i3 Spool holder

I was having some issues with tension on my spool and extruder while printing with the spool on rollers at or below the extruder height. I decided to make an inexpensive spool holder that sat above the extruder but didn't put all of the weight on the printer or modify the printer frame. This was my solution. Copper pipe is affordable and easily obtainable, this could also likely be done with PVC if you keep the O.D. of the pipe below 24mm, otherwise these models would require modification. I