We have webstore where clients order custom length products that we cut with saw.
Idea is to select number in the webstore backend, right click it and send saw stop to that location.

Is there this kind of product available?
Would like to order this kind of product. How hard is it to code?

Mach3 / Mach4 ?
in witch format are the data avaliable ? (Example)

Thanks for the question TPS.
Data is in the woocommerce shop backend. I think those orders are saved as PHP files.

Currently i am thinking if i should change controller board to something else. Currently use RNR.

you need to figure out where and how the data is stored, then we can have a look how to convert them into G-Code.