Techniccrack
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Everything posted by Techniccrack
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Like money? i dont know, i do know the number of parts is around 14000 Ive done a little lifttest. The total weight of the arms with the crosses and new seats is 2500 grams. No problem at all :)
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An update. Adjusting the arm connections If the head goes up, the arms on one end will go up and the other remaines level to the original position. My model needed adjustments on that. The lower arm dropped when the other arm on the other end goes up. The model will be dressed up with groundplates, so the arms must never goes below the original position. so now its good: Transport Also i am working on the transport of the model. On the real polyp the arms will be collaps so the ride can be transported: So here is how my model will be on transport: Left and right of the base there will be trailerparts that will be connected to the center unit. so i started to build those (in LDD, still in progress): Will be continued...
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Wimpie3: Ive got some info about the real life Turbo Polyp: A little scale comparison: The Lego polyp is build in a scale of 1:17,2 In real life the Polyp measures: 1940 cm So the Lego polyp should be Lego 112 cm Its 110 cm. So..ok Center unit measures on the real model: 248 cm So the Lego version should be 14,4 cm (18 studs) Its 16,8 cm (21 studs). its only 3 studs too wide But i cant decrease the diameter because of the liftsystem) Seats Real: 140 cm Lego should be : 8,1 cm (±10 studs) Its 10 studs. so ok Head: Real life: ± 200 cm Lego should be : 11,6 cm (±14,5 studs) Its 12,8 cm (16 studs). only 1,5 studs too wide But i can adjust this one, i shall look at it So the scale is a littlebit off. but i can live with that. the whole machine looks great in my opinion QUOTE: "The curvature of the arms is also incorrect" Here is a comparison photo of the real deal and the Lego version: Take a look at the curvature of the arms: its correct (the arms are a little to wide but like i said earlier, that is unavoidable) (dont start about the fact that the real polyp has only 5 arms, I am building an model that features different details of different types of polyps)
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Very cool build! You dont use a differential dont you have the problem with steering (and slipping wheel) because the front wheels are making the same rpm? I didnt read the whole topic, and the answer is already given i think, but i just wondering Keep the updates coming! very nice!
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I made a total shot of the machine (without the underframe) just to see if the scale of the seats compared to the rest is right. the arms are a little to wide (compared to the real thing) but with the supports and drivetrain in the arms its unavoidable. The scale of the whole picture is perfect so thnx for the suggestion for making the seats bigger :)
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[WIP] Bugatti Chiron 1:8
Techniccrack replied to Leviathan's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
no updates of this build anymore? -
Explanation lift system I litle information i received a few requests to explain how the liftsystem works. So here is a scematic of it. I undressed the system a little to be more clear i used a wormgear to prevent slipping and to get a low strong ratio the wormgear drives 2 gear racks that pushed a beam up that is connected to the liftrack. btw: NOT on the scematic is that i used 2 wormgears and 2 hard springs under the liftrack for extra sup[port. but maybe the sceme is not so clear to understand the liftcapacity of the system in the polyp is 3,4 kilograms. gauranteed no slip of gears (or the gears must brake) The building around the liftsystem has to be very strong also. to be continued
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New (bigger) seats Like i promised...i changed the seats. i made them like the design in ldd. ordered the parts and voila: left the old, right the new one: to be continued
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Update: seats adjustments i made a new design for the seats. I looked at the scale and indeed...the seats are to small:) so i adjusted a little. back of seats are longer now. a bow around the seats and the cilinders on the back bigger. the scale is now right.. i didnt want to get rid of the blue technic seats, so i did it this way only building it will be next week i guess. i ordered the necessary parts already:) hers is new design: to be continued
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Dude. I want to thank you. I serious never was aware of that :) Nevertheless the arms contains 3 u joints now instead of 6 btw(!), the allignment wasnt right. I fixed it and the rotation is now good
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You guys are right about the scale. seats wil be adjusted and will be a little bigger. But first i will make everything work properly. after that i will check the scale and everything
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Update, test video stage 3. cross spin test due to lower cilinder and rotation of the machine itself:
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A short spin test with 1 arm. The rotation of the cross (with seats) is powered by the lower rotating cilinder. a simple test, but effective. 21 gears are needed to rotate 1 cross. heres the video: More to come!
