-
Trimming off the blobs made it slightly more presentable
-
The cork conceals the evidence
-
Align the two pieces of cardboard by eye to match their inner shapes
-
Then OpenSCAD generates all the other features in the solid model
-
While all of that to-ing and fro-ing works
-
Which requires more fussing than I’m willing to apply on a regular basis
-
Avoid the temptation to just press a fragment into its ill-fitting recess







