If you have access to a cutting torch I would use that to cut the excess
material. If you were near my shop I would do it for you. Any good welding shop
in your area should be able to do that for you.73 NR6M
ex: KF7NMD
Sincerely,
Rex Turvin
Vice President CADXA
www.nr6m.com
From: Rich Hallman - N7TR <rich@n7tr.com>
To: "towertalk@contesting.com" <towertalk@contesting.com>
Sent: Monday, September 7, 2015 11:33 AM
Subject: [TowerTalk] Grinding hole in thick steel plate?
I had a ¾ inch steel plate made up that will be used to retrofit a HDX589 base
foundation to a HDX572 base. After giving both bases to the machine shop and
asking them to make sure all of the holes are exactly the same location as the
base, some of the holes are 1/8 to ¼ inch off. I had a major issue with this
machine shop so I will not take it back for now.
I wanted to see what others have done to grind out holes in thick steel plate.
I was looking at the Carbide Burr bits and getting a ¾ inch burr bit to see if
that would grid enough from the hole so it would then fit the bases.
The holes are pretty close....so I thought grinding them out would be the best
solution for now.
Any thoughts?
Thanks....Rich
Rich N7TR
ex KI3V, N3AMK, WB3JOV
www.n7tr.com<http://www.n7tr.com>
http://www.qrz.com/db/N7TR
Telnet: dxc.n7tr.com N7TR DXCluster
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