3.5mm timing pulley

[frito169]

Does anyone know where I can get 3 1/2 mm timing pulleys to fit this machine?

[HeliSmith]

Not that I am aware 3.17 and 4

[frito169]

I wanted to try the turnigy motor or new KDE motor coming out but can't find 3.5mm pulleys. Anybody? how about this, does anyone know the specs on the stock timing pulleys?

[itsmillertime0]

Press in a 3.175mm motor shaft or turn the 3.5mm one down. I'm trying to find a machine shop to whittle a couple down for me.

[BaconRaygun]

Originally Posted by frito169

I wanted to try the turnigy motor or new KDE motor coming out but can't find 3.5mm pulleys. Anybody? how about this, does anyone know the specs on the stock timing pulleys?

That motor (KDE) may be a little high on the KV scale, but if you find the right pulley, that thing will be a BEAST!

[radu7]

At least one person has taken the 3.17mm pulley and drilled it for a 3.5mm motor shaft.

https://www.helifreak.com/showthread.php?t=496535

I asked him about it a while back and he said he just drilled it out with a dremel/hand drill and an appropriately sized bit. If you've got access to a drill press or know of a machine shop nearby, even better.