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Hi After some fiddling I came up with this idea for a single crank W16 engine: Each crank uses a #3 connector to comepnsate for the piston offsets: And Finally the top view of the engine: Hopefully someone can build this baby in real life and provide feedback LDD file: https://bricksafe.com/files/Zblj/w16-engine/W16 engine.lxf
In the 42083 Bugatti hipe here is my throw at a fake W16 engine. I wanted it to be small and easy to install. I spent some time on it over the weekend and after some trial and error I got it working. It has more friction than a mini-V8, but I'm afraid that is inevitable. It all comes very precise. For the fake crankshaft I had to use mirrored cam-pairs, otherwise the sharp side of a cam piece would hit the piston under too much angle, which sometimes caused hick-ups. To make it run smoothly the pistons need a space of exactly the height of a flat plate, no more, no less. Also the end-stops of the 3L piston-axles are essential and the round sides of the bushes attached to the pistons need to face down. If it wasn't because of the mirrored cam-pairs, a half-cylinder offset in the piston-rows would have been possible . LXF-file here. EDIT: I reworked the mini engine into a 1:8 scale version. Slightly different configuration. If you build this: Be sure to level the bottom-ends of the 3L piston-axles with the bottom-ends of the bushes by pressing them against the flat side of a beam. Sink the piston-axle-end-stops all the way into the 12t gears. Make sure the round side of the bushes face down. Instructions can be found on Rebrickable.
I felt like it was time to step up my game and start modeling more popular, more difficult Hypercars. I was able to create a suspension strong enough not to need torsion bar, for all you purists out there Flickr Album: https://flic.kr/s/aHskZHoj1H The Lego car blog: https://thelegocarblog.com/2017/05/15/money-monday/ Photo Instructions: https://goo.gl/photos/TYFAPW11jpkdA2dTA The Chiron has curves & shapes difficult to replicate. This build began with the simplistic, strong and extremely reliable Framework. Features: custom W16 motor (designed by @DugaldIC), front and rear lights, 2wd - 4wd shifter, Steering with the Servo, 2 XL Motors for drive, 1 M motor for rear wing, Sbrick, LIPO battery, button to turn on the battery & independent suspension. The idea was to create a purely cosmetic build, and create the whole car as close to scale as possible. As this car has a fairly short front and rear end, the batteries and motors had to be between the wheels. The Servo for steering was tucked as low as possible in front of the of the wheels not to interfere with the hood / wheel wells. Bugatti Chiron - Rear end by lachlan cameron, on Flickr The framework is low as possible, 1 stud off the ground, 2 studs above the front wheels. This was a nightmare to allow the wheels to turn without rubbing on the inside. There are 10 lights on this car, the most I have ever added to my builds! I've got to give huge props to Dugald for the engine, and Sheepo for the car jack in the video Two builds, two bros - Bugatti Chiron & Aston Martin Vantage GT3 by lachlan cameron, on Flickr Two Bro's, two supercars