What did I learn

A bit short of a year has passed since I first set up shop at RIT.

I expected to learn physics, math and science. I did, a little bit, but mostly, I learned how to play nice in an organization. Not from my classes –most are as boring as ever. Rather, I learned what I did the way I always have; through the projects I take on for the challenge.

This year’s king is probably this guy right here; a >10kVA dual-resonant solid-state tesla coil. Or as I like to call it, capacitive hell in epoxy packaging.

I should probably explain.

For the past six years, a festival has been held at RIT to demonstrate to the public, all of the ‘Innovation‘ happening on campus. Students are welcome to demonstrate exhibits and projects, where in return they get a fancy t-shirt and a barbecue sandwich. Overall, it’s a nice little event.

And so I thought; “If the goal is to impress the public, what better way could that be done then, with a giant musical tesla coil?” And so, I gathered a team of 3 and 1/2 people to work on such a demonstration, and lo, there began the fun.

Fast forward some weeks, some pain and even some blood. Some burns, some exothermic epoxy, some wasted epoxy and wire. Some fried silicon –much fried silicon, and piles and piles of money which shouldn’t have been spent.

Fast forward through all of that, and we have a tesla coil. Almost.

As it turned out, this project was too big to be completed in one month; despite our efforts, we didn’t finish the tesla coil by imagine. Not only that, we lost parts, ordered the wrong parts, expected too much from incorrect tools and worst of all, became physically ill from working too late, too hard, too often. [or, at least I did]. To top it off, I fell behind in calculus and mastering physics homework, and earned in those classes a B and C, respectively.

Well damn.

So what did I learn from this?

I learned that time management is important. There’s a reason why engineering firms don’t run 24 hour shifts, and a reason why I hear nothing but bad things about Space-X’s schedules at RIT. Without scheduling time for other things, priorities shift, relationships are strained and fun somehow goes away.

Sleep is important. Without it, you become ill, both physically and mentally. High sugar foods and caffeine are no substitute for a nice biphasic sleep cycle, and your body lets you know it in a hurry.

Organization is important, and as a customer, you can never rely on suppliers to deliver what they promise. Always have a plan C.

As a team leader, you need to make clear to other people what exactly they should be doing at any given time. As smart or as competent as someone may be, without direction, things are unlikely to get done and people lose interest.

Communication in an organization however, is probably the most important thing to take home from this. As connected as a world we live in today, it still became an awkward mess to make clear what we were doing to the director of Imagine RIT. What was once a ‘no’ turned into a ‘maybe’, then back to a ‘no’ and then a ‘yes’, before returning to a ‘no’ one day before imagine. Lovely.

Specifically, the lesson learned was an extension of the clarity thing aforementioned. In an organization, people tend to have a hard time understanding what the hell is going on beneath them. When they ask questions, a very technical response is likely to worry and concern them, where they then may call in the opinion of other seemingly qualified, yet situationally ignorant people to confuse everyone further. In essence, it’s important to be prompt and concise with every question asked.

Too bad the price I paid for these lessons, was my place on the dean’s list.

 

So what’s the plan from here?

Well, as a place of new things and innovation, RIT still sucks. Big time. Complaining about it never gets anything accomplished however, so I intend to fix the problem.

How?

By setting up a free to use hackerspace on campus, with machine tools, 3D printers, components and materials, and calling it RITERS. A proposal, requesting $75,000 and space for the lab is currently in the works, and it should be finished Wednesday when all three team leaders are back at RIT.

Whether or not anyone but us will use it is yet to be determined, but I’m donating part of my summer to this cause and want to see it happen by the start of fall semester. Sure it’s a large request, but if the university really cares about its students, it’ll listen to them.

On another note, my motors from china have finally shipped and seem to be exactly what I expected. Wednesday, I plan to return to RIT with these parts, where I will then finish designing the Segway kit prototype and ideally, have it up on kickstarter before the fall.

I’m switching my major to EE. I’m not particularly happy with RIT’s physics program, so perhaps it’s best to study what I know I’m good at.

Relevant, I’ve decided to build a cyclotron. Why? Because, although I don’t plan to learn very many new things from RIT’s EE course, building an RF excited particle accelerator is sure to make up the difference. The only thing holding this back right now, is the procuration of a pair of giant magnets.

This summer and fall semester, I’ll continue my education in learning how to be a leader. As the past has proven I’m bound to fuck up quite a bit along the way, but hey, mistakes are nature’s best way of telling you, don’t do it that way again.

Oh and yeah, MIT said no.

 

Composite nightmares

Recently, someone knocked over my tesla coil secondary and cracked off a good chunk of epoxy insulation, before it even got a chance to see its first EM field. Boo. The damage ended up being pretty bad, so I was left with little choice but to build a new one. As my luck would have it though, there is no 12″ PVC pipe to be found in Rochester. So… how about sonotube?

Cardboard works alright as an inductor’s core, but water entrapped in it dissipates RF rather readily. Naturally, this is bad if I’m putting 10kW into the coil, so it must be removed. Since my composites class project wasn’t going to happen since I wasn’t able to use the student available cnc router ”formula SAE only” compumill, I figured why not try epoxy infusing the coil?

