ha, I remember those robots^ , thanks for making my feel old.

As supreme leader of the drum bots and current champion of champions within the drum bot community my advise is as follows;

The number 1 golden rule- Ignore everything Jamie says, every word he speaks is a lie or hard to understand because he's a dirty scott bag.
The second rule of drum club, is don't talk about drum club.
Third rule, plastic bad - metal good, even if its not up to Alex's standards, 6082 worked fine for me, it took a huge hit from NST and didn't fail, won me the fight... its how you mount your teeth that really matters... and in plastic they are always going to break out.
Final rule, don't base your robot around parts sold by Ellis- i wouldn't want his dangle-box products all over my machine.

Have fun.