[Nuke]

i had a 2x2" peice of uncut pcb lying on my desk upstairs earlyer when i was cleaning my room and all my junk boxes separating **** from good ****, and crap from junk. i kept all the junk and good ****, discarding the crap and ****. needless to say my room is theoretically cleaner now, though it doesnt seem to have changed much by its outward appearance.

anyway i decided that since i had this piece of pcb, which was trimmings from my last pcb project i decided id make me a nice little power supply for my pi. lacking the parts to do a switch mode supply, i opted for a most basic lm7805 circuit, big ass traces, and places for one regulator, four capacitors, one schottky diode (for reverse polarity protection), one led, one current limiting resistor for said led, a 3-pin input header (same pinout as my diy battery packs), a 2-pin output header, and a barrel jack for 12v input. the board is small enough to fit inside the lego case i made for my pi, so i dont have to have an externally mounted supply (except for the usb hub im using).

i designed it as a one sided board where the other side is essentially a heat sink for the regulator with big holes where the parts go so alignment wasnt critical. i actually have heatsing over about 40% of the other side where there is only a handful of traces. dispite the fact that the heat sink on the regulator is grounded internally i isolated the ground plane from the heat sink area which in hind sight was probibly a bad idea. i could have had much cleaner edcge traces by side stepping pads right into the ground plane and out of the way. i also scratched a cat head into the corner with an exacto knife, i now have a copper clad drawing of a kitty on my ground plane which is about a quarter inch whisker to whisker.

the iron on step was an epic fail. i tried it again (it always pays to print multiple copies of the same design on the sheet of transfer paper) and it was no better. so i gabe up and started filling in the holes with a sharpie. and fixing mistakes (and drawing a kitty) with an exacto knife. so it took 2 and a half batches of my etchat to cut this thing (my last board used 4). i had to make an extra half batch because the etchant stopped reacting when i was close to done. also i found that sharpie ink doesnt last long in the etchang, i had to re-touch up between some batches to prevent dissolving a couple traces. but the results werent half bad. i didnt spend as much time on the cleaning i suspect. also tape offset. seriously scotch tape is thick enough to prevent large swaths of circuit board from getting ironed. i think in the future i will only tape one edge, and leave some space between it and any traces. and then iron to the side of it so it doesnt keep the iron from applying pressure evenly to the whole board.

also it seemed my etchant put out a lot of fumes this time. idk what they were but it smelled like a swimming pool. but when faced with the choice between doing what i whant to do, and chemical poisioning, i will always choose the former. i may stop handling the stuff with my bare hands though. tomorrow i get to break in my new dremel drill press since i finally got the pcb bits i ordered for it. its 4am, and i dont want to piss of the neibors,theyve been *****y lately.

tldr: you suck and should be on fire for not reading my awesome wall of text post!

[deathfun]

I just take the bus
**** all this driving ****

I'll walk and bus wherever I need to go

Yeah, try doing that when there aren't any buses around.

Then I walk!
...22km...

[Androgeos Exeunt]

I visited Wikipedia today and found out two things:

1. There was a meetup 3 days ago in Singapore; and
2. I'm marked as a Missing Wikipedian.

My job's done.

[sigtau]

First day ever of Uni classes tomorrow.

Help.

[Klaustrophobia]

my first year and a half was far easier than high school. 


**** got REAL junior year though.

[Nuke]

i finished building that power supply for my raspberry pi. as a bonus it fits in my lego pi case. puctures later when i feel like it.

[Dark Hunter]

I start Teaching Assistant duties tomorrow.

Mainly in charge of grading, but also helping any students who get over their crippling shyness enough to visit my office (I have an office now! Kickass! ) with their work.

This should be interesting. And hey, having money is good too. 

[z64555]

my first year and a half was far easier than high school. 


**** got REAL junior year though.

Kinda late to introduce imaginary and complex numbers. 

[Klaustrophobia]

my first year and a half was far easier than high school. 


**** got REAL junior year though.

Kinda late to introduce imaginary and complex numbers. 

ic wot u did thur.


you laugh, but come to think of it, i DID start using imaginary numbers in junior year.  in actual, no-**** real-life solutions to neutronics equations. 

[Nuke]

i imagine lots of things that arent really there. numbers are no different. i wonder if thats why im good at learning complex math by accident.

