten the collet nut onto the collet. Watch the video on the proper technique of loosening and tightening.","brand":"BuildYourCNC","offers":[{"title":"2.2kW Spindle - 110V","offer_id":45875865387182,"sku":"6174","price":339.0,"currency_code":"USD","in_stock":true},{"title":"2.2kW Spindle - 220V","offer_id":45875865419950,"sku":"540","price":339.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/IMG_0235-800.jpg?v=1730084042"},{"product_id":"spindle-inverter-2-2kw-vfd-nospindle","title":"2.2 kW (kilowatt) Inverter (Variable Frequency Drive - VFD)","description":"This is a 2.2 kilowatt Variable Frequency Drive (VFD or Inverter). The inverter max frequency is 400Hz . The inverter comes with an instruction manual. \u003ci\u003eNote: connecting the inverter to mains power will require wiring of the plug to the inverter. We recommend seeking a licensed electrician for this part of the wiring.\u003c\/i\u003e    \u003cfigure\u003e  \u003cdiv class=\"video-container\"\u003e\u003ciframe width=\"246\" height=\"138\" src=\"\/\/www.youtube.com\/embed\/\/lgib-txdUvY\" frameborder=\"0\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/div\u003e  \u003c\/figure\u003e    Spindles required the use of a VFD (Variable Frequency Drive) to function. These VFDs are also called spindle inverters. The VFD takes the power from the wall and creates a frequency with voltage and current to spin the spindle. The frequency can be controlled to control the RPM of the spindle.    The VFD has a potentiometer to adjust the speed or RPM, but the RPM of the spindle can also be adjusted automatically from the \u003ca href=\"https:\/\/www.buildyuurcnc.com\/CNCsoftware.aspx\"\u003econtrol software\u003c\/a\u003e. The VFD has a screen that shows many aspects of the condition or current status of the spindle including RPM or frequency, spindle rotation direction, any faults or errors that may be occuring and much more. Every aspect of the spindle can be controlled by the VFD and the VFD can also be programmed (setting can be configured).    The VFD controls the spindles torque and commanded speed using PID control (Proportional Integral Derivative) that makes sure the spindle has the current and torque it needs to maintain the RPM under various load conditions. Routers are not able to do this and will exhibit a reduction in RPM (getting bogged down) when additional load is put on the router, like trying to cut deep into material.    Controlling the VFD can be done manually, or can be completely controlled using control software like Mach3 and LinuxCNC. The face of the VFD contains buttons for Run, Mode, Reverse\/Jog, Stop.Reset, Enter and various arrow buttons to browse and set various functions through the menu.    The VFD contains many terminals connections for wiring the spindle to the VFD, wiring the controller (computer or other contolling device) to the VFD and wiring the VFD to the wall outlet for mains power.    Latest Specifications:  \u003cimg src=\"http:\/\/www.buildyuurcnc.com\/images\/YL600-2_2KG-2S-B_Page2-800.JPG\" alt=\"Page 1 of the YL600-2.2KG-2S-B VFD\"\u003e  \u003cimg src=\"http:\/\/www.buildyuurcnc.com\/images\/YL600-2_2KG-2S-B_Page1-800.JPG\" alt=\"Page 2 of the YL600-2.2KG-2S-B VFD\"\u003e","brand":"BuildYourCNC","offers":[{"title":"2.2kW Inverter - 220V (VFD)","offer_id":45875865452718,"sku":"541","price":249.0,"currency_code":"USD","in_stock":true},{"title":"2.2kW Inverter - 110V (VFD)","offer_id":45875865485486,"sku":"3039","price":269.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/IMG_0241-800.jpg?v=1730084053"},{"product_id":"usb-to-rs485-converter","title":"USB to RS485 Converter","description":"\u003ch1\u003eDTECH USB to RS422\/RS485 Serial Adapter Cable - Complete Product Guide\u003c\/h1\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe DTECH USB to RS422\/RS485 Serial Port Adapter Cable is a professional-grade industrial communication solution designed to bridge the gap between modern USB-equipped computers and legacy RS422\/RS485 serial devices. This adapter is particularly valuable for CNC applications, VFD (Variable Frequency Drive) control, and industrial automation systems where reliable serial communication is critical.