Moved the extruder directly on top (got rid of bowden PTFE tube), improving overall performace.
My current 3D printer. Built from salvaged parts (except the hotend). The rails and motors are from printers while the base is from an aluminium external HDD case. The heated bed is glass glued onto a custom PCB. All three axes are belt driven (Z has gearbox). Using a bowden type extruder.
It was made to be relatively small and portable.