The K40 is obviously a low-end, no frills machine. What kind of upgrades do most people make? And which upgrades should be the highest priority?
In no particular order:- laser head with air assist- better controller (DSP board, smoothie board, cohesion 3d, etc.)- adjustable z-height table- emergency power shut off switch- ammeter- rotary attachment- honeycomb bed- water flow pressure sensor- tube extension