Makerbot Replicator Filament Guide
thingiverse
A filament guide to pull filament from the centre of a spool, reducing the chance of a jam on non regular spools. Instructions Print 2x FeedSupport and 1x FeedSupportPlatform, click together and then un-clip filament tubes from back of printer and attach new system. (update: uploaded wrong scad file, will re upload when I find it)
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