>... Would
>soldering iron temp affect the spring ? There is space in that area for the
>bulking. Or learn to make a spring from scratch?
>
No temp of soldering iron won't affect it, but spring steel is really,
really hard to solder.
I'd make one from scratch, you can buy the material at a *good*
hardware store (spring wire, AKA piano wire) in various dimensions.
Wear safety glasses when working with the stuff, just in case it
breaks while bending.
I would never 'rig' something like you suggest. I've done it before and
almost always ended up with a rerun. You can make a spring if you can
figure out how to temper it.
--
Live Fast, Die Young and Leave a Pretty Corpse
Purchase the proper annealed spring steel from a place like this and
make your own http://www.meadmetals.com/annealedspringsteel.htm
Tascam is pretty good about parts on older models...
Mark Z.
> Or learn to make a spring from scratch?
You can buy spring wire at a hobby store. I don't know what they use
it for, maybe to push airplane flaps back.
The small diameters were under a dollar for 18 inches. I don't
remember how thick they get.
I'll have a look around hobby and hardware places - I've never come across
it anywhere.
>Some valve retaining clip spring wire was the right 0.9mm diameter.
Great. I'm glad you got it.
FTR, they undoubtedly had that diameter at a hobby store that sells
this, for under a dollar a piece.
When I thought you might need something bigger than what you are
using, I had in mind 3 mm. thick. I must have beeen thinking about a
different part, or the same part from 40 years earlier. :)
>Interesting seeing the formed torsion spring unwind a bit in the heating
>stress-relieving process. Hopefully my third attempt will work and not bind
>on the turns area, got all the angles now and right mandrel but the turns
>have to seat in a recessed and hidden hollow.
I haven't done any heat treating yet. I was still trying to get it
to go over the hinge pin on my 42-inch high picket fence gate, and
also rest agaisnt the gate and the post which has the hinge, so it
would close the gate. It got hard to fit, so I went back to using
the very heavy duty spring that was on the fence when I bought the
house, but I set it very loosely; it doesn't slam; and it won't make
the gate fall apart like I think it did the last time. For years I
didn't use a closer at all, but I'm hoping to go away for 2 or 3
months and I think it would be better if the gate were closed, even
after the mailman comes. He'll shut it if I ask him too, but this is
simpler or more reliable.