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Variable extrusion width  

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Angel'sVenom
(@angelsvenom)
Trusted Member
Variable extrusion width

Hello

I would like to know if there is an option for a variable extrusion width based on layer height.

I try to print this in vase mode and the lines on the bottom part are much closer to the ones on the upper part.

I want to print the upper lines in 0.8mm extrusion width and the bottom ones in 0.5mm as it seems in prusaslicer that that number will be ok.

When I print it all in 0.8mm extrusion width I get some fuzziness on the perimeters. You can see it on the attached image.

So the solution would be to have a variable extrusion width but I can't really find it in prusaslicer.

 

 

 

 

 

Postato : 29/10/2022 5:28 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Variable extrusion width

Right click on the object, select height range modifier. Set the range to whatever makes sense for your model. Right click on the range, select Add Settings→Extrusion width. You can have multiple height range modifiers per model.

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Postato : 29/10/2022 8:50 pm
Angel'sVenom
(@angelsvenom)
Trusted Member
Topic starter answered:
RE: Variable extrusion width

Thank you very much.

I feel very dumb. You see, as extrusion width was under advanced, I pressed that and didn't saw it so I thought there wasn't such an option but it is separate from it.

I'm just blind🤦.

Postato : 29/10/2022 8:55 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Variable extrusion width

Happens to the best of us 🙂 

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Postato : 29/10/2022 8:56 pm
Angel'sVenom
(@angelsvenom)
Trusted Member
Topic starter answered:
RE: Variable extrusion width

Ok I did that but now I have another problem.

I get the error shown in the photo which doesn't make any sense.

Postato : 29/10/2022 9:04 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Variable extrusion width

Oh yes, I forgot you mentioned vase mode… ☹️

Not possible with vase mode — to my knowledge. See https://github.com/prusa3d/PrusaSlicer/issues/4230

 

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Postato : 29/10/2022 9:22 pm
Angel'sVenom
(@angelsvenom)
Trusted Member
Topic starter answered:
RE: Variable extrusion width

Yes thank you.

I searched about it and found the issue.

As I see it I could edit the gcode adding the height range modifier myself but I can't seem to find the command for that.

Do you know about it?

Postato : 29/10/2022 9:25 pm
Angel'sVenom
(@angelsvenom)
Trusted Member
Topic starter answered:
RE: Variable extrusion width

So it seems I have to do something like this but it doesn't seem to work. I don't know the syntax of gcode so there should be a mistake in there. Can somebody help me?

Postato : 29/10/2022 10:19 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Variable extrusion width

That's not going to work because by definition in vase mode there are no layers, everything is printed contiguously 

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Postato : 29/10/2022 10:38 pm
Angel'sVenom
(@angelsvenom)
Trusted Member
Topic starter answered:
RE: Variable extrusion width

Ok then, the z position.

How do I write that and where?

The start gcode?

Postato : 29/10/2022 10:48 pm
Angel'sVenom
(@angelsvenom)
Trusted Member
Topic starter answered:
RE: Variable extrusion width

I could do another thing.

If there is a command for setting the extrusion width for a specific kind of line then I could add it at the layer height bar at the preview screen as a custom gcode.

Postato : 29/10/2022 10:53 pm
Angel'sVenom
(@angelsvenom)
Trusted Member
Topic starter answered:
RE: Variable extrusion width

Can anybody help me with this?

Postato : 30/10/2022 3:28 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Variable extrusion width

I don't think what you're trying to do is possible --if you want to print in vase mode. Sure, in normal mode you can use modifiers or add custom code at a layer height. But in vase mode, no, at least to my knowledge. There may be some serious gcode editing that makes it possible but that's beyond what I can offer. 

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Postato : 30/10/2022 4:05 pm
Angel'sVenom
(@angelsvenom)
Trusted Member
Topic starter answered:
RE: Variable extrusion width

Well if there is no command for setting extrusion width then there is a third option.

Height range modifier creates a gcode.

If I take that gcode and copy it to the vase mode one then that could possibly work.

So I want to know what does height range modifier creates exactly and where to put it in the gcode.

Postato : 30/10/2022 4:24 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Variable extrusion width

Maybe some other good soul can help you here but I've had nothing but dismal experiences editing gcode directly. 

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Postato : 30/10/2022 7:04 pm
Angel'sVenom
(@angelsvenom)
Trusted Member
Topic starter answered:
RE: Variable extrusion width

Thank you very much fuchsr.

You were very helpful😊.

If anybody else can help me with this, please do it.

I would be very welcome.

Postato : 30/10/2022 9:22 pm
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