Strap adjuster for sewn on strap

thingiverse

My son's backpack adjustment shoulder strap broke. I wanted to use the original project as a replacement, but I don't like the idea of depending on glue for something that will bear a lot of shifting weight. I modified the design to use a second plastic part that allows you to use the strap adjuster with a sewn loop. YOU MUST PRINT THE "BOLT" PART AT 90 - 95% IT'S ORIGINAL SIZE, or it won't fit. Use a screw to secure the other end to keep it all tight.