HDPE/Acrylic/Nylon/RG1000

[Roboteernat]

If your 'acrylic' took a huge wallop, and you only think its acrylic as it was a clear plastic, then your probably thinking about Polycarbonate.

Polycarbonate, or PC, is used in police riot shields, Beta (Killerhurtz) chasis, bus stops panneling, public stands, displays and more importantly, Robot wars and robot fighting arena walls.

It takes a huge beating, and due to its properties is expensive.
Although it can be easily cut and drilled, it is more expensive than the others.
I bought some 4mm for an antweight arena (Swindon makerspace) and it cost £150 for some large sections, but it was only 4mm. you would need 6-8mm depending on what you are planning. - i bought this from http://www.cutplasticsheeting.co.uk/

[lowndsy]

Was the "acrylic" flat on a surface, or unsupported?