Fast forward a bit. Once all the materials were gathered, things were going good for a period of time. The vacuum bag was looking pretty nice, and the tube seemed to absorb the epoxy that was being brushed on it. In fact, it might have just worked if we were able to seal the vacuum bag in time… ಥ_ಥ

 

Alas, composite tube was not meant to be. At least, via the way we tried it.

Lessons learned, I suppose.

Next time I’ll be trying s-glass instead of cardboard.

The current state of the Union

I know I don’t document things as well as I should, mostly because projects take longer than I expect and I’m tired when they’re finished. Nonetheless, it’s probably best to keep at least somewhat of a log when I can, and when I can is now.

The x-ray project:

Is still mostly at a standstill. Although I have a bit more searching to do, it looks like there’s little, if any hampering prior art on the digital x-ray imager I designed, which is awesome. Still, RIT doesn’t have the resources to let me build something like that, and those that do exist are kind of off limits. I was denied from the summer startup program because I wished to include team members from other universities, which in my opinion, is quite short-sighted of the folks running it. Hopefully the people in Cambridge will allow me to join my friends next year, so we can get this ball rolling.

The Segway kit project:

Is moving along at a reasonable speed. I finished my BLDC controller last night, and as far as I can tell everything is wired right. This week, I hope to etch a board and see for myself, whether or not I screwed this guy up.

If I do spin up a motor, then all that’s left to do with this board is to pick some suitable resistors to align the drive current with the motor’s back-emf (thereby bringing the efficiency out of crapville).

The electromechanical computer:

Is dead for now, until I can find time to solder the dang thing up. 3 hours for one byte of ram!

The dual resonant tesla coil for imagine RIT:

Mr Krabs

Is being built. Copper pipe was secured this week for the primary coil, and Dan from eastern volt research is helping to fund the LC tank. We still need to buff the secondary smooth; a task that was supposed to be done friday if home depot actually stocked buffing compound!

As for its fate as an imagine RIT demo, I still need to convince health & safety that faraday cages keep sparks and EMF inside, but it’s hard to make an argument with people who don’t understand electromagnetism. Perhaps I should build a tesla coil hat like my friend tyler, to make clear the safety aspects of a proper ground.

Makur.org:

Still dead. Sadly, RIT doesn’t have the type of community interested in using a site like that, as League of Legends > Building things. I still would love to get this running one day, but it’s not going to happen without help.

The Youtube video series:

I have a neat idea for another video, but I first need to procure many sharpie markers, of all shades and colors. Stay tuned!

My TI analog design entry:

I now have 4 degrees of freedom, but more noise than I’d like in my output signals.  Zener diodes suck apparently, so I need to order some real voltage references if I’m going to implement a kalman filter with op amps…

Overall,

The state of the union is “somewhat OK, but disappointed”.

Crystallographic Calamities

So while walking back from my calculus lecture today, I noticed something out of place in the engineering college…

Symmetrically cut pieces of paper. Interesting. But according to others, they were snowflakes.

I THINK NOT. Since when does ice 1h have two-axis symmetry?!

Seeing as no one else cared enough to fix this, I suppose it was up to me to do so.

 

And so, after 45 minutes, we have what may be called the product of all the hyped money RIT is pouring into their student innovation labs;  eighteen snowflakes, each with 6 fold symmetry.

 

 

There we go, catastrophe avoided.

 

Designing a support network for a Rate Gyroscope

Well, from the hours of 11 pm to 4am Saturday night I decided to make an educational video. Don’t ask me why.

I wanted to do some signal processing for my first video, mostly because it makes for a good video, and is something most people don’t know all that much about. So, I chose to explain how I made a support network for my golden gnat gyroscope.

Because I’m a bit awkward at lecturing it turned out kind of meh, but whatever, it works. If there’s a nice response I may just make some more, since this was kind of fun :-) .

Enjoy!

Found a major security issue…

Public safety got a bit upset with me today for copying of my university ID card. Seeing as I was locked out of my dorm and all labs, food and whatnot for four days while the folks at the registrar’s office broke everything after I had lost a card, I figured it’d be best to keep an extra key around, to avoid dealing with that mess again. As it turns out, that’s not allowed, though no one told me.

Still, I found a huge problem with RIT’s Lenel security system; none of this data is encrypted. At all.

Literally, I could take a picture of anyone’s ID card, find their UID and issue number, make another card and go into any of their labs. Once a new card is issued, I could just increment the 11th digit and do it again. By exploiting a few more holes I’ve been asked to withheld, I could get all of their personal information; SSN and Financial info included.

That’s bad. That’s *very* bad.

Let’s see if I can get Lenel to fix this.
Update (after break):

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Who I am

Today, I was pondering about who I want to be in the future, and who I am now as a person. I decided upon the term ‘innovator’.

I build things. I always have; throughout elementary school, throughout middle school, throughout high school and throughout this year. By building things, asking questions, and inventing solutions to all the problems I’ve made for myself, I’ve learned a bit more about the world than the average person. Often that lands me into precarious situations, but when it doesn’t, it’s a blessing.

It’s hard for me to describe who I am. Maybe the best way to do that is to describe what I do, for fun, and for other causes.

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