I am about to attempt a dial using the technique you demonstrated several years ago at the Tuscon conference. I know I have to glue the paper sheet onto the stone and end up sealing it in urethane but can't find your instructions and don't remember the sequence. Do I seal the stone first with urethane and then glue the paper down and then seal the paper? Would you remind me the sequence of polish, seal, glue seal?
I was able to catch two of the workshops at the Chicago NASS conference. Steve's demonstration of how to lay out an ellipse on the ground using nothing more than a rope and bunch of pegs was really fascinating because it was basically a simple exercise in straight-edge and compass geometry just like we were taught in 7th grade and it was a revelation to see how accurately things like bisecting a line, dropping a perpendicular and so forth can all be done with a rope and it shed light on how the Egyptians and Romans would be able to lay out their buildings without need for a transit or sextant.
At the 3D CAD workshop there were about a dozen of us, each with a workstation trying to rotate angles and planes through space and create a dial surface. At one point I pretty much lost it when my sundial turned into something that looked sort of like a chrysanthemum with a wedge shaped piece flipped out at an odd angle. Looking around at the other students' monitors I saw that I was not the only one and was reminded of the classroom scenes in the Harry Potter books where the students get their magical transformations all screwed up with ludicrous results.
Jack
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