Re: Vac U Forming?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Richard Modistach" <hambone-at-dodo-dot-com.au> 

good one,
one could also extrapolate that process
to make toroidal hemispheres,
complete with the support in the centre,
to go even further, 1\2 toroid on the bottom and a
hemisphere on the top to make one of those
curved bottom dome thingys.
( hope the technical terminology  is not
too over yer heads) :p

regards
richard
aus




----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, June 29, 2004 11:08 PM
Subject: Re: Vac U Forming?


 > Original poster: "Jim Lux" <jimlux-at-earthlink-dot-net>
 >
 > ABS or Styrene work well for vacuforming
 > Heat lamps are what the little vacuformer I used to use had.  The big
 > vacuformer had what looked like an electric oven broiler element in a sort
 > of traylike arrangement above the plastic.
 >
 > For making hemispheres, by the way, the easiest way is to make a big box,
 > then cut a round hole in the top.  Lay your plastic over the top (covering
 > the hole) anchoring the edges.  heat the plastic til soft. Pull small
vacuum
 > on box (don't need much!). Presto, large hemisphere sags down into the
box.