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Prints getting shunted sideways part way up

Posted by friarfish 
Prints getting shunted sideways part way up
January 18, 2016 12:05AM
Okay, this is not a consistent problem.
I have a print right now that about a mm or so up from the base
has been moved 2mm across. What is causes this? Is this one of
those comms errors i've heard pronterface suffers from?
Re: Prints getting shunted sideways part way up
January 18, 2016 08:11AM
Shifted layers are from the motor skipping steps.
Re: Prints getting shunted sideways part way up
January 18, 2016 09:53AM
Lots of possible causes, take a look through this excellent summary: [reprap.org]
Re: Prints getting shunted sideways part way up SOLVED
January 19, 2016 05:57AM
Hey folks,
I hadn't realised the USB comms were so dicky. I think I will write it off
as just that. Time to dig out the old SD cards.

Thanks for the help.
Andrew
Re: Prints getting shunted sideways part way up SOLVED
January 19, 2016 07:00AM
If a print shifts and stays shifted, or continues to shift, I don't think that is a usb comms problem. The g-code coordinates are absolute, so you can't get an offset through a comms problem.
Re: Prints getting shunted sideways part way up
January 19, 2016 07:28AM
Without a picture, without knowing what sort of machine you have, and without knowing any of the printing parameters such as speed, acceleration, and jerk, it's pretty hard to say what is causing your problem.


Son of MegaMax 3D printer: [www.instructables.com]
Ultra MegaMax Dominator 3D printer: [drmrehorst.blogspot.com]
Re: Prints getting shunted sideways part way up SOLVED
January 21, 2016 04:31AM
The erratic occurrence of this problem make me lean towards a comms error.
I'll reprint the same model a few times and the problem won't occur.
A bit annoying but I think I'll switch to SD card for big stuff from now on.

Thanks folks for the help.


Andrew
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