[TC18] Pullback Racer 42106

[Tomik]

I like idea of current TC18 contest so I decided to build something for it too. My initial idea was very simple - it has to be alternative model. Then I found out that set 42106 is the only set I own with four 43,2x14 wheels so I chose it as parts resource.

This set also features pullback motor so I think I am the first who decided to use it in model for contest. Since I also wanted to add ordinary steering I had to find the way how to make them work together. I came with idea of two modes:

1. Pullback - pullback car with blocked steering to keep it going straight
2. Steering - car with steering and disabled pullback motor to allow reverse

I began building chassis with necesary mechanisms and then tried to build body around it. Honestly this is my first "normal" car so I was very curious about result (I built only hot rods and buggies before).

Building body became as interesting as I stopped taking care about chassis and made body one solid structure. I didn't take inspiration from any real car but I think it looks like hybrid between Škoda 135, Ford Mustang and some Asian tuning car. Body is connected to chassis only by two pins and four axles. It has very simple interior with steering wheel and no seats due to limited amount of parts in set 42106. Overall dimensions are: lenght 34 studs (41 with flames from exhausts), width 15 studs and height 12 studs. 

Back to functions - pullback motor is connected to rear axle through 3 gears that can be disconnected by gear behind right door. Connection is also secured with black pin to resist torque from pullback motor. Steering can be locked by two axles controlled by black lever. Thanks to its big weight this race car features small acceleration and low max. speed.

Chassis in pullback mode

Chassis in steering mode

Building instructions are available at buildinst.cz

Any comments are welcomed.

Edited May 3, 2020 by Tomik

[Void_S]

Great model! It reminds me the rally-alike cars from FlatOut game (1-2 pars) which also were painted in some contrast colors and initially were made of some rusty and somewhere crashed road cars. Even some "holed" design somewhere 

By the way 42106 set itself nicely meets this "sprit" as well, but your approach with normal-drive and demolition-race modes makes the great variety of possible purposes! Breathtaking beginning, for me 

[Tomik]

Just now, Void_S said:

Great model! It reminds me the rally-alike cars from FlatOut game (1-2 pars) which also were painted in some contrast colors and initially were made of some rusty and somewhere crashed road cars. Even some "holed" design somewhere 

By the way 42106 set itself nicely meets this "sprit" as well, but your approach with normal-drive and demolition-race modes makes the great variety of possible purposes! Breathtaking beginning, for me 

Thank you for your comment. I played FlatOut 2 and totally forgot its junk cars - you are right there is some similarity between them and my model.

[Void_S]

Just now, Tomik said:

Thank you for your comment. I played FlatOut 2 and totally forgot its junk cars - you are right there is some similarity between them and my model.

Yeah, I tried to avoid of "junk" wording here as your model is not that "used by hard" at all but it heavily reminded me them, a very positive manner 

Such encourage for absolute daredevils who block the steering wheel and unleashes the pull-back power! No way to stop or turn away!

[ukbajadave]

Nice work on making it a C model of one existing set. Mid engine and that flat rear cover make me think of Lancia 037 and Ford RS200.

[Jurss]

Really good C-model.

[amorti]

Well done!

Could you post a video how the functions work? 

[agrof]

This is a very good idea with the pullback + lockable steering, which popped into my mind as well, but honestly I was/am too lazy to go further than thought experiment. I am happy to see it is so nicely implemented, and even as a C-model... great! 

As a challenge... would it be possible to connect the steering lock and the free-coaster mechanism, to operate both simultaneously with 1 lever movement? That would be the ultimate solution. 

Edited April 28, 2020 by agrof

[Tomik]

2 hours ago, ukbajadave said:

Nice work on making it a C model of one existing set. Mid engine and that flat rear cover make me think of Lancia 037 and Ford RS200.

Thanks. You are right Ford RS200 looks similar to my model (I didn't know about this Ford before).

 

Just now, amorti said:

Well done!

Could you post a video how the functions work? 

I will but I can't say when I find time for making it. I hope it will be before contest deadline.

 

Just now, agrof said:

This is a very good idea with the pullback + lockable steering, which popped into my mind as well, but honestly I was/am too lazy to go further than thought experiment. I am happy to see it is so nicely implemented, and even as a C-model... great! 

As a challenge... would it be possible to connect the steering lock and the free-coaster mechanism, to operate both simultaneously with 1 movement? That would be the ultimate solution. 

Thank you. Connecting both functions together was my initial idea but later I found it almost impossible due to lack of useful parts and space. I think it would be possible in bigger model.

[fosamax]

Great b-model Tomik from a set that didn't looks too appealing. I think your alternative is way better than the official Lego model. Hope to see more from you as well.

[agrof]

18 minutes ago, Tomik said:

Thank you. Connecting both functions together was my initial idea but later I found it almost impossible due to lack of useful parts and space. I think it would be possible in bigger model.

I see, the constrains of alternative models. On the side note: speaking of alternative models, that C-Rex is my recent top favorite! 

[Tomik]

1 hour ago, fosamax said:

Great b-model Tomik from a set that didn't looks too appealing. I think your alternative is way better than the official Lego model. Hope to see more from you as well.

Thanks. I am not sure that I understand what you mean by your "more". I am thinking about building at least one more alternative model from this and then other models are in pipeline.

 

1 hour ago, agrof said:

I see, the constrains of alternative models. On the side note: speaking of alternative models, that C-Rex is my recent top favorite! 

Yep, C-Rex was great parody of T-Rex. 

[fosamax]

2 minutes ago, Tomik said:

Thanks. I am not sure that I understand what you mean by your "more". I am thinking about building at least one more alternative model from this and then other models are in pipeline.

 

Yep, C-Rex was great parody of T-Rex. 

Yes it does mean more models from you... not that you're not building already lots of models, but usually, those are greatly thought and I know for sure that you mainly avoid illegal building in lego terms, which is quite difficult.

As you know, my models are not always respectfull of that doctrine and I have great respect for people who force themselve to avoid it, as it is probably more difficult.

Take care of you.

[Tomik]

16 minutes ago, fosamax said:

Yes it does mean more models from you... not that you're not building already lots of models, but usually, those are greatly thought and I know for sure that you mainly avoid illegal building in lego terms, which is quite difficult.

As you know, my models are not always respectfull of that doctrine and I have great respect for people who force themselve to avoid it, as it is probably more difficult.

Take care of you.

I have to admit that I used one illegal building technique in my pullback racer - I connected two 2x4 plates to 3x5 L-liftarms by four studs each to get base for headlights. I think it is legal to connect just one stud of system part to hole in liftarm...

[Tomik]

Building instructions for pullback racer are available at buildinst.cz now!