After much deliberation, I think I'll be settling on the following placement of the OLED display on the PCB:---------- more ----------The transistor pair on the left and right is vertically centered. Running the numbers places the graphical gauge face...
Here are 2 JTAG adapters for D-DAQ.For those with an ARM 20-pin cableFor those with a MIPS 14-pin cableSince I'm putting neither a 20-pin or 14-pin receptacle on the mainboard, an adapter is required. As long as your JTAG tool speaks PIC32/MIPS 4K, these...
Here is where I'm currently at with version 4 of the prototype:---------- more ----------Thick border is the flat top area on the case. The 4 keepout areas are portioned for grommets for helping shock absorption to the PCB directly. To avoid a large...
New video is a little blurry/short, I won a rebel T3I and well im used to camera phones so, maybe the next one will be better.I finaly got the Optical gates working, and oscilloscope would have helped greatly :( I finally was...
This will be a short update. EDIT: maybe not.Recently while awaiting funds to buy another SCR and some 10 or 8 gauge magnet wire, I have been experimenting with Ballistic Stabilization.If you read a few logs ago you may have seen that I purchased...
I ended up using 2 boards, because I ended up making changes to the optical gate circuits after I had sent off for the main board. Good news is that it was easy to just make a slave board for that portion of the circuit.I made a few mistakes when...
Today I overcame my frustration with the connectors that were too small and had all the parts present to solder the first dome. I had to file the rgb LED legs down so that they would be thin enough to fit the holes. The IR led had very thick spacers...
So... here we go, the project has been published. A bullet-list-brain-dump of what has been running through my head (minimally edited, but that's probably best at this point):Basic design. I want the unit to be radially symmetrical; to cancel the torque...
I started thinking back to my brief but thoroughly enjoyable experience with Kerbal Space Program and remembered a tip from the wiki: the thrust vector should be in line with the center of mass. In my mind, that means a gimbaled fan needs to be designed...
Napkin calculations: often done at a bar, on a napkin, with a marker (or a toothpick dipped in Angostura bitters). In this case, it's time to do some very rough calculations to figure out if GimbalBot is destined to fly. To do that, I've started finding...
Inevitable, isn't it? We come up with fun project ideas, order a bunch of stuff, and spend the next week anxiously watching a collection of UPS tracking numbers, agonizing over whether or not we bought the right components. Here's what I've got coming...
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...
Okay, so the title is a bit of an understatement. If you've been keeping up with the logs and project comments, you'll know that a few of the ideas that have been discussed conflict with the previous waterjet-cut CFRP design. I decided to explore other...
As you may know if you have read previous project logs, I am currently working with a local rep to obtain a 60vdc-->12vdc 600w DC:DC converter. The guy was on vacation for a week but he got back to me yesterday and today to let me know that a few units...