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mission:resources:picocnc [2015-01-26 12:08] – [DIY Direct-Drive Brushless Spindle] chronomission:resources:picocnc [2016-05-03 08:33] (current) – [DIY Direct-Drive Brushless Spindle] chrono
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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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