Filament Spool Holder with Offset v4

The standard 0.9kg (2lb) PLA spools sold by Makerbot are larger in diameter than the old school ABS spools they used to make. This causes problems on the Makerbot Replicator 1 Dual because when you try to mount 2 spools at the same time, they get in each other's way which can be annoying to install, or sometimes one spool causes the other spool to unwind.

I have finally gotten around to printing a replacement filament spool holder which will offset one of the spool holders by 2" to the side so that there is enough room to easily use 2 spools at the same time.