First layer problem - can I fixe this in the slicer?
I created an object in Fusion 360 that is composed of three objects that were joined into a single object and are all aligned on the same plane. I exported it as a 3mf file and pulled it into the slicer. The screenshot below is of the bottom of the object. The solid infill adhered just fine. The blue is a "bridge infill" and only started being printed on a later layer.
During printing, the corner represented in the bottom right of the image pulled loose and warped, ruining the print (I had to cancel the print).
I'm fixing it by adding a thin single layer to the object in fusion 360 and exporting again. But here's my question - Why would a flat surface like this would get split, by the slicer, such that it wouldn't put solid infill all over the bottom layer? The slanted line doesn't line up with any geometry in the object. Also - would it be possible, in the slicer, to fill in the bottom layer with solid infill? I think that would have fixed the problem.
Best Answer by fuchsr:
It's probably not correctly aligned in fusion but has a tiny angle difference. If you want to post the f3d file (zipped) I'd be happy to validate the model. In the slicer the easiest is probably to cut a tiny slice from the bottom with the cut function.
RE: First layer problem - can I fixe this in the slicer?
It's probably not correctly aligned in fusion but has a tiny angle difference. If you want to post the f3d file (zipped) I'd be happy to validate the model. In the slicer the easiest is probably to cut a tiny slice from the bottom with the cut function.
RE: First layer problem - can I fixe this in the slicer?
Thanks for the advice and the offer to look at the file. I went back into fusion. I modified the timeline to use the align operation on each of the constituent bodies before joining them. Now in the slicer, the whole bottom is "solid infill" except for a small patch where I didn't expect it to be. I attached a screenshot below for reference. The letters are also gone, but they weren't a factor before (I tried).
It is interesting because the series of operations should have put them all on the same level, but actually using the align function was necessary. I think there must have been some rounding error somewhere in the underlying algorithms that was leading to the problem I had before.
Thanks for the help.