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Product Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e DTECH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e USB to RS422\/RS485 Adapter with Terminal Board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e 4 feet (1.2 meters)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipset:\u003c\/strong\u003e FTDI FT232 (Premium Quality)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 8.9 x 5 x 2.1 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustomer Rating:\u003c\/strong\u003e 4.6\/5 stars (218 reviews)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ch3\u003eCommunication Standards\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS485:\u003c\/strong\u003e Half-duplex, 2-wire communication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS422:\u003c\/strong\u003e Full-duplex, 4-wire communication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompliance:\u003c\/strong\u003e TIA\/EIA-485 and TIA\/EIA-422 standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Standard:\u003c\/strong\u003e USB 2.0 (backward compatible with USB 1.1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePerformance Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaud Rate Range:\u003c\/strong\u003e 300 bps to 921,600 bps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Distance:\u003c\/strong\u003e Up to 1,200 meters (4,000 feet) for RS485\/422\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDevice Support:\u003c\/strong\u003e Up to 32 RS485 or RS422 devices on a single network\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Transmission:\u003c\/strong\u003e Zero delay automatic transmission\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-detection:\u003c\/strong\u003e Automatic data speed detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProtection Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurge Protection:\u003c\/strong\u003e 600W surge protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Protection:\u003c\/strong\u003e 15KV electrostatic discharge protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSignal Isolation:\u003c\/strong\u003e Protects sensitive equipment from electrical damage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Grade:\u003c\/strong\u003e Built for harsh industrial environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eCNC and VFD Applications\u003c\/h2\u003e\n\u003ch3\u003eVFD Spindle Control\u003c\/h3\u003e\n\u003cp\u003eThis adapter is ideal for CNC applications requiring VFD communication:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpindle Speed Control:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect your CNC controller to VFD units for precise spindle speed control\u003c\/li\u003e\n\u003cli\u003eSupports Modbus RTU communication protocol commonly used in VFDs\u003c\/li\u003e\n\u003cli\u003eEnables real-time speed feedback and monitoring\u003c\/li\u003e\n\u003cli\u003eCompatible with popular VFD brands like Huanyang, YL600, and others\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIndustrial Automation Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilding Automation Systems:\u003c\/strong\u003e HVAC control, lighting systems, security interfaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePLC Communication:\u003c\/strong\u003e Connect PLCs to computer systems for monitoring and control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSCADA Systems:\u003c\/strong\u003e Data acquisition and supervisory control applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModbus Networks:\u003c\/strong\u003e Support for Modbus RTU protocol communication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Sensors:\u003c\/strong\u003e Connect temperature, pressure, and flow sensors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Handling:\u003c\/strong\u003e Conveyor systems, sorting equipment, packaging machinery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation and Setup Guide\u003c\/h2\u003e\n\u003ch3\u003eSystem Requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Systems:\u003c\/strong\u003e Windows 11, 10, 8, 7, XP, Mac OS, Linux\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Port:\u003c\/strong\u003e Available USB 2.0 or higher port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver Support:\u003c\/strong\u003e FTDI drivers (usually auto-installed)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Steps\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDriver Installation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWindows: Drivers typically install automatically via Windows Update\u003c\/li\u003e\n\u003cli\u003eFor manual installation, use the included CD or download latest FTDI drivers\u003c\/li\u003e\n\u003cli\u003eMac\/Linux: Drivers usually included in modern OS versions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePhysical Connection:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect the USB end to your computer\u003c\/li\u003e\n\u003cli\u003eWire your RS485\/RS422 devices to the terminal board\u003c\/li\u003e\n\u003cli\u003eEnsure proper cable shielding and grounding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTerminal Board Wiring:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS485 (Half-duplex):\u003c\/strong\u003e Use A(+) and B(-) terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRS422 (Full-duplex):\u003c\/strong\u003e Use separate transmit and receive