Aah! That was it, Shrdlu. Model in inches, export STL in mm, import in mm, and the model in the slicer is perfectly sized. Thanks!

I model in inches and export in model units. I tried exporting in inches but doing so didn’t solve the problem. As far as I can tell, my slicer assumes all imports are in mm (I’ve sent a question about this to tech support but haven’t heard back).

@box said:

The export dialog has a button 'Options' which allows you to change the output.
This even lets you model in meters and export in mm, thus avoiding any tiny face issues.

I had been exporting in Model Units. I switched it to Inches but, unfortunately, it didn't solve the problem. Thanks for the pointer, though.

@box said:

You could just adjust the stl export settings to work with your printer.

How would I do that within SU? Especially since the STL format doesn't include dimension units.

Someone over on reddit pointed me to 3D Builder which is built into Windows and defaults to 3MF. I can just open my STL and then Save As and I'm done. Problem solved.

I'm on Sketchup Pro 2021 (Windows 10). I don't know what 3D printing formats later versions support, but the best mine can do is STL. It works, but without dimensions I always have to scale my model after importing into my slicer (Lychee). This isn't necessary with 3MF since that format contains dimension units. Can anyone recommend an STL-to-3MF converter? I've looked at a couple online and one didn't work and the other didn't use the right units (in fact, it didn't even ask me for any). Figured I'd ask the experts. Thanks for any tips.

Aah, perfect. Thanks.

I'd like to unfold a model so I can cut it out and tape it together to make a physical version. I've found tutorials for the "Flattery" and "Unwrap and Flatten Faces" extensions, but the former isn't available in the Extensions Warehouse, and the latter comes with a warning that it isn't compatible with my OS or Sketchup version (Win10 x64 and v21 Pro). Any suggestions? Thanks.

I'm creating some 3D Text in SU Pro 2018 and it's looking a little rougher than I'd like. Is there a way to increase the number of segments used to form characters? Thanks.

In order to cut something on my laser cutter, I need to make the cut lines .001" wide. If I create the artwork in SketchUp, I export in .dxf, import it into Illustrator, change the line width in there, and export as pdf, which is what I print with. Is there a way to keep the workflow in SU? I assume no, as I don't think there's a way to specify line width in SU, but figured I'd check here. I'm on SU Pro 2018 on Win10. Thanks.