Hi Rich,
I had a similar issue a few years ago with some bolt holes in 3/4" A35
steel. Local shop with a plasma cutter took care of it quickly and very
inexpensive.
Matt
KM5VI
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Rich
Hallman - N7TR
Sent: Monday, September 07, 2015 1:33 PM
To: towertalk@contesting.com
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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