[TheForge] 8" hemispheres

[Jerry Frost]

Don: you're going to have trouble getting such a small run made unless they
already have the tooling. If they have to cut the die you can expect at
least a couple hundred just for the die. Of course you won't have to pay for
the die on subsequent orders.

The spinning shop may just figure you're not going to be interested when you
see the price. On the other hand they probably have a decent backlog of
work.

Regardless, getting a dozen hemis anywhere not off the shelf isn't going to
be cheap.

Frosty
------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks

Meadow Lakes, AK.


----- Original Message -----
From: <PlumDon at aol.com>
To: <theforge at mailman.qth.net>
Sent: Thursday, October 28, 2004 3:26 PM
Subject: Re: [TheForge] 8" hemispheres


> In a message dated 10/28/2004 8:55:54 AM Eastern Standard Time,
> sunironworks at yahoo.com writes:
>
> Don,
>
> I've mentioned these guys before, but check out the  metalshapers group
> at http://www.allshops.org/. A lot of these guys have  made cold-forming
> sheet metal machines with an air chisel or riveter as an  engine, with a
> mushroom tip as a top die and whatever you need as a  bottom...there are
> plans on the site. I am out of room and haven't made one  myself, but
> from the videos I've seen it looks as though you could make  your bowls
> pretty quickly and without too much elbow grease on such a  beast. One
> of the folks I talked to said he can make a tank extension for a  harley
> (a deep and complex shape) in about 5 minutes on his,  planishing
> included.
>
> Hi Justin ;
>
> Kindest thanks for the suggestions. I must have missed it before. I have
> perused the site and a lot of good stuff there.
>
> I have bought a few of the 11g hemispheres and have wrapped and welded one
> them with 1/4" x 1" stock.  I also welded on a tongue for the hardy hole
of
> the anvil or whatever. I now have a pretty sturdy bottom die that I can
drive
> the 16g stock into to make the 8" hemisphere. I dont have a press but I do
have
>  a good friend who has one 20 minutes away. I just need a top die now. I'm
> wrestiling with how I can make about a 7-1/2" top die that will work. As
most
> of  you probably know, if you dont get a right fit on a press like this
you
> will end  up with the most gosh-awful wrinkles at the edges.
>
> I have also e-mailed the marketing staff of a couple of reasonably local
> metal spinners but so far no response. My initial order would only be
about
> 10-12 so perhaps they are not interested in small timers. Interesting
business
> problem...trying to get this item in all the right dimensions and at the
right
> price.
>
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