Great Man!
thx so much for sharing this!!!
is there a way to include this into my tinkercad library?
or can i just download the full design?
i want to ungroup some parts so that i can download them seperately.
Ok seems ive been too stupid at tge 1st try now it worked thx man
Ill print this for a friend of mine he wants to start a mtb project
Keep you up to date if its working
I’ve done nylon herringbone and spur motor gears (wheel gears all in PETG) but had issues with the grub screws loosening due to the slight flexibility in the Nylon. I’ve always used m4 nuts inserted, flush with the flat faces of the motor shaft inside the motor gears and grub screws secured via loctite to the nylon/nut. Even then, they eventually loosen.
Have you had these issues? Do you use stronger or more rigid nylon? Edit: ah I see, nylon X… strong, rigid… Do you bond the motor gear to the shaft with glue or something? Grub screws? Keyway?
Besides the grub screws thing, especially with keyway, they held up great as long as they were sufficiently enclosed from the elements, never misaligned (herringbone), and keyway kept them turning even with loose grub screws.
I’d love to revisit the 3D printed gear drives at some point.
just for info
I changed the gears from helical to stright cause straight metal gears are cheaper than helical ones
in my case the gear ratio is 52:12
Im going to print this with taulman 910 alloy, keep you up to date if it worked
Herringbone gears used intentionally for strength, maximum surface contact between meshing gears acheived in this configuration. A desirable property for 3d printed gearbox… YMMV if altering the design.
did you also use the 3d printed motor pulley or did you use a metal one? if you use a metal one would it be possible to tell which one you used?
Link maybe??
THX very much