DIY

3556 readers

1 users here now

Share your self-made stuff and half-baked projects here.

Also check out !diy@beehaw.org

There is also a related XMPP chat.

founded 3 years ago

MODERATORS

poVoq@slrpnk.net

After 3 prototypes and several motors I finally got this cat toy motorized, still pretty loud though I wonder if I can dampen the gearbox somehow (i.imgur.com)

submitted 3 weeks ago by StarvingMartist@sh.itjust.works to c/diy@slrpnk.net

13 comments fedilink hide all child comments

you are viewing a single comment's thread
view the rest of the comments

[–] unexposedhazard@discuss.tchncs.de 3 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

That is really loud 🤔 It doesnt look like you have a lot of space for dampening tho sadly. If it has a hole for oiling it you can try that, otherwise i would try a different motor.

Maybe a mini stepper motor? Those are more complicated to control but if you add a microcontroller it would give you a lot of potential for more unpredictable/erratic movement of the toy and reversable directions which the cats might find fun.

[–] StarvingMartist@sh.itjust.works 2 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

I mean the motor is actually smaller than the cap that it's spinning around, I probably have an inch and a half of space around the thing, only thing is, it's an open gear box for some reason, so I don't want to go sticking cotton or something in there to deafen it, I could oil it sure but its a brand new motor it theoretically should be pretty smooth.

Another thing that may be affecting this is weight distribution, the "slot" for the motor arm is more or less just hot glue, it has a good grip but I doubt its totally center, and I bet that matters with this wide of a balance it has to compensate for.

Idk I might try and 3d print another one with a custom slot but getting the threads right for the toys arms might be a bit of a bitch

[–] unexposedhazard@discuss.tchncs.de 2 points 2 weeks ago

Idk what the motor looks like but im thinking that if you have a 3d printer then you could make a cover that goes around the gearbox and then afters is nice and sealed you can wrap it in fabric or rubber or something. I dont think the friction or vibration of the motor arm would cause such a high pitched noise.