Oscillating Cylinder Motor for LEGO
Description
You can see it in action [here on Youtube](https://youtu.be/-a7MpJx4nnI). Work animation in 3d viewer (Sketchfab): https://skfb.ly/6ZxOs Can be printed with 0.6 (or smaller) nozzle, at 0.2 layer height. Takes about 7 hours (and 14m of filament) to print at 20mm/s. <p>Way more leaky than the [Radial Motor](https://www.thingiverse.com/thing:4197583) , but looks a bit cooler, with all the moving parts exposed. Runs for about 15 seconds on a double wall balloon (one balloon inserted into another). Can run on a single balloon as well, just needs a lip from the 2nd balloon for the sealing.</p> <h2>Extra parts needed:</h2> + Nitrile or PET glove fingers for the membranes + Bolts: M3x6 *x9*, M3x8(or 10) *x2*, m3x14 *x2*, m3x10(or longer) *x2*, m3x26 *x1* + M3 nuts *x4* + Two air balloons <h2>Assembly:</h2> Will add an assembly video a bit later, for now you can use this demo in 3d viewer as a guide https://skfb.ly/6ZxOs: - Cut a finger tip off a glove - Put in onto a *4_3_Cylinder_Ring* part - Insert the *4_1_Piston* into the *2_1_Cylinder_L_Front*, it should move freely - Put the *4_2_Piston_Washer* onto the piston end - Put the 2nd washer, so the glove finger tip would be fixed between the washers - Insert the Cylinder Ring into the Cylinder, remove the slack from the glove finger - Attach the *2_2_Cylinder_L_Back* with 3 M3x6 bolts - File down the flat part (with intake holes) of the assembled cylinder to remove the seam and layer lines - File down a little bit the flat parts (with air holes) of the *1_1_Base* - Insert the *1_3_Axle_Pin* into the *1_1_Base* - Use the model in 3d viewer as a guide for the remaining parts - After the assembly, press the cylinders towards the base with the bolts at the sides - there shouldn't be too much friction between the cylinder and the base - You may use some lube on the piston and the other rubbing parts "Z_Plate_ALL_PARTS.stl", as the name suggests, contains all the parts on one plate. Parts with **X_** in their names are optional - you may assemble one-cylinder motor using the *X_3_1_OneCylinder_Lid* part, or a motor with single-acting cylinders using *..._HalfCylinder* parts. The second one works quite poorly even on 2-walled balloon, but runs for almost 30 seconds and makes a cooler sound.
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