Tubes with length 14, 9 and 8 are shown here. Maybe there are solutions for tubes with length 7 as well,
but it seems to be very difficult to get them, because all nonplanar pieces must be placed at the edges.
Tubes for the extended tricubes are: 3x3x14, 3x6x8 and 4x5x8 all colored green.
Tubes for the clipped tetracubes are: 3x6x9 and 4x5x9 both colored red.
Drawings showing the layers of the constructions.
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