Anet AM8 Dual Z Axis Rim

thingiverse

I was fed up with recalibrating the Z axes, so I connected them with a ribbon and pulleys. You'll have to disconnect one motor! Additional parts needed: 1. A GT2 Loop ribbon that's 810mm long with 405 teeth. 2. Two bearings: 8mm inner diameter, 20mm outer diameter, and 7mm high. 3. Two pulleys: 30-toothed, GT2-style, with an 8mm bore and a 6mm height. 4. A tensioner to keep the ribbon snug in your case - it might not fit perfectly, so be prepared for some adjustments!