after not using the focuser for a few months it wouldn't start up anymore.
Now,after changing firmware to the latest everything seems allright except that what ever I try the focuser will only travel in one direction.
If I try to move it out,it moves out and when I try to move it in it also moves out
I've tried several 8825 boards and arduino's but the problem stays.
some times it will reverse direction for a few moves and then it goes back to one direction only.
Also will it only run on the fastest speed.
With the new firmware I also added pushbuttons and while pushing them changes steps on the lcd they do not move the stepper although ther is a ticking sound coming from them.
I use the Focuserv279_DRV8825.ino firmware with pg 27 stepper.
Could you point me into the right direction to solve this?
best regards
Patrick Kastelijn
Last edit: Patrick Kastelijn 2019-02-17
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I would check your stepper wiring from drv8825 to stepper motor - look very closely and check with a multimeter. Sounds like you have one stepper wire not having contact. Irratic movement like you describe points to a loose stepper wire. (or a short on a stepper wire to ground)
Thank you very much for your quick reply and help.
It was indeed one of the stepper wires making a bad connection
Took me some time to find which and where but everything is working as a charm again,including pushbuttons.
Thanks Robert
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hi Robert,
after not using the focuser for a few months it wouldn't start up anymore.
Now,after changing firmware to the latest everything seems allright except that what ever I try the focuser will only travel in one direction.
If I try to move it out,it moves out and when I try to move it in it also moves out
I've tried several 8825 boards and arduino's but the problem stays.
some times it will reverse direction for a few moves and then it goes back to one direction only.
Also will it only run on the fastest speed.
With the new firmware I also added pushbuttons and while pushing them changes steps on the lcd they do not move the stepper although ther is a ticking sound coming from them.
I use the Focuserv279_DRV8825.ino firmware with pg 27 stepper.
Could you point me into the right direction to solve this?
best regards
Patrick Kastelijn
Last edit: Patrick Kastelijn 2019-02-17
Assuming you have adjusted the current
https://www.youtube.com/watch?v=3TIrv_IkQuY
I would check your stepper wiring from drv8825 to stepper motor - look very closely and check with a multimeter. Sounds like you have one stepper wire not having contact. Irratic movement like you describe points to a loose stepper wire. (or a short on a stepper wire to ground)
See
https://www.dropbox.com/s/27z72mfjdpfbd9z/myFocuserPro2M%20FAQ.pdf?dl=0
Robert
Solved!
Thank you very much for your quick reply and help.
It was indeed one of the stepper wires making a bad connection
Took me some time to find which and where but everything is working as a charm again,including pushbuttons.
Thanks Robert