Most “bad STL” tickets are a dirty bed
I keep getting the same message: “this file doesn’t print.”
Nine times out of ten the file is fine. The bed has fingerprint oil, the first layer is 5°C too cold, and Z-offset was copied from a YouTube short for a different plate.
Do this before you reprint anything:
Wash the plate with dish soap. Dry it. No IPA as the only clean.
Print a 5-square first-layer test at your usual temp.
Write down the offset that actually works on YOUR machine.
If the printer itself is the problem — won’t home, clogs every 20 minutes, layer shifts — that is a machine issue, not a file issue. Treat it that way.
Ironwood files assume that baseline. Get the bed right once and most “broken STLs” disappear.