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Photo Forum / Film Photography / Large Format / June 2009Found a squeeze bulb
In our last episode, our hero was wondering where he was going to get a squeeze bulb to operate his old-time shutter. Well, today I picked one up locally, from a medical supply place here in Chinatown (Oakland). Cost me about $5. No outrageous shipping charges, no credit card transactions, no wait, and no money leaving my community, never to return. But the bigger problem isn't the bulb--it's the hose to connect the bulb. I picked up a length of latex tubing ($3 a foot!!!) and a barb fitting that gets me from the bulb into the hose. The problem is that the hose is much too large for the shutter connection, so I'm still looking for parts to do that. (Probably another barb fitting into a smaller piece of rubber tubing.) Everything having to do with these old cameras takes tons of time tracking down stuff.  SignatureFound--the gene that causes belief in genetic determinism On 6/19/2009 2:42 PM David Nebenzahl spake thus: > But the bigger problem isn't the bulb--it's the hose to connect the > bulb. I picked up a length of latex tubing ($3 a foot!!!) and a barb > fitting that gets me from the bulb into the hose. The problem is that > the hose is much too large for the shutter connection, so I'm still > looking for parts to do that. (Probably another barb fitting into a > smaller piece of rubber tubing.) Done. Found an old length of fuel hose in my auto parts box. The auto parts store down the street had the perfect fitting (1/4" x 1/8" barb). The fuel hose fits right over the shutter nipple. Works like a charm. On to the bigger project: finishing the back (5x7 back for what was a 5x8 camera). Then to fix up the old film holders. Then to get film ... By the way, I finished a wooden tripod to go with the camera: http://www.geocities.com/bonezphoto/WoodenTripod.html. It's a prototype, but it came out much nicer than I'd hoped. SignatureFound--the gene that causes belief in genetic determinism > On 6/19/2009 2:42 PM David Nebenzahl spake thus: > [quoted text clipped - 15 lines] > http://www.geocities.com/bonezphoto/WoodenTripod.html. It's a prototype, > but it came out much nicer than I'd hoped. I don't know what you were hoping for, but it looks very impressive. > By the way, I finished a wooden tripod to go with the camera: > http://www.geocities.com/bonezphoto/WoodenTripod.html. Very nice. I would have suggested lignum vitae for the head http://en.wikipedia.org/wiki/Lignum_vitae but I see it is now on the cites list... You may want to look at these folks: http://pobcoplastics.com/td_pob_b.htm for inserts. And Rock Maple has a long history as an engineering material, when impregnated it makes a good bearing: http://www.woodex-meco.com/ http://machinedesign.com/article/wood-you-believe-bearings-0520 And also tripod legs, oil impregnation not needed, as bronze and stainless steel are used as bearing materials: http://www.riestripod.com/tripod.htm I have always thought yew - of yew bow fame - would make good tripod legs. SignatureNicholas O. Lindan, Cleveland, Ohio Darkroom Automation: F-Stop Timers, Enlarging Meters http://www.darkroomautomation.com/da-main.htm n o lindan at ix dot netcom dot com On 6/24/2009 10:29 PM Nicholas O. Lindan spake thus: >> By the way, I finished a wooden tripod to go with the camera: >> http://www.geocities.com/bonezphoto/WoodenTripod.html. > > Very nice. Thanks much for the compliment. > I would have suggested lignum vitae for the head > http://en.wikipedia.org/wiki/Lignum_vitae > but I see it is now on the cites list... Too hard. The stuff is apparently used for such things as marine propeller drive bearings. Overkill for this application. > You may want to look at these folks: > http://pobcoplastics.com/td_pob_b.htm > for inserts. Kewl indeed. Now if they also made *threaded* wood inserts ... > And Rock Maple has a long history as an engineering > material, when impregnated it makes a good bearing: > http://www.woodex-meco.com/ > http://machinedesign.com/article/wood-you-believe-bearings-0520 Thanks. But the clamp system I came up works amazing well with really simple materials. What I have is a large bolt (1/2") inside a sleeve of copper pipe, which fits in a hole in a piece of pine. The wood is cut along the hole, and the handle with its threaded rod pulls the two halves of the wood together to squeeze the pipe. When loosened, it's tight enough to keep its position but loose enough to easily adjust; when tightened, it cannot be moved at all. It should work even better with the "production" wood (mahogany). > I have always thought yew - of yew bow fame - would make > good tripod legs. Yew may just have something there. SignatureFound--the gene that causes belief in genetic determinism On 6/24/2009 10:29 PM Nicholas O. Lindan spake thus: > I would have suggested lignum vitae for the head > http://en.wikipedia.org/wiki/Lignum_vitae > but I see it is now on the cites list... I was confused, and thought there was some problem with the citations in Wikipedia, until I realized you meant the CITES list (Convention on International Trade in Endangered Species of Wild Fauna and Flora). SignatureFound--the gene that causes belief in genetic determinism On 6/19/09 5:41 PM, in article 4a3c1351$0$31893$822641b3@news.adtechcomputers.com, "David Nebenzahl" <nobody@but.us.chickens> wrote: > By the way, I finished a wooden tripod to go with the camera: > http://www.geocities.com/bonezphoto/WoodenTripod.html. It's a prototype, > but it came out much nicer than I'd hoped. Very nice work, David! FWIW, I took the first couple tripods I made and turned them into lamps. Yah, they were not very solid. On 6/25/2009 12:27 PM John Stafford spake thus: > On 6/19/09 5:41 PM, in article > 4a3c1351$0$31893$822641b3@news.adtechcomputers.com, "David Nebenzahl" [quoted text clipped - 8 lines] > FWIW, I took the first couple tripods I made and turned them into lamps. > Yah, they were not very solid. Heh; to paraphrase Cartier-Bresson, I guess your first 20 tripods are your worst ... SignatureFound--the gene that causes belief in genetic determinism |
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