Re: Dremel..Tom

Hi tom..

      I have the 5 speed dremel.. First let me say it is a wonderful
tool
especially for white metal..  however you asked

> I know the 0-5000 adjustable range on the 275 is pretty great for
working
in
> plastics and resins. But just how bad is 5000 rpm for resin or
plastic?
> Enough to justify more than doubling the price? Or should I just buy
the
> variable model 395?

pretty damn bad...?=0) I do lots of work converting the BFG plastic
cruisers
and I drill all the holes by hand.. Part of the problem is not just the
heat
but the fact that the plastic clogs the flutes of the drill and then
destroys the hole via friction and non clearance of the swarf.. even the
slowest speeds on the 5 speed will destroy even the hardest plastic.. I
do
also have a French minidrill that I use with a variable voltage
transformer.
it is better for plastics but you still have the problem of flute
clogging..
however if you try the variable speed control please say how you get on!

	  Bob DeAngelis
----- Original Message -----
From: "Barclay, Tom" <tomb@bitheads.com>
To: "Gzg Digest (E-mail)" <GZG-L@csua.berkeley.edu>
Sent: Thursday 11 de January de 2001 19:33
Subject: Dremel

> Hi,
>
> A quick question. I've been looking at Dremel tools. I seem to be down
to
> two models, the 395 (variable speed) and the 275 (single speed) with
an
> additional speed control pedal. I thought I had decided (275+pedal).
>
> Stats:
> 395: 5000-30000 rpm, adjustible in increments, adjusted on the tool
> 275: 30000rpm (28000 in some literature), no adjustment
> 275 + pedal: 0-30000 rpm, adjustable I believe infinitely via a
> rheostat/varistor type of pedal control
>
> Now, the reason I had lined up the 275 as my choice was, with the
pedal, I
> can adjust speed while working AND perhaps most importantly, I can run
the
> device below 5000 rpm for working with resins or plastics that don't
like
> heat produced by high rpms.
>
> However, the 275 was about $65 Cdn ($40-45 USD). Home Depot wanted $96
Cdn
> ($60-65 USD) for the speed control pedal (damn expensive
> potentiometer/variable resistor). I thought that was insane. I can get
the
> variable speed 395 for less than $70 Cdn also.
>
> The question is:
>
> I know the 0-5000 adjustable range on the 275 is pretty great for
working
in
> plastics and resins. But just how bad is 5000 rpm for resin or
plastic?
> Enough to justify more than doubling the price? Or should I just buy
the
> variable model 395?
>
> Thoughts from those who have such tools or similar ones?
>
> <Note, I've also considered buying a 120V rotary dimmer switch and
splicing
> it into the powercord of a 275 to create the same effect for $10.00
(mind
> you this assumes the pedal is just a variable resistor, which I think
it
> is). It'd mean I couldn't control the speed by foot control, but it'd
be
> about $80 Cdn cheaper...if it works>
>
>
>
>
>
> ------------------------------------------
> Thomas R. S. Barclay
> Voice: (613) 722-3232 ext 349
> e-mail: tomb@bitheads.com
>
> 2001: To the New Millenium! The next thousand years
> are MINE.
> ------------------------------------------
>