Folding Grabber/Trash Picker

When folded (300mm), this 800mm (32 in) folding grabber easily fits in your glove box or backpack. The folding arm prints-in-place and the handle and gripper easily snap together. To assemble, you will need 1 thin rubber band (about 50mm unstretched length), about 2m of thin cord, and optionally, 5 M3 screws (anywhere from 8 to 12mm long).

Assembly
After printing, you will first need to remove the 2 small built-in support rings from the hinge knuckles as shown:

Next thread your cord through the hole in the end of the trigger piece as shown (I used Spectra fishing line, but something like embroidery thread which is thin and stiff will work well too):

Make the tails equal length. (You can tie a knot at this point to keep the ends even if you like. Thread the two tails through the center hole of all 3 sections of the folding arm.

Assemble both fingers into the gripper base as shown:

Insert the your rubber band into the slots in the bottoms of the fingers as shown:

Place the gripper sub-assembly onto the end of the arm and thread the two tails through the middle of the rubber band and then on either side of the center posts of the two fingers as shown:

Snap the other half of the gripper base over the two fingers. The two halves should snap together, but if they are a little loose, secure them together with two M3 screws. Pull the two tails taut and tie a square knot, pulling the knot snugly against the posts, but not so tight as to start to close the fingers.

Now you can snap the two handle halves together, and again if necessary), screw together with 3 M3 screws. You should now be ready to grab!