Thanks for the write up Greg, that was an enjoyable read! And well done on your performance at Bugglebots, you and Dave put on a fine show regardless of your placing in the competition.

Thanks also for the HDPE bending guide. I've tried a bit of it myself in the past and was pretty lazy in that I just put the stuff in a vice, zapped with the heat gun for as long as I could be arsed and then applied a moderate amount of force to bend it. Although that worked for my inaccurate purposes, now I wonder if I may have overstressed the material a bit by only heating the outsides. I'll keep at it with the heat gun next time!