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Test tube rack

Test tube rack

thingiverse

This is a test tube rack remixed from https://www.thingiverse.com/thing:4461677 . My daughter got the "Chemielabor C 1000" from Kosmos and we wanted to have a proper rack for the test tubes with 20.6 mm diameter. We additionally bought some cheap test tubes with 16.2 mm diameter. I used the original model for the design idea and dimensions, but drew the rack from scratch in FreeCad (file attached). It's a ~13h print but pretty sturdy. Make sure to print it on its side.

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