Dual Z lock for the CR10-500

prusaprinters

<p>Dual Z lock for the CR10-500</p> <p>I have had some issues with the two sides getting out of alignment so I looked at the possibilities and one GT2 1220mm closed belt and two 50 teeth GT2 pulleys fit perfectly.</p> <p>They fit well under my frame braces and It should work with most frame braces. <a href="https://www.thingiverse.com/thing:2898173">https://www.thingiverse.com/thing:2898173</a></p> <p>You lose about 20 mm in Z travel. It can be reduced to around 10 mm if you flip the pulleys but I wanted them as close to the top bearings as possible.</p> <p>When you mount them make sure that you align your bed to be the same height above the frame on both sides and only then rotate each Z axis so the X axis is parallel with the bed.</p> <p>I made a small bed level piece that you can print and use to help align the bed.</p> <p>The 50 teeth pulleys are a bit hard to find compared to 40 and 60 but I found them on aliexpress.</p> <p>Make sure they are 8 mm bore. <a href="https://www.aliexpress.com/item/GT2-Timing-pulley-50-Teeth-8mm-Bore-for-6mm-Width-Belt-2pcs-lot/32660628656.html?spm=a2g0s.9042311.0.0.39674c4dKLGvVG">https://www.aliexpress.com/item/GT2-Timing-pulley-50-Teeth-8mm-Bore-for-6mm-Width-Belt-2pcs-lot/32660628656.html?spm=a2g0s.9042311.0.0.39674c4dKLGvVG</a></p> <p>It should be possible to do the same for the S4 and S3 with 976mm and 28T and 760mm and 20T but I haven't confirmed those numbers.</p> Category: 3D Printer Parts