![halloween 3d print halloween 3d print](http://3dprint.com/wp-content/uploads/2015/10/3dp_halloween_articulatedspider-e1445240657406.png)
I used a half breadboard to wire everything up. The program is using pins 3 through 12 for the servo signal lines.
#HALLOWEEN 3D PRINT CODE#
The source code can be found on GitHub.Įach servo has an input for signal, 5 volts, and ground. All the logic had to do was set a random servo to a random value, wait a small amount of time, and repeat. I was able to use an existing library to control the servos. I was concerned about the power requirements for 10 servos, so I decided I would only move one or two servos at any given time. I have however experimented with the Arduino platform, usually for blinking some lights. I had never worked with servo motors before this project. After assembly, I found a little hot glue assisted in holding everything together tightly. I used straightened paper clips as the axis connecting the eye and outer ring as well as for connecting the servo to the back of the eye.
#HALLOWEEN 3D PRINT HOW TO#
There were several variations while attempting to get the size correct, creating holes where toothpicks could attach to the pumpkin, and figuring out how to attach the servo. There was also an outer ring that was designed for the eyes to rotate in. In the morning it hit me that I could 3D print the spherical back half of the eye that would perfectly snap inside the eye! Add a hole for an axis to go through and a small protrusion for the servo to attach to, and I had spherical eyeballs. It was one of those moments where I must have been thinking about it while I slept. A downside is that I didn’t want to rotate the eye very far or the viewer would see where the eye ends. At first I designed a rod that would come out of the back of the eye so that the servo had something to move. The eyes I am using are hollow half-spheres. The great thing about a 3D printer is that it is relatively easy to print off an idea, hold it in your hand, and see what does and does not work well.
![halloween 3d print halloween 3d print](https://i.pinimg.com/736x/a9/d7/e4/a9d7e4977791645dc46faccd6d1febb9--bear-mask-cardboard-mask.jpg)
It would need to have the eye connected to an axis, then a way for the servo to tilt it back and forth from behind. Wires for connecting the Arduino and servosįor me, the most time consuming and most satisfying part of this project was figuring out the mechanism for holding the eyes.Arduino Uno or compatible microcontroller board.Since I had a 3D printer available, I decided it would be a fun project to design and print my own holders for the eyes. A similar build I saw used fake eyeballs pierced with a nail, hot-glued to short sections of PVC pipe. The basic concept is to control servos to randomly move plastic eyes back and forth. I wanted to share with you how I built the pumpkin, and some of the technical aspects that went into it. But how about making your pumpkins come to life? This Halloween we all love spooky, creepy, and generally ghoulish ideas. How you can use Arduino and 3D printing to create a scary-eyed pumpkin this Halloween