laser cut CNC linear axis
thingiverse
A low-cost linear axis mechanism for an open source selective laser sintering 3D printer is designed with minimal components. The design features long pieces of Kapton tape as a slide bushing to reduce friction and drag, while only requiring a few bolts, washers, and nuts. This system serves as a follow-up to the recent release of the selective laser sintering alpha one dual Z tables. It was prototyped with 3mm material, and the bolt holes fit snugly around 6-32 bolts. The top plate measures 95mm wide by 102mm high. Steppers KP35FM2-035, with a NEMA-14 footprint and 5mm shaft diameter, can be used at $5 each from Sayal Electronics. All bolt holes are sized for 6-32 bolts, which may need to be tapped into softer materials like hardboard. Gear hub holes have a 4mm diameter to allow play for gears. Washers were added between structural plates and under each gear to reduce friction. Two SVG files with laser-cut parts layout are provided.
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