Hello and thank you for showing interest. This project comes with a model that isn't hollow if you just want to print this out, it comes also in pieces and hollowed form for room for 2x SG90 cheap servos and arduino nano board + battery for powering them. Cable work you can see in the pictures.You can always slice to pieces in software like flashprint if you really want to make larger one or you only have a small printer. If any problems occur let me know :)This will need some basic tools, but in the end is extremely easy and user friendly way to start creating stuff like this.

List of items needed:-3D printed parts-Drill/handdrill-Arduino nano-jumpwires-2X small servos IE SG90 or MG90-2X long enough screws to get through jaw plate and body to the servo-Metal wire to create small poles that hold top and bottom cover together. You will also put a metal pole from the wire to the top and bottom jaws as seen in the video. In the video you can see screw on the bottom jaw and metal wire on top jaw to hold it in place while servo is on the other side.-Hot glue for securing components in place-Button and 10k resistor. Button can be placed anywhere depending on what kind of button you end up using.