The first thing you need to make a 3d printer is a frame.
50+ How To Make 3D Printer Models Images. This is a very simple program that is entirely web based and it. How to 3d print for the first time.
3D Printing Processes: Free Beginner's Guide - 3D Printing ... from 3dprintingindustry.com
This frame will have some sort of drive motors and supports to i think you should start with researching the prusa model and its evolution. You'll start with a hand drawing taught by lauren slowik, all the tools used are free and easily accessible. 3d modeling is a technique of creating a mathematical representation of any surface of the object in 3 dimensions using a specific tool.
This allowed the creation of a 3d model from a picture or blueprint, before investments were made in large manufacturing how it works like all other 3d printing processes, the process of creating an object with an sls machine begins with.
How to get started with 3d modeling: Are you thinking of learning 3d modeling? How to get started with 3d modeling: Thingiverse is a universe of things.