Do these sprockets need to be hardened at all after they are cut? I run a laser cutter as well and have thought about making a custom one for my bike, but I was concerned that the sprocket wouldn't be strong enough and would get worn down too quickly by the chain. I considered using hardened plate to begin with, but I thought the heat from the laser cutting would soften the edge of the material slightly, so the sprocket would need to be heat treated afterward anyway.
Also, do I need to have a beveled edge like a stock chainring? Maybe I'm just thinking too much into it.
I looked at new ones on line and the only thing that is beveled is the tip of the tooth.