How to build pib´s elbow
pib’s elbow consists of 13 printable parts and is assembled in 12 steps.
Place 12 x nuts in the shown spots in C11.
Place E07 inside C11 and use 4 x 10mm screws to hold it
Place 2 x nuts in the shown places in C15, then use 2 x 8mm screws to connect C15 to C09.
Place 4 x nuts inside C08, then place M06 and M07 into C08 with shown orientation. Repeat this step to have this assembly twice.
Now, connect the assembled parts from the previous steps in the shown orientation.
Now, connect the assembled parts from the previous steps in the shown orientation.
Use 1 x 10mm screw to connect the servo to the assembly.
Place the second C08-assembly in the shown orientation.
Connect C13 and C14 to the assembled parts. Use 8 x 10mm screws for the lower holes and 8 x 12mm screws for the upper holes to connect it.
Connect C13 and C14 to the assembled parts. Use 8 x 10mm screws for the lower holes and 8 x 12mm screws for the upper holes to connect it.
Place 2 x M03 in C11 and add 2 x C31 to the assembly.
Place 1 x nut in C16. Repeat this step to have it twice.
Use both C16 and 2 x 20mm screws to connect C10 to the assembly from before.
Insert 2 x metal rods into the shown holes till center point. Then, place the hooks of the tension spring into the shown spots and push the metal rods till the end to secure the spring.
Please note: you may need to apply gentle force to push the rods into the holes.
Finally, to enable motion of the elbow you need to insert a piece of 40 cm teflon tube inside C10 and lock it with C25.
Use 2 x nuts and 2 x 10 mm screw to attach C25 to C10.
Last, enter 60 cm of fluorocarbon string into the teflon tube and tighten it by tying a knot.
Congratulations, you did a great job, the elbow is assembled!
In order to construct the elbow, you will need these printable and non-printable parts:
| Printable parts | Non-printable parts |
| 2 x C08-Central_rotator_bracket | 1 x E07 MG996R Servo |
| C09-Central_rotator_connector | 2 x M03 medium sized ballbearings |
| C10-Elbow | 2 x M06 Ballbearing_Axial 70x50x3 |
| C11-Elbow_servo_scaffold | 2 x M07 Thrust_bearing 70x50x1 |
| C13-Elbow_shell_lower_dorsal | 28 x S01 M3 nuts |
| C14-Elbow_shell_lower_medial | 2 x S03 M3 8 mm screws |
| C15-Central_rotator_motor_connector | 15 x S04 M3 10 mm screws |
| C16-Elbow_joint_connector | 8 x S05 M3 12 mm screws |
| 2 x C25-Tube_cover | 2 x S08 M3 20 mm screws |
| 2 x C31-Wire_cover_upper_arm | 2 x M08 20 mm metal rods |
| 1 x M12 T700 Spring | |
| 40 cm Teflon tube | |
| 60 cm Fluorocarbon string |