pairs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround:\u003c\/strong\u003e Connect signal ground for proper operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eWiring Configurations\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eRS485 Two-Wire Configuration:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTerminal A(+) → Device A(+) or Data+\u003c\/li\u003e\n\u003cli\u003eTerminal B(-) → Device B(-) or Data-\u003c\/li\u003e\n\u003cli\u003eGround → Signal ground (recommended)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRS422 Four-Wire Configuration:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTX+ → Device RX+\u003c\/li\u003e\n\u003cli\u003eTX- → Device RX-\u003c\/li\u003e\n\u003cli\u003eRX+ → Device TX+\u003c\/li\u003e\n\u003cli\u003eRX- → Device TX-\u003c\/li\u003e\n\u003cli\u003eGround → Signal ground\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSoftware Configuration\u003c\/h2\u003e\n\u003ch3\u003eCOM Port Settings\u003c\/h3\u003e\n\u003cp\u003eOnce installed, the adapter appears as a standard COM port in your system:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaud Rate:\u003c\/strong\u003e Match your device requirements (common: 9600, 19200, 38400, 115200)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData Bits:\u003c\/strong\u003e Typically 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParity:\u003c\/strong\u003e Usually None or Even\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStop Bits:\u003c\/strong\u003e Usually 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow Control:\u003c\/strong\u003e Hardware or None\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCNC Software Integration\u003c\/h3\u003e\n\u003cp\u003eMost CNC software packages support serial communication:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMach3\/Mach4:\u003c\/strong\u003e Configure as standard COM port\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLinuxCNC:\u003c\/strong\u003e Use as serial device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGRBL:\u003c\/strong\u003e Compatible with GRBL-based controllers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom Applications:\u003c\/strong\u003e Use standard serial communication libraries\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTroubleshooting Guide\u003c\/h2\u003e\n\u003ch3\u003eCommon Issues and Solutions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDevice Not Recognized:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCheck USB cable connection\u003c\/li\u003e\n\u003cli\u003eVerify driver installation\u003c\/li\u003e\n\u003cli\u003eTry different USB port\u003c\/li\u003e\n\u003cli\u003eCheck Device Manager for COM port assignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCommunication Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVerify baud rate settings match between devices\u003c\/li\u003e\n\u003cli\u003eCheck wiring connections and polarity\u003c\/li\u003e\n\u003cli\u003eEnsure proper grounding\u003c\/li\u003e\n\u003cli\u003eVerify RS485\/RS422 mode selection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIntermittent Connection:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCheck cable integrity\u003c\/li\u003e\n\u003cli\u003eVerify power supply to connected devices\u003c\/li\u003e\n\u003cli\u003eEnsure cables are within distance specifications\u003c\/li\u003e\n\u003cli\u003eCheck for electrical interference\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Optimization:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse shielded cables for long runs\u003c\/li\u003e\n\u003cli\u003eImplement proper cable termination\u003c\/li\u003e\n\u003cli\u003eEnsure adequate power supply for all devices\u003c\/li\u003e\n\u003cli\u003eConsider using repeaters for very long distances\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAdvanced Features\u003c\/h2\u003e\n\u003ch3\u003eAutomatic Data Flow Control\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-direction Control:\u003c\/strong\u003e Automatically switches between transmit and receive modes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZero Delay:\u003c\/strong\u003e Minimal latency for real-time applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollision Detection:\u003c\/strong\u003e Prevents data collisions in multi-device networks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLED Indicators\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower LED:\u003c\/strong\u003e Indicates USB power and device status\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTX LED:\u003c\/strong\u003e Shows data transmission activity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRX LED:\u003c\/strong\u003e Shows data reception activity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMaintenance and Best