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mission:resources:picocnc [2015/01/26 12:07] – [DIY Direct-Drive Brushless Spindle] chronomission:resources:picocnc [2016/05/03 08:33] (current) – [DIY Direct-Drive Brushless Spindle] chrono
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   * Quality Ball Bearings   * Quality Ball Bearings
   * Universal Mounting Block (UMB) for direct flange or 43mm "Euro" mounting   * Universal Mounting Block (UMB) for direct flange or 43mm "Euro" mounting
 +
 === Brushless Outrunner Drive === === Brushless Outrunner Drive ===
  
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 === Brushless Controller === === Brushless Controller ===
  
-It would be great to have an already available open-resource brushless controller like the [[http://open-bldc.org/wiki/Open-BLDC|Open-BLDC]]. However, due to time constraints, a regular off-the-shelf BLDC for RC-Helicopters was chosen to start right away and test features like the governor mode to try to keep a steady spindle RPM when the tool bites into the material.+Spindle control and speed is managed comfortably with a [[http://autoquad.org/wiki/wiki/esc32/|ESC32]] or [[mission:log:2016:04:30:vesc-open-source-bldc-esc]] brushless engine speed controller originally intended to control our drone motors. Due to the open firmware nature of this module and the possibility to control the ESC through serial/CAN interface another module was purchased (additionally to the ones purchased for our Drone project) to be tested for the spindle setup.
  
-To control the BLDC a simple 555 circuit will have to do for now:+Alternatively, you can hack/use a simple 555 circuit like the following and control another off-the-shelf RC ESC with that:
  
   * http://robotrack.org/ulli/Servotester.jpg   * http://robotrack.org/ulli/Servotester.jpg
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   * http://www.helifreak.com/showthread.php?t=275749   * http://www.helifreak.com/showthread.php?t=275749
  
-In the future, a combination of an Open-BLDC with a PWM pin controlled by LinuxCNC may be a good solution to get software controlled spindle start/stop and RPM.+In the future, a combination of an ESC32 with fully integrated LinuxCNC control may be a good solution to get software controlled spindle start/stop and RPM. 
 === Collet Chuck === === Collet Chuck ===
  
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 === Bearings === === Bearings ===
  
-== Angular contact ball bearings ==+** Angular contact ball bearings **
  
 ^ Candidate ^ d ^ D ^ B ^ Max. RPM ^ ^ Candidate ^ d ^ D ^ B ^ Max. RPM ^
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 |[[http://medias.schaeffler.com/medias/en!hp.ec.br.pr/10*108-TVH;aY1-MTkkjSa8|INA 108-TVH]]| 8mm | 22mm | 7mm | 36.000 | |[[http://medias.schaeffler.com/medias/en!hp.ec.br.pr/10*108-TVH;aY1-MTkkjSa8|INA 108-TVH]]| 8mm | 22mm | 7mm | 36.000 |
  
-== Deep groove ball bearings ==+** Deep groove ball bearings **
  
 ^ Candidate ^ d ^ D ^ B ^ Max. RPM ^ ^ Candidate ^ d ^ D ^ B ^ Max. RPM ^
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 ~~CL~~ ~~CL~~
  
-== Possible Manufacturers for fabrication outsourcing ==+=== Possible Manufacturers for fabrication outsourcing ===
  
   * http://www.pauker-maschinenbau.eu/   * http://www.pauker-maschinenbau.eu/
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