Duet3D 1HCL - Closed Loop Controller Beta test

[DHM-online]

@t3p3tony we confirm the first batch of 1HCL has just arrived here at Compass DHM projects!
Shipping all over Europe: https://www.dhm-online.com/schede-di-controllo/7869-duet-3-expansion-1hcl.html
The ones already back-ordered will be ship out today.

[A Former User]

Hey
Short question. Layer shifts are coming from bad tuning?
I have hysteresis about 0.25 on the x axis and I have layer shifts. Can this be the reason or do I have to show my g.code?
Thanks a lot
Richard

[T3P3Tony]

@gruna-studio can you start a new thread about this. It would be helpful to know the configured closed loop parameters and PID settings you are using. There is an updated release of the tuning plugin that should work with 3.4 RC1 (https://github.com/Duet3D/Closed-Loop-Plugin/releases/tag/v3.4-rc1), please post the step tuning move outcome as well.

[A Former User]

@t3p3tony
Ok. I'll open a new thread
Thanks a lot

[A Former User]

This post is deleted!

[A Former User]

This post is deleted!

[A Former User]

@t3p3tony
Hey
I think I'll try it with different timing.
I use the suggested nema 17 from stepperonline. Can you provide me your M569 T ?
I'm a bit frustrated
KR
Richard

[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