[z64555]

my first year and a half was far easier than high school. 


**** got REAL junior year though.

Kinda late to introduce imaginary and complex numbers. 

ic wot u did thur.


you laugh, but come to think of it, i DID start using imaginary numbers in junior year.  in actual, no-**** real-life solutions to neutronics equations.

Nuke engineering, huh? awesome.

What did the imaginary numbers represent? Or was it just used in lieu of a bunch of sine and cosines?

[Dilmah G]

my first year and a half was far easier than high school. 


**** got REAL junior year though.

What he said. My first sem was an absolute breeze.

[Klaustrophobia]

my first year and a half was far easier than high school. 


**** got REAL junior year though.

Kinda late to introduce imaginary and complex numbers. 

ic wot u did thur.


you laugh, but come to think of it, i DID start using imaginary numbers in junior year.  in actual, no-**** real-life solutions to neutronics equations.

Nuke engineering, huh? awesome.

What did the imaginary numbers represent? Or was it just used in lieu of a bunch of sine and cosines?

honestly, i don't remember.  i am exaggerating a bit.  yes, they actually WERE there, but they weren't super-important or prevalent or anything.  it was some step along the magic path to the solution (seriously, one of my professors wrote "magic" on the board as a step in a derivation), or it was part of a solution matrix but not the one that actually applied or something like that.  in any case, it's something the computer codes do that we learned just so we aren't putting faith in a black box program.

[z64555]

Huh... ok. Talk about "Ok, here's an equation, but don't try to derive it! Just use a computer program or this fat book of tables we give you."

EEEN and signals analysis has one of those, for the Gaussian Bell curve integration I think. Probably not as complex as whatever you where dealing with though.

[Colonol Dekker]

I'm trying a new approach !which I believe I've finessed over the last four months.. Forming a relationship without investing ANY emotional attachment. That level 99 jo-jo that I finally cracked. .... Well, we've reached a parity, to the point where she's bunking off work in tower hill to give me lunchtime treats. I can't understand why it took me this long to understand how to get over one of the final hurdles in my female chronicle of understanding--( long term super hot female retention) ... The key, is to ensure that they know that they need you MORE than you need them. This is all down to basic marketing, in two ways you can approach this. Try to create a need for something you offer, or adapt yourself to meet an existing need. I might actually write my thoughts one day lol.

[deathfun]

The Dekker Chronicles
Meet the mind behind the man
And the man behind the woman

[Nuke]

I'm trying a new approach !which I believe I've finessed over the last four months.. Forming a relationship without investing ANY emotional attachment. That level 99 jo-jo that I finally cracked. .... Well, we've reached a parity, to the point where she's bunking off work in tower hill to give me lunchtime treats. I can't understand why it took me this long to understand how to get over one of the final hurdles in my female chronicle of understanding--( long term super hot female retention) ... The key, is to ensure that they know that they need you MORE than you need them. This is all down to basic marketing, in two ways you can approach this. Try to create a need for something you offer, or adapt yourself to meet an existing need. I might actually write my thoughts one day lol.

my trick has always been to date women with severe emotional problems. they are more likely to get cock addiction than your normal gals. of course you got to keep giving them cock, otherwise they will find other cocks. but i figure what dekker says here is mostly true. as much as women rant and rave about wanting men who are emotionally open and **** like that, what they really want is to be dominated. they are highly controlled by their emotions, and yours will only get in your way. also it helps if you own a van.

[CommanderDJ]

So I thought for the first time in 8 weeks I'd actually have a light-ish workload, as one of my subjects which normally releases assignments on Friday didn't upload one. Then today (Tuesday), the lecturer emails everyone basically saying "hai guys I forgot to upload the assignment last week, here it is. By the way, it's still due this Friday. Have fun!"

FUUUUUUUUUUUUUUUU

[z64555]

So I thought for the first time in 8 weeks I'd actually have a light-ish workload, as one of my subjects which normally releases assignments on Friday didn't upload one. Then today (Tuesday), the lecturer emails everyone basically saying "hai guys I forgot to upload the assignment last week, here it is. By the way, it's still due this Friday. Have fun!"

FUUUUUUUUUUUUUUUU

I've heard businesses like to pull that stunt, too... so consider it as practice!

[FlamingCobra]

I took my first Calc2 exam/test yesterday. I almost didn't finish, but I think I did pretty good.