Search found 3 matches

by MX39
Fri Dec 11, 2020 11:27 pm
Forum: Stepper Motor
Topic: Turning up current - A4988
Replies: 9
Views: 59844

Re: Turning up current - A4988

Hi Andrea,
right now I'm on

the TMC2208's in the original Motherboard (GT2560 V3.0)
They use R110-type current sensing resistors (0.11 Ohm ):
- 1A-drives: 8*1 A *0.11 Ohm = 0.88 V
- 1.68A-drive: 8*1.68 A *0.11 Ohm = 1.48 V

and I don't see issues yet.
But I really only did some test-prints for ...
by MX39
Fri Nov 20, 2020 3:32 am
Forum: Stepper Motor
Topic: Turning up current - A4988
Replies: 9
Views: 59844

Re: Turning up current - A4988

Okay guys, I'm back... :roll:
I ended up not changing the voltage on the standard A4988's yet, even though some of the steppers got really hot and sometimes I had repeatable step-skipping on SOME prints.
I had to keep the printer close around me, as there were quite a lot of fails - especially with ...
by MX39
Thu Oct 03, 2019 9:36 pm
Forum: Stepper Motor
Topic: Turning up current - A4988
Replies: 9
Views: 59844

Re: Turning up current - A4988

Hi,
I'm new to 3D-printing and bought myself an A20M some weeks ago.
Today I wanted to tune the stepper drivers, but I got a little confused by this thread as my voltage settings should apparently be totally different.
Supply voltage is supposed to be 5 V.
It uses the A4988ET chips, so I Max Driver ...