coolRR
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Will `G28 W` mid-print solve Z disorientation?

Oct 13, 2018 5:29 pm

I'm trying to figure out whether this could be a good solution to my problem.

I sometimes use the M600 gcode to make multi-color prints, i.e. change the color manually in the middle of the print.

It happened a few times that some filament got stuck, and in the process of setting it loose, I applied too much pressure on the extruder and moved it in the z direction ever so slightly. This caused the print to fail, because the next layer was around 50 micron too high.

My question: If I were to add a `G28 W` command (Auto-home without mesh bed leveling) will this recalibrate the Z height and solve any problems I had? (I already know that I need to be responsible for the `G28 W` movement to not cause any part of the printer to crash into my prints, I'm doing small prints far from the home area so this wouldn't be a problem.)


Thanks for your help,
Ram Rachum.

LaPointe
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Re: Will `G28 W` mid-print solve Z disorientation?

Oct 14, 2018 8:24 am

Hi,

This may be possible since the auto home will reset the axis position. But after it, you will need to add the proper g-code to go back to the current layer height.
You can try it, you don't risk much except ruining your print.

coolRR
Posts: 41
Joined: Apr 09, 2017 11:06 am
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Re: Will `G28 W` mid-print solve Z disorientation?

Oct 15, 2018 4:47 am

Thanks LaPointe! I'll give it a try.

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