nico71 Posted March 4 Posted March 4 Following my 1/30 LEGO Technic American Heavy-Duty Truck, here is the European version, based on Scania design. Features drive, steering, a tri-axle trailer with fixed or steerable axle, openable doors and tilting cab. Available in motorized or manual version in a single download, all upgradable. Specs : Model inspiration : Scania S Serie (High Roof) Dimensions : 21cm (50cm with trailer) x 10cm x 15cm Øwheel : 37mm Two versions available : Manual or Motorized (Power Functions) Rear wheel drive with a L-motor and differential Small turning radius steering with overhang PFS Servo motor, rack and pinion Battery source compatibility : PFS+Buwizz 2.0 or 2.4GHz battery On manual version, steering operated by Hand of God on the back of the cab On manual version, working L4 engine under the cab All versions are included in a single package and are upgradable from and to each version Tri-Axle Trailer with fixed or automatic steering axle using linkage and a locking pin Landing gear on the trailer with friction gears Openable doors and tilting cab See in action : Design Process : After the good reception of the US Heavy Duty Truck, many asked for the European equivalent, so I did ! It shares the same philosophy with high playability and motorization upgradability with two versions. But with two improvements : a fake L4 engine on the manual version and the placement of the battery in the cabin for the motorized one. The drive is identical to my US truck, except there is only one axle on the rear, and so no suspensions. The differential can be swap for dark bluish grey 28t and 20t to have more speed but less controls. The steering is different, with the servo motor placed in front of the wheel, instead of behind, thanks to the set-back-axle configuration or european cabover. It enables to have space for the fake L4 engine on the manual version in place of the servo motor. The turning angle is the same but the wheebase being smaller, the turning radius is even smaller than the US truck. Thanks to the cabin shape, I placed the battery inside, behind the seats, which avoids to have cables between the truck and trailer, enabling an easy coupling/decoupling when playing. At a cost of a loss of traction on the driven axle, as it has less weight on it. The cabin can wooble sidely to mimic cabin suspensions and can be tilted as a whole in equilibrum, retained by chains to enable the wobble (comparing to a beams solution). A recessed cover panel replaced the battery on the manual version and provide a better access to the steering hand of god placed behind the cab instead on the top to improve stability during play. The trailer uses the same mechanism as my US truck (courtesy of TechniMocer for the original idea), but have a different exterieur design and colors, with longer platform, sideguards, front bulkhead and a different bumper, moslty based on Schmitz Cargobull and Krone trailers. To finish with the design, it is inspired from the Scania S Series high roof, with the iconic front grille and upper cab shape. Which has been recreated with a lof of half stud to get the correct proportion at this smal scale. I changed also some details like the grille and roof light, as well as some colors to fit the LEGO parts to have homogeneous design and color consistency. Links : Pictures and Instructions on nico71.fr Bill Of Material (Motorized) on rebrickable Bill Of Material (Manual) on rebrickable If you want to build only the Truck in motorized / manual version, or the trailer, you can download the dedicated Bill Of Material here in csv format, or watch online Truck Only (Motorized or Manual) Trailer Only (same for both version) Let me know what do you think about ! Quote
Thirdwigg Posted March 4 Posted March 4 Great job, and I like this one a little more than the "American Cab" that was shared a couple week ago. The cab looks perfect, and the functions packed in are just right; everything that is needed. Well done again. Quote
gyenesvi Posted March 4 Posted March 4 That's areally cute duo! Maybe they could have entered the recent contest? :) Anyways, it's a great idea that you have made an american and a european version with the same trailer and features, and that they have manual and motorized versions, nicely hidden electronics! Quote
nico71 Posted March 4 Author Posted March 4 (edited) 7 hours ago, Ngoc Nguyen said: How do you make the cabin wiggle? Basically the cabin in articulated on the front, and resting on the back, the trick is to have narrow connection and enough space to enable the wooble. It is not a true suspension in the way it can not compress, but for sure when you take a fast corner, the cabin move sideway. 2 hours ago, Thirdwigg said: Great job, and I like this one a little more than the "American Cab" that was shared a couple week ago. The cab looks perfect, and the functions packed in are just right; everything that is needed. Well done again. Thanks ! I personnaly prefer the US version, but this is my inclination for nose truck ^^ The scania is moreover more pleasant to drive with the short wheelbase. 1 hour ago, gyenesvi said: That's areally cute duo! Maybe they could have entered the recent contest? :) Anyways, it's a great idea that you have made an american and a european version with the same trailer and features, and that they have manual and motorized versions, nicely hidden electronics! Oh, I have to look at it ! (Edit : too late ^^) Thanks for your message, indeed, I like this scale, so why not continunuing with other 1/30 truck for the lineup. I am thinking of classic US cabover like kenworth K100 or european ballast truck in 6 or 8x4 ! Proposing both version is now something I want to propose, it enables to choose the way you want to build and is upgradable, surely it is more difficult to handle the two models but I think this is great to propose that. Thanks for all you messages ! Edited March 4 by nico71 Quote
N1K0L4 Posted March 5 Posted March 5 Very nice. I like this one better as it is able to hide the battery in the cab, and the cab itself looks really good. 19 hours ago, nico71 said: Basically the cabin in articulated on the front, and resting on the back, the trick is to have narrow connection and enough space to enable the wooble. It is not a true suspension in the way it can not compress, but for sure when you take a fast corner, the cabin move sideway. Maybe mounting it on those rubber-connector-things would give it a more controlled wobble and actual suspension? Quote
jorgeopesi Posted March 5 Posted March 5 I am not surprised for the technic part... what makes me crazy is why is so looking good with only a few no-technic parts... can be that teached?. Quote
nico71 Posted March 6 Author Posted March 6 22 hours ago, N1K0L4 said: Very nice. I like this one better as it is able to hide the battery in the cab, and the cab itself looks really good. Maybe mounting it on those rubber-connector-things would give it a more controlled wobble and actual suspension? Not sure about that, the rubber acts like a damper, not really like a spring. Even if I mounted vertically, the weight will compress it but the suspensions effect will not be very visible because of the small weight and driving force. The rubber liftarm are good in suspensions when twisting so ideal in axle crossing for instance. The best to reproduce here considering the physics is low damping suspensions so a soft spring or elastic band. 18 hours ago, jorgeopesi said: I am not surprised for the technic part... what makes me crazy is why is so looking good with only a few no-technic parts... can be that teached?. Yes, the system part help a lot to have a smooth finish, mostly tile and curved parts to fill the hole, as well as thinking about the orientation of each parts, it truly make the difference at a low cost. But it requires to think about all the needed connections and the extra dimensions needed. You can not just put tiles on holes and voila, it is more subtil than that. What helps also the design here is the 1/2 stud constructions everywhere (mostly made with half connector/beam and half axle). In order to have correct alignement and design homogeneity. If I had built only on the LEGO grid, the design would have been bulkier "for sure 😎" 11 hours ago, TLCB said: Featured at The Lego Car Blog Thanks TLCB team ! Quote
keymaker Posted March 9 Posted March 9 (edited) For me (apart from technical part and functions which are always important to me) the fact, that such a small MOC can still look as good and be so close to real counterpart while still built almost only from technic parts. Truly amazing. This is the skill I would like to learn. Edited March 9 by keymaker Quote
nico71 Posted March 10 Author Posted March 10 Thanks a lot ! You can learn it by inspiring and practicing :) Quote
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