Website: thingiverse
Author: az3dr
Price: Free Download
File format: .Stl 3d printable
Description:
My take on this problem. And a good exercise in designing threads.Why buy travel-sized toothpaste at 10x the cost of a large tube when you can just refill the travel tube??Just screw the big and small tubes together using this part and squeeze the big tube. After the refill, I blow the toothpaste remaining in the coupler