CaDoodle is an easy drag-and-drop CAD app for Windows, Mac, Linux, and ChromeOS. It runs entirely offline, keeping all your designs stored safely on your own computer. CaDoodle CAD features an intuitive interface that makes creating complex designs accessible to everyone, from beginners to professionals. Extend the CaDoodle workflow with file type support for Blender, FreeCAD, Inkscape, OpenSCAD, BolwerStudio and STL. CaDoodle offers a familiar drag-and-drop workflow for Tinkercad users, but works completely offline with no internet required. Perfect for schools and education.
Github: https://github.com/CommonWealthRobotics/CaDoodle-Application
Electrical and Electronics Drafting provides you with basic instructions in electronics drawing. It begins with a review of drafting fundamentals including drafting tools, inking methods, and taping methods. Electronics drafting topics include the meanings of electronics terms, electrical component descriptions, electronic component symbols, reference designations, and PC board conductor spacing. You will learn the proper use for symbols in block diagrams, flow diagrams, single line diagrams, schematic diagrams, and logic diagrams.
Electrical and Electronics Drafting teaches you to think, create, and draw in a logical sequence. You are asked to begin with a sketch. From this, you will generate all of the formal schematic drawings, parts lists, wiring designation lists, printed circuit board layouts, PC board artworks for photoresist exposure, PC board marking artworks, and packaging drawings.
Electrical and Electronics Drafting is written in concise, easy-to-read language and illustrated with hundreds of photos and drawings to help you learn. The guide typically provides you with two visual examples for each major topic covered. You will have the opportunity to complete many problems to aid in your learning experience. The questions provided at the end of each Section emphasize the important information covered in the text.
The RepRapMicron Project, or μRepRap, is an extension of the Open Source RepRap 3D printer project that aims to bring micron-scale fabrication into very widespread adoption. The main project page is here. It uses hardware and software familiar to 3D printer developers, and materials that are easily and inexpensively available.
The meaty part is in the "maus" directory, where the OpenSCAD models for a rapidly reconfigurable 3D printed prototype can be found.
At present, the project is in the very early prototyping stages, figuring out the unknown unknowns. This repository holds files that can reasonably be expected to be useful to potential developers/experimenters, but at this stage there are absolutely no guarantees.
The proof-of-concept prints have already manufactured things between 8 and 30 microns in size.
The simplest tasks are often the biggest challenge. Many can program a microcontroller; not as many know how to make a simple actuated joint, a custom gearwheel, or a custom chassis for their creations. With 3D printers, we've been promised a revolution in desktop manufacturing, but many of the issues are more fundamental - having to do with mastering CAD software or understanding materials science to make lightweight and durable parts. Meanwhile, on the manufacturing side, a simple, affordable, and home-workshop-friendly solution - CNC machining coupled with resin casting - is already within reach.
This guide is more or less modular. If you're interested in buying a CNC mill, keep reading. If you already have one and know how it works, or want to try the overall process with a 3D printer or other manufacturing process, you can skip directly to the relevant part.
This repository contains STL files for the MicroLab 3D printed reactors.
sf-hab.org's RP2040 based PicoBalloon Tracker PCB generation 1 for STEM education, designed by AG6NS.
Eagle library for USB connectors printed directly on PCB.
A full featured CAD application written in Javascript. Runs in your browser. Opens OpenSCAD and OpenJSCAD files natively.
A suite of open source electronic design tools. Uses a GUI for schematic capture. Also capable of analog and digital simulation, generation of parts lists and export of PCB designs for fabrication.
The DIYLILCNC is a fully functional, open source 3-axis CNC that you can build with basic tools and parts that can be locally sourced. The idea is that you develop a 3D design in a CAD application, put feedstock into the CNC, and print your design to it, and it cuts and grinds away everything but what your design is supposed to be. Total cost of construction is about $700us. You can download the plans and DXF template files from the website for free (they have a CC-BY-SA license).
CADquery aims to be to 3D modeling what jQuery is to Javascript, i.e., making the construction of parametric models simpler. Provides an open, plain text model format that can be loaded and viewed with a web brower as well as sliced and run through a 3D printer. You can either model or program shapes in text, or possibly both.
Requires FreeCAD.
The Shapeoko is an open source CNC that you can either buy as a kit or build yourself for about $300us. Work up your design on a laptop using open source CAD software, clamp feedstock on the bed, and it'll produce what you designed. Because it's open source it's not limited to wood - it could be adapted to just about any material that you can cut or grind could be. Chances are, someone's already done it and posted the docs.
Everything is also kept in a respository on Github: https://github.com/shapeoko/shapeoko