Find Yourself a 3D Printer - 3D Printing: Build your Own 3D Printer and Print your own 3D Objects - page 30

If you're comfortable using a screwdriver or wrench, you should be okay putting
your 3D printer together. Most 3D printer assemblies require few other tools, but it
never hurts to ask. For example, be sure to ask if you need an Allen wrench. This
is a cheap and easy tool to pick up at the hardware store, but you'd be surprised at
how many people don't own a set. See the Allen wrench set in Figure 2.5 if you're
not familiar with them.
Figure 2.5 A set of Allen wrenches.
Consider your own comfort level, too. Not everyone enjoys taking a bag of 50 or
even 100+ parts and putting it all together. I've put together three 3D printers over
the past few years, and I'm comfortable reading instructions, asking questions, and