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Here's another small creation I spend some time on the past few weeks. A small American truck: I had a few wishes before I made this model. - Had to be 7 studs wide. - Had to use these tires, because they are the only tire size I know of that have good looking "truck (double) wheels" for the rear axles and good looking single tires for the front wheels. - Small fake engine - Maximum steering range possible - Steering controlled from the 5th wheel (why will become obvious later) - Openable doors and interior I got this in the model, though some are not the most pretty. Especially the wheelarches at the front are a bit big. First of all, making the wheel arch a full stud lower would touch the wheels. Lowering it half a stud is something I didn't even really look into, because I am getting pretty tired of the "half stud issue" that plagues pretty much all my models The rear part of the wheelarch is that far behind the wheel due to the steering mechanism. There is space to move it 1 stud closer to the front wheel, but I wouldn't know how to fix it in place while still keeping room for the steering rack. Considering I have alot of "old Technic" parts I used some vintage steering solutions for this model combined with modern parts. On the other hand though I do kind of like this wheelarch, because it reminds me of the wheelarches of old cars I could have settled for a smaller steering angle, but I didn't want to. I also had to keep the steering solution low due to the fake L4 engine above it A known concept for a small engine that I crammed in here. The hood is open for 2 reasons: I like to see stuff moving and because the hood would otherwise be too high for the model. I tried to mimic a curved top on the hood by have it go from 2 to 3 studs. I did have a desire to make a openable hood, but I couldn't figure out a way to make that structurally sound. Openable doors and an interior. The chairs are actually linked to the red triangular half liftarms on the outside keeping them (and the chairs) at that angle. The belly shot, which also provides another look at the steering That 8T gear is actually connected to a 16T idler gear on the steering axle to transfer it to another 8T gear going to the L4 engine. The truck is only driven from the 2 left rear wheels, since I can't fit a diff in this scale I figured this was the next best thing to still keep a nice steering angle. As you can see the outer ring of the small turntable, the "5th wheel", is connected to a black bevel gear which controls the steering. The reason for the axle in the centre of the small turntable is for the trailer. The trailer is a loaded with liftarms, that's partially because I only had 2x 3x11 panels from my 42029 and because of the white line on the truck which I continued on the trailer. The white line on the truck was actually an afterthought. The truck was completely red before, but that looked rather dull imo so messing around with some lines I decided this pattern on the truck was a nice break from all the red. This isn't just a trailer. This is a trailer that gives the truck RC possibilties. This was another wish I had for the model. I wanted to build a truck that was a non PF model on its own, yet had the option of being remote controlled with a trailer. The small turntable was an obvious choice for me because with that the truck on its own looks like it has a pretty decent looking 5th wheel which also allows to be used as a control to steer the vehicle. It also allowed me to have 2 functions (drive and steer) crammed into one spot on the model. I didn't want to see universal joints at the rear of the trailer going to the truck for steering, because that has been done and I don't like the look of that, so it had to go through the 5th wheel. The black bevel gear at the front of the trailer is to secure the steering of the 8T gear. Of course the trailer turns as well, but since steering is done with a M motor you're basically "re-adjusting" steering every step of the turn. The length of the trailer is based on what "felt right". This meant that I had plenty of space in the trailer for all the stuff. I got pretty lazy and just used some universal joints to link the motors I also made a very small video of the model (battery of phone ran out ) I couldn't make a video of the model going in reverse. It does some gear grinding then. Something I can't seem to really fix, because Lego decided to make a square hole in the small turntable instead of a round one, which I could have used to secure that drive axle on the 2.5 stud high rear chassis some more. Considering I don't like driving it in reverse anyway (I am not a master of turning with a trailer ), I am just going to leave it.
