Replacement lace lock for Salomon shoes and others with cord locks

thingiverse

One of the lace locks on my shoe snapped, so I decided to investigate whether I could 3D print a replacement lace lock. The shoe brand is Salomon and the model is Evasion Cabrio Sandal; the diameter of the cord lace is 1.75mm. I discovered a larger paracord lace lock from alexflin that I was able to shrink down. To make locking and unlocking easier, I added a pull tab to the top. According to alexflin's suggestion, print the lock body standing upright. Printing at 0.15mm with support and an infill of 20% or more should work well. It's a tight fit, so I had to sand the print lines smooth on the inner lock. I found it easier to insert the strings first and then the inner lock instead of trying to feed them in through the sides after clipping it together.