InMoov - Advanced Eye Mechanism

thingiverse

This is an advanced eye upgrade for the InMoov robot. It features eye lids and independent movement of each eye. The design files include a drill mount for sanding and painting eye balls. Demonstration videos @: https://www.youtube.com/channel/UC-TVs2NgcdnF-nCaefCc6zg https://www.youtube.com/watch?v=2tN2dbpm3rc https://www.youtube.com/watch?v=9xMmtNk8nvE Note: this is a difficult build as clearances are small and some specialized tools may be required for assembly. You Will Need: 6x SG90 servos with related hardware and horns https://www.amazon.com/J-Deal%C2%AE-Micro-Helicopter-Airplane-Controls/dp/B00X7CJZWM/ref=sr_1_3?ie=UTF8&qid=1506426852&sr=8-3&keywords=sg90 2x 2-56 threaded ball joints https://www.amazon.com/Great-Planes-Threaded-2-56-Ball/dp/B001BHEFUM/ref=sr_1_sc_3?s=toys-and-games&ie=UTF8&qid=1506223441&sr=1-3-spell&keywords=2-56+thraded+ball+links 2x 2-56 threaded 12" long pushrods https://www.amazon.com/Du-Bro-801-2-56-Threaded-6-Pack/dp/B0006O4HQS/ref=sr_1_1?s=toys-and-games&ie=UTF8&qid=1506224591&sr=1-1&keywords=du-bro+rod 4 pushrod to servo horn couplers https://www.amazon.com/Du-Bro-Connectors-Re-Usable-Nylon-12-Pack/dp/B0006O8U0M/ref=pd_bxgy_21_img_3?_encoding=UTF8&psc=1&refRID=T6TWGRKJFR511VMMFAY5 2x cameras https://www.amazon.com/Small-Camera-micro-security-Surveillance/dp/B00WSJIMJC/ref=sr_1_12?ie=UTF8&qid=1506426350&sr=8-12&keywords=600+tvl+camera monofilament or braided fishing line in 6 to 8lb test Forceps - The non toothed type used for stitches (used to aid installation of fishing line and hinge rods) small phillips head screw driver (mounting servos and servo horns) riffler files I will be adding a assembly manual with instructions as soon as time allows. Extra points for building before instructions are released. lol Preliminary instructions: (You may want to print these for easy reference!) * These instructions are preliminary and by no means complete!! * ** Parts require filing for proper fit as they were designed tight to adjust fit by hand. ** *** hook servos to control board and center them before assembly *** 1.) Print all .stl files with a maximum layer height of .1mm for best results. (recommend printing eyeballs first so you can sand and paint them while everything else prints) File rough edges with riffler files and chase all .072" holes with a .07" drill bit except for servo screw holes on servo frame. 2.) Sand and paint eyeballs to your taste using the eyeball cordless drill finishing mounts with a metric screw in the mounts for drill chick. I painted my irises at a .5" diameter as this is the diameter of average human irises (some like the large iris of the original InMoov eyes) 3.) *Optional* Mount cameras (camera specs will be in official instructions when released) into back of eyeballs. Fix in place with a tiny bit of CA glue. Also fix wires off to side as pictured in eye photo being careful not to add height as the cameras barely fit without hitting gimbal. 4.) Using a hacksaw or jewelers saw, cut and chamfer ends of two 8mm, four 6mm and four 5mm pieces from the non threaded end of one of your pushrods. The 8mm are used for eyeball gimbal to servo frame attachment, the 5mm are used to mount the eyeballs to the eyeball gimbal, the 6mm are used to attach the eyelids to servo frame. 5.) Using small bit of pushrod from last step, attach the gimbals to servo frame with 8mm length rods. You will need the forceps to hold rots for insertion into holes without damaging them. Next mount eyeballs to gimbal using 5mm rods taking note of camera orientation for correct image. Next install ball part of linkage on the beam between eyelids on both pairs. then install eyelids to servo frame using the 6mm rods. 6.) install servos, horns, printed servo horns and, linkages as pictured. bending of connecting rods is necessary to make connections. 7.) Use 6-8LB test monofilament fishing line or similar diameter braided line in four 12" sections. this will leave alot of excess but will be easier to work with in this length. Using forceps to help, use Rapala knots (google it) to tie the four sections of string to each of the side holes in eyeballs. Fish the 4 lines up through the holes in the servo frame. Wrap the lines around printed servo horns of upper servos a couple times and affix them using servo horn holes. 8.) Position completed mechanism behind mask and glue in place. (I recommend hot glue so it can be removed later if needed for maintenance or upgrades as I refine the mechanism)