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| Science Forum Index » Engineering - Joining (Welding) Forum » Fly wings... |
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| Ignoramus15187... |
 Posted: Sun Sep 27, 2009 5:12 pm |
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Guest
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I was making a frame for "fly wings" for a Halloween costume. The way
I made them was welding three 3/32" sticks of ER70S3 into a 9 foot
piece, then making a figure 8 from them. The figure 8 would look like
a fly wing horizontally, with a stocking over it.
The short of it is that it worked after some frustrations, related to
my ability to hold them and weld them at the same time as those
springy rods were under tension.
I would like to ask what sorts of holding fixtures do you guys use,
beyond C clamps and regular Vise-Grips. After yesterday's experience,
I would like to buy or make some more. I would prefer an emphasis on
make, such as some additions to vise-grips etc.
i
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| dcaster at (no spam) krl.org... |
| Posted: Mon Sep 28, 2009 4:45 am |
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Guest
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On Sep 28, 12:12 am, Ignoramus15187 <ignoramus15... at (no spam) NOSPAM.
15187.invalid> wrote:
[quote:114e70e4a0]I was making a frame for "fly wings" for a Halloween costume. The way
I made them was welding three 3/32" sticks of ER70S3 into a 9 foot
piece, then making a figure 8 from them. The figure 8 would look like
a fly wing horizontally, with a stocking over it.
The short of it is that it worked after some frustrations, related to
my ability to hold them and weld them at the same time as those
springy rods were under tension.
I would like to ask what sorts of holding fixtures do you guys use,
beyond C clamps and regular Vise-Grips. After yesterday's experience,
I would like to buy or make some more. I would prefer an emphasis on
make, such as some additions to vise-grips etc.
i
i
[/quote:114e70e4a0]
Vee blocks for holding round things. If you don't need them often,
you can whip out a couple out of 2 by 4 wood and kludge the clamping
using a couple of C clamps.
Dan |
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| Rich Grise... |
| Posted: Fri Oct 23, 2009 5:13 pm |
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On Sun, 27 Sep 2009 18:12:28 -0500, Ignoramus15187 wrote:
[quote]I was making a frame for "fly wings" for a Halloween costume. The way
I made them was welding three 3/32" sticks of ER70S3 into a 9 foot
piece, then making a figure 8 from them. The figure 8 would look like
a fly wing horizontally, with a stocking over it.
The short of it is that it worked after some frustrations, related to
my ability to hold them and weld them at the same time as those
springy rods were under tension.
I would like to ask what sorts of holding fixtures do you guys use,
beyond C clamps and regular Vise-Grips. After yesterday's experience,
I would like to buy or make some more. I would prefer an emphasis on
make, such as some additions to vise-grips etc.
[/quote]
I'm not a weldor, but I'd have made a jig out of a piece of hardwood
with a couple of dados (dadoes?) at the angle you'd need a few inches
away from the HAZ (heat affected zone).
Good Luck!
Rich |
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| Jim Wilkins... |
| Posted: Sat Oct 24, 2009 12:01 pm |
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Guest
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On Sep 27, 7:12 pm, Ignoramus15187 <ignoramus15... at (no spam) NOSPAM.
15187.invalid> wrote:
[quote]I was making a frame for "fly wings" for a Halloween costume. The way
I made them was welding three 3/32" sticks of ER70S3 into a 9 foot
piece, then making a figure 8 from them. The figure 8 would look like
a fly wing horizontally, with a stocking over it.
The short of it is that it worked after some frustrations, related to
my ability to hold them and weld them at the same time as those
springy rods were under tension.
I would like to ask what sorts of holding fixtures do you guys use,
beyond C clamps and regular Vise-Grips. After yesterday's experience,
I would like to buy or make some more. I would prefer an emphasis on
make, such as some additions to vise-grips etc.
i
[/quote]
I have two identical cheap drill press vises with slotted flanged
bases that work well for ad-hoc welding jigs. In this case I'd clamp
some bar stock in both to align them, attach them to the table edge,
then replace the bar stock with the rods. I use B&D Workmates for
larger pieces.
This platform stacker is quite useful for clamping assemblies to be
welded:
http://picasaweb.google.com/KB1DAL/Wheels#5271844343827153698
It adjusts to a comfortable standing or seated working position and
uprights can be clamped to the frame. It would be more useful if it
had a horizontal jib crane arm at the top to suspend and rotate the
work, but I couldn't store it where I do and it might tip too easily.
The platform is wrinkled, so when I need a flat and rigid welding
table I put a sewer drain grate on it, like an Acorn table. The grate
is an unused, cracked reject from a paving job.
jsw |
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