[R-390] Gear clamps

[rkofler at aol.com]

I got a couple of those clamps from Fair Radio several years ago. Don't know if they still have them.

Roger
K7DDG

 

 

 

-----Original Message-----
From: Bob kb8tq <kb8tq at n1k.org>
To: R390A <r-390 at mailman.qth.net>
Sent: Thu, Oct 12, 2017 7:43 am
Subject: Re: [R-390] Gear clamps

HiIf you have a buddy with a small CNC setup, they are the size item that makesa fun project. There’s a lot of stuff that a little desktop just can’t do, but this is one of the things it can.BobOn Oct 12, 2017, at 10:24 AM, Barry <n4buq at knology.net> wrote:> > If you have a drill press, it's not too terribly difficult to make a two-piece clamp similar to that but out of flat aluminum stock of sufficient thickness.  Two pieces drilled and tapped correctly and then clamped together with a small spacer (using the screws you'd use to clamp it to the gear), then drilled (and reamed if you have the right reamer) to the correct size works fine.  I had an R390A with such a clamp (I didn't make it but it didn't look that hard to make).> > Thanks,> Barry - N4BUQ> > ----- Original Message ----->> From: "Stan Gammons" <s_gammons at charter.net>>> To: r-390 at mailman.qth.net>> Sent: Thursday, October 12, 2017 8:55:58 AM>> Subject: Re: [R-390] Gear clamps>> >> A list member contacted me off list to say he used a split clamp from>> Fastenal for the gear clamp.  I'm not 100 percent certain, but I believe>> this is what he was referring to. No, it's not original, but it looks like>> it will work if one drills the hole to the correct diameter.>> >> https://www.fastenal.com/products/details/4142507?term=Sp-4-a>> >> >> 73>> >> Stan>> KM4HQE>> >> >> On October 10, 2017 7:14:13 PM CDT, Stan Gammons <s_gammons at charter.net>>> wrote:>>> Hi Everyone,>>> >>> I have all of the paper caps swapped in the R-390A I'm working on. Now>>> I've started working on the RF deck. I knew it had 1 broken gear clamp>>> before I started. After I started tearing the gear train apart to>>> replace the clamp, I found another broken clamp.  Does anyone have any>>> of the larger size, approx 25/64" diameter hole, clamps you would be>>> willing to sell?  I need at least 2 clamps.>>> >>> Thanks>>> >>> >>> 73>>> >>> Stan>>> KM4HQE>>> >>> ______________________________________________________________>>> R-390 mailing list>>> Home: http://mailman.qth.net/mailman/listinfo/r-390>>> Help: http://mailman.qth.net/mmfaq.htm>>> Post: mailto:R-390 at mailman.qth.net>>> >>> This list hosted by: http://www.qsl.net>>> Please help support this email list: http://www.qsl.net/donate.html>> ______________________________________________________________>> R-390 mailing list>> Home: http://mailman.qth.net/mailman/listinfo/r-390>> Help: http://mailman.qth.net/mmfaq.htm>> Post: mailto:R-390 at mailman.qth.net>> >> This list hosted by: http://www.qsl.net>> Please help support this email list: http://www.qsl.net/donate.html>> > ______________________________________________________________> R-390 mailing list> Home: http://mailman.qth.net/mailman/listinfo/r-390> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:R-390 at mailman.qth.net> > This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html______________________________________________________________R-390 mailing listHome: http://mailman.qth.net/mailman/listinfo/r-390Help: http://mailman.qth.net/mmfaq.htmPost: mailto:R-390 at mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.html