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I bought a flash unit but it needed some innovations to suit my shop.
As delivered, it had 4 legs on casters that were in footspace. I had made a heavy base earlier. I would need a counter-weight to keep the device in balance. The reach is adjustable by swiveling to give another parameter because I didn't know how to calculate the mathematics in this counterbalance.
The base itself rotates but that's not necessary. As factory-shipped, the upper tube simply rotates on a collar that is adjustable on the lower tube.
The heating element didn't swivel far enough into the work from a stationary position so I added 4 inches (10 cm) to the reach, adjusting the counter-weight accordingly. (I added more.)
The small articulated armature holds a PC fan for pushing air across the work surface, replacing water-laden air with dry.