RE: Coil Winder (fwd)

---------- Forwarded message ----------
Date: Sun, 10 Oct 1999 13:55:18 -0400
From: "Lau, Gary" <Gary.Lau-at-compaq-dot-com>
To: 'Tesla List' <tesla-at-pupman-dot-com>
Subject: RE: Coil Winder (fwd)

Easier than that, I just chucked a threaded rod going through the secondary
form into a hand drill, locked the trigger into the full-ON position, and
powered the drill through my variac.  This allows complete control over the
speed and cost me nothing.

Gary Lau
Waltham, MA USA

		From: "Dr. Resonance" <Dr.Resonance-at-next-wave-dot-net>
		To: Tesla List <tesla-at-pupman-dot-com>
		Subject: Re: Coil Winder (fwd)

		It's easy to make your own.  Buy a 15 RPM gear motor from a
surplus house
		such as Nebraska Surplus or Fair Radio Sales (approx $25).

		For endplates to couple to the motor use standard pipe
flange mountings
		available from any plumbing shop or supply house.  Most of
these have 4 bolt
		hole patterns.  Use 1/2 inch pipe (1/4 inch pipe for small
coils up to 4
		inches dia) to form the vertical holder and some oversize
scrap bearing
		blocks which attach to a pair of sawhorses.  These form your
holder system.
		They bolt up to a 3/4 inch circular piece of plywood which
form the winding
		endplates for your coilform.  Cut them for tight fit and tap
into the coil
		form end with a mallet.  We also usually drill 4 small holes
at 90 degree
		spacing and tap in 4 small finishing nails to secure the
endplate to the
		coilform.  These are later removed and the holes drilled out
larger for
		1/4-20NC nylon bolts which form the fastener system to
attach the finished
		endplate to the coil after winding is completed.

		Hook up a small control relay and surplus footpedal (allows
handfree control
		of the motor) to the gearmotor and you are ready to wind
away.  It's simple
		and works on coilforms from 2 inches up to 24 inches in
diameter.   The coil
		is supported between the sawhorses for winding.

		Dr. Resonance