[T] Pulley Out Of Stock

A project log for SecSavr Select [gd0091]

Compact filament selector for 8 3D printer filaments

kelvinAkelvinA 06/28/2022 at 14:404 Comments
Finally digging through my massive aliexpress basket and found out that this part is no longer available. I might have to print it if I can't find an alternative part.


Daniel Grace wrote 06/30/2022 at 00:55 point

Funny, I just ordered almost exactly this, but 20T. One of the things I'm trying to pay attention to in my custom stuff is using parts that are used by other projects. For instance, a lot of 3d printers use 20T 6mm pulleys, so I feel confident there will be suppliers for those for the forseeable future. I know it's not always as easy as swapping them out, you might have specific torque goals here, but maybe you could do with 20T as well?

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kelvinA wrote 06/30/2022 at 00:57 point

The problem is that it's designed to be installed onto a hobbyist servo and not the tooth count.

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Daniel Grace wrote 06/30/2022 at 01:05 point

Oooh, I didn't notice the left hand side ones had that weird inner bore. Yeah, that's interesting and not something I've seen before.

Do you know how those pulleys are made? They seem to have two parts, and only the inner part differs. I wonder if there's some way to get just the inner part or to make/print an adapter that's just the inner part.

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kelvinA wrote 06/30/2022 at 01:31 point

Can't seem to find anything. 

From what I could gather, the 25T shaft is 5.8 or 5.9mm, so maybe a 6mm ID pulley with a grub screw could work.

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