Motor drive interface for the Toyota 22RE transmission model

thingiverse

This is a geared interface to drive the Toyota 22RE transmission model with an electric motor. To keep the mechanism mostly within the bell housing, the motor drive gear turns a ring gear which is splined to the model input shaft. Hardware needed: - 4x M2.5 nuts - 4x M2.5 x 5 mm set screws - 3 mm dia. rod (+/- 30mm long) - 1x R2ZZ bearing - 4x M4x16 bolts & nuts - appropriate hardware for mounting your motor and the drive gear onto its shaft To assemble the motor interface: 1. Use the input shaft interface in this remix instead of the original input shaft interface. Use 2 M2.5 nuts and set screws to lock it onto the 3mm rod input shaft. There should be about 6mm or so of rod sticking out the end of the interface. This rod portion will support one end of the reduction gear. 2. Insert the 30mm long 3mm rod into the reduction gear shaft (on the other side from the geared end). Leave about 10mm sticking out the end of the reduction gear shaft, and lock it using 2 M2.5 nuts and set screws. 3. Insert the geared end of the reduction gear onto the input shaft interface. The splines on the input shaft interface should mesh with the cutouts in the reduction gear. 4. Attach the motor drive gear onto your motor using appropriate hardware. I included 2 versions of the drive gear - one that uses M2.5 nuts and set screws, and a "thin" version for mouting directly onto the motor (if you have a RC-style brushless type of motor). Hopefully you can use and/or modify one of these to suit your motor. 5. Insert the R2ZZ bearing into the cutout in the bell housing mount, and fasten your motor to the mount using appropriate hardware for your motor. The motor shaft needs to line up with the motor centering hole in the bell housing mount. You may need to adapt the mounting holes to suit your motor. You might also need to use spacers to get the drive gear to mesh with the reduction gear. 6. Fasten the bell housing mount to the bell housing with the M4x16 bots & nuts. Notes: A. The drive gear/reduction gear ratio is 12 to 40, or 0.3. This means that the input shaft will spin 0.3X as fast as the motor. If you are using an RC-type brushless motor, you might have to use a very low throttle setting to avoid overspeeding the model. B. A 28-26 size RC-style brushless motor will just fit in this interface. I think that is about the maximum size motor you can use. You will have to use the thin drive gear if you use this size motor. C. RC airplanes and helicopters is one of my hobbies, so it was natural for me to design this around an RC-style brushless motor. To run the motor I use an RC receiver and ESC off the throttle channel. A bit "clunky" as I need to use my RC transmitter, but this is a lot better than turning the model by hand! This is a remix from https://www.thingiverse.com/thing:713815