Re:Show HN: I Designed and Built an eBike
by gkasev on Thursday February 24, 2022 @03:29AM
(#30452246)
I used 4mm thick, black anodized aluminum plates. I'm not a machinist and do not know the specifics of your CNC machine, but you will most probably have no problems machining these plates.
(Sorry if that's answered in your linked post, I skimmed it perhaps a little too quickly...)