Cant find a source for pinchwheels?

[DBFIU]

Why is this part impossible to find? I am looking all over the web and I can't find any selection of pinchwheels for a 5MM shaft. I type in "3d printer pinchwheel" in google and get useless garbage as my result.

Where do people get their pinchwheels from when they want to piece together their own extruders?

[RAMTechRob]

They are called hobbed rollers.

http://seemecnc.com/products/hobbed-drive-roller

[jimc]

Yes or go on ebay and search "extruder drive gear"

[DBFIU]

I'm looking for one with a small OD, my NEMA 17 motor is direct drive to the pinchwheel and it doesnt have enough torque to turn a big wheel. I need something 7mm OD or less. Thanks guys

[DBFIU]

I think this might work.

http://www.newegg.com/Product/Produc...B&gclsrc=aw.ds

[stillcool40]

I think this might work.

http://www.newegg.com/Product/Produc...B&gclsrc=aw.ds

go into hobby/model shop and ask for universal joint for model boat prop shaft.
they use exactly what you want and come in various shaft diameters.

[DBFIU]

go into hobby/model shop and ask for universal joint for model boat prop shaft.
they use exactly what you want and come in various shaft diameters.

I used to build model RC boats and I never saw anything that resembles a serrated pinchwheel for a 3D printer? Can you link me to one? Would be great if I can find one locally.