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Re: Problem with a Prusa i3 Pro C controller and Z axis
Posted: Wed Aug 10, 2016 6:38 am
by aja175
If I'm not using the lead screws you provided (they were both bent so i bought different ones) will this still work
(note: I adjusted the Z axis steps/mm for the screws I have)
#define DEFAULT_AXIS_STEPS_PER_UNIT {78.74,78.74,1600,95}
or do I need to tell the firmware that the screws have a 2mm pitch -
#define DEFAULT_AXIS_STEPS_PER_UNIT {78.74,78.74,1600/2,95}
Re: Problem with a Prusa i3 Pro C controller and Z axis
Posted: Wed Aug 10, 2016 9:23 am
by William
aja175 wrote:If I'm not using the lead screws you provided (they were both bent so i bought different ones) will this still work
What you exactly mean by saying this?
The lead screws?You mean the threaded rods?Are the ones the same as ours?Could you take a picture of them?
Re: Problem with a Prusa i3 Pro C controller and Z axis
Posted: Wed Aug 10, 2016 9:35 am
by aja175
The rods that came in the kit were both slightly bent. Rather than try to straighten those out I bought new ones that are a different pitch.
I accounted for the change of rods in the steps/mm setting, although since I can't upload firmware successfully I can't change any other parameters.
The screw you shipped is on the right. The screw I replaced it with is the larger pitch
- Lead screws
- screws.jpg (156.45 KiB) Viewed 13929 times
Lead Screw Diameter: 8mm
Screw Pitch: 2mm
Lead: 8mm
Lead Screw Length: 300mm
I've mentioned this previously.
Re: Problem with a Prusa i3 Pro C controller and Z axis
Posted: Wed Aug 10, 2016 9:46 am
by aja175
I just put the screws provided in the kit back on, the problem is still there.
Re: Problem with a Prusa i3 Pro C controller and Z axis
Posted: Wed Aug 10, 2016 4:23 pm
by William
You can contact the seller to have a board replacement.It worth a try on a new one.
Re: Problem with a Prusa i3 Pro C controller and Z axis
Posted: Wed Aug 10, 2016 10:51 pm
by aja175
Ok, I'll check with the seller
Thank you for your time and assistance, I appreciate it!
Re: Problem with a Prusa i3 Pro C controller and Z axis
Posted: Fri Aug 12, 2016 5:48 pm
by William
Re: Problem with a Prusa i3 Pro C controller and Z axis
Posted: Tue Aug 16, 2016 10:44 am
by aja175
I uncommented both settings as described, it didn't help
Re: Problem with a Prusa i3 Pro C controller and Z axis
Posted: Tue Aug 23, 2016 11:04 am
by aja175
Ok, so I've been talking to the seller, they sent me a new GT2560.
Good news, that fixed the problem with the Z axis
Bad news, now neither extruder moves.
The seller sent me back to you to figure out why that's happening
When I check the voltage across the stepper drivers they're showing 12v. What should the voltage be?
Re: Problem with a Prusa i3 Pro C controller and Z axis
Posted: Tue Aug 23, 2016 3:50 pm
by William
aja175 wrote:Ok, so I've been talking to the seller, they sent me a new GT2560.
Good news, that fixed the problem with the Z axis
Bad news, now neither extruder moves.
The seller sent me back to you to figure out why that's happening
When I check the voltage across the stepper drivers they're showing 12v. What should the voltage be?
Hi,
You mean the voltage of which two pins?