as a guide Husky i just bought a 8×4 foot 2mm thick sheet of aluminium for $120.
so if you go to a metal work shop that uses alum. with the diameter of the disc(s) you want they’d probably only charge a couple of $$ for the alum. and a few $$ for labour.
i’d offer to cut some for any that would want some but ATM i only have a jig saw and the finished product is not that flash :blush:
however if someone does want some cut i can get a price from a local shop to plasma cut some.. i’d prob. recommend 3-4mm over 2mm though just to be on the safe side, i feel the 2mm stuff may tend to bend too easily.
but if someone can have a look at the ones they have and let me know thickness and are both sides the same diameter??