Large printer with weird rails
https://www.youtube.com/channel/UCummTDBPp9wecEyIerKeRFQ
Circular Polar 3d printer
https://www.youtube.com/watch?v=jKhPWo6QZwA
Delta, is a remake of an old Rep Rap design
https://www.youtube.com/watch?v=_Ry1FGsvIMA
Construction Crane style printer, labeld Inverted polar
https://www.youtube.com/watch?v=MYaYVmX7mUY
Fancy Rotary Delta, this thing is very impressive
https://www.youtube.com/watch?v=Sh7eLu4tUMA
Archie A home made Rotary Delta, a big series of these vids:
https://www.youtube.com/watch?v=IG3Yfhys-N0
https://www.thingiverse.com/thing:4591379
