6
3D Printing Your Robot:
This manual shows the construction of the robot using aluminum for the main structural
components but the robot can also be constructed using all 3D printed components. The .stl
print files for all components are here: https://www.anninrobotics.com/downloads The
construction illustrated in this manual is the same using either aluminum or 3D printed
components - note the following details if using 3D printed components:
• 3D printed components require all threaded holes to be cleared with appropriate drill
size and then tapped.
• All printed structural components were printed at minimum 50% infill with the exception
of the J2 and J3 drive spindles and tension rings which were printed at 90%+ solid. Parts
were printed at 2mm layer height and 5 layer thick shells.
• All printed covers and spacers were printed at 20% infill at 2mm layer height and 5 layer
thick shells.
• The robots I have 3D printed were made using ABS at 220° nozzle temperature. I have
not personally tried using other materials but I have received feedback from numerous
people who have used PLA, PET and carbon fiber reinforced filaments without issues.
• The J1 baseplate, J1 baseplate spacer and J2 arm larger than most 3D printer beds and
therefore are printed in 2 pieces and require being epoxied together.
• The J1 spindle is printed in 2 pieces and requires the center alignment plug be epoxied
into the end of the spindle – this is the center hub that centers the 60T timing pulley.
• The printed design calls for additional reinforcements to be epoxide in place around the
J1 base and at the base of the J2 arm (see details at the end of this manual)
• The J4 tube cannot be 3D printed; if building a fully 3D printed robot you will need to cut
and drill aluminum tubing as shown in structural components BOM section of chapter 1.
• 2 spools of filament are needed for printing the primary structural components. A 3
rd
spool is needed if you wish to print your covers and spacers in a different color.
To Next Page
Loading...