Pete Keillor wrote:

On Sat, 30 Jul 2005 07:39:36 -0400, Pete Keillor
wrote:


On 29 Jul 2005 20:16:48 -0400, (DoN. Nichols)
wrote:


In article k.net,
Rick wrote:

Ig's concept of a "big hole' is a little different than ours : )

By the time you drill the pilot for a Greenlee, you're almost 1/2"!

But a Greenlee punch is available to punch the 15/32" hole with
a key tab to keep the switch from rotating in the hole.

And a 15/32" Greenlee chassis punch without the key would use
about a 3/8" drivescrew, IIRC.

Enjoy,
DoN.

I agree with DoN for home. For work, I design the entire enclosure
with all holes larger than a 1/4" or so, and send it to Saginaw
Controls down the road. They plasma cut the entire sheet, including
tabs for standard controls, and then bend it up and weld it. This
works especially well in stainless (I do a lot of sanitary stuff),
which is a pain to punch with a Greenlee.

By the way, I told one of the older electricians about the trick I
learned here to NOT centerpunch stainless before drilling, use low
speed and lube. He was amazed at the improvement.

Pete Keillor


On second thought, I'm not sure whether its plasma, abrasive water
jet, or what. Would plasma work on stainless? It is CNC.

Pete
Plasma loves Stainless. Turns the edges blue and brown. Beautiful.
Deposits chrome balls - that have oxides on them under the cut area.
But yes - cuts like a dream. Really any conductive or semi-conductive
material. Plasma is a current - high burst of electrons that blast a
heat spot and the air pressure blows out the molten metal.

Martin

--
Martin Eastburn
@ home at Lion's Lair with our computer lionslair at consolidated dot net
NRA LOH, NRA Life
NRA Second Amendment Task Force Charter Founder

----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----