[TowerTalk] Rotator Bolt Patterns

[mikflathead at aol.com]

 It has a lot to do with good machinery also :). Mike
 
 
-----Original Message-----
From: terry burge <ki7m at comcast.net>
To: TowerTalk <TowerTalk at contesting.com>; terry burge <ki7m at comcast.net>
Sent: Sat, Dec 1, 2018 8:35 pm
Subject: Re: [TowerTalk] Rotator Bolt Patterns

I've never found it very easy to match up bolt patterns. Rotors with a flat bottom it would seem like you could copy it to a piece of cardboard or paper to make a pattern you could use easy enough. But the idea of elongating a bolt hole I never figured out how to do without some special equipment. Don't think I ever even seen one. Otherwise I would have one in my shop cause I've always found matching hole in thing much easier with slotted holes on frames or whatever. Best I could do was run the risk of breaking a drill bit by 'trying' to tilt it. And of course that is a risky thing that could just break the drill bit. Done that too many times with light weight drill bits. The last time it was 1/8' on and thanks to Harbor Freight I now have a whole package of just that size which I know will come in very handy.

Always admired true mechinist and the things the knew how to do.

Terry
KI7M
 
> On December 1, 2018 at 4:50 PM Raymond Benny <rayn6vr at gmail.com> wrote:
> 
> 
> The Ham M and Ham 1 - 4 series rotators use (4) 1/4 " bolts.
> 
> The T2X uses (6) 1/4" bolts. The two additional bolts are in the same
> radius as the 4 other bolts, but just centered between two of bolts on
> opposite sides.
> 
> Ray,
> N6VR
> 
> On Dec 1, 2018 5:23 PM, <john at kk9a.com> wrote:
> 
> I would not let bolt pattern limit your rotator choices. I have not owned a
> Hy-Gain rotator in decades. Drilling holes or elongating the existing ones
> is very easy. Your rotator shelf may already have elongated holes, I do not
> recall doing anything to install a Yaesu G-2800 in my P40A Rohn 55G tower.
> 
> John KK9A
> 
> 
> Kim Elmore N5OP Wrote:
> 
> I'm investigating rotor that will fit the same bolt pattern as a T2X but
> that are a bit beefier. Mine works well, but in windy conditions, I
> can't turn may antennas  due to wind imbalance. What beefire rotators
> will accommodate the same bolt pattern?
> 
> Kim N5OP
> 
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