I am not able to make this sketch in Autocad. I think dimensions are insufficient .Can any one help me how to draw it ?

I have no idea how to use dia. 28 and dia.40 units given in the sketch
Can you help help me in drawing in autocad? below is the file regarding it.

1 Answer

Best tactic is to just try sketching it.
Turns out the sketch tangencies bring it all together. Looks like a crank handle that presses into a handwheel, 30R on RH end is just to finish it off.
Good luck.