42078 Converter Dolly (2-axles, self-aligning mode)

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Mack Anthem (42078) compatible Converter Dolly with two modes:

  • self-aligning front axle (opened steering lock)
  • fixed axles (locked steering lock)

Data on the assembled model
  • Dimensions WLH (cm): 23.4 x 12.4 x 6.0
  • Dimensions WLH (In): 9.2 x 4.9 x 2.4
  • Dimensions WLH (stud): 30 x 15.5 x 7.5
  • Weight (g): 212.7

Estimated part price (Bricklick): 37.541 USD





Changelog:
  • 2019-07-09 Made and uploaded a PDF file with building instructions in a good quality.
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MOC-25519

Name 42078 Converter Dolly (2-axles, self-aligning mode)
Designer VoidSerpent
Designed 2019
Inventory 260
Theme Technic > Model > Traffic
Gingerbread House
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Submitted by nigel1975 PRO Aug. 6, 2019
Conventional A-double road train
Submitted by nigel1975 PRO Aug. 6, 2019
Tri-drive Mack with tandem dolly & two dual-axle flatbed trailers
Submitted by nigel1975 PRO Aug. 6, 2019
Steering engaged for tight turns
Submitted by nigel1975 PRO Aug. 6, 2019
Tandem dolly hitched to flatbed trailer
Submitted by nigel1975 PRO Aug. 6, 2019
Tandem dolly and flatbed trailer. I moved the kingpin a little further back on the trailer.
Submitted by rcjoce Aug. 5, 2019
Submitted by nigel1975 PRO Aug. 4, 2019
The tandem dolly follows the design of the Mack and replicates the same 5th wheel.
Submitted by nigel1975 PRO Aug. 4, 2019
Similarly the tail lights replicate the Mack
Submitted by nigel1975 PRO Aug. 4, 2019
Side profile
Submitted by nigel1975 PRO Aug. 4, 2019
Steering 'locked'. I found that this does not work very well in my build, either the wheels still steer and/or the lock disengages. I reinforced the hitch as the original design has a lot of movement and also tends to steer the dolly.
Submitted by nigel1975 PRO Aug. 4, 2019
Steering 'unlocked'