Just got this Monoprice I3 for $100 on eBay, my 5th printer and a several gens upgrade from my 1st, Monoprice Mini. These are amazingly rugged small 3D printers but not quite portable.
For portability, I also bought 2 Micro 3D printers $60 apiece on eBay which can be easily carried around, even run off 5v and stow filament under bed or can load externally. Will come in handy when I’m setting up tech at the observatory and need a special part or enclosure.
Guitarist, Coder, Nerd, Carrotnibbler