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Author Topic: FINALLY Building a scale model. (Need some help first)  (Read 1729 times)
drxlcarfreak
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« Reply #15 on: October 26, 2008, 04:58:06 PM »

DOH!!! After I glued one side of my model together and cut ALL of the pieces, I realized that these sheets are not 0.5" thick exactly... On average they are 1/16" larger! After measuring my model, I am 3 inches longer than I am supposed to be and on the front and back pieces I am 1" too wide.

I know its only a scale model to see my design in real life so I will leave the length issue alone and just remove 2 pieces from the front and rear, but if anyone wants to use this method for full scale (As I was) this would translate into 15" too long and 5" too wide!! So beware!!

Actually now that I am thinking about it, maybe the 3 inch difference would change the way it is represented. What do you guys this?
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FastAndFunky
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« Reply #16 on: October 27, 2008, 03:15:54 AM »

remember when you finish it you can always sand it down so you will lose some size on it then
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« Reply #16 on: October 27, 2008, 03:15:54 AM »

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drxlcarfreak
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« Reply #17 on: October 27, 2008, 06:04:59 AM »

This is true. But I really wish I saw this before I glued the one side together! 3 inches is 6 pieces of foam I could have removed in the middle where it wasnt too noticable! I may try and do this still.

Below is what I have gotten so far. The front end by itself is the full front end. Attached to the car I removed three pieces to make it fit. Kind of lost its flow I think.









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FastAndFunky
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« Reply #18 on: October 27, 2008, 07:48:10 AM »

Looking really good Smiley
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drxlcarfreak
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« Reply #19 on: October 27, 2008, 09:45:46 AM »

Thanks! I can't wait to get off of work and buy some joint compound to start filling it in!
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FastAndFunky
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« Reply #20 on: October 27, 2008, 09:47:57 AM »

Its looking really good:) are you plans to make a full size version?
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drxlcarfreak
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« Reply #21 on: October 27, 2008, 10:11:53 AM »

Of course!! I just wanted to see what it looked like i real life. The computer screen seems to distort perspective alot. Although because this is 10% longer than its supposed to be it probably isnt the best representation! Everytime I glance at it from across the room it makes me happy that I finally have something in reality though!
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ftaffy
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Lotus 7 replica... in a million pieces.


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« Reply #22 on: October 27, 2008, 05:51:41 PM »

Its looks very koenigseggish at the front and possible a bit of enzo at the back?
Look very nice either way, cant wait to see it finished. Did you plan to clay mold the outside to be as wanted then 3d scan it back in? (Before you found it was longer then you wanted). Or just work straight from the CAD in a the same way as you made the model?

Im think of going that way with the body work for a lotus 7 replica i have. Make a 1:24 scale using foam and clay then scan it in, fix up the mount points etc then make the parts. I have never tried it so it may be a fun learning curve....  Shocked
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FastAndFunky
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« Reply #23 on: October 27, 2008, 05:57:42 PM »

You have put alot of work into it you should be happy each time you look at it Wink

Of course!! I just wanted to see what it looked like i real life. The computer screen seems to distort perspective alot. Although because this is 10% longer than its supposed to be it probably isnt the best representation! Everytime I glance at it from across the room it makes me happy that I finally have something in reality though!
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drxlcarfreak
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« Reply #24 on: October 28, 2008, 06:01:29 AM »

Really? I myself didn't really see those two cars in my design. I would say other cars have influenced my design, but those not too much! I was planning on using joint compound to fill where I needed and sand down to a rough finish and then seal it with an epoxy and do a final coat with bondo or body filler because it is stronger. The plan was if I was pleased with the model to just print templates out full size via my CAD model.

I would recommend something larger than 1:24 scale. Even 1:5 scale would be hard to get any definition in the model to scan it back in. Just my $.02

Thanks!

BTW, I spent last night fixing my length issue. Instead of removing all 6 ribs necessary (Made the car look stumpy) I removed 4 overall. Will post pics once its glued.
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rusty
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« Reply #25 on: November 25, 2008, 05:47:03 PM »

Looks like a very nice design. What software did you use?
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jelpspeed
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« Reply #26 on: December 02, 2008, 02:49:41 PM »

hi, any updates on your project?

JELP
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drxlcarfreak
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« Reply #27 on: December 30, 2008, 10:39:36 AM »

Hey guys, sorry, I was out of the country for awhile and when I got back this thread was already back down the list! I used 3D Studio to model the car and used the slice command to make the slices. I then imported those slices into AutoCAD where I could print out each slice to scale.

I do have a few updates to my car. I have rough sanded the foam and completely sealed the left side of the car with thinned epoxy and have begun adding body filler to it. It is on there very rough right now but I can see it beginning to take shape! I dont have any photos of it right now, but when I get home from work I can definately upload some for you guys to see!

I do have a few questions for those skilled with body work. I am using 60 grit sand paper right now and a dremmel tool to clean out the tight concave areas. Are there any other tricks to smoothing out the hard to reach places? I can show you what I mean when I upload pictures.
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prototype2
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« Reply #28 on: December 30, 2008, 01:33:24 PM »

use a hot knife, you can purchase it at any craft shop for 20-30 bucks
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drxlcarfreak
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« Reply #29 on: December 30, 2008, 05:24:22 PM »

Well, as promised here are the updated shots! The first two are the foam sanded down with a coat of epoxy so the bondo didnt melt all the hard work I put into the foam. The rest are about 3-4 coats of bondo with 60 grit sandpaper. Be gentle, this is the first time I ever touched bondo or any kind of project of this type! It looks as though I also need to take photography classes!

Will the hot knife cut through the bondo? I thought those were only good for the foam.






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