Practices\u003c\/h2\u003e\n\u003ch3\u003eInstallation Best Practices\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAlways use proper cable management and strain relief\u003c\/li\u003e\n\u003cli\u003eImplement adequate grounding systems\u003c\/li\u003e\n\u003cli\u003eUse appropriate cable gauge for current requirements\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer's distance and load specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRegularly inspect connections for corrosion or damage\u003c\/li\u003e\n\u003cli\u003eKeep terminals clean and free from debris\u003c\/li\u003e\n\u003cli\u003eMonitor LED indicators for proper operation\u003c\/li\u003e\n\u003cli\u003eUpdate drivers periodically for optimal performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety Considerations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAlways disconnect power before making wiring changes\u003c\/li\u003e\n\u003cli\u003eUse appropriate personal protective equipment\u003c\/li\u003e\n\u003cli\u003eFollow local electrical codes and regulations\u003c\/li\u003e\n\u003cli\u003eEnsure proper equipment grounding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Requirements (Not Included):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAppropriate serial cables for your devices\u003c\/li\u003e\n\u003cli\u003eTerminal screwdrivers for connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe DTECH USB to RS422\/RS485 Serial Adapter represents an excellent value for CNC operators, industrial automation professionals, and electronics enthusiasts who need reliable serial communication. Its robust construction, comprehensive protection features, and broad compatibility make it suitable for both hobby and professional applications.\u003c\/p\u003e\n\u003cp\u003eWhether you're controlling a VFD spindle, interfacing with industrial sensors, or building a custom automation system, this adapter provides the reliable communication bridge between modern computers and industrial serial devices.\u003c\/p\u003e","brand":"BuildYourCNC","offers":[{"title":"Default Title","offer_id":46667709317294,"sku":null,"price":31.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/Screenshot2025-07-11152416.png?v=1752261951"},{"product_id":"cnc-spindle-speed-control-bundle","title":"CNC Spindle Speed Control Bundle","description":"\u003cdiv style=\"font-family: Arial, sans-serif; line-height: 1.6; color: #222;\"\u003e\n\n  \u003ch2 style=\"font-size: 24px; margin-bottom: 10px;\"\u003eCNC Spindle Speed Control Bundle\u003c\/h2\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    The \u003cstrong\u003eCNC Spindle Speed Control Bundle\u003c\/strong\u003e is built for CNC users who want to control spindle speed and switch an accessory circuit from their CNC control system. This bundle pairs the \u003cstrong\u003eC41S-PWM Spindle Speed Control Board\u003c\/strong\u003e with the \u003cstrong\u003eC37 Single Relay Board\u003c\/strong\u003e, giving you a practical setup for VFD spindle control, spindle enable wiring, coolant control, contactor triggering, or other CNC accessory switching.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    This is a cleaner option than buying parts separately and trying to figure out later what else is needed. The C41S-PWM handles the spindle speed signal, while the C37 gives you a dedicated relay output for switching one compatible AC or DC device.\n  \u003c\/p\u003e\n\n  \u003cdiv style=\"background: #f6f6f6; border-left: 4px solid #333; padding: 15px 18px; margin: 22px 0;\"\u003e\n    \u003cstrong\u003eBest for:\u003c\/strong\u003e CNC routers, CNC mills, VFD spindle setups, spindle enable circuits, coolant pump control, contactor triggering, and CNC control box upgrades.\n  \u003c\/div\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eWhat’s Included\u003c\/h3\u003e\n\n  \u003cul style=\"padding-left: 22px; margin-bottom: 22px;\"\u003e\n    \u003cli\u003e\n      \u003cstrong\u003eC41S-PWM Spindle Speed Control Board\u003c\/strong\u003e\u003cbr\u003e\n      Converts a PWM signal into a \u003cstrong\u003e0–10V analog output\u003c\/strong\u003e for compatible VFD and spindle speed control.\n      \u003cbr\u003e\n      \u003ca href=\"\/products\/c41s-pwm-spindle-speed-control-board-with-0-10v-analog-output\" style=\"color: #0056b3; text-decoration: underline;\"\u003eView full C41S-PWM specs\u003c\/a\u003e\n    \u003c\/li\u003e\n\n    \u003cli style=\"margin-top: 14px;\"\u003e\n      \u003cstrong\u003eC37 Single Relay Board\u003c\/strong\u003e\u003cbr\u003e\n      Provides one relay output for switching a spindle enable circuit, coolant pump, contactor, valve, or other compatible CNC accessory.\n      \u003cbr\u003e\n      \u003ca href=\"\/products\/c37-single-relay-board-for-cnc-accessory-control\" style=\"color: #0056b3; text-decoration: underline;\"\u003eView full C37 relay board specs\u003c\/a\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eWhy Buy This Bundle?