I wanted to make a silicon gasket for my AllSkyCam dome, rather than silicon around the dome each time I wanted to remove/replace/clean it.
With a bit of 3d-printing, I made a mould (or mold if you're american) and cured some silicon in it. Worked pretty nicely. Won't know how it performs in the real world for a while until the next time I pull apart the AllSkyCam though.
My 3D Printer only has a bed size of 14x14x14cm, so I had to split the parts in quarters to lay it out of the bed. I could only print 2 quarters at a time.
My GitHub Repo for my 3D Printed parts:
https://github.com/RobertPascale-Astr...
The STL file for my gasket on Thingiverse: https://www.thingiverse.com/thing:440...
Gasket Customiser: https://www.thingiverse.com/thing:65470
O-Ring Customiser: https://www.thingiverse.com/thing:225603