Tommey Reed's Custom Coil Winder

[TommeyLReed]

Hi Dog-One,
I was thinking just that, also maybe a thin flat flexible plate to keep the wire from jumping also.
Tom

[Dog-One]

Yeah, when the wire jumps, no amount of precision stepper control can recover, at which point a beautiful spool of copper turns to crap.
Because from that point on, the wire is no longer in the same position as the stepper.

If you use a tube and just lay the wire right where it needs to go, almost no tension is required.  The finished bobbin will be solid
as a rock with no gaps or bumps.

Years ago I added a fourth stepper to my CNC machine for winding coils.  I wrote a program that would take wire and bobbin
parameters, then spit out Gcode I could send to my machine.  Everything worked good except for the darn tube.  I didn't use
one and it showed.  Some wire would still wind pretty good, but most would jump someplace and leave a less-than-perfect spool.

If you'd like, I can dig around a little and see if I can find that program, might be helpful to you.  You would probably want to
rewrite it anyway, but some of the math in there may save you some time.  I was actually surprised how well a CNC machine
can do things like this.  Certainly nice to not have to design everything from scratch or make a single purpose machine.

[SolarLab]

Hi Tom,

Pretty cool Coil Winder project your building.

Attached an old Windoze program called GCoil 1.4 (inside the GSuite 1.4.3 rar). Couldn't find it
on the internet anymore. I still use it now and again to wind a quick coil on the CNC Lathe.

Has a pdf readme and the Source Code. Thought it might be of some value or interest.

Also, I use these "Closed Loop Steppers" sometimes - if I'm concerned about loosing steps. [~ $27US complete]
https://biqu.equipment/products/bigtreetech-s42c-v1-0-42-stepper-motor-closed-loop-driver-board-with-oled-display

Good Luck and great work!

SL

PS - once you check out the "Closed Loop Steppers" manual (drivers and micro built in) it brings up some interesting
stuff - w.r.t. building stepper mechatronics and other electromechanics.
http://www.t2cnc.hu/downloads/Bigtree/Manual.pdf

[TommeyLReed]

Hi All,
Update on this fun coil winding project.
https://www.youtube.com/watch?v=G0QVBsrlaoA
Tom

[TommeyLReed]

Hi All,
This is a test run on the coil winding machine.
https://www.youtube.com/watch?v=z1weVlcF-E8



Tom