[Prev][Next][Index][Thread]
Re: Polyethylene Washers ?????
I have made polythene washers similar to this at work. I was able to
scrounge some thick polythene sheet, and simply used a tubular punch, or in
some cases a cork borer. You can make a similar device by cutting a piece of
steel tube of sutable diameter and then sharpening the edge of one end. The
simply place the punch on the sheet and give the other end a hefty wallop
with a hammer.
----- Original Message -----
From: Tesla List <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, December 14, 1999 12:48 AM
Subject: Polyethylene Washers ?????
> Original Poster: gweaver <gweaver-at-earthlink-dot-net>
>
> Does anyone know where I can buy some polyethylene washers?
>
> I have looked in McMaster Carr, WW Granger and a few other places and have
> found plastic washers but can not find out if they are differently made
out
> of polyethylene.
>
> I am building a simple industructable capacitor using a fish aquarium,
> several metal plates bolted together with all thread polyethylene rods,
> polyethylene hex nuts, polyethlene .125 washers as spacers between the
> plates and about 3 gallon of high voltage oil.
>
> Wonder if some other type of plastic washer would work?
>
> The flat washers need to be .125" thick or 2 washers in a stack .0625"
thick
> each. Hole diameter can be .187" or .250". Outside diameter is not very
> important as long as all the washers are the same.
>
> If this works as well as I think its going to then I will have some round
> metal plates laser cut to fit the inside of a 4" PVC pipe. Then
capacitors
> can be made any uf value I need just by using the correct number of metal
> plates. Fill it with HV oil and glue on the end caps with electrical
studs.
>
> Gary Weaver
>
>
>
>