Inverse @deltamaker printing on the floor. Moved everything from bottom to the top, removed all the extra wiring/bottom components, and apparently PLA sticks pretty well to floor paint.
Good job, now put a paste extruder and print some cookies.
There are infinity awesome pranks you could play with this if it had a mobile battery power supply.
Actually, this could be adapted into a continuous autonomous printer by working in some kind of conveyor belt printing surface like what Makerbot tried long ago before they gave in to the dark side.
Theirs never worked very well, as I remember it, but theirs was also mounted on a moving bed inside of a box style cartesian printer without the benefit of auto leveling.
@Stephen_Baird , the math on the conveyor belt idea proves it to be a bad idea. You’ll never get an object to print on it without wobbling. The whole idea is a non-starter.
I’ve been build mine with everything on TOP for a while. It’s so much easier to work on.
Set it in the floor and everything is accessible
Aw, dang. It’s probably for the best, though, it would only be a matter of time before someone who didn’t know what they were doing got one and started a serious unattended fire. I’m sure news stations would have a field day with that.
@ThantiK What if you raise/lower the printer and the conveyor belt was holding flat “plates” that would slip under the printer? EDIT: Alternatively, have the plate rise up to meet the printer and lock into place for the printer to print upon.
@SirGeekALot , I was thinking more like have the printer go “past” 0 limits, and walk itself along the floor. 
Have u thought of airbrush computer controlled ?
@Glenn_West yes. We’ve been retooling the head to accept different toolheads – information will be stored on an eeprom and allow us to store things like thermistor tables, information about the tool dimensions (to account for zero offset), etc. We’re hoping to make a splash soon with something for everyone.
@ThantiK a walking printer! Now your talking brother!! Hahaha
How about that heated bed? 
@Jason_Doege , I’ve been asking the same question myself for a long time.