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View Full Version : large DIY "third hand"



Michael Moore
06-02-2010, 02:43 PM
Lazze, an SF Bay Area panelbeater, scaled up one of those little "third hand" soldering aids to hold fenders and other parts. It looks to me like it would be a great addition to a welding bench. You could substitute a welding magnet, v-block or other tool to the end of an arm.

http://www.eurospares.com/graphics/Tools/Lazze3a.jpg

http://www.youtube.com/lazzemetalshaping#p/u/8/OnpOa9WtF7o

Is a video by Lazze talking about how he built his third hand setup.

Enco has a pack of 25 1" OD carbon steel balls for about $16.50. Lazze used his TIG to attach the balls to the arms, but they could also be drilled/tapped and arms made that screw into them.

ETA: using a knob or lever instead of a plain SHCS at the clamp point would eliminate the need for a hex wrench.

cheers,
Michael

dp
06-02-2010, 04:13 PM
That is cool enough to have an SKU number.

Michael Moore
06-02-2010, 04:48 PM
Making one would be an excuse (as if one was needed) to build a ball-turning attachment for the lathe. :)

If you put some small welding-rod loops near the pivots you could hook bungee cords between the arms to apply some tension to a part.

This is another one of those "I've seen those little ones for decades, why didn't I think to make a big one?" things that can make you feel so dumb when someone else does something "obvious".

cheers,
Michael

Boucher
06-02-2010, 05:07 PM
That concept could also be used to make a rather nice light arm for machine lights.