My second take on the iconic Raptor, this model of Ford's currently unreleased supertruck features an advanced suspension system, a 4-speed transmission, and more.
About this creation
Propulsion: 2 x RC Buggy motors Steering: Front wheel with 1 x M motor and working steering wheel Drive Type: 4WD - RWD Transmission: 4-speed sequential synchronized V2 with 1 x M motor Weight: 2.25 kg (4.96 lbs) Length: 48.3 cm (19 in, 60 studs) Width: 20 cm (7.87 in, 25 studs) Height: 17.8 cm (7 in, 22.2 studs) Power source: 6272c01 RC unit with rechargeable Eneloop batteries, 8878 Li-Po rechargeable batteries Estimated part count: 2800 pieces Suspension:
--------Front: dual wishbone independent
---------Rear: 4-links live (solid) axle with horizontal springs Opening hood, doors, bed, and engine V6 piston engine connected to drivetrain through transmission Build time: ~100 days Doors with working lock
My second take on the iconic Raptor truck, this model represents the newest - and unreleased - version with several new features I had yet to try in a truck. It has 2 RC buggy motors for propulsion, a 4-speed completely synchronized transmission, and a somewhat unique suspension system.
The 2017 Ford Raptor was revealed in January 2015, alongside such cars as the 2017 Ford GT. It is the successor to the Ford SVT Raptor and features a twin-turbo V6 that is said to output over 450 HP, producing a 0-60 (or 0-102, if you prefer) time of about 6 seconds. Improvements over the previous version are centered on the new 10-speed transmission, and the lightweight aluminum chassis that reduces weight by 600 pounds over the previous model.
Time to make another truck. Every so often I feel like making a large scale replica of a truck, and in this case, the result was a 5 pound, dual-RC-Buggy-motor driven model of Fordís currently unreleased 2017 Raptor. I had already made a model of the previous version Raptor, but as it still remains the coolest off-roading machine on the market it seemed appropriate to give the new version a try.
The drivetrain for this car - like the drivetrain for so many of my other vehicles - started with 2 drive motors; in this case 2 RC Buggy motors. I had thought that I could make the high-speed motors work for increased performance in such a large truck. I was wrong.
I donít know what it is about the RC motors, but they do not work well in high-torque situations. Despite being over twice as powerful as the next closest LEGO motor, the performance they offer for such a large car is barely better than what I would get out of 2 PF XL motorsÖ except the RC motors are so power-hungry that they require the use of specialized power sources. Note to self: donít use RC Buggy motors in really big cars.
The RC motors were hard-coupled before being fed into my 4-speed synchronized transmission at a 2:1 gear reduction. After coming out of the transmission, the drive was geared down by an additional 3.75 before the rear drive was routed to the differential and the front drive was put through a driving ring acting as a RWD-4WD selector. The selector was manual, and located in between the front seats.
The transmission was switched by an M Motor located beneath the rear seats. Geared down at a 16:1 ratio, it switched the transmission slowly by dependably. A V6 piston engine was also connected to the drivetrain through the transmission, found above the front wheels.
Steering and Other Motorized Functions
Steering was a rather difficult affair, for once. Because this car was powered from the RC unit, because the RC unit was located in the bed, and because the RC unitís steering output was pointing directly backwards, there was absolutely no way to route the steering output from the RC unit to the front wheels. Working around this required the use of a second power source and a switch.
In the final version, the RC unitís steering output actuated a switch directly beside it, a switch that controlled the on and off functions of the steering motor. The alternate power source was an 8878 Li-Po rechargeable battery box. A working steering wheel was also connected to the steering system.
Suspension and Chassis
Rear suspension was also a different solution to the usual. Because of the RC unit sitting directly over the rear axle, and because of height constraints, the 9L springs for the rear suspension had to be placed horizontally as opposed to vertically. The resulting setup is detailed in several of the photos below.
Front suspension was simple; just the usual dual-wishbone independent with an elastic to make it a bit harder.
The chassis was remarkably solid for such a heavy, large-scale car. The chassis was reinforced by 4 pairs of rails placed in sets, with 3 studs vertically in between them. The solidity of the frame rails and chassis was helped by the solid masses of the RC motors (which were worked into the frame rails) and the transmission.
Iím actually really happy with how the aesthetics turned out on this car. The back end perhaps could have used some additional work, but I think captured to Baja-ish look of the front end. Iím also pretty happy with the air intake on the hood.
Unfortunately - and I know Iím going to get some comments about this - I was unable to add the distinctive FORD letters into either the front or the back of the vehicle. I have neither the pieces to do so, nor a sticker-maker to act as a substitute.
Oh yeah, also, the doors lock.
A decent car, overall, but I think that Iím much more proficient with sports cars than I am with trucks. Something about the increased weight and torque seems to make so my trucks never perform all that well. They also take me a quarter-year to build.
Thanks and enjoy the pictures!
From this picture you can see the rear suspension system.
This is a great truck. Great job with the scale. I liked the very detailed descriptions, helps me appreciate the work put in. There are a lot of functions and looks sturdy. Special care was put into the drive and suspension, which I really dig. :-)
It's one thing when someone builds a cool looking Technic model, but when they incorporate all the amazing functionality, combined with realistic gearing systems, a video, and good presentation... wow. It makes it amazing. Ingenious MOC, killer music, spot-on job. Bravo.
I think the keyword here is torque. The buggy motors pull a lot of current, but put that current into speed, rather than torque such as the XL and L motors do. Power source aside, this is the most beautiful truck I've ever seen built in Legos! The mechanics are equally impressive. You should really be proud of this thing! Amazing work!