Duet3D 1HCL - Closed Loop Controller Beta test

T3P3Tony

@gruna-studio I am using the default step timing (i.e. no T parameters in M569)

samlogan87

@dc42 or @T3P3Tony has stall detection been implemented on these boards? Thinking of getting rid of the end stops if possible

dc42

@samlogan87 stall detection should work in open loop mode, however RRF cannot yet use stall homing for motors connected to expansion boards.

samlogan87

@dc42 bugger. Thanks for that. Any idea when it might be implemented

dc42

@samlogan87 we're planning to implement it in RRF 3.5.

Note, stall homing is less accurate than homing using a switch; so not recommended if you want to support resume-after-power-fail.

A Former User

@t3p3tony
Ok thanks a lot

I have constant layer shift on X axis. Can't solve it since days and several more boards are on the way.
Open a thread was not helping because nobody answered. Haha

Please help me

T3P3Tony

@gruna-studio I saw you deleted the thread, I was not sure why. Do you want to restore that thread so we can discuss the issue there? If you like I can restore the thread for you.

A Former User

@t3p3tony

I have already trying a lot of things, so that this thread wasn't actual anymore.

Then I made a new one which is still online but after two days I could delete that, too.
It's also not up to date anymore.

I'm Sorry

So I'll change the boards and motors later on and will make a new thread.
Did you use 48 volt?
I "saw" a shift. The motor was less noisy and slower then normal for a short second. Like you shift in a to low gear in a car.
Thanks for you reply
I just ordered 4 more 1HCL - I'm very optimistic

Thanks
Richard

T3P3Tony

@gruna-studio please do repost with an uptodate setup.

I used 24V on my printer thus far.

cloudseeds

@t3p3tony Thanks, snagged some up at Compass! Excited to try them!

samlogan87

Finally got the printer back up and running after rebuilding most of the mechanism. Still need to square it up as I think some of the noise is rail misalignment. That’s 1000mm/s at 30000mm/s acceleration using 48v to drive the boards

https://youtu.be/Mn7kX0dptjs

A Former User

@samlogan87
Nice