I present you my new economical spool holder !

Many spool holder use a lot of filament and was looking for a solution to use less and to not make big holes in my wall, again.  Plus I had some spare space in my library.

So I designed this one. It use a PVC tube of 32 mm and 2 M3 screw. At first the screw wasn't on plan but I was a little bit scared. So on the picture this is the V1. 

I thickened the model so it should hold some spool without any screw. I lay down the model so I hope the PVC tube will bend less, let me know.

Please note that I put the infill at 50% but it was without the screw. with it I think the regular one should do the trick. It require a lot of support to be printed in good condition

I think it can work without the base for the Billy's hole, but it will help to align both side.

It's working for me pretty well, I do not have enough spare spool now for pushing the test further but with the modification it should be tough enough for one lenght of a classic Billy shelf.

Any critisism or advice is welcome =)