Re: Scoring Glass and Toolpath Solution
What about using a diamond engraving bit which is a tool with a diamond point which you can use to score along a toolpath, as the point is in the center there is no offsets required, try googling diamond engraving bit to see what I mean. https://www.amazon.co.uk/Dremel-9929.../dp/B00004UDJU
The one I have shown refers to it as a rotary tool but it doesn't be spinning when you are drag engraving, I've used these bits to engrave names into the clips of pens held in a spring loaded holder so you don't have to be to worried about exact height.
In fact I had forgot I had it and I also do some stained glass work so must try it myself sometime
I'll get it finished sometime after I start it.....