How to do this one

[Metal1]

Attachment 30933




Looking for some ideas on how to make this piece. I Think it's 24 guage the roll is hollow and is less than 1/8 inch. I need around 3 ft. I have a pulmax but being so small and thin I don't know how well it would work.

[AllyBill]

I've made sections like that for aircraft control surfaces. I made mine by rolling half of the shape then rolling again with a wire inside. Had to make up some dies and getting the wire out was interesting until I got the hang of it but it worked for me.

Will

[MP&C]

http://www.steetz.com/index.php?page...hk=1&Itemid=19


Look at wiring wheels "V" and folding wheels "ZA" and "ZB".

[Truckntran Bill]

Originally Posted by MP&C

http://www.steetz.com/index.php?page...hk=1&Itemid=19


Look at wiring wheels "V" and folding wheels "ZA" and "ZB".

Am I reading those prices correctly for a pair of bead roller dies?? Wow!

Good information for those who can make their own dies....thanks for posting it.

[AllyBill]

Does it have to be a 3ft continuous length or lots of pieces that add up to 3ft?

Will

[Bob]

I've made short sections similar to that by pressing the circular shape after I opened it up into two halves. So the first press I had 1/2 of the circle you have, 1/4 circle on each side of a depression. The flats would be defined in this first pressing. Then I closed it up in the press halfway between the 1/4 circles as much as I could with a die made to match the circles radius. After I got that far, I closed it up the rest of the way in another die made to hold the circular shape and iron out the flats. I never used a rod inside, but I thought I might have to.

So replace my press with your pullmax and do something similar. If you have a cad package, you can do the 3D model of the dies in it. Add a guide for your strip in the first set of dies. The rest should just follow the partly pressed part.

I'd offer some drawings of it but my cad system is pi**ing me off right now and I don't care to use it until it's installed in a new computer. This might be tough to follow just by the written word, but it's just progression forming the circle.

[AllyBill]

I've made short lengths by rolling the material around a wire in the bender then hand-finishing over the edge of a piece of polished stainless with a little jeweller's hammer but 3ft continuous length would be a challenge.

[MP&C]

Originally Posted by Truckntran Bill

Am I reading those prices correctly for a pair of bead roller dies?? Wow!

Good information for those who can make their own dies....thanks for posting it.

They are made by FASTI-werks (if that's still their name) for their machines. They also have a pretty stout powered version and IIRC, uses the same tooling. I bought my manual FASTI used off Craigslist, and paid 600 for it and a good dozen or so die sets. Looking at those prices listed, I made out like a fat cat.. The pictures in the link also helped me to find out what some of my mysterious dies were actually for...

[Marc Bourget]

[QUOTE=Truckntran Bill;108856]Am I reading those prices correctly for a pair of bead roller dies?? Wow!

Note that the dies are made of tool steel. Tool Steel prices have gone way up since I built my last injection mold. Process usually takes more steps, including heat treat, than those made from, say 4130. I suspect a healthy profit but not a rip-off.

I learned a bunch from watching the videos and enlarging the die pictures.

FWIW

mjb