RE: Tools used - was [PSUBS-MAILIST] Bill Gifford's Project

["Alec Smyth" <Asmyth@changepoint.com>]

The dolly is really basic... just a frame with castors on the bottom for
pushing it around, and castors on top to roll the hull on. There's a
picture or two on the PSUBS gallery.

I'm using a shop crane, of the kind you can get at Harbor Freight. It
lifts 4,000 lbs and only cost a couple hundred bucks, so although one
could easily build something like that, they can be purchased so
inexpensively I just don't think it's worth the time. It would be nice
to have an overhead system, but even if I did I think this little shop
crane would be invaluable. I can lift the whole sub with it, but also
use it for moving small stuff around all the time. For example, I've
lifted that 3' disk on the rotary table up by hand, but it's way easier
to do so with the crane. 

Rgds,

Alec

-----Original Message-----
From: Steven Mills [mailto:barycenter@earthlink.net] 
Sent: Monday, May 26, 2003 12:41 PM
To: personal_submersibles@psubs.org
Subject: Re: Tools used - was [PSUBS-MAILIST] Bill Gifford's Project

>From: William Alford <walford@dbtech.net>
>
> >Two key home-made items were 
> >the sub dolly and a home-made, motorized rotary table large enough to
mill 
> >circular objects the diameter of the pressure hull.
> 
> Hey Alec,  care to expand on your constructioni of the home-made
rotary table?

While you're at it could you describe the sub-dolly, too? Also, are
you [ and Carsten ] using a boom crane or overhead crane [on tracks]?
Did you consider building your own crane?

--Steve