Diy Brushless Spindle

[totts]

I use a comtroller from http://www.logicnc.com/rcnc.html

Its a bit strange at picking a speed at times but in a program it seems to run fine, many of hours running with this and enables fully automated control of my brushless spindle.

[dlang]

I use a comtroller from http://www.logicnc.com/rcnc.html

Everything I try to go to on that site asks for a password, is it still live?

[GordonFreeman]

Just got done with my DIY Brushless spindle. I had everything but the ER16 stub laying around. I'm using an old 320 kV motor and a VESC speed controller (skateboarding). First tests have been very promising, compared to the Colt trim router I'd been using.

The VESC will hold the RPM very close under varying loads. I've only tested it on 6S batteries, but my CNC runs on 42V so that should be close to getting it to speed.

I cast the adapter tube in Urethane (again, stuff laying around). A lot of work, but not bad for only needing to spend $20.

The VESC BLCD software will show volts, amps, etc. live if it's hooked up via USB. I always thought it would be a neat idea to slow the feed rates down based on load. I'm running LinuxCNC but have no idea how I'd hook all that up.

[dlang]

did you attache the stub directly to the motor? or did you build bearings between them?

[GordonFreeman]

I put 2 additional bearings on the stub and then a coupler from the stub to the motor. It's all held together by the casting. Everything lines up good, I just made a solid couple (no flex) hopefully that will be ok. Can't wait to try some actual work with it.