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peter k Joined: 26 Dec 2009 Posts: 207 |  Posted: Mon Jan 26, 2015 7:52 pm Post subject: Focus Scale screw size?
Focus Scale screw
Nuts... dropped to the floor.. used magic wand magnet ect... no can find. So need the size of the small screw (1 of 2) that holds the focus scale to its flange, that can be adjusted on the rail of a Pacemaker 4x5.
In the manual
http://graflex.org/manuals/45-Pacemaker-Speed-and-Crown-Graphic.pdf
does not have it in the parts list on page 30 for the complete bed.
on page #1 .. item #12, it states to see section 102.
Where can one find section 102... or better yet if one knows the size.
I may just have to go to ace and see if they have one that matches the other, but its so small..
thanks for any help |
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wcarroll Joined: 26 Sep 2013 Posts: 12 |  Posted: Mon Jan 26, 2015 9:31 pm
I don't know the size, but I have had good luck finding tiny machine screws at my local well-stocked hobby shop. |
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45PSS Joined: 28 Sep 2001 Posts: 4081 |  Posted: Mon Jan 26, 2015 11:48 pm
Probably a #0-80. May be brass. I use a wet/dry vac and vacuum a 6-8 foot radius of where the screw was dropped then carefully sift through the collected debris, if its not there I dump the debris and go again in a larger area around the work area. I find 99% of lost screws and springs. |
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Henry Joined: 09 May 2001 Posts: 1662 |  Posted: Tue Jan 27, 2015 12:47 am
On my Century (different camera, but possibly/probably same screw) the book says "Screw - Machine (special)". Not very helpful; so I removed one of those screws from my Century and it's a #2-56, round head, brass (blackened), about 1.5 mm long. This, I daresay, is not going to be an easy one to find. My standard go-to place for items like this is the model railroad hobby shop; 2-56 is a common size in the hobby, but that's a really short screw you need, and cutting down a longer one is not going to be fun because they are vanishingly small. Still, you might get lucky and find one to fit. Hope so. |
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peter k Joined: 26 Dec 2009 Posts: 207 |  Posted: Tue Jan 27, 2015 2:00 am
Well I tried the vacuum, but the dang thing is so small.. so went off to local Ace.. we don't have a hobby store here anymore (Sedona Az) and lo and behold they had a stainless steel one, longer shank, and much larger head.
Tried it, and sure enough the head did not allow the bellows and lens to be pulled out. So tomorrow, will file the head down.
Got a couple of them..  |
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45PSS Joined: 28 Sep 2001 Posts: 4081 |  Posted: Tue Jan 27, 2015 2:15 am
| Quote: | | Well I tried the vacuum, but the dang thing is so small.. |
Ah, the dropped screw gremlin ate it, I can't stand those little buggers.
Henry,
The special probably applies if the screw has a unthreaded shoulder about the thickness of the scale. I'm surprised its that large in diameter.
I don't have a camera on hand with focus scales to measure. |
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peter k Joined: 26 Dec 2009 Posts: 207 |  Posted: Tue Jan 27, 2015 2:31 am
The original head is 1/8" wide.. sure looks smaller than that, but then maybe it looks so much smaller because of the blackened brass, .. or is it the aged eyes between light and dark.
New head is 3/16..
Yeah...screw that gremlin, he's gonna be replaced.  |
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Jim C. Joined: 18 Feb 2011 Posts: 89 |  Posted: Tue Jan 27, 2015 6:45 am
Vacuuming is the worst thing to do when looking for screws that size
I usually keep a drafting brush close by when I do drop a screw, I'll use it
to sweep the area and sift thru the the sweepings. Rare earth mags work well
if the dust pan is non ferrous, sweep the magnet under the dust pan holding
the sweepings if it's ferrous it will follow the magnet.
I can't tell you how many times I've wiped loose screws off a table by accident. |
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Henry Joined: 09 May 2001 Posts: 1662 |  Posted: Tue Jan 27, 2015 2:59 pm
| 45PSS wrote: |
Henry,
The special probably applies if the screw has a unthreaded shoulder about the thickness of the scale. I'm surprised its that large in diameter.
I don't have a camera on hand with focus scales to measure. |
I compared the screw with a 2-56 tap; the gauge was an eyeball match, and the threads matched perfectly. The length is my guesstimate. I don't think it had an unthreaded shoulder. The head is small, c. 3/32", barely larger diameter than the shank, certainly smaller than usual for a 2-56 round head, so maybe that's what's "special" about it. |
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45PSS Joined: 28 Sep 2001 Posts: 4081 |  Posted: Tue Jan 27, 2015 7:36 pm
Anything other than standard stock from suppliers is "Special".
JimC
kinda hard to sweep a carpeted floor where a screw or spring fell with a soft brush. The vacuum comes out after a thorough hand rub, bright light search, and a magnet sweep don't produce the dropped piece. |
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Henry Joined: 09 May 2001 Posts: 1662 |  Posted: Tue Jan 27, 2015 9:13 pm
| 45PSS wrote: | | Anything other than standard stock from suppliers is "Special". |
IOW, PITA. |
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