All

I obtained a failed cylinder from a local dive shop and a buddy with a   
machine shop kindly sliced it in quarters and welded 2 of the quarters to   
a plate to make a "cylindrical" V-weight that snugly fits between the   
cylinders.  I can get a maximum of about 4 and a bit Kg (9 lb) between   
the cylinder and OMS SS backplate.  I also have a baffle shaped to fit   
inside the mould that allows me to vary the length of the weight cast.

If I need more than 4 Kg then I can use the same mould to cast a   
potentially massive weight that will fit on the outside of the cylinder   
and be bolted through to backplate.  I have not yet cast this weight but   
plan to do so with SS studding permanently embedded within it so that the   
weight is snag-free at the rear.

My buddy used part of the sliced up cylinder to make cylindrical   
H-weights of around 1.5 Kg (3.3 lb) each.  H-weights keep the centre of   
gravity low.  Each weight is about 30 mm (just over 1") high so it is   
easy to slot in as many as needed.  This idea is excellent but does need   
a cylinder band removed in order to fit them.

Dave
shimell@se*.co*

 ----------
From:  owner-techdiver[SMTP:owner-techdiver@aquanaut.com]
Sent:  30 June 1997 15:40
To:  kevin; techdiver
Subject:  Re: alum vs. ss backplate <summary and addl q.

Kevin wrote:
>Are the wkpp style triangular weights homemade, or can they be bought
>somewhere?  Should the size (length) of the weight be adjusted to
>completely eliminate a weight belt? (assuming using lp twins)
>
>Thanks.

Kevin,

We have a couple at the shop just sitting around if you want one. I had
a couple of the guys make a mold out of steel, and it works really well.
I tried it first with the plaster, but that turned into a mess because
I did not let it dry long enough. It was like frying bacon in your
underwear (another thing I only did once).

Anyway, give me a 5 lb weight and I'll trade, or if you want a heavier
weight I'll loan you the mold. I'll be putting this up on my web site
once I finish one of the other 1,000 projects I'm working on.

BTW, the "shop" is Fifth Dimension in Kent.

 -Jon
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