GADGET the robotic Gremlin

cults3d

This is Gizmo, the robotic gremlin. Since I first watched the Gremlins movie in 1984, I've always dreamed of having a gremlin of my own. The problem was that they are mythical creatures. It came down to three options: capture, conjure, or create. Capture (chances of success 0.0005%) - How many yetis, leprechauns, and fairies have been caught? Conjure (chances of success 10%) - A lifetime study of dark arts and unsavory sacrifices are required to make this happen. Create (chances of success 75%) - Design, 3D print, assemble, and program a gremlin from scratch. I chose the create option, even though computers and I don't always see eye-to-eye. Thanks to the EZ-B v4 from EZ-ROBOTS, I believe I can bring my creation to life. My hopes are that he will be joystick-controlled, and eventually an A.I. autonomous companion. The ezrobot camera has 640x480 resolution at 20fps with no latency. It is capable of color tracking, object recognition, facial recognition, and more. The EZ-BV4 boasts 200MHz of 32-bit processing (ARM Cortex-M3 & Microchip PIC32), 5-volt tolerant I/O, energy-efficient digital switching power supply, Wi-Fi connectivity with security, embedded web server, amplified digital audio with speaker, three I²C ports, three UARTs, 24 multi-use servo/digital/serial ports, 73 servos (Dynamixel & PWM), eight analog ports, and integrated video. Ultra sonic sensor lets him "see" obstacles up to six feet away. Additional parts required for this project are: * One EZ-B v4.2 developer kit (contents: one ezbv4, plug-in bracket, camera, ultrasonic sensor, four HDD servos, two continuous servos, servo extension cables, battery pack) * Four more HDD servos * Four micro HDD servos * One tower pro sg90 servo for the jaw * Camera extension cable * Ten more servo extension cables (for arms) * Twelve x drywall screws 1" (eight to assemble torso and four to attach stabilizers) * Six bearings (608, for inline feet support and stabilizers) * Several tubes of crazy glue (gel is highly recommended) * Unbelievable amount of patience Special thanks to: 3D modeller Hoinz for the original model @ https://www.thingiverse.com/thing:258879 And to fellow Pinshaper Richard Swika, whose comment on my Krampus project pointed me towards the EZ-ROBOT system and made all this possible. Special notes: * You must 3D print two of the wheel models and glue on a rubber band strip. Do not stretch the rubber band while gluing in place; you want the rubber to be "spongey" for best traction. * Use servo horns provided with servos (shoulders, elbows, upper biceps...). * Some parts have alternate choices (neck bracket, wheels); they use the servo horns in place of 3D printing the sprocketed parts). * Added stabilizers (forgot to include in assembly video; sorry. The bearings, too). * Hand file the bottom corners of the neck 3/8" to properly fit collar drill a 3/8" hole in back of both shoulder blades to pass the arm wires through the passage provided. * Make sure to fully trim and sand all components for best performance results. * If anyone needs assistance, simply ask. Videos: First sign of life @ https://www.youtube.com/watch?v=alnPy5QHD4Y&list=PLyihtXhIBu9PD7JindfB_JMCtx-NZL8iq&index=7 Servo test @ https://www.youtube.com/watch?v=CduttaEIQVY&list=PLyihtXhIBu9PD7JindfB_JMCtx-NZL8iq&index=8 Assembly video @ https://www.youtube.com/watch?v=EXWklJNU-Dc&list=PLyihtXhIBu9PD7JindfB_JMCtx-NZL8iq&index=9&t=1s