Closed Loop Motors SYNC problems

alankilian

I found a data sheet with the timing values on Page #12.

It says 2.5:2.5:6:6 should work, but let's try slower than that so that if your drive current through the motor controller's internal LED is a bit low it will still work.

Can you tell us how you have the Duet wired to the Motor controller please?

Try this and see if it helps:

; Drives

M569 P5 S1 R1 T10:10:10:10  ; Extruder drive 0 goes Forward
M569 P6 S1 R0 T10:10:10:10  ; X:A drive 1 goes Forward
M569 P7 S1 R0 T10:10:10:10  ; Y:B drive 2 goes Forward
M569 P8 S1 R0 T10:10:10:10  ; Z:C physical drive 3 goes Forward

Make some slow moves and see if the motors sound good and move the correct distance.

Then try some faster moves. At some speed, things will start to fail and we can help adjust to get better numbers.

You need to get slow moves sounding nice and moving the correct distance first.

sozkan

@jay_s_uk said in Closed Loop Motors SYNC problems:

@sozkan i am sorry but I can't help you any further then.
hopefully someone else can...

Thank you very much for your effort and kind suggestion, I really appreciate it.

I will first try with different acceleration. I also find on some other sources, they called ghosting. Delays due to individual acceleration may cause deflection. You know as delta, some of the axes have to run very fast even for a few millimeters compared to another axis to catch coordinates. So I try to decrease acceleration to see the difference. I will get a newer version Duet board and check with suggested settings aswell.

jay_s_uk

@sozkan if you want to use the duet 3 boards you'll also need 1XD external boards as theres no way to connect external drivers to them
I would also suggest that that would make no difference to your current issue

sozkan

@alankilian said in Closed Loop Motors SYNC problems:

@sozkan

I found a data sheet with the timing values on Page #12.

It says 2.5:2.5:6:6 should work, but let's try slower than that so that if your drive current through the motor controller's internal LED is a bit low it will still work.

Can you tell us how you have the Duet wired to the Motor controller please?

Try this and see if it helps:
; Drives

M569 P5 S1 R1 T10:10:10:10  ; Extruder drive 0 goes Forward
M569 P6 S1 R0 T10:10:10:10  ; X:A drive 1 goes Forward
M569 P7 S1 R0 T10:10:10:10  ; Y:B drive 2 goes Forward
M569 P8 S1 R0 T10:10:10:10  ; Z:C physical drive 3 goes Forward
Make some slow moves and see if the motors sound good and move the correct distance.

Then try some faster moves. At some speed, things will start to fail and we can help adjust to get better numbers.

You need to get slow moves sounding nice and moving the correct distance first.

I will try the T values for sure.

I set the connection based on the suggestion here in this thread: https://forum.duet3d.com/topic/18918/giant-delta-printer-slow-homing-issue/37

However, it is difficult to give a picture of the present stage due to the enclosure.

sozkan

@alankilian said in Closed Loop Motors SYNC problems:

@sozkan

I found a data sheet with the timing values on Page #12.

It says 2.5:2.5:6:6 should work, but let's try slower than that so that if your drive current through the motor controller's internal LED is a bit low it will still work.

Can you tell us how you have the Duet wired to the Motor controller please?

Try this and see if it helps:
; Drives

M569 P5 S1 R1 T10:10:10:10  ; Extruder drive 0 goes Forward
M569 P6 S1 R0 T10:10:10:10  ; X:A drive 1 goes Forward
M569 P7 S1 R0 T10:10:10:10  ; Y:B drive 2 goes Forward
M569 P8 S1 R0 T10:10:10:10  ; Z:C physical drive 3 goes Forward
Make some slow moves and see if the motors sound good and move the correct distance.

Then try some faster moves. At some speed, things will start to fail and we can help adjust to get better numbers.

You need to get slow moves sounding nice and moving the correct distance first.

I really appreciate your help. Motor Sounds even better and smooth stronger also precise on moves. Now I am testing the printing results. Let see how it works. I can later share the video.

All my best to all of you. I could not achieve this without your help.

The only problem is the extruder drive which is provided by the dyze design a simple stepper motor. It seems not moving.

sozkan

@sozkan By the way I have reduced the acceleration value from 1000 to 250. It was before the Pulse width changes. It seems was also helped to correct moves. But I am not very sure.

sozkan

@jay_s_uk said in Closed Loop Motors SYNC problems:

@sozkan if you want to use the duet 3 boards you'll also need 1XD external boards as theres no way to connect external drivers to them
I would also suggest that that would make no difference to your current issue

Thank you for insisting on correct settings. By changing M569 P values like you said and T values like alankillian mentioned it worked perfectly.

But only extruder I kept P1 and T values the dyze design recommended T values. Because P5 it did not move at all.

Present values

M569 P1 S1 R1 T3:3:5:0      ; Extruder drive 0 goes Forward
;M569 P5 S1 R1 T3:3:5:0   ; Extruder drive 0 goes Forward ; extruder not running in this setup. 
M569 P6 S1 R0 T10:10:10:10  ; X:A drive 1 goes Forward
M569 P7 S1 R0 T10:10:10:10  ; Y:B drive 2 goes Forward
M569 P8 S1 R0 T10:10:10:10  ; Z:C physical drive 3 goes Forward

jay_s_uk

@sozkan ok. what do you have for your extruder then? can you post the full info?

sozkan

@jay_s_uk said in Closed Loop Motors SYNC problems:

@sozkan ok. what do you have for your extruder then? can you post the full info?

Dyze Design Extruder

Technical details

Firmware Details

jay_s_uk

@sozkan you'll probably need to set that a bit higher too
can you provide the model number of the driver they provide?

dc42

@sozkan how have you connected the expansion breakout board to the closed loop drivers? It might be that you may have the incorrect step polarity.

sozkan

@dc42 said in Closed Loop Motors SYNC problems:

@sozkan how have you connected the expansion breakout board to the closed loop drivers? It might be that you may have the incorrect step polarity.

Actually now closed-loop drivers are fine and perfectly worked the first time with all of your support. Only the last one the extruder open-loop stepper motor different one having issues.

By the way connection of the closed-loop motor was mentioned before in this thread:
https://forum.duet3d.com/topic/18918/giant-delta-printer-slow-homing-issue/35

sozkan

@jay_s_uk said in Closed Loop Motors SYNC problems:

@sozkan you'll probably need to set that a bit higher too
can you provide the model number of the driver they provide?

I think the extruder driver Dyze design provide is :
http://www.szruitech.com/Detail Page R60.html
R60 two-phase stepper driver.

it is Chinese so I relay on Dyze design documentations.