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Zebras begone!

Posted: July 31st, 2017, 7:55 pm
by Neotko


So sweet

Will need more tests and probably to install heat sinks on stepper chips (I already did install them past summer)

So sweet 8€ upgrade

Re: Zebras begone!

Posted: July 31st, 2017, 9:45 pm
by LePaul
What causes those and what was the fix?

Re: Zebras begone!

Posted: August 1st, 2017, 3:46 am
by Neotko

Re: Zebras begone!

Posted: August 1st, 2017, 3:49 am
by Neotko
UM steppers (umo+, um2, um3) have a decay issue that makes that error (better explained on the forum link). This TL-Smooth fix it for just 8€.

Ofc this tl-Smooth is a china creation from a guy post without his consent, but on the good side they work and they are cheap.

Anyhow this requires more time test (to be safe) but I think this just works.

Re: Zebras begone!

Posted: August 1st, 2017, 10:49 am
by LePaul
That's a pretty fascinating problem and solution...a very interesting read from the link (http://www.engineerination.com/2015/02/ ... steps.html) that Labern mentioned

Re: Zebras begone!

Posted: August 1st, 2017, 1:27 pm
by Neotko
Indeed I found the chips, labern dig deepeyand found that all the aliexpress seller key i fo comes from that guy development.

One could blame the china seller, but also the guy that found it never did anything with it. And for 8€ is a nice improvement for the umo/um2/um3 stepper chips

Re: Zebras begone!

Posted: August 1st, 2017, 5:01 pm
by MTVDNA
Can you show a bit more about how you installed them?

Re: Zebras begone!

Posted: August 1st, 2017, 5:17 pm
by Neotko
I will try to make a fast video showing the key points without talking too much :D

Re: Zebras begone!

Posted: August 24th, 2017, 10:34 am
by Titus
Hm, next week they are on sale on aliexpress, €6.51 for a set of 3. Might even order them, though I hardly print, and never noticed the problem what so ever. I'll check my old prints though.

@Neotko, you mentioned silent, that is a different solution path right? When I was printing again after a year the sound drove me nuts.

Re: Zebras begone!

Posted: August 24th, 2017, 11:32 am
by Neotko
Titus wrote: August 24th, 2017, 10:34 am Hm, next week they are on sale on aliexpress, €6.51 for a set of 3. Might even order them, though I hardly print, and never noticed the problem what so ever. I'll check my old prints though.

@Neotko, you mentioned silent, that is a different solution path right? When I was printing again after a year the sound drove me nuts.



Indeed the 'silent' drivers it's other solution, for that you could move to a Duet3D board, or if you don't use PT100 maybe even a cheap Lerdge china, but so far this china nonopensource is quite basic, but ofc, it prints.