I like pushing the envelope
It seems to work ok so I can't see any harm in it, if it was too bad I would expect broken tools but this one seems fine after running these tests and it wasn't new when i started.
I know it's not an engraving machine as such, but it does seem to function pretty well as one, I don't do much engraving luckily but needed to know if it was possible and it seems so.
I still have the mini-mill but really need to sell that on now to recover space in the shop as well as cash.
I think she will do just fine but being me I like to know exactly what limitations i have
Just for completeness, the "test" is pictured below, the T is about 18mm tall, this picture was taken before i fitted the new thrust bearings on X & Y, its even better now.