H1 Idler upgrade

thingiverse

To enhance the SeemeCnc H1 printer, swap out idlers for ball bearings using cheap, readily available skateboard bearings (608 size) with measurements of 22mm OD, 8mm ID, and 7mm height. Ensure that the part prints just as perimeters/shells instead of infill for optimal results. If your printer has backlash issues, drill a 5mm hole through the printed part post-printing. Print multiple at once to allow layers to cool properly. Assemble in this order: cap screw, SAE washer, 1/4"ID x 1-1/16"OD x 1/16"Thick Plastic Washer, another SAE washer, idler sleeve with skateboard bearing, yet another SAE washer, the same plastic washer, z-axis plate, and finally an 10-32 nylon lock nut.