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Re: [OM] Using enlarging lens/cutting hole

Subject: Re: [OM] Using enlarging lens/cutting hole
From: "Tom Trottier" <tom@xxxxxx>
Date: Fri, 23 Jul 1999 17:08:10 -0400
I didn't know drills had dresses. I always thought of them as 
masculine.

I guess my brother-in-law's router might be a tad too harsh for the 
plastic. 

Tom

--- Original Message ---

Date sent:              Fri, 23 Jul 1999 10:48:06 -0500
From:                   Gary Edwards <edwardsg@xxxxxxxxx>

> There are several ways, depending on the availability of machine tools.  
> Someone
> else has described a method using hand tools.  If you have access to a drill
> dress, you can use an adjustable circle cutter set to cut the correct size 
> hole.
> Clamp the cap carefully to the table, be sure it is centered, adjust the drive
> belts to the pulley set giving the slowest speed, and feed slowly.  If you
> haven't used an adjustable circle cutter before, practice on some scrap
> material.  They tend to grab, so the secret is a light touch on the feed 
> lever.
> When the hole is finished, smooth the burrs with fine sandpaper, working
> tangentially so the scratches won't propagate as a crack.
> 
> Good luck,
> Gary Edwards.
> 
> Tom Trottier wrote:
> 
> > To summarise the best advice: make a lensboard out of an OM body cap
> > using a retaining ring. Any advice on making the 39mm hole?
> >
> > Tom
...
------------------
From:Tom Trottier, ACT Productions Inc.
    __o  tom@xxxxxx  http://www.act.ca
  _ \<   +1 613 594-4829  fax +1 613 594-8944
(*)/'(*) 199 Holmwood Ave, Ottawa, Ontario Canada K1S 2P3
"Make it as simple as possible, but no simpler" - Einstein

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