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Brad Groves
(4quietwoods) - MLife

Locale: Michigan
Welding? on 08/23/2008 11:00:59 MDT Print View

One of my planning-stage projects is a UL tripod for a SLR w/300mm lens. In designing the head, I'm wondering what I'd have to do to put the leg supports on. I might be able to have a block milled by a machinist, but it seems like a heckuva lot of waste. Thoughts?

Mike Hinsley
(ArchNemesis)

Locale: England, UK
Welding? on 08/23/2008 15:29:36 MDT Print View

Technoweld will braze aluminum but it's gonna take real skill to use it well.

Frankly I'd plan to use simple rivets and/or adhesive - it's cheap, light and easy to do.

Dan Yeruski
(zelph) - MLife

Locale: www.bplite.com
Re: Welding? on 08/23/2008 18:00:56 MDT Print View

Make the head out off wood and use threaded T-nuts into the wood to receive threaded legs.

Roger Caffin
(rcaffin) - BPL Staff - MLife

Locale: Wollemi & Kosciusko NPs, Europe
Re: Welding? on 08/24/2008 04:24:40 MDT Print View

> I might be able to have a block milled by a machinist, but it seems like a heckuva lot of waste.
For a one-off? Hardly: it's a very small block of Al to start with.
Let us know how this goes - I have often speculated about it myself.

Brad Groves
(4quietwoods) - MLife

Locale: Michigan
Re: Re: Welding? on 08/25/2008 12:41:52 MDT Print View

Ahhh- I forgot the vital "ingredient" and question under the question. I was going to make it out of titanium. But for something like this (0.25" thick, 2.25" diameter, plus leg supports) how much weight savings would I find between Ti and Al? Would it be an ounce or less? Thanks!

Greg Mihalik
(greg23) - M

Locale: Colorado
Re: Re: Re: Welding? on 08/25/2008 13:02:07 MDT Print View

The density of Ti is 4.5 g/cc. Al is 2.7 g/cc

So....Ti is 1.666 denser/heavier than Al.

An Ti isn't particularly easy to machine.

Save weight and $$ with Al.

Vick Hines
(vickrhines) - F

Locale: Central Texas
Re: Welding? on 08/25/2008 17:21:20 MDT Print View

Have you considered wood? If that seems impractical, aluminum is easy to work with home shop hand tools.