Monthly Archives: February 2012

Teardown: DeWalt 14.4V Battery

This is what was going to go up yesterday… but was delayed by my venting.

Today I’m taking apart a battery that refuses to hold a charge. I’m trying not to have this be a destructive teardown since I want to be able to rebuild this battery pack (along with its brother that’s only a bit less janky).

All it takes is a Torx-10 driver and a knife to cut the heat-shrink.

Interestingly, the pack is nothing more than a bunch of sub-batteries all wired together. 12 1.2V NiCd batteries all wired in series!

This brings up an interesting topic: battery sizes. I’ll give you a hint, there’s a lot more than the AAA, AA, C, D and 9V batteries out there in the world! Grin

This is a 22.6mmx40.9mm battery. The 22.6mm width is essentially a 23mm sub-C battery of some sort. The 41mm width is a bit more puzzling. It’s a bit shorter than a normal sub-C battery, but … well … that’s the closest size.

I think what I’ll do is get two-dozen batteries and wire up a pack and report back. The cost new for a new battery pack is around $50. I’m figuring around $15 worth of batteries will get me something better than new!

Guns; Gun Control; God; Parenting; Kids

(Teardown tomorrow; current events prevail)

I was reading the comments on a NY Times article about the recent shooting in Chardon. This happened way too close to home; Chardon is around half an hour from where I live and I’ve been there many times.

I was talking about this with En the day it happened about how the first thing that will be blamed is the gun involved.

Sure enough, that’s the first thing that everyone is blaming.

If you’ve read the blog you know I have guns. That, I’m sure, will bias your opinion of me and my ideas. I’m going to kindly ask you set those opinions about me aside for a moment and let’s have a rational, non-ad hominem, debate and discussion.

I’ll lead off with the obvious — what happened in Chardon is tragic. No one can argue that. The focus must be on what we can do to prevent that in the future.

The reality we live in — here in the US — is one where guns exist. That genie can’t be put back in the bottle no matter what you want. It’s been proven time and again that additional gun laws don’t affect crime statistics; definitionally, criminals don’t follow the laws. Laws only affect the law-abiding. Repeatedly, however, every time a crime occurs with a gun people call for additional regulation. It doesn’t affect crime because guns can be had illegally. Do you think the murderer could buy the gun he used legally? No.

The problem is that society is looking for the proverbial silver bullet. In the past it was that loud music, then it was Dungeons and Dragons, then movies, then video games. We look for excuses to not blame ourselves for our own collective lack of parenting. If the blame can be moved away from us then we can smuggly look away from us confident that we did no wrong. This is us as a society looking to avoid the consequences of our own actions.

That philosophy is defective.

In this case we need to look at the parents (or wherever this kid acquired the gun). Why did this child have access to a gun? Why weren’t the parents involved in his life? What are the consequences when you handle, or mishandle, a firearm? If the firearm was obtained illegally (i.e. black-market sale as opposed to picked up off the dresser) then how would the parents or guardians not known and where did the money come from?

I remember growing up with my dad showing me his .22 pistol for the first time. I remember plinking away at my uncle’s pond. I remember shooting a quarter that I propped on a stump and — holy crap — that coin was messed up. Cause; effect. Now, what I would do is prop up a melon or something and shoot it with a .45 hollow-point; the fruit is here one second and gone the next. Even more dramatic. Action; reaction. It’s not like a video game where you re-spawn. It’s not special effects like a movie. It is real.

You need to teach your kids empathy. How to treat people.

Some kids are defective and can’t be thought that effectively. I’ve unfortunately known some. Now it’s incumbent on the parent to ensure that that child does not get a firearm. Get a safe — two preferably. Lock up the gun. Separately, lock up the ammunition.

Even then, don’t keep it a mystery.

If junior wants to shoot, take them somewhere safe like a range and let them shoot in a supervised manner. Kids are curious. If you tell them “no” then they’ll find a way around it. A conditional “yes” goes a long way.

