"rangerssuck" wrote in message
...
On Tuesday, October 25, 2016 at 2:45:37 PM UTC-4, Jim Wilkins wrote:
"rangerssuck" wrote in message
...

So, the foot is spring loaded towards the board and the router to
foot distance is controlled by a solenoid? That seems pretty easy to
rig up. I'm not sure why you'd (at least I'd) need to vary the Z axis
at all. The range of widths in their bits seems to be only a couple of
mils. Seems like if you're (I'm) drawing outlines of copper, a cut's a
cut. If I need a wider cut, why not just take two or more passes? The
software for that would be pretty simple once the rest was done.

=======================

I don't exactly remember how the head operated. IIRC a stop screw set
how far the vee shaped cutter extended below the foot when the head
was down, maybe pulled by the solenoid? It could also drill the holes
with a longer stroke.

I planned jobs such that the board fab time didn't delay the project
and didn't use the T-Tech any more than I had to. Since it only made 2
layer boards without plated vias it wasn't that much better for
prototyping than perfboard, and tended to require a lot of inspection
and hand deburring. I usually needed 4 or 6 layers with internal power
planes, or RF microstrip on Duroid.

--jsw