Monday, January 30, 2017

Prograde burn; I quit my day job to work at NASA

Yes you read that right, as of January 30th I am working at NASA Goddard as a student researcher in the earth sciences wing, specifically on the 4U Laser Hetrodyne Radiometer cubesat as a hardware/software engineering intern.

First official day on the job!

Thursday, December 29, 2016

Holiday season 2016 general update and MAGFest panel announcement

Happy Hackerdays readers! Since the last update I've been absolutely slammed between life and projects which had a drastic balance change that took more time and energy away from the blog than I'd have liked but thanks to a few alterations it is looking like I'll be back on track to get updates out more frequently and have an increase in project progress.
Hackertree 2016, with even better gear and Wi-Fi LEDs!

Wednesday, August 17, 2016

Q3 2016 Rocket active stabilization system update, complete hardware redesign of fin drive system with bonus sketches and a needed disclaimer

The old and new designs, massive improvements to the overall design
Update time has rolled around again now that a good chunk of progress is completed on the Arduino based rocket stabilization system. This has taken a while since I've been busy with not only work but also getting the A+ certification in computer repair and completely reworking my current workstation. After much discussion with several other rocket tinkerers, the conclusion was reached that stresses on the servo spline itself would be quite considerable and may result in damage or inoperability. Based on force distribution I surmised that flanged bearings embedded in the system shroud tube would function as not only supports but also as smooth rotation points. With the challenge of a new fin drive train in mind, I set to brainstorming. My first thought was to use linkages connecting the servo to the actuation shaft, though it would increase the diameter of the system unless the servos were staggered which would also increase the overall height of the system. Stepper motors were considered, however as I was unable to find suitably sized units and the common 28byj-48 had too low precision and torque this too was eliminated from consideration. After those two ideas were discarded, it was relegated to the back burner while I had work. The breakthrough was about a week later, while browsing patents looking at missile fin drives I noticed an old Raytheon control segment used bevel gears to transfer the motion and that became the seed for the new design. 

Tuesday, June 14, 2016

Side projects update: Optical/radio telescopes, CAD, new rigs and custom sensor breakouts

Apologies for the radio silence on this blog, work has been continually crazy and some projects have been sidelined for temporary holds due to funding reallocation, however the backlog of completed short term projects has been full for a while and I thought I'd get some posted to tide you over until the next flagship update (Coming soon! Major redesign underway). Details on projects after the break, with a teaser for the flagship redesign at the end. 
8 inch Dobsonian telescope with craptastic eyepiece

Friday, March 11, 2016

How to theme and change the font of the Arduino IDE (Tutorial)

You've probably had this problem before; Writing code late at night trying to get new features to work but the bright white of the default IDE is burning your eyes and giving you a headache even with F.Lux installed, and/or you've mistaken a "l" for a "1". Well, there are solutions to those problems, but not the other well known problems (autocomplete, not enough debugging features, etc etc) after the break.
Original on left, rethemed and refonted on right

Sunday, February 14, 2016

Q1 2016 Rocket active stabilization system update, now with fins, nose cone and a mockup

With 2016 well underway it's time for the first update on the state of the stabilization system!
First off, apologies for the massive delays this post has had, was originally slated for mid-Jan launch but between job hunting and other stuff I've been hitting delays and trouble at every turn. Since last semester ended on Dec 18th, I'd been going to TechShop pretty much every day until Jan 18th making massive leaps and bounds of progress along the way. The most obvious of progress is the completion of the demonstration mockup airframe which will be gone into more in-depth after the break. 
The system's current state on the demonstration mockup

Thursday, January 14, 2016

Holiday update and gift exchange postmortem

Happy Hackerdays readers! Since the last update it's been busy with the first semester of school finishing up, finals and the holiday season quickly approaching. In that time I've made a better HackerTree, run a beta test of the Maker gift exchange, made the major purchase of an oscilloscope,  and received a box of goodies from Texas Instruments. First semester was a mess and I made a lot of mistakes along the way that will be a lot of work to get my grades up out of over the rest of my time at school. I've reactivated my TechShop membership and will be up there doing a lot of work until January 17th when it expires again. Full details on the updates and a little teaser of the stabilization system progress after the break.
Wishng you all a maker Christmas and a hacker new year!