That's a good option. I'll also use the scale feature to make things work. Be careful when scaling and make sure things are still aligned to center.
I don't know which part you're on. I don't have any .18 holes. Maybe 1/8"? I used 1/8" and 1/4" dowels on most things. I'll also sometimes cheat (probably a bad habit for students to use, and a bad habit for me) by using a 1/8" bit but calling it a .122 in the set up to have it drill. You definitely want to have an upspiral bit.
Here's a link to the easel file for the right angle gear set up. http://easel.inventables.com/projects/aAB6t0rkDZ9IOINlAIh0Fw#
I did cheat to make in drill 1/8" holes. Anyone know how to get easel to drill i.e. make a 1/8" hole with a 1/8" bit?