CNC Machining tolerance

[mothman]

Is there anyone here familiar with CNC machining? I have a CAD design for custom Savage TVPs that I want to get it machined. Someone helped me to designed it and RCM Mike tweaked it a little bit couple of years ago. I then changes a few things on the design. I just need some help to determine the tolerance that I should specify with the machinist.. Any help would be greatly appreciated.

[TexasSP]

Typically +/- .005's

That should be plenty close enough for TVP's. Some moving parts and such would need to be tighter.

[_paralyzed_]

Originally Posted by TexasSP

Typically +/- .005's

That should be plenty close enough for TVP's. Some moving parts and such would need to be tighter.

I used to be a framing carpenter. If we got within an inch we figured the sheetrock would cover it

[JAILBIRD]

My usual tolerance is 5 tenths (.0005") but that's what some of our customers require. .005" would be more than acceptable for what you are doing.

[RC-Monster Mike]

+/- .005" would be fairly standard tolerance for this type part. The motor mount on that design was fairly intricate as I recall, so that may need to be a bit tighter, but for everything else the +/-.005" would be fine. Remeber, the machine shop will charge considerably for very tight tolerances(.0005", for example, is ten times the tolerance of .005" and therefore requires paying much closer attention).

[mothman]

Mike, thank you for the help! Would you be able to machine the parts for me? I have sent you a PM.