If not a gun, why not a car into a crowd? He was old enough to drive. Or a knife. Or a bow?

The same thing goes with “bullying.” Talking about this concept in the abstract makes it a thing unto itself. You can blame the thing without doing anything about it. Kids are good at bullying, picking at everything that is different about someone. Kids get that from us. Look at the It Gets Better Project with respect to GLBT kids, then look at churches and politicians, then look to yourself. What are your views on gays? How are your projecting that onto your kids? I’m using this as an example, one of a myriad that I can choose from. Race. Gender. Ethnicity. Trade. Class. Income. Pick one. What are your views on it? How are you talking to your kids about it? How are you talking to your kids about those people?

This starts to go along the issue of god. The other side says that the reason is lack of God in schools. This is the same false premise. This is blaming the absence of something “in society” or “in school” as the reason. Again, it’s pointing away from yourself.

Same with all the folks that blame the teachers, principal or school. “Oh, it’s not my fault, that’s who you should look at.”

It’s not any of that.

“It’s not my fault, it’s [fill in the blank]

Bullshit.

The same thing we’re say about the kids not having a sense of consequences is the very same thing that can be said about ourselves.

It’s time for us all to stop looking for something to blame, rather we need to look inward to ourselves. This isn’t something that can be blamed. This isn’t something to be regulated. This isn’t something to be made illegal (hint: it already is). This is us.

We have to accept responsibility personally.

For this.

For everything.

- = -

After I wrote this I read an article wherein the suspect basically random. He was described as “not well” by a prosecutor. I stand by what I’m writing though.

In the end the individual is ultimately in charge of their own actions and is responsible for those actions. If not that then his guardian(s).

Sick people do strange things; some things are more-or-less random when the wiring is all messed up. It’s not a happy place when you can’t point a finger at any one thing.

Working out

Ever since I got the indoor cycle I’ve been working out near religiously. I think I’ve had two or three days in past month that I’ve not had any real activity. Those were also somewhat planned days anyway as rest days to let me recover a bit.

So I’m getting in shape.

Why?

There’s the stupid medical answers. Well, they’re not that stupid, but few people lose weight and exercise just because their doctor tells them to. It’s the good intention type of bull that never seems to work.

You need real and personal reasons to motivate any long-term endeavor.

Here are mine:

  • Dakar
  • Sex
  • Pants

Dakar: Long term. From looking at people riding around on motorcycles you would think that the bike does the work. Watching the race l know that’s not the case. These guys seem to be running a marathon every day. I need to be in what I would consider amazing shape to ever think about finishing. This works in two dimensions as well: fitness and resolve. Fitness to make it to the end and resolve to get to the next day and do it all over again when every bone and muscle wants you to stop.

Sex: Yes, call me vain, but I want to look good naked. You might not want to see me in my birthday suit, but for those that do I want to make a good impression. Razz Besides… aerobic conditioning is good for the heart.

Pants: I got my square pants — 34 x 34 and I’ll be damned if I don’t fit in them. They were getting tight. I wasn’t going to go up a size so there was only one other option left.

All three are important enough for me to continue. As a trifecta of important stuff I’m motivated to keep on it.

Regarding Dakar though… even though it’s a long way off… my goal this summer is to do two weekends with a century ride each weekend. Even better if I can do it back to back. That is the gating condition for me to give myself permission to buy a dirt bike.

Strange Bedfellows – Politics, Conservation, Sportsmen

I was reading this month’s issue of Field & Stream and was shocked at an article. Shocked because someone wasn’t toeing the line.

The conventional wisdom is that folks that hunt and fish are died-in-the-wool conservative republicans. The gun-totin’ bubbas that want nothing more than to get Obama out of the Whitehouse because that’s what Rush tells ‘em to.

The article “Sportsman’s Storm / Fish-and-game protections are in the path of a killer Congress” isn’t that.

