A friend of mine is a therapist who works with children. She uses a toy prison in her therapy sessions for putting away bad things or something (don't ask, I don't know). Anyway, the toy prisons she has used got broken very easily (by accident or on purpose). So I have designed a tough TPU prison which can withstand rather some abuse..
The prison is made from 8 printed parts:
1 floor part
1 roof part
3 wall parts
1 wall part with door opening
1 door
1 hinge
Furthermore the model needs 13 pieces 15cm TPU filament for connecting the parts
Parts fit together with the ‘teeth’. Put the TPU filament strings through the holes in the teeth to keep the parts together. Start with putting the door in the wall part with door opening.
Depending on how you put the part with the door opening, the door opens to the left or the right, it's up to you.
I've printed this model with 0.6mm nozzle and a staggering 100% infill creating a massive 560 gram prison.
The door and the wall part with door opening have openings for the hinge. Since TPU is very sticky material, I've decided NOT to use supports. Instead I've created a pause in the printing job just before the the bridging starts. That moment I've placed strips of folded aluminium foil (same thickness of the opening) where the hinge will be placed when everything will be assembled. Now the aluminium foil (add glue with glue stick to the aluminium foil) will be the support. After the print job is completely finished, just remove the aluminium foil strips.
My friend has used a slightly smaller model to test with her ‘most destructive’ little client. The smaller model passed the test with ease. Also I challenged my 16 year daughter to destroy a wall part without tools. After several hours of abusing (pulling, crushing, bending, twisting) the poor wall part she did manage to do some damage to one corner after twisting as hard as she could but wasn't able to destroy the part. Anything can be broken but this prison made from TPU doesn't get damaged just by accident so mission accomplished.
Needless to say: you can of course change material, change infill, change nozzle size, etc. Happy printing (if you're interested in my model)
The author marked this model as their own original creation.