What's needed for a 3d printer build??

[Neale]

Yes - it just depends on whether you have access to a glass frosting solution or happen to know a glass-worker with sand-blasting kit! Although in my case, the heatproof glass I bought just needed little plastic feet scraped off and it was ready to go. Very minor problem is that there is a pattern of narrow unfrosted lines in the otherwise frosted surface which comes out on the printed parts, but there's enough frosted to ensure good adhesion while printing. What's not obvious is that you have to do a lot of playing around with print speeds, extrusion rates, layer heights, hot end temp, etc, before you start getting halfways-decent prints. There are a lot of interdependent parameters to be played with, maybe even more than for CNC routing. Very satisfying when you get there, though.