3D Printing GT2 Timing Belt, Zeelo 10 Meters (32.8ft) GT2 Open Timing Belt 2mm Pitch 6mm Width Rubber Fiberglass Fit for RepRap Prusa Mendel Rostock CR-10 Ender 3 3D Printers - Black

used this to replace belts on laser engraver, just cut to desired length.

I have a BobsCNC E4 and the belt broke. Found this one and it fit perfectly. Much better deal than going through BobsCNC for a replacement part

These belts failed almost immediately. There is probably less than 24h of print time on these belts. I noticed the belt tension was low, and while upgrading an unrelated part, I noticed this stretching.

Belt failed inside a 50c chamber for only 300+ hours, a good quality belt should last 10x longer

At first look this seemed pretty good and had the expected dimensions. However, it did not last very long before it stretched and thus caused my prints to be quite inaccurate in the axis that is driven by this belt. I dont want to replace my belt every few months so I will be looking for a better replacement. The original belt on my printer lasted MUCH longer before it finally broke, and never stretched like this one.

I have several 3D printers of different brands and models printing 24/7. I 3D print free ICUshieldMN face shields. These belts are great. They fit all the different printers I have and hold up great as any belt I have used. In my picture you can see what a normal belt (left) and a stretched out used belt (right) looks like after 5 months of 24/7 use.

works good for me

Used on my CNC machine. For the price I got 4x as much belt rather than going through the CNC manufacturer.