pib’s hand consists of 10 printable parts and is assembled in 22 steps.
Step 1
Step 1
Guide the fluorocarbon string from each finger to the bottom hole of D02, then to the lower hole in the same line in D04.
Step 2
Step 2
Place 4 x nuts in the shown spots of D02.
Step 3a
Step 3a
Insert the metal rod into D13.
Step 3b
Step 3b
Then, place a M10 spring on the metal rod and add 2 x M01 ballbearings, one from each side of the rod.
Step 4
Step 4
Insert 2 x teflon tubes with each 65 cm length into the shown spots of D02, then insert 1 m of fluorocarbon string into each tube.
Step 5
Step 5
Connect the highlighted one from the top of D13 to the upper left hole and lower right hole and tie a knot.
Step 6
Step 6
The other string should pass by the shown hole to be connected to the thumb later.
Step 7
Step 7
Place D13 in the shown spot in D02 and insert the end of the spring to ist designated hole. Try to shorten the spring with a plier.
Step 8
Step 8
Insert 80 cm of fluorocarbon string through the shown hole and tie a knot, then leave it loose to be used to motorize the wrist in the forearm tutorial.
Step 9
Step 9
Hold D13 with your finger until you place D11 and D12. Place 2 x nuts in the shown spots and close them with 2 x 25 mm screws
from the other side.
Step 10
Step 10
Put D18 in the shown spot above the tubes and place 1 x nut in it.
Step 11
Step 11
Use 2 x 22mm screws and 1 x 30mm screw in the shown spots and tighten them to connect A04 to A02.
Step 12
Step 12
Place 8 x M01 ballbearings in the shown spots of D02.
Step 13
Step 13
Place the end of the torsional spring attached to the finger into the left hole. Repeat for each finger.
Step 14
Step 14
Insert metal rod in the shown hole to fully attach the finger to the hand. Repeat for each finger.
Step 15
Step 15
Insert each string from the finger into a teflon tube.
Step 16
Step 16
Close the tubes with D10 and 2 x 18 mm screws to secure it.
Step 17
Step 17
Push 1 metal rod with a tool through D10 until you reach the half, then place 1 x T460 spring on the rod. Push then the rod till the end.
Step 18
Step 18
Place 4 x M01 ballbearings in the shown spots of D14.
Step 19
Step 19
Place 1 x M10 spring in the shown space of D13, then place D14 on the other end of the spring and secure the assembly with a metal rod.
Step 20
Step 20
Place 1 x M10 spring to D16, then insert it into the shown hole in the thumb and attach them by using a metal rod
Step 21
Step 21
Pass the wire from step 6 to the shown holes in thumb and D16 and tie a knot.
Step 22
Step 22
Finally, place 1 x nut in the shown spot of D16, place D09 on top of D16 and tighten it by using 1 x 16mm screw.
Final
Congratulations
You did a great job, the hand is assembled!
In order to construct the hand, you will need these printable and non-printable parts: