Thingiverse
10:1 Cycloid Heli Gearbox by Corona688
by Thingiverse
Last crawled date: 3 years, 1 month ago
It's always cycloids with me lately, isn't it?
This is my second attempt at making a gearbox which fits motors from a crashed RC heli, the first which works acceptably: Note I do not say fly as much as "whirl its blades around alarmingly". Unlike my previous attempts it has no preferred rotation of direction. It cannot be backdriven -- if you try and let the motor freewheel, it will just seize!
Required vitamins:
1 x 625 ball bearing
Probably epoxy, to hold the cam in place
30mm M3 and 14mm M3 bolts, 4 x M3 nut
Main motor and mounting bolts from "Sanhuan 8827 RC Helicopter", aka Pioneer X8
Mounting bolts and pair of "A" or "B" blades from above helicopter
A mess of 4.5 mm ammunition
Four 4.5mm balls are used to join the wobbling gear to the output plate as shown in picture 3. A bunch more are used in a thrust bearing as shown in the cutaway view.
Source files at http://burningsmell.org/3d/heli/
This is my second attempt at making a gearbox which fits motors from a crashed RC heli, the first which works acceptably: Note I do not say fly as much as "whirl its blades around alarmingly". Unlike my previous attempts it has no preferred rotation of direction. It cannot be backdriven -- if you try and let the motor freewheel, it will just seize!
Required vitamins:
1 x 625 ball bearing
Probably epoxy, to hold the cam in place
30mm M3 and 14mm M3 bolts, 4 x M3 nut
Main motor and mounting bolts from "Sanhuan 8827 RC Helicopter", aka Pioneer X8
Mounting bolts and pair of "A" or "B" blades from above helicopter
A mess of 4.5 mm ammunition
Four 4.5mm balls are used to join the wobbling gear to the output plate as shown in picture 3. A bunch more are used in a thrust bearing as shown in the cutaway view.
Source files at http://burningsmell.org/3d/heli/
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