$25.00Radial Engine, Rotary-2, 1910s

myminifactory

This model is a model of an aviation piston engine used in aircraft in the 1910s, more than 100 years ago.While the material and processing technology has not been developed, it has the structure that has been conceived with wisdom.This is the 2nd model of Rotary Engine and this model has the following features.These features could be seen in engines manufactured by "Le Rhone" (France).① Rotating Cylinder (for cooling purpose) and Cases (mostly made of steel and machined)② Slipper Type Connecting Rods③ Valve arrangement - Intake and Exhaust valve: Mounted on the top of the Cylinder by One Push/Pull Rod to open/close④ Ring Cam and Seesaw type Cam Follower with Internal Gear Type Reduction Mechanism - The cam contour has been simplified here. Therefore, the valve timing is not accurate.⑤ Intake Pipe connected to each Cylinder⑥ Carburetor connected to the inside of the crankcas⑦ Gear unit for driving High-pressure Magnetic Generator (Magneto), Lubricating Oil Pump⑧ Ignition Distributor, Cable, Spark plug⑨ Wooden Propeller (dummy) Add the hand-turn knob (tool) (Magneto, Oil pump)In addition, the device that rotates with a 6V battery motor can be added. (See video)[Note] : If you installed motor, turn knobs can not be used because the rotating drag of motor reduction gears is too big.It is a rotation model, but the inside can be partially observed. [Video]https://youtu.be/TF52CC6iyHA B. Assembly Manual (PDF format, total 33 pages)The detail assembly manual including "Parts-List", "After printing treatment" and "Assembly procedure" are prepared based on "Standard Skill (Filing, Drilling, Tapping and painting)". C. Purchase Parts Information; - Bearings- 689ZZ(1), 6900ZZ(x2), 6803ZZ(x1), 6804ZZ(x1) - Aluminum Tubes φ3, 6, 12 - See Parts List - Screws Micro screws M1.4x3.5L & M1.4x6L - Direct screw-in to 1 mm dia hole (No nut) But if you have the M1.4 Tap, it will be very useful. Screws M2 x ** -, M3 x ** - See Parts List D. STL file Total STL files are 68 items including the stand and tools. “ws” of last 2 digits of file name means “With Support” special designed. E. Total Net Print Time: Approx. 100 HR - (Estimated as case of PLA, 0.4mm Nozzle, 0.2mm Layer Height, 40% infill and No raft and support) Note: When at actual print, each parameter may be adjusted by your experience. F. Printing settings Raft, Support, Layer Height, Infill: Depending on your experience. My models were printed by "idbox" using with 0.4 nozzle, 1.75 PLA. I do hope your success!!