problems with controlling stepper I use an arduino mega2560 with ramps and a4988 driver plus a nema17 stepper motor. My problem is that sometimes without changing value of direction pin, the direction of stepper changes. And my other problem is that for example when I make a code to turn 90degrees then delay it sometimes turns about 80degrees and sometimes turns about 100degrees. What should i do to correct these problems??? https://reprap.org/forum/read.php?1,591728,591728#msg-591728 Tue, 21 Jul 2026 03:37:56 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?1,591728,592346#msg-592346 Re: problems with controlling stepper https://reprap.org/forum/read.php?1,591728,592346#msg-592346 gmckee General Thu, 03 Dec 2015 11:43:18 -0500 https://reprap.org/forum/read.php?1,591728,592316#msg-592316 Re: problems with controlling stepper https://reprap.org/forum/read.php?1,591728,592316#msg-592316 no one knows about my problem.]]> hamidreza73 General Thu, 03 Dec 2015 10:14:08 -0500 https://reprap.org/forum/read.php?1,591728,591728#msg-591728 problems with controlling stepper https://reprap.org/forum/read.php?1,591728,591728#msg-591728
My problem is that sometimes without changing value of direction pin, the direction of stepper changes.

And my other problem is that for example when I make a code to turn 90degrees then delay it sometimes turns about 80degrees and sometimes turns about 100degrees.


What should i do to correct these problems???]]> hamidreza73 General Tue, 01 Dec 2015 23:10:41 -0500