Isometric Grid In Illustrator. You can create isometric graphics in illustrator by using an isometric grid (as seen in the image below). You can visualize as you want.
How to Create an Isometric Grid in Adobe Illustrator from www.pinterest.co.kr
You can find axonometric parts suitable for your. Use the line segment tool. The basic floor isometric grid is simply 2 lines in a 30 and 150 degree (120 degree separation) to the main grid of illustrator.