I am having problems with surface finish on my Qidi XC-Pro. there is a raised extrusion where one part of the infill is extruded and overlaps as it meets the previous part infill.
Qidi support suggests Prusa slicer might work better than their own.
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I am having problems with surface finish on my Qidi XC-Pro. there is a raised extrusion where one part of the infill is extruded and overlaps as it meets the previous part infill.
Qidi support suggests Prusa slicer might work better than their own.
weird, is it thomas ?
prusa slicer can't hurt.
surprised you don't have simplify3d.
Definitely not something I've ever had.
Not something I've ever seen before either.
hmm, have you checked the design file ?
It genuinely looks like two faces, an outline and a cutout.
Particularly seeing how offset it is from the cutout and how universal.
Even if it was embedded level with the surface of the model, and effectively invisible in the design program, it could still show up like that.
It's a flat print extruded to 3mm thick.
The problem is that each layer gets infilled up to where the cut out is, then some of it has the infill started wherever it can extrude an uninterupted line. After that it fills in between wherever it left off.
It doesn't just fill in up to the cut out, do a 'Z' hop over it and start on the other side, if that helps to explain what's happening.
The layers are put down in a diagonal pattern and the next layer is put down at 90 degrees to the previous layer.
how many outlines are you using ?
Not really sure what you mean by outlines.Quote:
Originally Posted by curious aardvark
It's just a rectangle wiith a smiley type face on it drawn in Fusion 360 and then just extruded up 3mm where it is solid, this leaves the face parts open with no extrusion in them and daylight shows through them.
It's for placing vertically on a fence to stop cats walking on it up to the bird table.
It's just sliced laying flat with ' Lines ' set as the infill skin patern top and bottom.
print settings usually consist of outlines, top and bottom layers and infill.
I usually use 3 outlines, 3 top and 3 bottom layers.
But for somethings a single outline works better.
You can also go with no outlines and have everything infill.
this print has 3 outlines.
Attachment 17547
The slicer considers anything bordering a void to be an edge, so uses outlines.
It could well be the putlines that are causing your ghosting.
If you try it with 1 or 0 outlines, could fix the issue.
All I can think of, either that or something to do with the extrusion process.
I think that outlines are called walls in the slicers that I've used, not that what trhey are called matters anyway.
From memory I think that it could have been four walls, I just used the Qidi settingsfor ABS apart from a lower bed temp and a higher extruder temp of five degrees in each case.
How was the file made? Its funny cause where those lines are in the print reminds me of when you do a boolean operation for subtracting one part from another(resulting in the 3d modeler/cad software to add extra polygons in that area). Interesting problem tho.
It was just drawn in Fusion 360, it's approx 100mm by 140mm.
Just a rectangle with the face drawn on it then extruded up 3mm and exported as an .obj file.
Qidi had similar results using Prusa slicer, no solution as yet and I doubt there will be. In the unlikely event I print that particular file again I'll probably go for concentric pattern rather than lines.
Have you tried exporting to an stl? or just the obj?
Check this out.
Attachment 17579
See the extra lines connecting the two circles.
Attachment 17581
Sorry for the bad drawing in paint but I felt like that was the best was to get my point across.
Sorry, but I'm not sure what you are trying to show or how this will help correct the issue.
You mention a slicer setting, I would appreciate knowing what that would be ?
Could you explain how ' boolean operations ' are causing the issue?
It is not very likely I'll be printing that particular file again, but the knowledge of how to preven it would be handy.
sorry about my half baked explanation, the idea is that there are polygons/triangle bunched up in that spot(along the red line) and then the slicer fails to actually handle it, I believe it's the resolution setting. Id try increasing it gradually.
Attachment 17582
Just wondering which slicer you show in your post ?
Perhaps you can explain the triangles, it's just a flat plane interrupted by some holes, not a curved surface where I would expect some triangles in the mesh
I'm using pursa slicer, newest version. As for the triangles, they make up the mesh and it doesn't have to be a curved surface, triangles are created by vertices(points) connected by edges to create the faces aka triangles. So when creating your model in a program like fusion, it'll work with polygons(or what ever they're using) and export to a simpler format for a slicer to read(hence gcode a coordinate system with location information about said vertices and with additional variables like feed, laser, extruder, etc ).Quote:
Originally Posted by Bikeracer2020
So what am I getting at? Sometimes when doing a boolean operation it can lead to the faces being bunched up in or around an not keeping a even topography. So like if I open that same part in let's say... Meshmixer...
https://3dprintperfection.com/wp-con...er-display.png
So this is a flat plane thats been extruded a few mm, and if I open this in my slicer, it'll show a flat plane(with the holes in it) but the distortion from the triangles isnt visible. in meshmixer it is because it doesnt automatically try to smooth those triangles, and sometimes this can replicate itself in gcode(in this case an extra extrusion across the top.).
I've started using Prusa Slicer and it is a slicer setting, so nothing to do with boolean operations or polygons in the STL mesh, latest test print has removed all the ridges in the top surface finish by using a Monotonic fill setting.
The cause of the ridges was because the extruder moved left to right, stopped and printed in a different area and then resumed by coming back going right to left until it reached where it had stopped previously.
The Monotonic setting makes the extruder always move in the same direction, so it always restarts extruding where it left off.