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Z homes move 70mm after home...

Posted: March 16th, 2016, 10:37 am
by Neotko
Hi I finishing tunning my third umo+ that has all the good stuff, except the board that's from china.

So my franken umo+ does home perfect but when it moves 1mm it thinks the 0 home it's at 70mm!

It's this something from um2 firmware?

I flashed it with amedee builder and esteps and all steps move perfect but it does this

Re: Z homes move 70mm after home...

Posted: March 16th, 2016, 10:45 am
by Neotko
Solved, connected by printrun/pronterface and got an Echo M206 that did had Z-70mm solved it by doing M206 Z0
hurray =)

Nothing like writing the stuff to find the sollution

Re: Z homes move 70mm after home...

Posted: March 16th, 2016, 10:46 am
by LePaul
I'm not sure what that answer is in the Queen's English....but weird for sure

Re: Z homes move 70mm after home...

Posted: March 16th, 2016, 10:56 am
by Amedee
To be sure, can you 'reset' NVRAM?

Re: Z homes move 70mm after home...

Posted: March 16th, 2016, 10:57 am
by Amedee
Ooops -- too late ;)

But I think it was the problem: some leftovers in the NVRAM...

Re: Z homes move 70mm after home...

Posted: March 16th, 2016, 11:49 am
by Neotko
Indeed that sounds like it. Weird I didnt knew that um2 needs a 70 offset from the endstop

Re: Z homes move 70mm after home...

Posted: March 16th, 2016, 11:59 am
by Neotko
Amedee wrote:To be sure, can you 'reset' NVRAM?
Hey amedee it's there anyway to read the nvram of the board to see how many hours I have used a printer? I know um2 has that, but on umo+ I never found out if was posible... Sorry just a random thought :D

Re: Z homes move 70mm after home...

Posted: March 16th, 2016, 1:11 pm
by Amedee
It is an UM2 feature, not a Marlin Original one ;)

It is something we could relatively easily do (most probably only for SD-Card jobs as I still can't figure out how to detect properly end of USB print jobs)

Re: Z homes move 70mm after home...

Posted: March 16th, 2016, 2:41 pm
by Neotko
That could be fun to have!