Thule Zipper

I owned Thule backpack for almost 10 years or so. It is by far my favorite and durable one. After some time my zippers started to break which is shame, because I absolutely love how they feel and look. I could not find them anywhere so I purchased small roll of TPU and got designing.DESIGNIt is heavily inspired as you can see, just optimized for 3D printing. Originally I wanted to utilize the metal part for durability, however it is not ideal and was worried about how well it would hold with ove