martijnnab Posted April 5, 2015 Posted April 5, 2015 (edited) All, I am trying to build the core structure of a Cadillac Eldorado Biarriz 1959. As it's a convertible the chassis needs to be very strong as I have no roof to support it and the door should open up. So except for the center 3 studs, the chassis can only be 2 studs high, especially in the center where the seat are. I have created a structure that works ok for now, but seems quite "solid" and require a lot of beams. Anybody any ideas on how to make it as stiff as possible while potentially reducing number of parts needed? Top View Update 21-04-2014 The front shape is starting to look like the real thing. Next step the bonnet..... Update 30-04-2015. Bonnet and dashboard are ready, lights and motor wiring all routed to the back, time to model the backside section!! :sweet: Edited May 1, 2015 by martijnnab Quote
BusterHaus Posted April 5, 2015 Posted April 5, 2015 Try 5x7 frames with long beams on top and bottom, like you have now. They are more rigid than a middle layer made of beams. You can also use the seats themselves as a structural element. Quote
martijnnab Posted April 5, 2015 Author Posted April 5, 2015 That a good idea. Hadn't considered using the 5x7. Might work out real well. I will give it a try. Quote
martijnnab Posted April 5, 2015 Author Posted April 5, 2015 (edited) Try 5x7 frames with long beams on top and bottom, like you have now. They are more rigid than a middle layer made of beams. You can also use the seats themselves as a structural element. Tried that and was confident it would work, but actually I can`t get it as strong as the first version: Probable cause is that I can make less vertical connections due to less holes in the 5x7. Under heavy load the beams split apart then. The original (upper) version cannot be "disassembled", even if I bend it with both hands at the ends.... Edited April 5, 2015 by martijnnab Quote
BusterHaus Posted April 6, 2015 Posted April 6, 2015 I tried it here, here are the results with 960 mL juice boxes: Here is the structure as seen from the top: The structure should be mounted upside-down from what you see here if you decide to use it. It still has a bit of flex to it and I don't think you can eliminate it. That being said, it can be reinforced by adding the body of the car. The weak point will be the door openings, but you can reinforce that section with the center console stretching under the seats and by adding another layer of beams at the door openings, just like the picture of the real car shows. I get the impression that the final product can be quite rigid, but not by having a separate chassis and body. Quote
martijnnab Posted April 6, 2015 Author Posted April 6, 2015 (edited) Wow, that structure is really strong and would get the job done. The thing is that I don't want the top layer to be more then 3 sections wide to mimic the real drive train column as present in the real car. The rest should be as flat as possible, especially where the seats are not present. The grey section as well as on top of the motors is where the seats will be. Thanks for you effort and any further improvements or adaptation are welcome. Martijn Edited April 6, 2015 by martijnnab Quote
Sylvian Posted April 6, 2015 Posted April 6, 2015 I hope you will give it a solid rear axle.. looking forward to the rest :) Quote
Graydingo Posted April 7, 2015 Posted April 7, 2015 The old school studful technic beams are super rigid. I was thinking of using those at one point to make my chassis more stiff. Quote
martijnnab Posted April 21, 2015 Author Posted April 21, 2015 The first glimps of a real Cadillac is starting to emerge from the beam. Getting the front grill right what quite tough, but necessary to get it right as it is one of the signature features. Next step, the bonnet, and then still the whole huge back section, so still lot's of work to be done. Quote
__________________________ Posted April 22, 2015 Posted April 22, 2015 The first glimps of a real Cadillac is starting to emerge from the beam. Getting the front grill right what quite tough, but necessary to get it right as it is one of the signature features. Next step, the bonnet, and then still the whole huge back section, so still lot's of work to be done. Looks great! Quote
BusterHaus Posted April 23, 2015 Posted April 23, 2015 It's looking pretty sweet, especially the front grill and the seats. Are you using the chassis you showed or did it change again? Quote
Rishab N Posted April 23, 2015 Posted April 23, 2015 I love the front grille. Looking forward to more progress Quote
darksheep Posted April 23, 2015 Posted April 23, 2015 Wow it's starting to look really good , look forword to seeing the end result . Quote
D3K Posted April 24, 2015 Posted April 24, 2015 Wow, this is surely looking like it's going to be pretty awesome when it's done! Love the grille and the way you made the curved side of the "bonnet" above the wheels! Quote
super-jaschka Posted April 25, 2015 Posted April 25, 2015 I can not wait for the final MOC I love vintage cars I hope it will be a masterpiece Quote
martijnnab Posted May 1, 2015 Author Posted May 1, 2015 It's looking pretty sweet, especially the front grill and the seats. Are you using the chassis you showed or did it change again? I used the chassis of 3 studs wide (my original). It is stong enough to hold it whole together. The build is going pretty good. I am progressing at a steady pace. The front is close to finished!! Quote
khuizer Posted May 1, 2015 Posted May 1, 2015 Well, as my first message on this forum I have just one thing to say : Awesome!! I surely hope you are going to be doing instructions for this one Quote
martijnnab Posted May 9, 2015 Author Posted May 9, 2015 (edited) My Cadillac is finished, for more info visit the following forum item: http://www.eurobrick...howtopic=109260 Edited May 9, 2015 by martijnnab Quote
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