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Coil Winding Machine
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From: Chuck Curran [SMTP:ccurran-at-execpc-dot-com]
Sent: Monday, June 01, 1998 7:48 PM
To: Tesla List
Subject: Re: Coil Winding Machine
Mark:
I have had to build two different winding units over the last two years.
The units were both powered by DC motors attached to gear reduction boxes.
I simply built a wooden frame and used the gear motors to drive a shaft
which a slid through the length of the coil form. A simply drive bracket
was attached to both the shaft and then to the end of the coil form. The DC
motor was driven by a DC supply in the first case with the voltage
controlled by a autotransformer, to vary the speed. The second unit was
larger and a variable speed drive was used.
The difficult part is locating all the parts at a reasonable price and then
assembling the components. The winding is very simple, even when hand
feeding the wire. I mounted the roll of wire on a wooden form that would
allow it to unroll and then just guided the wire by hand. It is very easy,
once the unit is set up. I chose to employ a foot switch in order to have
quick on-off control of the winding.
The shafts that I mentioned above could be wood or steel tube or steel bar
stock like I used due to the weight of the form being wound. The gear motor
was the bearing on one end, and a mounted bearing, referenced as a pillow
block here in the US, was used on the other. I do have digitized photo's of
the last one that I did two weeks ago that I could send you if there is any
interest. Let me know. I could babble on for another page or so, but I
better stop and just let me know if this is the type of information you
need!
Chuck
-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: 'Tesla List' <tesla-at-pupman-dot-com>
Date: Monday, June 01, 1998 1:48 PM
Subject: Coil Winding Machine
>
>----------
>From: Mark Conway [SMTP:mconway-at-netgate.co.nz]
>Sent: Sunday, May 31, 1998 4:56 PM
>To: Tesla List
>Subject: Coil Winding Machine
>
>Hi Everyone,
>
>At the moment I am just about to rebuild my secondary on my solid state
>coil. The secondary I have at the moment is a plastic rubbish bin wound
>with 0.25mm enamel wire. It has given great service (I get arcs about 12
>inches long out of it) but I am now starting to get arcs coming out of the
>side of the coil (caused by not always being in tune - this semiconductor
>coil is very sensitive to the environment it is in- I can stop it from
>arcing by simply moving my hand to a different position). These arcs have
>caused a bit of carbonisation.
>
>Anyway, last time I wound the secondary it took me about a week to wind the
>kilometre or so of fine wire onto the bucket. This time I would like to
>automate the process. Anybody have any ideas about how I could do this? I
>can get access to a lathe but I dont really know how to set it up to wind
>the coil - any advice? Has anybody out there built an automated coil
>winding machine?
>
>Best Regards,
>Mark
>
>
>