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Scott --
15-May-2007, 06:36
Hey, all -

I'm looking for these such things, at this scale: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=015&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=250115036997&rd=1&rd=1. I've searched google best as I know how, but can't seem to find anything at this size. Anyone have any ideas? Looking to use them as a 4x5 focusing mechanism.

Thanks!
Scott

Bruce Watson
15-May-2007, 07:11
You can always try Small Parts. (http://www.smallparts.com/)

Doug Dolde
15-May-2007, 07:13
Or McMaster Carr http://www.mcmaster.com/

Scott --
15-May-2007, 07:34
Awesome. You guys rock. Thanks.

Frank R
15-May-2007, 15:10
I was just shopping for the same thing. The rack selection is limited to one size now at Small Parts. And it isn't cheap.

You may want to look for an old 9x12 camera like a Vag and scrounge parts. I have bought ones cheap that were missing a lens and were broken, peeling leather, etc. I have a 6x9 version that I bought for $2.

You will get other useful parts too.

Tim Shawcross
15-May-2007, 15:17
The stuff at McMaster Carr is good - I've used it before for DIY cameras. The no longer ship overseas though :mad: so I have been forced to find (a much more expensive source) in Australia

Tim

Scott --
15-May-2007, 15:31
I think I'll go through McMaster/Carr on this first iteration. They have the R&P, all the knobs, the steel rod, and I'm sure anything else I can think of needing. Awesome site!

erie patsellis
15-May-2007, 15:33
you may also want to check out stock drive products, sdp-si.com. just reserve an hour or two (and hide your credit card)


erie

c.d.ewen
15-May-2007, 16:17
I also use McMaster-Carr. Their supplier for rack & pinion gears is Boston Gear. I haven't bothered to find out if it's cheaper to buy directly from BG, but perhaps you may wish to.

Charley

Rafael Garcia
15-May-2007, 16:20
Thanks all! A treasure trove of projects now possible! Man, what a great thread!

Randy H
15-May-2007, 16:39
Another supplier much like McMaster is Grainger. Their selection is not quite as extensive on some items, but their prices are competitive. They do sell retail. http://www.grainger.com/Grainger/wwg/start.shtml

phil sweeney
16-May-2007, 01:47
http://www.bostongear.com/

John Schneider
16-May-2007, 23:58
I added geared focusing to my Gowland Pocket View (like the camera, hated the friction drive focusing) and replaced the gear rack on my Durst 1200. In both cases I bought the gears and racks from McMaster. If you know what the parts are called, you can find every standard part used to make a Gowland or a Galvin from McMaster, so chances are Jim and Peter used McMaster as well.

Don O'Neil
21-Jul-2007, 20:25
Google Boston Gear.

Don

Pete Watkins
22-Jul-2007, 01:12
If you still have problems we've got www.hpcgears.com here in the U.K. I've never dealt with them but they seem to have some good stuff.
Pete.

Gustavo
5-Feb-2008, 11:24
any tips on how to purchase gears ? what is a good ratio or pitch?

John Schneider
5-Feb-2008, 12:25
For camera parts, reading the description at McMaster-Carr should be enough information. If you want more detail you'll need to consult a gear design treatise or something like Machinery's Handbook.

Nathan Potter
5-Feb-2008, 13:05
I get such stuff at www.newport.com. It tends to be expensive but it is precision optical gear and perfect sophisticated for home projects.

Nate Potter

Michael Wynd
5-Feb-2008, 14:59
Tim,
whereabouts in Melbourne did you get your stuff. I'm looking at making my own camera and will need gear like that.
Thanks
Mike

erie patsellis
5-Feb-2008, 15:54
go to Stock Drive Products Website, try www-sdp-si.com. and order a set of free catalogs. included in the catalogs is what amounts to an entire treatise on geartrain design, as well as many other related issues. Definately worth the time to ask for the catalog.



erie