Trifilar Coil Jig

What do you think about this video?

Csab: Very nice build thanks!

NasGaming92: lol gj well thinked that calculator will do the same :D

Bill K: Cool!! This will work great for a tattoo machine coils. I would suggest for the single coil spool to have a bottleneck plate with 2 rubber door stops to create drag. Or at the end of the all thread where the spool is mounted, or you could create drag on the shaft. With PVC pipe & a lock nut ! Bill Kearney. :-)

Bobby Tectalabyss: Smart very smart. Way to go !! Thank's for sharing. Tec

Myron Breeding: Just finished with my coil jig winder and I sure appreciate all the info you had on your video to help me build one also. Thanks again and keep up the good work.

codygillespie: thanks! You are right, many improvements could still be made. I get my wire from magnet4less, google it.

Helmy Yehia: good clip

redclaw4444: your twisting idea is brilliant. I got feed up with trying to find out a way to do it the way i had my set up. So i just did to parallel and was more careful and slower.

Jecha666: calculator... uahahah

codygillespie: @JRBeaman Well as far as function its not something that would always be required. Mainly it helps keep distributed winding capacitance even. Also for practical reasons it helps keep the coil compact and tidy.

codygillespie: @Shanjaq Excellent mechanical observation, i do have it protected : )

Gary Graham: Nice work on the winder. Watch that calculator though... I had one that would not keep up with the drill motor.

Joseph Germany: lol I wind transformer coils for a living. The biggest coil I ever wound was a 833 kva. It weighed over three tons after I got the core irons and frame on it. Good video. Wish I knew what a trifilar coil was for. I have plenty of wire and aluminum to make coils out of, But I really don't know much about them other than knowing how to read a data sheet and wind a coil from it.

FireBirdsGo: Your coil winding jig is truly brilliant. Very well done! I am inspired.

binarybox2003: Well explained. I like the counter and the overall control gets the job done and the rewinding to get a neat job is a good idea. Tnx 4 posting.

codygillespie: I would like to correct my self here. I was reading over bedinis info again and found his reason for twisting the wire. He says its to evenly distribute the capacitance of the coil. Coils can have inductance and capacitance, just one more sign to me that these motors operate with resonance.

Inventor Gadget: haha creativity at it's finest! Wow i was just tihinking of how to get a trifilar made correctly and look , i just fund a perfect demo :D

JRBeaman: Explain why twisting two wires together helps your circuit, or any coil, for that matter, please.

77GSlinger: freaking brilliant! Thank you!

tatter0035: Cool Video

Sutthi Rungsrirattanawong: Try using smaller hole less then 1cm on the feeding side & increasing distance between winding spool & the feeding spool further apart (50cm++) once the first layer is done nicely, by controlling the right speed the following layers will be auto arrange

kurdishmob: kholy crapz. ur da man.

codygillespie: @JRBeaman I would agree with that if you are running the filars in series. But when using each filar individually I would say it can help ensure each wire has identical L and C characteristics. I would also agree that you could make a coil smaller without the twisting, but in practice ive found I usually end up with a rats nest when dealing with untwisted multiple wires, but sure it could be done. Ive never had any problem with short circuiting. I would say do what ever works for you.

GHOSTTOYS: ingenius hahaha

codygillespie: google magnet4less

Shanjaq: Very handy! Hope you have a piece of Teflon tape on that equal button!

rockethead555: Hello!, good design . . i was coming up with something similar but never thought about the three coils mounted in a circle like that. . haha smart trick. Anyway talking about number of turns for a given Inductance and a given wire length for a predetermined "dc resistance", i see it would be hard to determine with the twisted wires approach say for a bifilar or trifilar because that design uses more feet of wire versus straight turns of wire.. so how would you calculate the L for this ? thanks

vid009: Best coil winder idea I've seen so far, great job

dodoshlodo: great Jig! why does BEdini twist his wire aswell? I made a jig myself the other day, check it out: watch?v=E0SHRLbdGVY

JRBeaman: @codygillespie I would expect that twisted windings would actually take up more space than conformal windings. The purpose of winding layers in bifilar or trifilar method is to reduce self inductance characteristics and actually increases the capacitance to help compensate for back-emf characteristics which could damage semiconductors. The twisting has me baffeld as I see no advantage & could cause potential concentrated mechanical stress points for potential short circuiting in the windings.

Marneus Calgar: Very well done sir :)

codygillespie: Thanks Rob! A little scroungin and you can make it very cheap, i did. As far as selling coils, i cant stand people who are always trying to sell crap and i refuse to be one of them. I encourage people to get their hands dirty and do the work themselves, you learn more that way : ) thank you for your comments, cody

blenderfreak112: What awg is the wire?

myself248: Two dimmers to get the right twists-per-length ratio seems awkward, and since the diameter of the takeup spool is constantly increasing, it's something you'd have to be adjusting the whole time, right? Using a capstan would eliminate that problem, and then the takeup spool could be driven separately. Consider a gearbox (from a mini-lathe?) to allow a single motor to drive the bobbin turntable and the capstan at a fixed ratio to each other, for more consistent twist pitch. Nice work, though!

codygillespie: Thank you InventorGadget! This michine does work but i might point out some improvements that might be made for an ultimate machine. Its difficult to get the motors running at a consistent speed together, a better system would have only one motor with two different gearings coming off it for the winding part and the twisting part. That way no matter what speed its running at you always have the same number of twists per inch. That idea was given to me by a friend, Good luck on your winder.

Gort Newton: Very nice. Love the simple arrangement, and it is very effective. What do you use the trifilar windings for? Also, a spring-loaded tensioner between the lower coils (the feed coils) and the take-up spool can make the winding neater.

coilsinamotor: were did you get your gient spools of wire?

codygillespie: i believe i was using 18 gauge in the video, but you could use whatever size you need.

Myron Breeding: Excellent video. Have been looking for something to wind some large trifilar Bedini coils and run across your video. Took a lot of your ideas and I am in the process of making myself one a lot like yours . Thanks keep up the great work.

Andrea Ganora: Really brilliant and smart idea the way you made the turns counter using a calculator, thanks 4 sharing

codygillespie: google magnet4less go to that website and find magnetwire

spike2fei: were did you buy the wire I need some of that

Matei Bogdan: it's like the gear wheeles the little one is spinning faster and the big one is spinning slower . same is the principle at bycycle the report is 1 turn at the foot wheel and 5 turns at the drive wheel. To pedal slow and go faster. Excuse my bad english!

electrician725: U 100% right!!!

codygillespie: thank you

Sutthi Rungsrirattanawong: Nice! When i put together mine, it took me sometime to figure out what to use for counting,after squishing 1calculator & 1keyboard i ended up using a "thumb pressing" counter. together with a few bigger hole washers (place them off-center) as trigger. it can count up to pretty high RPM without miscount, and can withstand harder beating from the drill's torque.

electrofly23: for a counter I used a digital pedometer from the dollar store - I wired in a reed switch and put a small magnet on the motor shaft. For speed control I used a footswitch from a sewing machine - it works like a gas pedal from off to full speed - no need to use a dimmer.

Grieverjoao: When i saw your counting system i laughed so hard OMG. It´s a very cleaver method and its easy to use. NICE.... 5 stars!!!

1stfreestuff: the use of the calculator for counting is brilliant!

Ben Silva: this is pretty freaking awesome

Trifilar Coil Jig 4.9 out of 5

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