direct i3 carriage collaborative wade remix

version of collaborative wade fused with i3 carriage.
i've found i3 carriage+adapter+collaborative wade having too many points of freedom. so fused i3 carriage with wade, skipping the adapter .

as side fx wade got rotated so (in theory) there should be a bit more room for second extruder.
this design is printable, but is not extensively tested yet.
it should be sturdier, and it has just three bolts to unscrew in case of carriage switch anyway so even less hassle to take it down than with classic option.

there are two versions, one is with extruder located at bottom beam - it is extra sturdy but at cost of reduced print space in Z,
and version with extruder located at the top beam - it is more flexible and there is problem with heat routing (there are some vent holes but some of the heat goes into motor area, while rest on the back of carriage - both not very fortunate places).

EDIT : added
i3carriage fuse_higher_beam_offset_better_x_ca... files , this is 8mm rods version with better carriage.

p.s. all carriage designs are not mine , but i've forgot where i've got them from and can't find them again - please forgive me. i'll be happy if anyone will point me whom i should credit.
i think 10mm version is just stock i3 rework design...