Can someone explain how to make one of these magnetic thread tensioner? Thanks.

G'Day John I use magnetic Tensioners on my wrapper .I use 2 ring magnets with the magnetic poles axially opposed .They have a 6 mm hole in the centre & fit on a 6 mm stainless steel rod the magnetic force is opposed to put pressure on the thread spool & my locking system is a 6 mm drill stop & locked on with a allen key .I run my thread tension at 101 grams purely because I find that it's tight enough to stop the guide being knocked out of position & loose enough to move if I have to .If you like drop me an email & I can send you some photos .I've found this system to be better than the friction setup I used to run

Regards Baz

Bundeena
NSW Australia

Barry,
Hi.
I have the commercial one that uses various thickness paper between the two magnets to allow the tension to be adjusted. But I think I like your idea better and would like to experiment with it.
I will send you my email also if you don't mind.
Herb

See Richard Sprouls' post here:
[rodbuilding.org]

Jerry,
Thanks.
Herb

Barry Chapman Wrote:
-------------------------------------------------------
> G'Day John I use magnetic Tensioners on my wrapper
> .I use 2 ring magnets with the magnetic poles
> axially opposed .They have a 6 mm hole in the
> centre & fit on a 6 mm stainless steel rod the
> magnetic force is opposed to put pressure on the
> thread spool & my locking system is a 6 mm drill
> stop & locked on with a allen key .I run my thread
> tension at 101 grams purely because I find that
> it's tight enough to stop the guide being knocked
> out of position & loose enough to move if I have
> to .If you like drop me an email & I can send you
> some photos .I've found this system to be better
> than the friction setup I used to run

Barry,

Thanks, I'll send you my email address. Sounds like exactly what I was looking for.

Consider a set of precisely calibrated weights, the desired one of which could be attached to a bobbin full of winding thread near the floor with the wrapping thread passing through a pulley on the ceiling. That would provide the most precise, unvarying thread wrapping tension, bar none.

I have a spring so I can back off the thread and still keep tension on When wrapping if the thread goes from the eye too the rod and is streight it has more then enought tension

In other words test and you will figure out how things look when tension is GOOD You will have to learn the machine

Bill - willierods.com

If you would like to drop me a line at docski377@aol.com I can also send pictures and links to where you can get some really powerful magnets. Been using them for quite some time and really love the set up ----- very smooth. I have three set ups, two with 5 stations and one with three. Also have one that holds 8 spools that fits on my powerwrap and my alps.