I dug an older PC and a few routers out and I will be setting up OpenVPN this week. Once the server is running, I'll start by making my laptop a client for testing. To be clear, I want the pocket router in my backpack to ultimately be the...
Just got it one functioning today - verified with a cup of ice water and my laser thermometer gun - a lot easier than I thought it would be. The RasPi is a funny device in that most of the pins have different names. For instance, RasPi Pin...
So time is up!Here is the presentation video: Currently working features: FM radio receiverFM frequency adjusting and editingsetting volumeRTC time displayRTC time setting24 7-segment characters and 20 14-segment displaysWhat didn't make it to the build...
It's been 9 months since last project update. I know it is long time, but I'm not abandoning this project just yet!It's true I didn't do much work since The Sci-Fi Contest, but I hope it will change soon.Current statusThe clock generally works, but not...
I didn't have much time to work on this tonight, but I managed to set up a little dedicated work bench to start work on the software. Some might appreciate that most of this stuff in the picture was either free, salvaged, or bought very cheaply from...
After hunting down a lot of parts, we're beginning to assemble this Rube Goldberg radio. It seems there were a few details left out of the old magazine article and our other references, but this project is all about improvisation, engineering,...
Aluminium PlatterThe cross sectional view below shows the original design for the platter. It consists of two layers of circular plywood. The lower piece has a hole in the middle where a nut is glued in place to connect it to the shaft. The upper piece...
Electronics With all 4 extruders, the platter, and the Z axis, the machine requires 10 independently controlled motor axes. No current 3D printer controller is capable of driving more than 5 stepper motors at once. While researching options to overcome...
A few little updates. #1 is that I've gotten rid of the Java requirement in the project - I was using a file provided by the FPGA board supplier (ZTEX) for loading the bitstream. This was written in Java and a great annoyance, as it required keeping...
Well, you have to start somewhere. In this case I had to decide on a power level, and the ammo.. and just started calculating from there.1/2" ball bearing ammo160JSome caps scavenged from dumpster: 560uF 450VInternet sourced efficiency expectation: 6%24...
Time for a brake so here are some screens of my board layout progression---------- more ----------February 11th: After placing components down with some trial and error to see how well things fit, I opted to route the most challenging piece at the time:...
Finished this puppy up. Contrary to what I was initially planning, I am not revising the board design to incorporate an off-board power supply subsystem.. If needed that'll happen down the road though. I have though come across numerous little bugs that...
Now that I've got some parts in hand, I figured it was time to increase the accuracy of the solid model. If you're interested in the actual part files, check the Dropbox repository (and let me know if you need a non-Cubify format); we're on to version...
As I wait for parts to build the propeller thrust testing jig, I want to dive into one of the primary design constraints that has driven many of the decisions illustrated in the various CAD models. Way back in early May, I showed a revised frame design...