Re-Upload as unsure if all parts were included.

About My Design.

I have seen that there are three main shelves above the printers so I have designed my holder to be interchangeable.
I have tried to account for all spool sizes and with the 5KG spool the extension piece could be elongated to increase the gap.
Included is one of the holders which there are meant to be two and will require some assembly,
Extras you will need for the when assembling: 4x skateboard bearing and 4x 3mm bar of a length of 25mm.
I have tried to separate parts so the printing of layers could make the parts the strongest.

to the side of the pieces is what the whole thing would look like (minus the extras).

This was my first ever CAD design and hope to get to know it better but I believe that I have designed an efficient spool holder.