K40 Laser bed with steel plate

thingiverse

I decided to create a custom motorized bed for my laser after researching various options and realizing that I could make something even better on my own. The design was inspired by several existing projects, including a few from Thingiverse and YouTube tutorials. The corners of the bed are currently in their fifth revision, and while there's still room for improvement, this is as good as it gets for now. The idea behind the design is to use two bearings and a collar in each corner to preload the bearing and minimize wobble. To achieve this, I pushed the bearing into the top cap until it stuck out just slightly. I used a G-clamp to insert the tight-fitting bearings, which required some extra effort but paid off in the end. Please note that the sizes listed below are specific to my machine, so be sure to verify yours before cutting any materials. Here's what you'll need: * Alu tubing lengths: 2x 200mm and 2x 300mm for the sides * 12ga steel sheet cut to 350mm x 250mm You can find the necessary materials on online retailers like Amazon and Banggood. Here are some affiliate links to help you get started: Amazon: * Belt 1220mm - 2GT 610 Teeth (7.99 USD) * 608 bearings (8x) (9.14 USD) * 100mm lead screws with nuts (4x) (4.79 USD) * GT2 pulley (3mm inside) (2x) (8.98 USD) * Nema 17 stepper (34mm height) (11.69 USD) * 20t GT2 pulley (5mm bore) (1x) (7.84 USD) * Magnets (5mm x2mm) (6.99 USD) * Collar (8mm) (9.98 USD) * Spikes (6.95 USD) Banggood: * Belt 1220mm - 2GT 610 Teeth (4.38 USD) * 608 bearings (8x) (7.02 USD) * 100mm lead screws with nuts (4x) (11.96 USD) * GT2 pulley (3mm inside) (2x) (3.38 USD) * Nema 17 stepper (34mm height) (10.95 USD) * 20t GT2 pulley (5mm bore) (1x) (1.55 USD) * Magnets (5mm x2mm) (3.99 USD) * Collar (8mm) (6.76 USD) * Spikes (5.49 USD) Please note that these prices do not include shipping costs.