It’s pointing out that the bills that are trying to get pushed through Congress are purely to serve the interests of the big money industries that want nothing more than to rape and pillage the country of its resources. When I see a quote like “even President Obama backed away from important deadlines on air pollution regulations.” The constant parroting that the environment and conservation is “killing jobs” is predicated on the fact that the only way to have jobs involves destroying the environment.

The Republican party has been so completely permeated by faith-based idiots that they think simply believing science doesn’t exist makes it go away. Imagine being back in the early 80′s when you still had leaded gas. In today’s thinking you would say that lead doesn’t cause any problems — besides, the tetraethyl lead additives are being made by an industry that supports thousands of jobs and you can’t have all those jobs go away.

This might be the closest I ever get to the gun-loving magazines to lay into the right-wing whackos I’ll ever get. Heh.

When conservation and conservatism clash. (Ok, it’s not conservative in the old-school way. It’s more religious, anti-science, lock women up, give tax breaks to your friends than the traditional conservative… but it makes for a good line.)

On Sex and Podcasts (A Question)

I know, I’m late to the game on podcasts. I haven’t had a long drive to work for eons and since then I’ve been in active meeting-y places where you can’t really chill with headphones on.

That changed right around January, 2011 — a little over a year ago. The building I worked in became empty and the five of us that were still at the old place had our own offices. It was quiet and I needed something to fill the void.

That’s when I started to listen to Savage Love — a podcast from Dan Savage.

Fast forward to a month or so ago when I got my indoor cycle and I suddenly had around 7-10 hours a week that I can’t really do a whole lot more than listen to stuff. Since then I’ve broadened my listening menu a bit.

I noticed an interesting thing about the podcasts and the regular participants in each.

Savage Love

  • Dan Savage – Male / Gay

Sex Is Fun

  • Laura Rad - Female / Straight
  • Gay Rick - Male / Gay
  • Coochie - Female / Straight

Having Sex, With Katie Morgan

  • Katie Morgan – Female / Straight
  • Cassie Young – Female / Bi (just left the show)
  • Jim – Male / Straight (very minor role)

Sex Nerd Sandra

  • Sandra Daugherty – Female / Straight
  • Dave Ross – Male / Straight (minor role)

(The women on the list seem to have some flexibility. (Research has also shown that women have a more fluid sexuality as well.))

There seems to be a woefully underrepresentation of dudes here. (Not that I’m going to start a podcast about sex myself, but it’s kinda-sorta odd I think.) I’m lacking a good theory about why this is.

I know that guys think about sex as much as girls — more if you think about the social stereotypes. Sex is a part of being human, so thinking and talking about it isn’t a problem.

There are more stereotypes that abound as well, in that the normal “straight guy” isn’t sensitive while gay guys and women (of any orientation) are.

I know for a fact that it’s not a 100% true thing. I’m a straight-identified male and I’m not squeamish about most things sexual — but I don’t put myself in the category of only looking to bang anything that moves. I’m very sex-positive. I consider myself a feminist, but at the same time I’m pro-porn. All the while I know I can have a conversation without immediately trying to cop a feel. (Yes, I’m laying all this out there… but none of this, honestly, is (or should be) shocking.)

Does anyone have any ideas about this?

Singularity of vision

We got some Chipotle at work today since a bunch of the team is working hard on a final push to finish up a large project. Cool.

A few hours pass. My computer’s checking something out of subversion so I look around aimlessly, waiting.

I look at the bags they came in. I’ve read some Chipotle bags and cups before and I was always at least mildly amused.

Then I saw this bag:

I looked at one side…

Cute. A subtle dig at me. I like it. I like the non-corporate-ness of the whole thing.

Then I looked at the other side and completely lost it.

OMFG!

Beautifully hand-lettered “lorem ipsum.”

I can’t help but laugh with the artists about this little in joke. This is normally a place-holder text for something to be added later… but this isn’t a placeholder, it’s real and awesomely hand drawn.

It’s like opening a book and finding a page reading “this page isn’t blank” stuck inside.

