WINSINN Aluminum Synchronous Timing Printer Power Transmission Products Review

I used them to modify my CR-10s 3D printer to match the Z-axis to synchronize leadscrews. I attached them to the top of the machine and connected them with a belt and tensioner (3D printed). Works perfectly! To connect the pulleys I used a 760-2GT-6 belt.

Having assembled a number of 3D printers and now my CNC, I know what a good pulley is. It's not like this. It feels like cheap molded plastic painted silver to make it look like aluminum. It works. Its durability remains to be seen. Unfortunately this size is hard to find as they are not common. I'll have to look elsewhere for better ones and hope they last until then.

They worked great and appear to be of good quality. The only problem I had was that one of the socket head screws was not seated properly so the hex wrench would not work. I had to take my time unscrewing it with twisting pressure, but it eventually came out. Once I reversed the screw I was able to use an allen wrench and all was good. I'm assuming they use a machine or magnetic tool to insert the bolts since the allen wrench can't go in backwards like it used to.