TIG Welding Table from Graham Burrow
For the past 15 years, I've been promising I'd build myself an
"official" welding table. At a flea market, this year, I scored
(for $15Cdn) a robust adjustable old-style computer table from the
days when computers weighed a ton. What caught my eye were the
hydraulic lift and the keyboard support hinges. It makes a good
foundation for a very adaptable welding table. Here's a preview of
the progress I've made so far. I'll put it all in an album when it's
done.
Photo 1: The original configuration. The keyboard support has two
pivot joints with locking levers and it's mounted on slides. The
keyboard arm is strong enough to support my weight - I sat on it
before buying it.
Photo 2: Shown fully up with a new top installed and an auxiliary
leaf mocked up. The top is 36" x 24" x .5" HR. The leaf is a 36"
length of 6" x 2" channel. It will be milled flat and square on
three sides before final assembly. The raised height is 34", before
adding casters. If I were doing it again, I'd spring the extra $$
for 5/8" or 3/4" CR. It was a pain removing the scale and although
1/2" will be okay for my purposes, a thicker top might be better.
It's fastened to the original framework using brass screws with the
threaded shanks ground flush with the table. The brass fasteners
should prevent them from being accidentally welded permanently. I
was careful to make sure the mounting layout is symmetrical, so the
top can be turned over if it becomes scarred with use. Still to do
is a grid of tapped holes for bolting down fixtures - with more
flush brass screws to prevent spatter build-up in the threads.
Photo 3: Fully down, the height is only 25" - good for sitting.
Unfortunately, this shot doesn't give a clear idea of how low it
sits. The tall stool is 27" high and the short one is 18". Pump-up
is fast. When you step on the pedal, and hold it, the top makes a
slow, controlled, descent until it's released - even with lots of
weight.
Photos 4 - 6: These show some of the many positions the leaf can
be set to. The height can be set both above and below the level of
the top. The gap is adjustable from 3/4" to 6" and the locking
levers and high friction joints hold the channel securely. Compare
photos 1 & 2. I re-drilled the slide mounting holes to move the leaf
to the rear.
Photo 7: This shows the underside of the stand. Clearly visible
are the two pivot/locking mechanisms, the relocated slides, and the
tube support frame.
Photo 8: This is from the rear, with the valence panel removed.
It shows the hydraulic cylinder and the load balancing mechanism,
consisting of two racks and a connecting shaft. In the upper right
corner, you can see the interleaved fingers of one of the pivots.
This presents a very large friction surface for the locking lever to
clamp tight - VERY effective!!
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