This page starts by looking at drawing an idea.
You need to draw in 3D, this tends to be Isometric and/or 2 Point Perspective. Practice always makes perfect, so no matter where you are - sketching whats around you every so often will help you develop this key skill.
2 Point Perspective
1,2,3 Point Perspective
Isometric Basics
Crating
Crating and CIRCLES in 3D
Shadow
If you need to access isometric paper to support you can download and print from https://www.printablepaper.net/category/isometric_graph we would encourage you to try and avoid relying on isometric paper, as you wont always have it to hand and as you develop it can hinder your design thinking.
Improving drawing
Rendering a drawing
Sketching A Bike LIGHT
Here are a few clips to allow you to try different tasks and experiences to perfect your techniques
quick over view to get you going and gain in confidence
Exploring the graduate level work
2D with rendering is another method used
The main method of creating plans/engineering drawings or to use their technical name 'orthographic drawings' can be found here. There are two main methods (1st and 3rd Angle) which we won't cover right now. This is a useful guide as to how do use this method of drawing using pencils and basic graphics equipment