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Jude Dornisch

Still at it

Posted by Jude Dornisch Jul 8, 2011
So thought I forgot about this. Anyway it is was really hectic here for a while as we had to expand or move. Well we doubled our space and nearly doubled our membership so that went well, but shifting and moving and running enough power to the new wood shop took a bit of time.   But I am back at it again.   So the coffee table board is first up.   Thinking about a table with lots of holes in it and the thought of jamming bits of metal into them poses some different problems. I ...
Jude Dornisch

Not Goodby

Posted by Jude Dornisch May 8, 2011
Although the Challenge is over the project goes on. I'll be updating this blog as time goes on at least until the next challenge.   The Big Board was a success. It was also a lot of fun. I did however get diverted into using just found material in order to make the project as widely buildable as possible. Now I'm going to concentrate on a higher quality process. Both with the board and with the components.   I currently have three new boards in the works.   First is a furniture ...
With several boards done or in process it is time to work on moving parts.   In general translating the 10x motion to 1x seems like a pointless endeavour. Rotary motion translates easily but up and down left and right not so much. There should also be a level of robustness that is not as necessary for static parts.   So I'll just build working switches instead of embedding any components.   A eight switch dip.   Starting with a dip I decided to try some vacuum forming, mo ...
Jude Dornisch

Making the Board

Posted by Jude Dornisch Apr 18, 2011
Probably the most tedious and mundane task in the entire project is the construction of the solder-less breadboard itself. This is only important in that it will be the job most likely to devolve to the instructor. You can get enthusiastic help constructing the 10x components. But that enthusiasm wanes quickly when talking about hundreds of tie points. So when constructing the board I am trying to keep in mind not only the wide availability of materials, but also the ease of construction.   ...
Jude Dornisch

It Works !!!

Posted by Jude Dornisch Apr 11, 2011
We had our Maker Faire over the weekend. We thought it a good time to present the project to a wider audience. A photo resister, a phone handset speaker some caps ,a 555 and we had a simple circuit to demos. It had to be simple because getting ready for the event cut into any time we had to work on the project.   I'm psyched and pumped.   We had the circuit setup on the board with a couple of  real size boards and components next to it. The  idea being we could get people to ...
Jude Dornisch

Saturday build

Posted by Jude Dornisch Apr 3, 2011
Yesterday was set up as a build day. A chance to get members outside of the core team a chance to participate and get their feedback.   I decided to work on an eight switch Dip. Translating motion from inch to a tenth of an inch for switches seems a bit pointless so no part embedding will be done. I'm just going to build a switch. For the first cut I hacked out the switch face in cardboard. Cutting some coat hangers for the pins and pushed them threw a foam body. For the sliders I de ...
Jude Dornisch

Moving On

Posted by Jude Dornisch Mar 31, 2011
The Proof board works well. It is a pegboard with some guide wood strips (for stiffening) and foam with aluminium rails.   The foam rails are just press fit for now this allows for quick interchange as the design varies. Soda can aluminium will work but will wear out pretty quick.   I've gone ahead a worked up a pinch roller for bending the rails. I can see that I'll need to do something to tweak the rails down the road. They work great for all the wire inserts but dip and ic pins ma ...
Jude Dornisch

Proof of Concept

Posted by Jude Dornisch Mar 29, 2011
The actual board is a pretty trivial exercise. There are of course many ways to construct it. But I want to keep in mind reproducibility and either robustness or ease of replacement.   To begin I am just using stuff laying around the shop. To begin I grabbed a section pegboard, some pink foam and some roof flashing. Looking at a variety of boards it quickly becomes clear that constructing everything in 5's is the way to go. So I took the foam (We had 2") and cut a bunch of 1" wide strips ...
Jude Dornisch


Posted by Jude Dornisch Mar 27, 2011
I've decided to use this blog as an extended hackers notebook. I'll take from here for the more or less formal documentation.   I'll be much more involved in the fabrication then any thing else. It is the guerilla learning that can take place in the building that interests me the most. Anyone with kids or teaches kids realizes the connection that hands and hearts and heads have. Engaging more then one of them in the learning process is a logarithmic advance. I don't know how many times kid ...