I did a bit of Googling for it and the first result had response from one of the artists:

Hopefully I can help shed a little light on this mystery…

I am an Associate Creative Director at Sequence, the agency in San Francisco that designed and developed this entirely hand-written packaging system with Chipotle.

As someone who worked on this project from its inception, I can tell you with absolute certainty that every single bag in this system was painstakingly hand-markered right in the middle of our office (we have at least two sharpie-stained tables to prove it.)

I can also share with you that this particular bag was completed intentionally. We thought there was something funny about writing out Lorem Ipsum (which, as we all know is used as placeholder copy) by hand…

We were hoping this little “easter egg” in the series would add a little fun and generate some buzz around the packaging redesign. Lucky for us, Chipotle is the kind of client that likes to have a little fun.

This particular bag has caused quite a buzz all over the interwebs–and the speculation and comments have been great to read.

You can check out additional shots of the packaging system (and some of our other work) at sequence.com.

AJ Kiefer
Associate Creative Director
Sequence

This was absolutely awesome. This is someone with a singular vision for an inside joke that somehow really got made.

Something like this isn’t something that comes from a committee, this is something that comes from one person having one dumb, stupid… no AWESOME idea. Props to both Sequence and Chipotle for making this bit of impressive joking around.

- = -

Later on one of my co-workers turned to me saying “programming is all about collaboration.”

I don’t think so. Well, not completely at least.

Sure, you’re on a team… but at the same time you need a leader with a vision. The vision of how the system (whatever system that might be) should work.

It’s never a complete vision which is where the collaboration comes into play, but you need someone that can set the vision in motion. We all are on the winning team, but someone had to stick their neck and start things up.

New Gun: Boberg XR9-S

Sorry to disappoint. I don’t have it yet. It’s being made for us though. I’ve been on the waiting list for around a year now and my name’s finally come up.  Smile

It’s a new gun that a guy up in Minnesota has been developing over the past four or five years. It’s a different action than most handguns though, which is part of the appeal.

The way that conventional handgun works is the slide grabs a round off the top of the magazine and shoves it up the ramp to the chamber. This works well for a full-sized gun where you’re lot looking to save a millimeter. The problem is that as you start to shrink down the gun the barrel gets shorted a lot faster than the gun gets smaller. The limitation is that the barrel must begin after the magazine.

The Boberg has a different approach. It’s not a new approach, but it’s different than most handguns. It has more in common with old WW-I belt-fed machine guns than the typical Browning tilt-barrel locking design.

This shows a conventional handgun with the slide back ready to chamber a new round. (Yes, I’m ignoring much of what makes a gun a gun — intentionally!) The slide will be moved forward by the slide spring (not pictured) and the stripper will strip a new round out of the magazine up the ramp and into the chamber. Once it’s in the chamber you’re ready to pull the trigger and start the cycle again.

In the Boberg the magazine is directly below the chamber. As the slide moves back under recoil the next round is pulled from the magazine and a spring shoves the assembly up. Now, when the slide comes forward again the new round gets shoved into the chamber. This lets you make the barrel substantially longer. A longer barrel makes more power since the pressure from the combusting gunpowder has longer to act on the bullet as it’s pushing it out the barrel.

All told this tiny gun is smaller than my hand and as powerful as a Glock 26, while being a lot smaller.

All told it holds 7 in the magazine and 1 in the chamber. All in a package that’s less than an inch thick.

They have some interesting videos on their web site. You should check them out!

I’m sure to have more about this gun when it finally arrives in a few months!

Privacy Policy

Google made a lot of news recently with their change to unify their privacy policy. It got all the media in a lather with talk of “is Google turning evil” or some such stuff like that.

This isn’t about Google’s policy.

It’s not about this blog’s privacy policy. (Short answer there: there is none. If you reply to something then your response if going to be public… go figure.)

This is about my privacy policy.

I had a discussion with a co-worker today about the blog… somewhat meta in a way.

I mentioned that I put private things on here and he looked back me aghast recoiling is shock.

I know I’ve talked about it before… but I’m reiterating here. By nature I’m not a private person. I am who I am, take it or leave it.

