Mendel Prusa filament spool

Useful add-on to guide your filament into the extruder from either a reel or even works with a roll on the floor. Clamps to the top two rails and assemble much like the Mendel Prusa with 8mm threaded rods, washers and nuts. The top guide spool spins freely and slides along the rail to suit the printer head.
I use this with a triangular frame reel stand behind the printer with three reels of PLA on it and it feeds really well from full or emptry drums.
In the photos attached you can see I am fe