🚀 go-pugleaf

An old 16mm film projector is fairly close to what you need...
or any old 3 motor audio recording deck


On Sun, 27 Sep 1998 00:41:01 -0400, "Doug Danielson" <wddanie@ibm.net>
wrote:

>I need to find or build a device to unwind and wind a 500 ft reel of 20
>guage bare wire. It needs guide rollers to create a straight length of wire
>6 to 12 in. long where we will use a flame spray nozzle to apply a coating
>to the wire. The general layout would look like a reel to reel tape
>recorder, with the flame replacing the magnetic heads.
>
>The wire needs to move at a constant speed past the flame, at rates ranging
>from 1 to 60 in/min. The wire needs to remain under tension to keep it
>straight between the guide rollers. The drive mechanism cannot gaul or mark
>the wires surface, since this would disrupt the coating.
>
>I hope to find the whole device off the shelf, but if that is not possible,
>I would prefer to by some sub assemblies such as the guide rollers so that I
>minimise the portion I must create from scratch. If I have to build it
>myself, I need some advice on the motion controller to drive it. I would
>prefer one that can monitor an encoder that measures the shaft speed of one
>of the guide pullys, and adjust the spindle speed to keep a constant wire
>speed and tension as the wire pays off the reel. Can someone recommend a
>motion controller that can do this? I would prefer to use a stand alone
>controller and send it a 4-20 ma signal to set the wire feed rate, but I am
>using Labview and could use a Valuemotion board in the PC to drive the
>motors.
>
>Thanks in advance for any tips,
>
>Doug Danielson
>Atlanta, GA
>
>
>