I have created a hub that is similar in design to a dirt bike hub without the spoke holes. I Basically need one made and then another one made the exact same way but 1 inch longer on either side. This means that the bearing holes would have to move out on inch and the bolt holes on both sides would move out as well. The question is can this be specified in comments to the machinist or is it to much different to do it this way. The reason I would like to do this is I only need one of each for my prototypes and I didn't want to pay a setup fee twice for a part so similar. The only difference in the e machine program would be to select the circle with the bolt holes in it on both the top and bottom and make them an inch longer.
Any help will be apprecited.
I didn't find the right solution from the Internet.