On May 1, 1:46*am, "Wild_Bill" wrote:

[about clamping EMT at right angles]
With 2 tubes intersecting at right angles, and the vertical tube in the
foreground, place a long U-bolt around the vertical tube, on top of the
horizontal member, ends pointing backward.

Now if those ends were to be bent (down) around the horizontal member, in a
vise or simple fixture beforehand, they would then be pointing forward.
Add a simple strap across the front of vertical member, and 2 nuts.

This makes a stitching-on-the-baseball shaped clamp; you can make
the same contour with a plastic tie-wrap, if that's rugged enough.

Most lashups I've participated in have bolted unistrut to the wall
and connected the tubing to THAT instead of to other tubing.

Speaking of lashups, a bit of twine and BoyScout quality lashing can
do this kind of thing, too...