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They both look good Andy. So this 2mm scale is smaller than N scale. That gets pretty small
Thanks for the info on the 2mm FS. Have you thought of adding a collet holder to the Cowells? I assume the one they offer would still fit you machine.
For those wanting to CNC their MF70's there is a full set of parts available to print on Thingiverse.I have printed all the parts for X and Y to CNC my KT70 which is very similar (the lower plates needed a slight modification due to leadscrew being in the centre, not offset.)I just need to make some bushings/collars today and will then be able to connect to my GrblPanel/Grbl box for some testing.
You could drive the steppers using belts/pulleys. The rest of the brackets would still be of use, only replace the ones mounting steppers in present design? The new mounting plate could be made easily removable.I have seen some coupling designs that use the original handwheels with pulleys instead of the dials. There was/is a Unimat SL kit that uses that method.