Picked up a different spindle controller, about $10.
old one below, new one above.
Says it is good for 300W,,spindle claims 400W, we'll see about that ;)
Wired it up power nearest the blue pot, and motor goes to LOAD, set the blue pot to zero and switched it on, spindle didn't turn so good so far. Turned the pot and the spindle popped into life.
This one actually says 0-5V PWM, but what the heck lets try it anyway
PWM + GND from TinyG
Added to motor controller and moved yellow jumper to J21
fired up chilipeppr
and it jumped into life, set it to off with
and it turned off, so great so far! Much better than the other one which would have the spindle on all the time.
Here are the settings i have.
$p1 [p1frq] pwm frequency 5000 Hz [p1csl] pwm cw speed lo 0 RPM [p1csh] pwm cw speed hi 10000 RPM [p1cpl] pwm cw phase lo 0.000 [0..1] [p1cph] pwm cw phase hi 1.000 [0..1] [p1wsl] pwm ccw speed lo 1000 RPM [p1wsh] pwm ccw speed hi 2000 RPM [p1wpl] pwm ccw phase lo 0.125 [0..1] [p1wph] pwm ccw phase hi 0.200 [0..1] [p1pof] pwm phase off 0.000 [0..1]