JoKo

Thanks for the link! seems to be full of useful legotechnician tools. Yeah, exact scale is not what I am lookin for at this scale. If the model is pretty and recognisable I am happy with it. Your point is interresting, it makes me think about my process. I usualy print a basic blueprint with wheels at scale and because of Technic limitations I often have to push things on the large side. Because Technics can't reproduce reality (pivot point, wheelarch thickness, geometry) it's nearly impossible to be perfectly on scale. But I will systematicly have tiny wheels if I dont change my process. I'll keep that in mind for larger scale Edit 1/2h later: What an idiot I am, I answered before trying slightly larger wheels. and guess what! It fits 49.5 x 20 and what a rally look! sadly for display only, the front don't have clearance for playing So new pictures tomorow I guess... Thanks for the tip!

Exactly, for now I made 3.5 of them. But it was mostly 4WD so many differentials are needed. I stick to the same scale with 43.2 wheels. Group B was incredible! Crazy cars an safety third! It stopped for a good reason.

Hi! I started recently a serie of rally cars based on 1982-1986 Group B models. ll started with this top gear video: full episode if you have time And a 2min sample: So I started with the Lancia 037, the last 2WD winning car. (I think i's a beauty) Scale is ~1:13 the tires are 43.2x14 front and 43.2x22 rear for good traction. The car is just under 30cm long. Features: - fake inline 4 engine with chain driven "camshaft", compressor, intercooler, air filter, exhaust - RWD with differential - 4 wheels suspention, independent front and live axle rear. suspension is provided with 1 rubber technic piece for each wheel - Discreet HOG: the HOG axle is paralell to seat's back, the HOG knob is hidden in the engine bay when not used. It pictures the air filter - Quite sturdy and playable, lightly detailed interior with central rear view mirror If you liked it stay tuned, more to come!

I understand. It's just that I'm new to this and was a little shy to share an unfinished MOC. Thanks for caring about my entry is legit and unsuspicious If anyone has a doubt that I started this project for the contest, my good friend 1980SomethingSpaceGuy told me about the contest the 15th april, I have proof! Mr Administrator himself! Nice to meet you . The bounding box picture is posted, does it seem legit to you? I can make more if needed You won't have to wait much to see my next MOC presentation!

Nice original idea!

Ok, you're right. I will detail the story. So the base is the catamaran hulls and this picture: (higher resolution on wikipedia) I was disapointed with the hulls, massive leaks when loader but electrical tape will fix that and hide the light green part. The main challenge was the 10 000cs rule. The hulls with tracks and light gray platform are half the volume when 1 stud between the hulls (37.5 x 19 x 7 =4987.5cs ) I had to keep everything in the same footprint and max 14s high. The tracks are in tension by the shape of the hulls, with inverted bows. One single pin on each centerline and the platform keep them in place. The crane design is quite simple. A long main beam and a shorter one at the back with the hoists. The twin winches are delayed with a simple mechanism. Both are connected to a big gear with two pins each. The main winch is hand activated and the secondary one is delayed by half a turn of the big gear (not quite) and 1.5 turn of the winch. Friction pins avoid unwinding when not wanted. I had to buy a second 42116 loader for the clamshell. 30433 was more on scale but Hey, that's a dredger and not a sugar cube picker! When the crane is operational it's time for the first sink test. Stability is awfull with the oscillating weight, just a bit better with the clamshell touching the water. The waterline is already too high especialy at the bow (the aft of a boat (the crane side obviously!)) At this point I know it would never float properly without extra lift, well over 10000cs. I continue with a display playable model but i keep the idea of electrical powered propeller for sailing extras. The vintage 9V motor is perfect for the small prop. Not much torque but high revs! Not much space between the hulls. I coudn't find a way to fit a proper Z-drive ( steering with the prop) so I keep it simple with a straight propulsion and a ducted steering free-rotating propeller in the flow. The HOG is just over the propellers. Everythig else is making things pretty and adding minifig scale details with a 14studs gauge in the other hand. The last element to find it's place is the boat cabin with fonctional compass, flush with the track on starboard, in the last bit of space aviable with the crane folded. The crane can rotate 360°. I added sailing equipment mixing technic and system: 4 mooring bollard, anchor, sailing lights, horn, life buoy, compass and crew! I had a realy good time with this project. Minifig scale technic is fun and it was a pleasure to play with my childhood's shark for the video!

I do! but a few...

Thank you to everyone. I also made a small video

Thanks mate! good idea to let me know about this contest

Thanks, Yes I made it for the competition. The folded size is 19x14x37.5 = 9975 cubic studs, I had to scratch my head a few times to keep it in the box. Some details are a bit fragile, it would deserve a more sturdy version to let small children play but the clamshell mechanism is fun to play with.

12. Clamshell dredger Features: Dredger crane with automatic twin winch operating the clamshell Electric propulsion with manual steering Minifig scale an compatibles cabins Many minifig details

Hi everyone! This is my first appearance on Eurobricks. I hope you'll like my interpretation of a construction vehicle. As professional boatbuilder I choosed to build a floating machine. The platform is made with the 42105 catamaran hulls, using black stickers for fixing leaks and colour matching. The main feature is the dredging crane. The main twin winch operates the clamshell. With a single hand knob it automatically opens the shell before going down and closes it before lifting. The mechanism is simple and located between the big gears. Another winch and hoist adjusts the crane arm elevation. The boat is motorized with 1990's PF motor, switch and 9V battery box. A powered fixed propeller is hidden between the hulls and a steerable ducted prop allows maneuverability and looks like a Z-drive propulsion. However the boat is too heavy and unbalanced to float property without additional buoyancy. Best technic regards And some outdoor pictures! I had to use wheels to help buoyancy and stability on the water. Of course it exceed the 10 000 limit but look at this, I had to share the photos.