Laser Rear Drive

thingiverse

This is a rear drive mechanism for a laser engraver. Nicky Norton (Norton White Tile inventor), Marco Wong (Lightobject), and JB (bbjb143@gmail.com) were working on a similar idea at the same time (early 2020). These files were designed and proven out by JB, he and provided the files me to share the "Thing". This is shown on Ortur Laser Master 2, but the idea can be extended to any laser engraver One of the key mechanical problems with a laser engraver is trying to keep both Y rails perfectly parallel so that no artifacts occur. Unlike 3D printers the laser dot size ranges from 0.010mm to 0.08mm requires much higher precision of the machine. Dual motors with mechanically coupled motors adds cost and complexity. A single motor with a shaft controlling a pully on the opposing side (as with the stock Ortur Laser Master Machines LM1, LM2, LM2 Pro) never is perfectly parallel. This ensures balanced loading and torsion of the shaft. Bill of materials will come later. Thank you JB for sharing! If you have any questions feel free to email JB with the email above. Parts list Stepper motor (can reuse Ortur 1.8deg stock nema 17 motor) 16t or 20t GT2 6mm pulley 5mm bore mounted on motor 4x 16t or 20t GT2 6mm pulley 5mm bore for Y axes Optional 2x 6mm idler pulley 100t (200mm total length) GT2 6mm closed loop belt M5 hardware with drop in t-nuts for mounting on v-slot 48t GT2 6mm pulley 5mm bore for Rear reduction **** Reduction reduces torque and will limit speed, 16t to 16t works good as well for quality and better for faster speeds. ?t GT2 6mm pulley 5mm bore for X motor reduction If you want other upgrades to your laser machine or details on this conversion visit laserupgrades.com.