\u003c\/h3\u003e\n\n  \u003cul style=\"padding-left: 22px; margin-bottom: 22px;\"\u003e\n    \u003cli\u003e\n      \u003cstrong\u003eControl spindle speed from your CNC system:\u003c\/strong\u003e\n      The C41S-PWM outputs the 0–10V analog signal used by many compatible VFDs for external spindle speed control.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cstrong\u003eAdd a dedicated relay output:\u003c\/strong\u003e\n      The C37 gives you one relay-controlled output for spindle enable, coolant, contactor triggering, solenoids, or another compatible accessory.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cstrong\u003eCleaner control box layout:\u003c\/strong\u003e\n      These boards help organize spindle and accessory control inside your CNC cabinet instead of leaving the wiring scattered across separate components.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cstrong\u003eBetter than guessing parts individually:\u003c\/strong\u003e\n      Many CNC builders realize they need both speed control and relay switching. This bundle gives you both together.\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cstrong\u003eUseful for VFD-based spindle setups:\u003c\/strong\u003e\n      If your VFD supports external 0–10V analog speed control, this bundle gives you a strong starting point for CNC-controlled spindle operation.\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eCommon Uses\u003c\/h3\u003e\n\n  \u003cul style=\"padding-left: 22px; margin-bottom: 22px;\"\u003e\n    \u003cli\u003eVFD spindle speed control\u003c\/li\u003e\n    \u003cli\u003eCNC-controlled spindle on\/off or enable wiring\u003c\/li\u003e\n    \u003cli\u003eCoolant pump switching\u003c\/li\u003e\n    \u003cli\u003eContactor triggering for larger spindle systems\u003c\/li\u003e\n    \u003cli\u003eSolenoid or electro-valve control\u003c\/li\u003e\n    \u003cli\u003eCNC router or CNC mill control box upgrades\u003c\/li\u003e\n    \u003cli\u003eReplacing manual spindle speed adjustment with CNC-controlled speed output\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eSimple Explanation\u003c\/h3\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    The \u003cstrong\u003eC41S-PWM\u003c\/strong\u003e helps your CNC controller send a speed command to a compatible VFD or spindle drive. The \u003cstrong\u003eC37\u003c\/strong\u003e acts like a CNC-controlled switch for one external device. Together, they help you build a cleaner spindle-control section inside your CNC control box.\n  \u003c\/p\u003e\n\n  \u003cp style=\"font-size: 16px; margin-bottom: 18px;\"\u003e\n    This bundle is best for customers who want spindle speed control plus one relay-controlled output without having to piece the parts together separately.\n  \u003c\/p\u003e\n\n  \u003ch3 style=\"font-size: 20px; margin-top: 28px;\"\u003eImportant Compatibility Notes\u003c\/h3\u003e\n\n  \u003cul style=\"padding-left: 22px; margin-bottom: 22px;\"\u003e\n    \u003cli\u003eThe C41S-PWM is \u003cstrong\u003enot a VFD\u003c\/strong\u003e and is \u003cstrong\u003enot a spindle drive\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003eYour VFD or motor controller must support external \u003cstrong\u003e0–10V analog speed control\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003eYour CNC controller must provide the required PWM\/control signal.\u003c\/li\u003e\n    \u003cli\u003eThe C37 relay board must be matched to the voltage and current requirements of the device you plan to switch.\u003c\/li\u003e\n    \u003cli\u003eFor larger motors, pumps, or high-current devices, use the relay to trigger a properly rated contactor instead of switching the load directly.\u003c\/li\u003e\n    \u003cli\u003eAlways verify your controller, VFD, relay load, wiring, and software settings before connecting power.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cdiv style=\"background: #fff8e5; border: 1px solid #e0c878; padding: 15px 18px; margin-top: 24px;\"\u003e\n    \u003cstrong\u003eNeed help confirming compatibility?\u003c\/strong\u003e\n    \u003cp style=\"margin: 8px 0 0 0;\"\u003e\n      If you are not sure whether this bundle is right for your CNC spindle, VFD, or control box, contact us before ordering. We can help you check your controller output, VFD input requirements, and relay-control needs.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"BuildYourCNC","offers":[{"title":"Default Title","offer_id":47835021705390,"sku":null,"price":56.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0664\/7516\/3822\/files\/e64b69c5-b433-4a65-bfe0-90f4ab03604e_35b94c7f-1cde-4036-847d-df41bb1ba96d.jpg?v=1778288451"}],"url":"https:\/\/buildyuurcnc.com\/collections\/spindles-and-vfds.oembed","provider":"BuildYourCNC","version":"1.0","type":"link"}