On Sun, 24 Dec 2000 20:16:15 -0800 "Terry Gaiser" <W6RU@bak.rr.com>
writes:
Hi Terry,
>After many years of wanting to put together a metal shop of some sort I
>am finally doing so. I now have a foot sheer to go along with my brake.
>Now I am trying to decide what the next tools should be ...
A corner notcher will come in handy if you want to fold up corners like
a Bud "5-sided" chassis.
And when folding those corners a relief hole, either punched or
drilled, at the corner location is a must.
>
>One of my goals is too be able to make a chassis of any size and shape I
>may need. It looks like on commercially made chassis the corners have
>the flaps "spot" welded together. Who can tell me how this is done on
>aluminum? I remember the spot welders from metal shop in jr. high school
>and spot welding tin together ... is this all that is needed to put
>aluminum together? Another possibility is to weld the corners of the
>chassis together but I fear the needed equipment to do this would be
>very expensive?
Pop (or regular) rivets or even screws, with nuts or pem-nuts, will be
easier in the short run.
>Any suggestions or help would be appreciated. If I can become equipped
>and able to turn out a nice chassis I have considered making them =
>available to fellow homebrewers.
If you are getting your aluminum surplus, it pays to run a few test
bends on some scraps before trying to make a complete chassis. I've run
across some aluminum, likely from the hulls of flying saucers, which will
NOT bend at all -- it just breaks! Plus, you'll see what allowances
need to be made for the bends.
When you get around to making a box, it helps to make a paper pattern
to figure what needs to be cut out before bending and in what order the
flaps must be formed.
73 & Happy Holidays,
Marv WC6W
*
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