Machining Brass & More Electronics - OpenSCAD Workshop

It has been a while since my last post.  I have been rather busy this quarter with my senior capstone project (Stay tuned for that later...)  One of the things that I have been working on for another class is machining a power cylinder for a Sterling engine.  I changed the design to include machined letters.

I have also been playing around with a number of electronics things.  I bought an Open Bench Logic Sniffer which is very cool but comes without a case.   I found a design for one on Thingiverse but wanted to have cutouts for the optional headers so I modified it (here).

 

I also bought a Freeduino which is a very nice little thru-hole Arduino clone kit.  It was very easy to assemble.

I wanted a case for it as well so I designed and printed one.

This case will also be one of my examples at the OpenSCAD workshop I am teaching at Metrix Create: Space on Sunday, March 27 from 2-4pm.

Getting Back in the Groove

Missed my weekly Sunday post this week.  I had a party on Sunday night for my sister Joiwyn who turned 16.

HAPPY BIRTHDAY JOIWYN!!!

I am enjoying my rapid prototyping class.  I just finished a lab report about a part I made to test printing threaded holes.  Next we get to test a 3D scanner...  Later we will be making our own 3D modeling software using SAGE and ISM, Implicit Solid Modeling.  SAGE is a free, open source, computer algebra program.  ISM is where you define a shape with a formula, f(x,y)=x^2 + y^2 - 1 for a disc.  This then is used to determine what is inside, on, and outside the object.

I have also been playing with OpenSCAD which is a open source cad engine that lets you model with a script that defines the object and then will render it. Very cool...