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this week (end of week, maybe earlier) i will make the testvideo stage 3. all systems together, spinning crosses with seats and everything
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thnx a little update again. Arms the arms are almost ready. 1 stud wider but no weight increasment Cilinder drivetrain the 4 gears are working perfectly together. no slip anymore and strong Building the structure around the ride i started to build the structure around the ride. the support for the plates underneath is by 16 pieces of 46 long beams. heres a photo of how the supportbeams will be connected to the underframe (an impression of how wide the total project is) total 140 studs wide to be continued
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[WIP] "De Driftkikker"
Techniccrack replied to Permo's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
vet man, ziet er goed uit. is er ook een filmpje van? -
dude. this is so cool, welldone! i really like the color sceme!
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Here an update i finished up the seats (except the lighting because that is for the finishing touch) here 2 photos: Drivetrain of the crosses I had to rebuild the arms because of 5 universal joints the rotation was very bumpy (it appeared in fases of a quarter turn) i rebuild it, arms are 1 stud wider, but the weight has stayed the same How it was: How it is now: problem solved Drivetrain of the lower cilinder The lower cilinder makes it possible to adapt the rotationspeed of the crosses. it was connected to 1 gear on the cilinder, but at a test spin it appeares to weak. it slipped a little so i rebuild it. now 4 gears drives the lower cilinder. Better and no slip anymore From below: from in the cilinder: (axles will be changed but youll get the idea: Liftcilnder upgrade I upgraded the drivetrain of the lift cilinder also. now i used a type 3 turntable and its driven by 4 gears around it.. no slip anymore [/url] a few numbers for now: Total weight is 4400 grams Total parts used: ±12000 to be continued
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I always start a Moc (if its a car), with the drivetrain on the rear. 1. drivetrain rear with suspension 2. gearbox and shifter 3. engine. 4 front part with suspension Basic chassis is now ready 5. the body shaping and dressing up the model I had build my Porsche for the contest like that 2 years ago
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a little update. the crosses are rotating very wobbly (cause of the universal joints in the arms), iam rebuilding the arms. the arms will be 4 studs wide. Head progress it was to small in my opionion. So i have rebuild it. its now 16 studs wide and iam busy buiulding the "octopus" on the head. But... it will be no octopus. I rename the machine in Turbo Spider. Om top of the head will be a spider and also around the machine there will be a spider "layout" with webs and so on. on every seat there will be a mini spider. here some photo of the progress of the head for now: nice detail: the legs of the spider on top are glow in the dark...i thought it will be nice.. to be continued
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a little update i build the polyp with the seats and crosses to show how it looks. the head will be rebuild. it must be a little bigger. the seats are not finished, but its purely for the shot of the whole machine to be contiued
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Ive made my disission. it will be orange little update: Building the seats....repeatbuilding...pff Homer and grandpa are enjoying themselves...(not scale correct but i thought it was nice) Progression of the head: to be continued
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A little update. tomorrow i will build the seats. received the parts for it today. Ive made a design of the base of the seats and put some lightwire on it. I only have to decide witch color lightwire i will use Head progress Iam building the head at the moment, but i am missing a few parts.the yellow parts on top must be blue :), and i am missing some connector parts. those will be in the mail today (i hope) to be continued...
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A lttle update. building the crosses for the seats: Design of the head: Because my polyp its main color is yellw, i think the best color for the octopus on top is also yellow. It fits with the rest of the machine Head will be 13 studs wide to be continued..
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42083 - Bugatti Chiron
Techniccrack replied to Jurss's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Why so negative? You dont know how its turns out. You want to see lego building a life like car with all the functions of the real thing? You want to see real fuel injections or something? 7 speed gearbox..mmm...why not? the PDK gearbox on the porsche it was considered impossible early on. and tada! they done it! I think (i hope) it will be a blast and a real cool model