Animatronic mini Ear module

thingiverse

These are the ears from my animatronic mini head which fit onto the eyes I uploaded last year. The base plate has room for four servos. The front two are for optional eye brows and the back two are for rotating. The up/down motion is made by servos below the eyes as can be seen in the video. All the parts were printed in ABS and treated with an acetone vapour bath to make everything very smooth. After the vapour bath all holes were drilled to the correct size because the ABS would deform a little during the process. Please note that some parts require extra sanding to make all parts fit. This is a list of all the hardware I used to make a pair of ears: Please note some things can be made differently and lengths can vary in your design. 4X MG90S mini servos 12x MF63zz ball bearings 20x M2 nuts 4x M3 nuts 2x M3 lock nuts 24x M2x12 screws 16x M2x5 screws 2x M3x16 screws 6x M3x12 screws with sunk heads 2x M3x5mm hex spacers FF 4x M2x10mm hex spacers FF 2x M3x5mm hex spacers MF 2x ball and roller links 3.9x2x16mm (230060x10) 2x 15x2mm rods (old bicycle spokes) 2x 35x2mm rods with threads (old bicycle spokes) 2x 45x2mm rods bent (look at pictures closely because this part can rotate freely when ears move up and down) 8x cable shoes with 2mm holes The plate where the up/down servos are mounted on is not included! I used cable shoes which I modified a bit for the connecting rods but this is not an exact science. You can use other ways like Pushrod Linkage Stoppers or Ball connectors. I just didn’t have enough of these parts so I used the cable shoes. I uploaded only one side. To make both ears you simply need to mirror all the parts except the base plate of course. The sandwich plates are there because it wasn't as solid as I hoped. There was a little bit of flex between two modules. So I made two plates out of 3mm acrylic. This made it very solid. I made a short video to demonstrate the head. https://www.youtube.com/watch?v=92OUb4uLUhk Here is the link to the eye module: https://www.thingiverse.com/thing:2668124 All servos are controlled by a 32ch servo controller running a script on my laptop and sending commands to the controller over USB. These controllers are widely available on Ebay and other sites. I'd like to see your applications and extensions for this.