Looking for an economical XY (well and Z) solution that is not for the normal use

[SparkyLabs]

https://www.amazon.co.uk/VEVOR-Machi...12981&sr=8-100

This one actually states 50µm repeatable accuracy, I guess as it's a bit more heavy duty but not sure how I hack into the motor controls.

[Doddy]

I guess as it's a bit more heavy duty but not sure how I hack into the motor controls.

If you're in the electronics field then 'hacking' the motors is the least of your worries (though carries cost) - standard steeper motor drives and some bespoke control system. Concentrate on the mechanical as that presents the greatest challenge to deliver against cost. You seem to be trying to adapt a machine to your use-case, might be easier designing a machine to actually match your requirement,