Newbie looking at 6040 (China CNC) for polypropylene 15mm sheet

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Just one more question for everyone. I need to basically set up multiple stations on the CNC to do different operations.

What is the best way to get positional accuracy with the drill bit and workpiece?

I have seen John over at NYCCNC on his Tormach and HASS use a device that sits inside the collect to get XYZ positions as well as a little cube that gets the drill bit position.
Is that an option with Mach3 and this sort of CNC?

Was going to mill a 10mm plate to put vices on that can then be squared and made repeatable. But it is that first setup each time I want to make sure I am a 0.01mm accurate.

Thanks
Jack,

I just googled "touch probe mach3" and I get 83,400 hits... :)

...along with pictures, and build instructions of everything, from simple touch plate to complex 3-D probes.

A simple conductive material works fine and will give you the accuracy, but remember that your accuracy depends on what you calibrating with as well. A touch probe is connected to one of the free inputs and you configure that input in Mach3 as "Probe". The thing is that you need a macro to get it working as well, but there are plenty of those available freely if you don't want to write one. Once you have the macro you have to attach that to a button and call it every time you intend to use it. It is pretty simple but maybe you need to spend some more time if you have never done it before.

I am using a simple PCB piece most of the time, it works just fine, but have plans on making something more advanced, but it isn't highest on my priority list.