using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 01, 2016 11:26PM |
Registered: 7 years ago Posts: 14 |
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 02, 2016 04:12AM |
Registered: 10 years ago Posts: 14,672 |
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 02, 2016 08:12AM |
Registered: 8 years ago Posts: 475 |
M566 X1200 Y1200 Z800 E500:500Note that the reduced Z instant speed change compared to X/Y was to stop my effector from jumping in its supports at every layer change.
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 02, 2016 04:54PM |
Registered: 7 years ago Posts: 14 |
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 02, 2016 06:00PM |
Registered: 8 years ago Posts: 475 |
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 02, 2016 06:27PM |
Registered: 7 years ago Posts: 14 |
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 02, 2016 07:47PM |
Registered: 7 years ago Posts: 14 |
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 02, 2016 10:03PM |
Registered: 8 years ago Posts: 475 |
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 03, 2016 03:14AM |
Registered: 8 years ago Posts: 117 |
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 03, 2016 10:45AM |
Registered: 7 years ago Posts: 14 |
Quote
PRZ
So, what you have is shifting layers?
Have a look to this page : [forums.matterhackers.com]
This thread is also interesting, even if I think your problem is different : [forums.reprap.org]
Considering the size of your printer, you may have the belt jumping on teeth.
Your belt shall be well tensioned. But not too much. Excessive tension can also cause step loss. Check if the belt is not rubbing on pulley flanges and that your stepper is well perpendicular.
Also check your pulleys are well tightened on shaft. This is a common problem.
Another possibility is that driver overheat. You may try to reduce the current to 1400.
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 04, 2016 08:16PM |
Registered: 7 years ago Posts: 14 |
Quote
demonio669
Quote
PRZ
So, what you have is shifting layers?
Have a look to this page : [forums.matterhackers.com]
This thread is also interesting, even if I think your problem is different : [forums.reprap.org]
Considering the size of your printer, you may have the belt jumping on teeth.
Your belt shall be well tensioned. But not too much. Excessive tension can also cause step loss. Check if the belt is not rubbing on pulley flanges and that your stepper is well perpendicular.
Also check your pulleys are well tightened on shaft. This is a common problem.
Another possibility is that driver overheat. You may try to reduce the current to 1400.
I'll try to reduce current to see what happens. Thanks!
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 04, 2016 09:00PM |
Registered: 8 years ago Posts: 475 |
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 07, 2016 06:42PM |
Registered: 7 years ago Posts: 14 |
Quote
PRZ
Yes, there is thermal shutdown in the drivers. The recovery can be quite fast (say, a fraction of a second), so this can cause intermittent working and that is difficult to diagnose. But you don't have loss on three steppers, probably only one. Shifting occur when you loose step on one column only.
You could do much more than 1000 mA, and considering the size of your machine 1350 to 1400 mA might be a better choice.
With your parameters forced cooling is not an option and shall be cautiously designed.
You need appropriate forced cooling, which cool the underside of the board as much as the top.
I've run up to 1400 mA on movement with the extruder driver at 1500, but my board is installed vertically and on 15mm columns to have good airflow on both faces. The ideal shall be to have airflow guides. I reduced current on movement since, as I somewhat reduced the acceleration to lower mechanical stress.
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 08, 2016 10:00AM |
Registered: 9 years ago Posts: 15 |
Re: using iES-1706 (Nema 17 85 oz-in/0.6 N.m) with Duet September 08, 2016 11:23AM |
Registered: 7 years ago Posts: 14 |