Arduino Park Under the Magnifying Glass

Lots of little details added. Sang is there because he will be the tour guide when the park opens. Which is still about a week away.

As I look at this thing, I wonder. That 103 chip can’t have all of its pins soldered together, that doesn’t make sense. But I’m tired of squinting at the board for today. I’m thinking it will only take a few more days to add in the details and then I can go back and tweak stuff. Then: writing the tour script.

Yes, the board has gone from green to teal. My nephew says that even teal isn’t bluish enough, while I’m thinking that teal is too bluish. A rose by any other name . . . probably wouldn’t be green or blue.

Posted in Uncategorized | Leave a comment

Acetaminophen (Paracetamol) in sketchup

I saw that a molecule was trending on Yahoo, and how often does that happen? So I thought, “Here’s a challenge.” I went over to the wikipedia entry on paracetamol (aka acetaminophen) and copied the model into ball and stick form. It took about twelve minutes. This is what I got:

— [Record scratching noise.] Hold on, those carbon bonds don’t look right! Since when did carbon have five bonds? Well, before you scold me, take a look at what wikipedia has:

All the carbon bonds in the hex ring are single, which isn’t right either. Unless that dotted line inside the ring means something I don’t know, which (sigh) it probably does. (And now that I look at the darn thing, I realize that the double carbon bonds aren’t fixed, because all the atoms in the ring are carbon.)

Anyhow, then I looked at the skeletal formula, and put in the carbon bonds based on that.

First, here’s the wikipedia-given skeletal formula:

And then here’s my ball and stick based on it:

Which I hope is correct. Anyhow, this took me a lot more than twelve minutes because of the confusion.

Posted in Uncategorized | Tagged , , , | 1 Comment

Arduino in Sketchup: Modulate my pulse widths, those are tildes!

Since the last time I posted my work on the Arduino Uno in Sketchup Project, I have started using a magnifying glass. Lo, the minuses in front of the digital pinout numbers turned out to be tildes (ie, ‘~’ –which, with the quote marks, looks like an emoticon of a dolphin face with a wry smile!).

So why are there minuses or tildes on the Arduino in the first place, you ask? Because they indicate PWM (‘pulse width modulation’) programmable pinouts which can be used to control the brightness of LEDs among other things. It’s all explained in pp. 56-62 of Getting Started with Arduino. However, the book does not mention that 3, 5, and 6 are also PWM according to the markings on the Uno, which indicates to me that making these pins PWM was an upgrade for the Uno that came after the book was published.

I’m sure there are old Arduino hands who are thinking, “Sheesh, this guy is like a super newbie.” Yeah, well, that’s how come there’s Zero after Engineer. Anyhow, if you’re a newbie too then maybe it’s best to follow along with another newbie, who won’t emit disdain if you don’t know what a d0/47/25V is, which I don’t (yet).

Anyhow, I have to say that I’ve learned almost as much about the Arduino by studying the layout in Sketchup as I did in reading the book. In that sense, 3D modeling is like a hands-on experience!

(SIDE NOTE: I have uploaded uracil to the Google 3D Warehouse. Link is here. Strangely enough, a search on ‘uracil’ shows that there is a username ‘uracil.’ I won’t ask.)

Posted in Uncategorized | Tagged , , , , , | Leave a comment

Thymine Sketchup model uploaded to Google 3D Warehouse

This completes the uploading of the DNA nucleobase models to Warehouse. To see it, all you have to do is go to Google 3D Warehouse and enter Thymine. I realize that Google primarily intends the Sketchup/Warehouse paradigm for architectural modeling, but it’s still pretty amazing to me that I’m the only person to model basic molecules there.

Posted in Uncategorized | 2 Comments

Arduino Uno in Sketchup (in progress)

Based on the Arduino Duemilanova models I found in Google 3D Warehouse. It seems that one Arduino model is based upon another in the Warehouse in an evolutionary growth, so it’s hard to give credit for the original design. Suffice to say, I’ve had to revise and add stuff, but I didn’t start from scratch.

Anyhow, my goal is to show every single jot and tittle on the Arduino board without recourse to phototexturing. Then sometime this month I plan to scale it a thousand fold, set it on a foundation and erect observation platforms and conduct a guided tour . . . it’ll work. Trust me.

Posted in Uncategorized | 3 Comments

Sketchup Molecular Model for Guanine, Uploaded to 3D Warehouse

Check it out in Google 3D Warehouse here.

I’m going slow on the uploading, for two reasons. First, there’s always a good possibility that there is a fundamental shortcoming in my design which will force me to redo everything. Second, I want to concentrate on other projects now.

Still, my ambition is to upload a hundred molecules.

(UPDATE 1/11/11 [oooh, I just noticed that!]: True to prophetic utterance, I made a mistake and had to omit a double bond in the guanine model that I originally uploaded. This updated version of the blog post is correct, as is the model now resident in Google 3D Warehouse. He Said.)

Posted in Uncategorized | Tagged , , , , | Leave a comment

Icosahedral Logo (Work in Progress)

Kind of overwhelms the images in Warehouse. Have to work on that. But at least I toned it down from this:

Posted in Uncategorized | Leave a comment

Uploading Adenine

That’s what I uploaded. This time I think it will stay. You can visit it in the 3D warehouse by clicking here.

Here is my stupid logo:

Originally, I used the Martian tripod as my logo, then I had second thoughts. What am I trying to represent with that? It didn’t seem to have anything to do with molecules, for sure.

Anyhow, this logo is just a placeholder. I’ll come up with something nicer. I’ve got ideas. I’ve always got ideas.

And my master plan to monopolize the Google 3D Warehouse ball and stick molecular model market will pick up speed now that I’m pretty sure most of the bugs of my molecular maker have been ironed out.

(Now there’s a mixed metaphor that it doesn’t pay to think about!)

Posted in Uncategorized | Leave a comment

icosahedral adenine in sketchup

A problem with putting the letters on the sides of the icosahedra (yes, that is plural for ‘icosahedron’ according to the WordPress spell checker — which by the way treats ‘WordPress’ as a typo). Where was I? Oh, yes, a problem with putting letters on the sides of the icosahedra. The 3D letters are outlined in black, and from a distance all you can see of the letters are the black outlines, and from an even greater distance all you can see of the faces are the outlines of the black letters, the color of the faces being completely crowded out.

I tried to remedy this by changing the letter color to transparent:

Then I made the letters flat and tried a different font (Calligraph421BT — did you know there was such a thing anywhere, let alone in Sketchup?). And that did look nicer:

It looks nicer still in close-up:

Oooh, this looks so pretty I could see hanging a ‘DNA Mobile’ made of atoms like this! Calligraph421BT, your existence is justified!

Posted in Uncategorized | 1 Comment

Icosahedral chlorine atom

As I started to add more atoms to the Sketchup molecule maker kit, I realized that the chemistry model color convention breaks down past the basic four atoms of hydrogen, oxygen, nitrogen, and carbon. Green, for example, is used for both chlorine and phosphorus!

So I thought, what if we label the atoms for better identification? Then I thought it wouldn’t look too cool to do this on a ball, but how about a multi-faceted shape, say a buckyball? Well, that proved impractical, but I did find this nifty icosahedron (twenty-sided) in the Warehouse.

The original was made by Google, but then I modified it so that all the faces are manifestations of one component. Thus if I change one face, I change them all. This makes it easy to create a veritable zoo of atoms!

Plus, it looks cool.

Posted in Uncategorized | Tagged , , , | Leave a comment