You can 3D print objects, primarily
in plastic. However, you can also create 3D models which you can then use to
make castings in other materials- jewelry in precious metals, figurines,
miniatures, railroad and other collectibles, and even chocolate.
Henry Locke, Maker extraordinaire
and creator of Flex Vat 3D printer components, built one of his 3D printers for
us. SLA printing uses a vat of light sensitive resin cured by a video projector
to create amazingly detailed forms- think Terminator with the alien rising out
of the vat of goop!
The main focus of the presentation
will be how to make silicone molds from 3d printed masters and using those
molds to make castings:
Learn how the SLA printer works
Tips for designing and printing your 3D object to be
We’ll have one or more 3D prints to demo
We’ll make a silicone mold and make one or more
polyurethane castings but also discuss how to work with other materials.
This past Saturday, workshop attendees had fun learning circuit design and micro-controller programming using Arduinos. Students programmed flashing LEDs in various sequences, sounds using a piezo speaker, and more.
Flashbacks to the ’80s and 90’s occurred as the theme songs of PacMan and Star Wars came from the Arduino boards.
Our instructor, Robin Moseley, a former Bell Labs scientist who designed microcontrollers and other hardware and software, explained what a microcontroller is, circuit design, and the many uses of Arduinos and similar boards. He brought in many of the projects he has built with Arduinos, including drones, robots light displays, sound synthesizers, music samplers and connected devices (Nest, Alexa, etc.) sorts of things that can be easy DIY projects.
Students left with a full development kit including the Arduino, breadboard for wiring circuits prior to soldering permanent connections, sensors and resources to find and make more projects.