
Too tight.
Rather hard to insert.
Impossible to remove by traction. Even pushing from behind require a specific tool.

Printed very fast, very nice support for benchy. Kida loose but i think its because i printed the insert empty with 3 walls instead of 4.

Super cool idea!
I wounder if it's just me but I already broke two chimneys...
Also super useful as filament-sample-display



@Florian_1313929 Oh no, the chimney should not break by that ^^‘ on your second image it seems that they are stuck to the hook, but they should easily slide in and out of the hook and only holding by the gravity. What nozzle and layer height did you use?
@byWulf
I used a 0.4 Nozle and 0.3 Layers.
They aren't stuck so that's no problem at all ;D
Thank's for your reply!