- Install OpenSCAD
- Get the latest version of the dogtag and qr code from https://github.com/X-Illuminati/glyphinator
- Find dogtag.scad in the example-projects/dogtag/ directory and open it in OpenSCAD.
- Provide customized values for the variables in the "Modify these parameters" section. See the usage notes at the top of the file for hints.
- Set mark_space_select=0 before rendering and exporting the STL.
- After printing, fill in the holes with a dark epoxy or similar material.
Dualstruders / Multimaterial:
I have no idea if this will actually print in a combined form. May need to scale up feature size to get reasonable performance. I suspect the result will still include a wipe tower that is 3 times the size of the actual model.
Create one model with mark_space_select=0 and a second model with mark_space_select=1 and combine them in your slicer software.
Set mark_space_select=0 before rendering and exporting the STL.
Print in opaque, white filament.
Layer height defaults to .2 mm but is adjustable. Set layer_height and impression_depth as appropriate.
Most quick response code scanners require black marks on a white background.
Other colors besides black can be used as long as they are dark enough to offer sufficient contrast.
A good method is to print out only the base form of the dogtag (mark_space_select=0) in white and then add the black parts afterwards.
- Mix up some 5-minute epoxy with a few drops of black ink.
- Spread the epoxy over the surface of the quick response code.
- Ensure that it is mashed into all of the crevices. Air bubbles are the enemy.
- Let cure for 24 hours.
- Sand down the surface until the white plastic shows through again. Some parts may not be completely level, so you might have to scrape the epoxy away with a knife.