please educate a newbie

[BeligerAnt]

Polycarbonate is a little difficult to glue successfully. Nuts & bolts are better. Superglue weakens polycarbonate over time, so best avoided. Epoxy works OK, remember to roughen up the surface of the plastic first to give the glue something to grip on to.

Shape is in some ways more important than thickness. 1mm will stand up to most spinners if it doesn't present an edge for the spinner to catch. Conversely, many spinners will make short work of even 2mm if they get a decent angle of attack.