great device, probably will make one myself if i can get around to it. also, i think you spelt Pedometer wrong the second time.

Posted at 1:47 am on Oct 14th, 2007 by tony

pedometers are great.
the local dollar tree has them for…. a dollar!
they’ve got a simple mechanical “swinging weighted arm” switch, so it’s really easy to interface with it.

i used one for a frame counter on a super 8 camera. another mod i saw for a frame counter used a calculator: set it up so that each time the “=” button is pressed, repeat the last operation. so “plus one” was the obvious counting operation.

but seriously, if you can find them for a buck, stock up because the need to count things (quickly, or lots of something, especially) comes up a lot.

and you get to play a game trying to walk less every day. heh. am i doing it right?

Posted at 3:23 am on Oct 14th, 2007 by joelanders

looks pretty ingenious, i like the use of the pedometer. dosent seem to mention anything about wire tensioning, but i guess thats done by hand as its wound.
built a coil winding device for guitar pickups sometime ago, and trying to maintain constant tension on 42swg wire was a horrendous task.
*shudders at memorys of steel tubes and springy things with pulleys on*

Posted at 6:16 am on Oct 14th, 2007 by hitch

I’ve also seen a cheap pocket calculator used to count events, type “+1″ then rig your switch to the “=” key. Might not work on all models, though.

Posted at 7:01 am on Oct 14th, 2007 by Alex B

If anyone is interested, I did a software based (free) coil wind counter a few years ago. Look at the “Wind Counter”: http://pickups.myonlinesite.com/programs.php

Input is accepted through a 9 pin serial port, and most people utilize a a reed switch to trigger it.

Posted at 9:56 am on Oct 14th, 2007 by Adam Ziegler

Cool machine! When I created my homemade speaker, I had some trouble to make the coil. I hope I can build a coil winding machine and improve my speaker.

http://www.josepino.com/other_projects/index?homemade-hifi-speaker.jpc

Posted at 11:09 am on Oct 14th, 2007 by Jose Pino

Having built a lot of coil winders, I find it much easier to do this using power: drill a hole about 5″ in from the end of a mandrel, put a couple of 3/8″ sealed bearings (like from newer bicycle hubs: they can be thrashed) on the mandrel, clamp the bearings in the vice, and put a power drill on the one end of the rod. Stick a piece of wire through the hole and spin it up. You can use a pedometer or a rotation-counter. It’s way faster and easier on your wrists than using a hand drill, and after the first million windings, your wrists will thank you. Wear a glove on the hand guiding the wire onto the winding: if you get any skin caught between the wire going onto the winding and the winding itself it’ll just clip that chunk of skin right off and that leaves a big nasty hole.

Posted at 4:16 pm on Oct 14th, 2007 by John Bump

Coil winding by Dr Electro
http://www.metacafe.com/watch/490188/easy_coil_winding_by_dr_electro/

Posted at 6:59 am on Oct 19th, 2007 by Dr Electro

Coil winding video

http://www.metacafe.com/watch/490188/easy_coil_winding_by_dr_electro/

Posted at 8:33 am on Oct 19th, 2007 by Dr Electro

Maybe not quite as hack-y, but a bicycle odometer would work quite well. Cheap ones are triggered by a mechanical cam-and-gear, higher-end ones by a magnetic trigger that you could glue (or merely magnetically attach!) to the crank gear. I also like Dr. Electro’s spinning reel winder; or a sewing machine bobbin winder would do a great job on smaller coils.

Posted at 1:26 pm on Nov 20th, 2007 by Geedavey

i have one genset capacitor induce type. my question is what happen if i change capacitor value from 20uf 300vac to 40uf 300vac.

Posted at 6:34 pm on Aug 25th, 2009 by ardinordin