Thursday, March 13, 2014

Dayton Diode Survey

Dayton Diode is currently in the process of planning for the future of our space and organization. But we thought it would be good to get some info from the community to steer us in a way that will benefit everyone. So, we created the following survey. Please, if you have a chance click the following link and fill it out. Also, please share this post so we can cast as large of a net as possible. Thanks!

https://docs.google.com/forms/d/1behFSnvDrtZaAWpQwcthU3WUdytbPBjxo9aMfGbVdLA/viewform

Saturday, December 7, 2013

Prusa Mendel RepRap Frame Vertex Topology Optimization Using ToPy


This post is about a free/open-source work-flow for topology optimization. At the last monthly meeting I showed a bunch of folks a neat real-time topology optimization app that is great for sketching out concepts quickly. That app has a good user interface for defining loads, boundary conditions, and solid/void regions. The thing that makes it good for getting a concept quickly fleshed out is that the optimization happens in real-time as you change the loads and constraints. One drawback with that app is that it is not really free software (no source available), so the opportunity for tinkering and learning is limited. ToPy, on the other hand, is free software, and it is well documented with a thesis and available source code. However, the user interface is a text file so it is a bit more work to set up a problem, and for this small 2-D problem it takes 90 iterations at about 15 seconds per iteration to converge to a final part (it may be possible to improve this by changing the solution method it uses for 2D problems).

Wednesday, November 20, 2013

Dayton Diode @ PechaKucha Vol. 17 This Thursday

I'll be one of eight presenters at the next PechaKuchaDayton night this Thursday. Is There A Makerspace In Your Future? is the topic. If you can make it, come on out! Free admission (donations accepted) and food & beverages available.

Monday, November 11, 2013

Retail 3D Printing Comes to Dayton

Dayton now has a retail 3D printing location. Rapid Directions opened their second retail 3D printing location here on North Dixie drive. Needless to say I was pretty excited to stop by and check it out (and pick up a spool of ABS since we're running low in the space).