Custom Jam Lid

Your unpopular mixed fruit jam has been waiting for this thing.

Easy to open? Sure.

But now, easy to close.

Customisable for the diameter you require.

I added little bumps inside which help it stay in place nicely (esp. 106mm lid), but you can take them off in the customiser if you don't want them.

Use jamtin_lid_inner_diam_75mm.stl for smaller tins.

Enjoy, and please leave a tip in the jam jar...