Assembly Assistance for the Printrbot Simple - 3D Printing: Build your Own 3D Printer and Print your own 3D Objects - page 40

Figure 3.3 My laser-cut parts are ready to be assembled.
I can't speak for all 3D printer assembly instructions, but I have found that reading
through the instructions one or two times prior to beginning assembly often helps
to visualize how everything is going to come together. One thing I like about the
Printrbot Simple instructions is that there are multiple photos for each of the steps.
If you move your mouse pointer over another photo, the main image changes. Do-
ing this can often help you to verify that you've got a part oriented properly when
connecting to other parts.
Note
You might want to lay out all your wooden pieces and try to match them
up to the ones shown in the official assembly instructions. It's a great
way to make sure you have all the wooden parts before you begin as-
sembly.