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tomnagel

useless movements during printing

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Posted · useless movements during printing

I downloaded a calibration block from Thinverse (http://www.thingiverse.com/thing:5683), and sliced with Cura.

During printing, I see that a few of the thin walls insde the object are messed up by the head, making all kind of useless movements above them. In the gcode view this is visible in the blue lines.

I noticed this also in other prints, especially with thin walls. I notice in the picture, that the useless movements only occur around these walls.

Is there some setting that prevents these movements? Tips, anyone?

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Posted · useless movements during printing

Here the printed result (left). I sliced the same block with Kisslicer (right) and there is no useless movement, and no disturbance in this area.

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Posted · useless movements during printing

It's a side-effect of the "stay inside model during movement" code. Which is causing some problems with thin walls sadly.

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Posted · useless movements during printing

Wouldn't it be possible to filter out these movements?

Thinking out loud: if I would make a program that reads all the gcode, and filters out sections with multiple movements without extrusion, would that be a solution?

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Posted · useless movements during printing

It sounds like the new slicer that Daid and a host of others are working on will address this. ATM, Cura is limited to the capabilities of SkeinForge. I would say take a look at your part and determine which slicer you think is going to do a better job with it right now (Cura or KS) and hope the new one properly addresses the thin wall problem.

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