Society of Robots - Robot Forum

Mechanics and Construction => Mechanics and Construction => Topic started by: boulderjoe on March 25, 2008, 08:44:50 AM

Title: Cutting hole in thick metal in PGH/CMU area
Post by: boulderjoe on March 25, 2008, 08:44:50 AM

Does anyone have know where I could use the tools to cut a 2.5" hole in a metal box in the PGH/CMU area? Or know of a place that I can get this done?

I have been using a nibber and a dremel but the hole is not... pretty or round at that point ;)

Thanks,
-Joe

Title: Re: Cutting hole in thick metal in PGH/CMU area
Post by: boulderjoe on March 25, 2008, 08:57:25 AM

I should add its only 1/8" thick metal, from an army surplus box.

Thanks,
-Joe

Title: Re: Cutting hole in thick metal in PGH/CMU area
Post by: bukowski on March 25, 2008, 10:34:59 AM

Since Ø2 ½" drill bits get a little pricy, and Im assuming you dont have a press anyway (especially one with that big of a chuck), your best bet would be to find someone that does. If all else fails, take it to your local machine or metal shop and they'll probably do it for a fiver.

Title: Re: Cutting hole in thick metal in PGH/CMU area
Post by: paulstreats on March 25, 2008, 05:53:51 PM

it might be best to get it cnc'ed using a smaller bit, rather than trying to cut a single large hole like that through thin metal. The cnc will use a small bit, but cut out a circle with it - under computer control

Title: Re: Cutting hole in thick metal in PGH/CMU area
Post by: Kohanbash on March 26, 2008, 05:43:13 AM

If you are at CMU there are 4 (maybe 5) machine shops on campus (RI,MechE,ChemE,Art)