3d models

 
 
 

Creating a 3D (three-dimensional) digital model that meant to become a physical one is a process that requires skills of digital modeler combined with knowledge and experience of traditional model maker. Today there are many that learnt how to build 3D digital models. However a 3D model that meant to be used to build a physical model has to be designed specifically for this purpose which can be done by model maker only.

It is also a mistake to use a 3D data of a life size subject for model making just by scaling it down.  Along with scaling down a subject wall thickness of all parts and components will be reduced accordingly and become paper thin. Basics of part break, wall thickness limitation and durability of materials anticipated for model's elements have to be included in digital model from the beginning. A model maker has to design not just a digital model and not just a model of a subject, but a future physical scale model, designing it along the process. Parts break has to ensure a convenience of parts clean-up, painting and assembly. Connections between the parts have to be established and a model maker has to decide whether screws, pins or other fixtures or connection methods will be used. Vulnerable thin parts have to be determined and treated in order to increase their durability. Some of such vulnerable parts have to be beefed up, some - to have channels to insert reinforcement rods or profiles, some have to be assigned to be produced out of more durable material.

A decision which elements will be produced by which specific rapid prototyping technology also should be made at a digital modeling stage and parts have to be designed accordingly to requirements of an assigned technique.

Some parts and components are easier or more cost effective to fabricate using traditional ways. Such elements also have to be determined and treated for wall thickness. These parts and components will still appear in a 3D model, for presentation purposes, however they will not be included in digital tooling files. 

Generating 3D renderings also should be kept in mind. Often a parts break include division that is not relevant for future model yet allows easier application of textures and colors convenient for generating renderings. Sometimes 3D model includes parts that will not be included in digital tooling only to show these elements on the renderings.

It is also important to keep files lightweight, therefore in most cases 3D model is being designed in much smaller scale than a physical model will be. And only the files of a digital tooling will be of actual size.

There are many other aspects relevant for a future physical model, that have to be calculated and premeditated during digital development stage, otherwise a digital model will be useless.

 

3D Models Samples - Screenshots

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