Assembly Assistance for the Printrbot Simple - 3D Printing: Build your Own 3D Printer and Print your own 3D Objects - page 62

Keep in mind that the assembly instructions for the Simple are a work in progress.
If an error is found, it's usually fixed quickly and an update is posted online. In
fact, as I wrote this, I went over the assembly instructions and found two new steps
for creating a flat surface on the extruder motor's axle with a file. Those weren't
there yesterday, and I'm glad I found them because it's an easy thing to remove
the extruder motor and perform this step.
So, I'll wrap up this chapter by summarizing some of the lessons I learned during
my Simple build:
• Don't overtighten your M3 bolts.
• Look at photos to determine where a zip-tie nub is placed (and on what side
of the wood).
• An extra set of hands is always nice, especially when wrapping the fishing
line around the vinyl tubing on the X and Y motors.
• Use a ruler to measure the length of bolts; don't eyeball them.
• If a step doesn't call for wood glue, don't use it!
• Use a screwdriver and pliers to tighten a zip tie one or two more clicks.
• When hammering in the 10” metal rods for the Z axis, use a rubber mallet and
go slowly. The metal rods do not need to go all the way through the holes on
the very bottom of the Simple; 3/4 is fine.
• When in doubt, contact tech support at ( http://www.jotformpro.com/Prin-
trbot/support-ticket ) or post a question on the forum ( ht-
tp://www.printrbottalk.com/forum/ )
I wish you the best of luck as you build your Simple! It was fun to build, and I
cannot wait to fire it up and start printing, which is the focus of Chapter 4 , “ Con-
figuring the Software . ” I also show you how to test your Simple to make sure
everything works as designed, and then we print a test item. Let's go!