pic: 3 cim shifting gearbox from 2471

[akoscielski3]

Originally Posted by thinker&planner

Pretty nice.
Out of curiosity, did you waterjet the bearing holes and bolt holes in addition to the lightening pattens?
This past year, we only waterjetted the lightening patterns and outer profile, and then did all the mounting holes and bearing holes by hand with a mill (DRO!)

Did you cut smaller holes on the waterjet and then drill them with the proper drill size on the mill? or did you leave that section blank and then drill the holes?

If you water jet the holes to a smaller size then drilled them out with the proper size you could save time. You should do that on a drill press though so the drill bit goes into the center of the hole by itself. That's what I would do at least.