just getting started

[Oldsch]

Hi, oldshl here. New to your community. I'm interested in up-size scaling from an existing model and trying to figure out how to get started. I have little/no experience/ knowledge/equipment about digital/3D scanning & printing. That being said, I'm hopeful this forum will shorten my learning curve or convince me that what I hope to accomplish is/is not DIY possible or cost effective.

So what I would like to do is: 3D/scan/digitize scale model die cast cars & motorcycles, enlarge & have them 3D printed in whole or in parts that can be assembled to create a full scale replica of said model. Unblemished detail is not a deal breaker as the replica will only serve as a mold for the finished product. The up-scaled replica will be used as a mold for lightweight fiberglass towable trailers/sidecars for two seat style roadster automobiles & motorcycles. This idea sprang from my desire to take my 70lbs boxer with me on roadtrips. weigh in and educate me..

 

[TazMan2000]

To quickly answer that, this would take an expensive 3D scanner. In addition you will need experience in a GOOD 3d editing software package to edit the 3D model. To print it in lifesize, you would need a very large printer and have to glue all of the parts together. After each piece cools, it distorts slightly and gluing several hundred together you probably won't get a perfect fit on each piece. You will probably get a car body that looks like it was made out of lego.
In order to make a casting of the body, you would need to fill in all of the holes, separations, layer lines and sand, fill, sand, fill, sand, fill.....
Large pieces on a 3D printer can take a while to print, from several hours to days depending on the complexity and how thick the layers are.
I would estimate if would take about a year to print out the body of a VW bug if you ran a printer 24/7. That is if you have zero print failures. I would not recommend using PLA as it is a surprisingly resilient material, but doesn't like being mechanically sanded, because it starts melting quickly.

TazMan2000

 

[TazMan2000]

In addition, you posted in Commercial Kit Builds. I understand why you may think this would be the proper place to post, considering the scope of your project, but I believe this forum is for Studio Scale and larger builds of commercially available kits.
Moderators correct me if I am wrong.

TazMan2000