Can I hold things in confidence? Sure. If you tell me not to leak something, I won’t leak it.

I’m an open person, but I’m also a shy person. It’s a dichotomy. Ask me a question and I’ll give you a straight answer — I might beat around the bush, but I won’t lie to you.

- = -

I’ve been listening to a lot of podcasts lately. A couple that I’ve been diving into are:

That in itself opens me up a bunch… the thing that really gets me though is that there are a lot of people talking about sex; they talk about sex and don’t spontaneously combust.

That’s the thing.

I’m working my way up to that.

While those folks don’t burst into flames… it’s like the stock market… past performance doesn’t guarantee future results. I might burst into flames.

Just sayin’.  Smile

- = -

People are people. I wrote a while back that doctors are people. Sure. But every person falls into the category of “people” too.

Doctors, athletes, porn stars, engineers, poets, authors, mechanics alike are all people.

I look up to all of them (and many more professions as well).

- = -

Like I said: “I am me.”

Teardown Tuesday: Bicycle Bottom Brackets (virtual)

You know by now that I re-did my bike over the weekend. The part that scared me the most (for no really good reason) is the bottom bracket.

On the face of it it’s probably the simplest part of the bike. It’s nothing more than a bearing to hold the crank while you pedal.

The part that confused me was why there were reverse threads on one side — in fact the non-intuitive side.

Let’s start with the pedals. The right side (with the chain) pedal is normal right-hand thread. You screw it in like any screw. The left side is left-hand threaded; you screw it in counterclockwise. Even this is unintuitive. If the bearing locks up it unscrews itself… why is that?

I was looking around and finally found why: precession. The reasoning given at the late Sheldon Brown’s site is:

The right pedal has a normal thread, but the left pedal has a left (reverse) thread.

The reason for this is not obvious: The force from bearing friction would, in fact, tend to unscrew pedals threaded in this manner. It is not the bearing friction that makes pedals unscrew themselves, but a phenomenon called “precession”.

You can demonstrate this to yourself by performing a simple experiment. Hold a pencil loosely in one fist, and move the end of it in a circle. You will see that the pencil, as it rubs against the inside of your fist, rotates in the opposite direction.

Ignorant people outside the bicycle industry sometimes make the astonishing discovery that the way it has been done for 100 years is “wrong.” “Look at these fools, they go to the trouble of using a left thread on one pedal, then the bozos go and put the left thread on the wrong side! Shows that bicycle designers have no idea what they are doing…”

Another popular theory of armchair engineers is that the threads are done this way so that, if the pedal bearing locks up, the pedal will unscrew itself instead of breaking the rider’s ankle.

The left-threaded left pedal was not the result of armchair theorizing, it was a solution to a real problem: people’s left pedals kept unscrewing! I have read that this was invented by the Wright brothers, but I am not sure of this.

But here’s where it gets tricky.

The bottom bracket is backwards to that. The right side is reverse-threaded and the left side is normal threaded. What gives? All I ever found was “it’s like that because the other way would tend to loosen.”

It’s the same thing applied to a larger surface. It’s as if the force applied to the outside of the bearing is opposite to the real force applied to it — as if the bearing shell was turning opposite to the spindle. It’s like you’re looking at a planetary gear system and the outer bearing race has the opposite force applied; the opposite force serves to screw it in further!

Amber alert – Fail

On Saturday when I was heading out to Eddy’s Bike Shop to pick up the bar wrap I heard the emergency broadcast tones on WCPN, the local NPR station.

The tone came and went and the normal program came back on.

There was no indication what the emergency was.

On the way back, perhaps three-quarter hour late, the same routine happened again. Tone with no additional information.

Further up the road I saw one of the electronic billboards with “Amber Alert” but I didn’t have time to read it.

I learned today that the subject of the Amber Alert was killed along with her daughter. The perpetrator went on to kill himself too.

The question I have in my head: what would have happened if the system worked as designed? What if the radio broadcast had any information?

<sigh/>