We are about to find out....the idea is to use ploy carbonate but we'll have the option of aluminum if we don't feel the ploy carbonate will hold up
From a 3D Printing Company
Polycarbonate is an extremely durable RF friendly thermoplastic, often used for high-temp applications, automotive and medical housings.
Due to it's strength and temperature resistance, Polycarbonate, combined with the FDM Process, is ideal for consumer electronics, lighting, RF testing, medical housings, fixtures, fans & turbines.
Polycarbonate has a bright white, high gloss finish and is extremely rigid. The flex memory for PC and when built in the proper orientation, is very impressive. This material creates durable tabs and thin flexible flat parts when built vertically, like a profile extrusion.
It's high heat deflection of 282°F is appealing for other purposes including; Under-hood applications, sterilization, radome and antenna testing.