milling a part

[artrans]

i want to mill a connecting rod out of 1/4 plate alum to start so lets say I have a piece of plate 4 inches wide 10 inches long a mount that in the mill do I need a hole in the center of the connecting rod to hold it to the machine or what happens when it is cut out.

[Tweakie.CNC]

Usually the two holes at either end of the con rod are cnc drilled/milled and these are used to secure it to a sacrifical plate (wood perhaps) then it is profile cut.

Hope this helps.

Tweakie.