After the excellent show n tell Tuesday, it was suggested I post some info/history, so here goes.
Couple of years ago, built a CNC using crossslide vice (against lots of internet advice - which was correct).
Did couple of serious hole drilling jobs…with lot of care & manual tweaking
But my XY axis had really bad backlash and twist.
Luckily I built to allow upgrades - 1st photo shows upgraded Z from dremel (don’t bother!!!) to $20 donated trim router
…Cuts 6mmx1mm in Al at good feed rate…but 1/4" holder =?>$$ tools, or adapter
Collet is REALLY short - so does not hold very well
…probably need upgrade/swap…
Z axis weighs 7kg!!
Next photos show items been scavenging/donated over last year, so can do upgrade
But the upgrade would now be a bed of 1000 x 1700…which means need a fairly serious CNC to make parts for it…so an interim upgrade of XY on original mill is underway to make a mill with XY of about 500 x 400 travel, that hopefully can cut Aluminium, maybe steel.