I'm going through the extruder part of the build for MakerBot #131,
and I noticed a couple of things.
The instructions show that an idler pulley should be made by gluing
together a bearing and a single Idler Wheel laser cut piece.
However, my kit came with 2 Idler Wheel pieces, and according to the
"Filament Slipping Off Idler Wheel" section of the "When Things Go
Wrong" page (http://wiki.makerbot.com/when-things-go-wrong
), a double-
thickness Idler Wheel "was easier to position and worked perfectly the
Does this mean that the double-thickness is now preferred when
constructing the idler wheel? If so, how does that change the
instructions for that step? I am trying to be careful here because
super glue is tough to undo. :)