[Milsurplus] RBB receiver - SRR-11/12/13

[Bob Camp]

Hi

It works quite well on a home printer. The parts are cheap and it’s fairly easy to come up with a simple part. After about a 
dozen or so tries, the part is like to work. It’s a weekend’s worth of work. 

At that point you have a part made out of low temperature thermo-plastic. The stuff also dissolves in common solvents like
acetone. It’s great for things like feet as long as you don’t use oil and solvents around them. 

If you want to go to something a bit more sturdy, you bump from a thousand dollar printer up to a $50K type machine. That 
gets you a part that is more solvent resistant. It’s still got some temperature issues. The trial and error process is still about the
same. 

For a metal part, there are printers that can do that as well. Figure that a simple part that would cost you twenty or thirty dollars to 
machine will be about 10 to 100X that printed. For a complex part, the ratio will not be quite as bad. Figure on the same sort 
of trial and error unless you have a very good drawing of the part. 

So yes, it does work. Been there / done that. Have a couple printers in the basement. Run the more expensive stuff with work
paying the bills. That’s way to expensive for me. I can’t afford $10K do-dads ….

Bob


> On Jan 27, 2016, at 7:47 PM, mstangelo at comcast.net wrote:
> 
> Just a thought, using 3D printers could be used to make replacement parts for some of our surplus sets.
> 
> Has anyone tried fabricating with 3D printers?
> 
> Mike N2MS
> 
> ----- Original Message -----
> From: Kenneth G. Gordon <kgordon2006 at frontier.com>
> To: milsurplus <milsurplus at mailman.qth.net>
> Sent: Thu, 28 Jan 2016 00:32:13 -0000 (UTC)
> Subject: Re: [Milsurplus] RBB receiver - SRR-11/12/13
> 
> <snip>
> 
> I got so I liked them...except for those damned pot-metal cranks on the 
> band-switch mechanism which were always breaking.
> 
> As long as one kept the receiver on one band, they didn't matter.
> 
> Someone on Josh Rovero's page designed a cheap and effective fix for 
> those things, though.
> 
> Ken W7EKB
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