Technical Drawing/Drafting

HiI usually download them from 3d cad portalswhat gear do you need?

You may take a look at my tutorials: https://youtu.be/Rk5oFH_fSh0 and https://youtu.be/XMdkNPOzI-g

Good luck!

The gear face is an involute curve. Imagine a string rolled on a drum.

if the string is a set length then the arc the end of the string makes as it comes off the drum is an involute curve. Not too hard to draw and create a good approximation. the number of teeth and thickness of tooth also affects this, but these are approximate gears and work well in low to medium loads for 3d printed parts. if you are engineering high load gearing then there are more considerations.

Thanks mark

Thank you, i hope can draw gears your tutorials

thank you for attation, i am not good at mechanical engineering, so i feel cant draw gears nowdays and i will learn what draw gears