linearBearing

thingiverse

Size adjustable linear bearing crafted in Freecad. Inner and outer diameter specifications are critical. Six precision holes dynamically adjust the radius according to need. Currently, parameterization poses a challenge, but as skills improve, so will the quality of the Freecad file. Upon testing with PLA, an average shrinkage of 0.2mm across the overall diameter was observed, necessitating consideration in design. Accounting for shrinkage reveals a typical freeplay of about 0.05mm within the radius is feasible. Initial layer and subsequent layers exhibit slight compression; simply force-fit the part onto the slide material. Once seated, gentle movement will gradually sand the part to precise accuracy (hot water from a kettle can facilitate this process). By using standard hollow aluminum tubes or steel alternatives, time-consuming visits to linear bearing stores with often inadequate customer service can be avoided.