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Hot Rod Wrecker
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About this creation

Hot rod wrecker built for the TC6 contest hosted by Eurobricks (February, 2015). The task is to build Technic model that's prepared to use an SBrick (four remote controlled functions).

Remote controlled features:
-drive (2 × PF L)
-steering (PF servo)
-2-speed gearbox (PF M)
-auto crane with winch (PF M)

Other features:
-live axle push-rod suspension
-working steering wheel
-working gear stick
-opening doors
-working V8 fake engine
-custom stickers (stickers are covering only one piece each)


The suspension:
The front and rear axles are live axles with four-four trailing arms and Watt's linkage which prevents sideways motion with a much more vertical motion in contrast with the Panhard rod. Watt's linkage is quite popular in hot and rat rods' suspensions.
The axles have push rod suspension instead of being directly connected to the shock absorbers, and this ensures that the load on the shock absorbers are longitudinal. This results is a very responsive suspension with low friction. Actually this is the best suspension I ever built on my own.
The front push rods are attached to the lower trailing arms, just like in many hod and rad rods.

In the steering system (Pitman arm + drag-link) everything is doubled to minimize backlash. There is quite amount of backlash, and surprisingly enough, the most backlash is not caused by the linkage but the gearbox (only a gear reduction and a doubled bevel gear pair). Despite the backlash, the car drives okay but doesn't like bumps.

Model facts:
-Weight: 1520 grams with batteries and the dummy SBrick
-Size: 48 × 22 × 16 cm
-Scale: approx. 1:9

The pictures below show how the model would look with an SBrick istalled.

Click to see the full picture gallery

Video link:


 I like it 
  January 14, 2016
Beautiful tow truck
 I like it 
  February 23, 2015
Awesome the attention to detail 8D
 I like it 
  February 20, 2015
Whoa.... hadn't seen this one. It is fantastic!
 I made it 
  February 19, 2015
Thank you for the comments!
 I like it 
  February 19, 2015
The functions and good looks, not something you see often. Lovely work!
 I like it 
  February 18, 2015
An awesome and unique car! Well done on this build!
 I like it 
  February 17, 2015
Saw this on TLCB and had to click - it's brilliant! Really good looking (which isn't easy with Technic) and it has some great functions too. 10/10
 I like it 
  February 16, 2015
Great Job..!
 I like it 
  February 16, 2015
Fantastic creation! I love the 'mad' engineering behind! Well done! Keep building!
 I like it 
  February 16, 2015
Incredible work. Amazing shaping and great functions. It's creations like these that are so inspiring.
 I like it 
  February 16, 2015
This is fantastic! Keep it up. -Nathanael
 I like it 
  February 16, 2015
Fantastic hot rod! I really like hot rods and this one looks amazing and comes with great functions - Very cool work mate!
By Máté Lipkovics
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LEGO models my own creation MOCpages toys shop Hot Rod Wrecker

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