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PL1:

--- Quote from: lilshawn on November 06, 2023, 02:32:53 pm ---does this look like it's just under-extruding? or something else?

--- End quote ---
Hard to tell on a print like that. Could be the extrusion rate. Could be the slicer trying to deal with the varying widths/angles of the model. Could be the angle. Could be the nozzle size is too large/small. :dunno

Try printing one of these with the settings mentioned in the "Thing Details" tab.
https://www.thingiverse.com/thing:3695183

There are also a number of temperature/bridging/stringing test prints on Thingiverse so you can find if that 200 degree setting + extrusion rate + retraction setting is ideal for your printer/filament or not. (not sure which print to recommend)

Scott

lilshawn:
i tried a couple different flow tests and it seems to be set properly (IE the best looking one is the 100% setting my printer currently has as default)

normal flat areas with the diagonal fill look fine with this filament... could just be how the printer/slicer is doing the last layer in this particular item since they are thin?
maybe applying a perimeters overlap might help...

so much learning curve to this 3d printing. :o

PL1:

--- Quote from: lilshawn on November 06, 2023, 07:52:06 pm ---i tried a couple different flow tests and it seems to be set properly (IE the best looking one is the 100% setting my printer currently has as default)

--- End quote ---
OK. That eliminates that variable. ;D

--- Quote from: lilshawn on November 06, 2023, 07:52:06 pm ---normal flat areas with the diagonal fill look fine with this filament... could just be how the printer/slicer is doing the last layer in this particular item since they are thin?

--- End quote ---
Is this an .STL that you downloaded from somewhere or are you generating the .STL from a font or .PNG using a program like OpenSCAD?

Does Meshmixer report any errors/flaws in the .STL?

Do you see the gaps in the slicer's layers/path preview or are they nice and even like the diagonal green lines in this pic?

You could also try slightly scaling the overall size of the print up/down, if size isn't a critical parameter.
- It looks like the slicer doesn't have enough room to fit another vertical pass into the vertical strokes of the "P" and "E".
- If you're using a 0.4mm nozzle and the width on those vertical strokes is aroud 2.6mm, there's more than enough room for 6 passes (2.4mm), but not enough for 7 passes. (2.8mm)
- If you up-scale the print by ~7.7% (2.8/2.6), you add half a nozzle-width to those vertical strokes which might make enough room for a seventh pass.
- If you down-scale the print by ~7.7% (2.4/2.6), you remove half a nozzle-width from those vertical strokes which might take away the excess room between the six passes.

If size is a critical parameter, you could try slightly repositioning or slightly rotating the model along the Z-axis and reslicing.

Of course, you could also try some spray paint after using either high-build primer or print smoothing epoxy to fill in the gaps on the print.

Scott

lilshawn:

--- Quote from: PL1 on November 06, 2023, 11:39:06 pm ---- It looks like the slicer doesn't have enough room to fit another vertical pass into the vertical strokes of the "P" and "E".

--- End quote ---

I have a feeling you are right on this one. The slicer probably just couldn't fit another pass in the space given and just filled it the best it could.

Size and font isn't a real concern here... There is a bunch of parents chipping in stuff and putting together some swag bags for the cheer team my daughter is on. They have a big competition coming up, so I figured I'd make some tags with the cheer gym logo and their team name on them. so really, it could be any size.

I just threw it together in Tinkercad just randomly picking sizes figuring this and that was about right size... exported the STL and sliced it in Cura, hit print, and didn't think much of it.

I'll take a look at the sliced preview in Cura later today and see if I see a gap like you mentioned. I hadn't really considered a line width multiplier being an issue I'd have to look out for, but in a smallish area, I guess it would be... but I'll first just size it up a little bit like you say and see how it looks.

Thanks for the insight!
I'll let ya know how it turns out :cheers:

PL1:

--- Quote from: lilshawn on November 07, 2023, 11:49:52 am ---I hadn't really considered a line width multiplier being an issue I'd have to look out for, but in a smallish area, I guess it would be...
--- End quote ---
I ran into that and another somewhat-related problem with the Ikari Warriors themed dust washer.

In this Cura layers view you can see the gaps in the numbers and missing lines compared to the regular view.
- Tried fine line widths of 0.41 and 0.45 with a 0.4 nozzle, but the slicer dropped some of the lines.
- Had to bump the fine line width up to 0.6 to get them all to slice/print reliably.

I used a Sharpie to make the lines and numbers stand out, and soaked the inside of the gaps to "fix" them on later prints. :lol

Scott

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