Brother TC-225 / TC-229 adventure!

You are going to need a faster-responding spindle to make orient work.

Spindle accel rates are generally programmed in to the spindle drive.

Ok acceleration is fast 6000rpm to minus 6000rpm in 200ms maybe.

It's the m5 that's just coasting. How do we make it hit the brakes?

andypugh wrote: You are going to need a faster-responding spindle to make orient work.

Spindle accel rates are generally programmed in to the spindle drive.

It's an ad servo with 1024 line encoders. It's about as fast as it gets.

ihavenofish wrote: Ok acceleration is fast 6000rpm to minus 6000rpm in 200ms maybe.

It's the m5 that's just coasting. How do we make it hit the brakes?

What happens if you command S1 before M5?

M5 turns off the "spindle-on" HAL pins (whichever you used) It may be that that makes the drive coast rather than brake.

ihavenofish wrote: It's an ad servo with 1024 line encoders. It's about as fast as it gets.

wiki.linuxcnc.org/cgi-bin/wiki.pl?SpindleOrient

Shows how to have a spindle closed-loop in both position mode and velocity mode.

S1 them m5 is instant. Maybe that's an easy work around for now.

So we have a working spindle.... now on to orienting.