Linear Bearing Slide for FTC

thingiverse

A cascading linear slide prototype for use in FTC teams and hobbyists. Can be made for under $30 and provides a great platform to learn and test linear slide ideas before implementing them on a competition robot. It is rigged with a bi-directional belt driven slide mechanism, giving control in both extension and retraction, regardless of orientation. --- For rigging help, I made an explanation [here](https://youtu.be/Qyfs6OcRtGQ). --- Lift can be expanded to as many stages as desired. Parts labeled **1x** should be printed once for each stage, and those labeled **2x** printed twice for each stage. The "Full Single Stage" file combines everything needed to create a stage, so can be printed once for each stage you decide to use. I recommend starting with 3 stages, or if you have a particular height the formula for determining number of stages as a function of the displacement you'd like goes as follows (units are in mm, and round up final answer): (total displacement) / (shaft length - 60) + 1 --- For assembly instructions, follow [this Instructable](https://www.instructables.com/3D-Printable-Cascading-Linear-Slide/) that I made. --- This slide does not include mounting options nor motor attachment - it's simply to demonstrate linear slides. A STEP file and Fusion 360 file have been included to create your own. --- There are two pulley options to choose from: bearing bore and screw bore. Bearing bore has a 10mm hole on each side for 10mm OD, 4mm ID bearings. This slightly improves resistance and tolerances, however can be used without. Screw bore has a 4mm bore for an M4 bolt, meaning plastic would be rubbing directly on the screw when rotating, which is find for most uses. Choose whichever you prefer.