Jet Engine Model Motor Drive

prusaprinters

This is a motor drive for the GE "Build Your Own Jet Engine". It replaces the hand crank of the original. I designed this to use a motor, switch and battery holder available from any RadioShack store. The gearbox is a 243:1 speed reduction based on the design from "mirk", but shrunk to 50%. The drive chain and drive gears are based on the design by "peanut", only shrunk in width. I also had to re-draw both of these as Slic3r was messing up on the edited versions I originally tried. Build Instruction Videos: Instructions Please watch the videos for the full build instructions 8/14 Updated box to a fixed (manifold) version 8/20 Updated stand to new version that should eliminate possible slicing issues Print the GE Build Your Own Jet Engine and assemble it, but DO NOT put on the hand crank, or attach the original stand. Print one of each part, apart from the "jet_enginedrive-_gear__print4" for which you'll need four (the clue is in the file name!). The "jet_enginedrive-_modified_basev2" REPLACES the "14-_stand" of the original model. The "jet_enginedrive-_engine_drivegear" glues on to the "9-_rear_cone" of the original, in place of the hand crank. Parts List: (1) RadioShack 1.5-3VDC Motor. P/N: 273-223 (http://www.radioshack.com/product/index.jsp?productId=2102822) (1) RadioShack AA Battery Holder. P/N: 270-382 (http://www.radioshack.com/product/index.jsp?productId=2062238) (1) RadioShack Momentary Pushbutton Switch. P/N: 275-618 (http://www.radioshack.com/product/index.jsp?productId=2062501) (1) RadioShack 9V Battery Snap Connectors. P/N: 270-324 (http://www.radioshack.com/product/index.jsp?productId=2062218) (2) Socket Head Cap Screw, M3 Thread, 30MM Length, 0.5MM Pitch (McMaster-Carr: http://www.mcmaster.com/#91292a022/=t9awk6) (2) Hex Nut, Class 6, M3 Size, 0.5MM Pitch (McMaster-Carr: http://www.mcmaster.com/#90592a009/=t9awr8) (2) Socket Head Cap Screw, M3 Thread, 8mm Length (http://www.mcmaster.com/#socket-head-cap-screws/=t9rwlu) (3) Pan Head Phillips Machine Screws, 6-32, 1/2" Length (http://www.mcmaster.com/#90272a148/=t9s334) - Sorry for mixing metric and imperial screws, but I had these on hand. M3/M3.5 x 12mm with the corresponding hex nuts should be fine (3) Hex Nut, 6-32 Thread Size, 5/16" Width, 7/64" Height (http://www.mcmaster.com/#90480a007/=t9s2be) - Or a M3.5/M3 equivalent Category: Mechanical Toys