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Sleep Study

Sleep Study

Well, I finally did it. After years decades of not sleeping well, and snoring away the time I do spend sleeping, I did a sleep study. I’ve been wanting to do it for a few years, but you either need insurance or money to do one, and in the past, I’ve had neither…

Yeah, I’ve got sleep apnea. If you don’t know what that is, it basically means you stop breathing while you are sleeping. You don’t have to be a medical doctor to know that’s probably a bad thing. In fact, it’s believed that sleep apnea may have contributed to Reggie White’s death.

I’ve got friends with sleep apnea who got tested, and ended up with CPAP machines. One told me it changed his life, and urged me to get tested. (Hey Les, I finally did it!)

The test itself was a lot of fun for a nerd like me. They connected 27 sensors to my body to capture data. This included 15 on the head, one on each ankle, some on the chest, back, and stomach to monitor breathing, and a pulse sensor on the finger. (Interestingly enough, I’ll be getting my own pulse sensor very soon.)

They wire you up and let you sleep a few hours to monitor things, and then (if needed) put a CPAP mask on you, and it helps you breathe. It was a little weird, but I’m sure I’ll get used to the mask, especially if it means better sleep and better health. (The machines are also much quieter than they used to be.)

I was also told that surgery can be an option rather than a CPAP machine, but they do not recommend it, and it doesn’t always work. I’m cool with the technology instead.

I did do a little probing about the data that got collected from the study. I asked it if was just numerical data from the sensors, perhaps in a CSV file. The technician said that was “basically” correct. (It was hard to gauge how technical the technician was.) I asked about getting a copy of my data. They told me I’d need to ask the doctor, as it was for him. I personally think it should be available to me. I’m the patient, right? Isn’t the data about me? Shouldn’t they be required to share it with me?

Anyway, I was told that I slept good with the mask on. I didn’t feel like I did, but I think “medically” I probably slept good. I should find out in a few weeks when I get my own machine for home use. (The mask probably wasn’t optimal either, as they spend some of the time adjusting the pressure and monitoring the sensor data. Hopefully they’ve got it all dialed in at the end.)

Oh, I was also told that the home machine logs data and the doctor takes a look at that data as well. Anyone know how to get that data from the machine? :)

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2XL Labs

2XL Labs

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Holiday Make-A-Thon 2011

Make-A-Thon

Join us Friday, November 25th, 2011 at Bucketworks in Milwaukee, Wisconsin for the 2011 Holiday Make-A-Thon!

The event is family friendly, fun, and free. (Though donations towards materials will be accepted.)

The guys from Milwaukee Makerspace will be there… so should you!

Some of the activities include:

  • Learning to soldering
  • Gourd painting
  • Knitting
  • Hand-painting ornaments
  • Gift-wrapping station

See who else is coming (and RSVP) over on Facebook.

Those interested in helping out by volunteering, or who just want way more details, can check out this Atrium thread.

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Simplfying STL Files with MeshLab

Cow (Sketchup)

So back when I first used the MakerBot at Milwaukee Makerspace, my daughter asked me to make her a cow. (The kid likes cows!) Since my 3D modeling skills were not up to the task (and still aren’t, at least not for a cow) I found a cow in the Google 3D Warehouse and brought it into Sketchup.

It looked fine, so I exported it as an STL file and did a print. A very small print. It looked OK (but not great) and since it was small there wasn’t really much detail.

Since then I’ve looked at other files in the Google 3D Warehouse, but since most of stuff there is for screen display and not 3D printing, things tend to be very complex, at least in the well done models. More complex than might be needed for a 3D print, at least from the Makerbot.

I’m still pretty new at this 3D modeling stuff, but simplifying the model seems to be what we want. In the 2D world I’ve been doing the same sort of thing for 20 years, but in 3D? It’s new ground.

Enter MeshLab!

From the MeshLab web site: “MeshLab is an open source, portable, and extensible system for the processing and editing of unstructured 3D triangular meshes. The system is aimed to help the processing of the typical not-so-small unstructured models arising in 3D scanning, providing a set of tools for editing, cleaning, healing, inspecting, rendering and converting this kind of meshes.”

I’m mainly interested in using it to reduce the complexity of 3D models.

Cow Original (MeshLab)

Here is the STL file I created from the original cow in Sketchup, as seen in MeshLab.

Cow Reduced (MeshLab)

Here is the same file after reducing the complexity using the Quadratic Edge Collapse Decimation filter. I still feel like it’s a bit of black magic figuring out exactly what numbers to use, and what checkboxes to check, but this is what I used for this one:

MeshLab Settings

I’m fairly pleased with the results (though I haven’t tried to print it yet) but now that I’ve got a (loose) handle on mesh reduction, I’ll dig into the tutorials on YouTube from MrPMeshLabTutorials, including this one on Decimation.

(Of course I still wish MeshLab had an Undo function.)

Oh, and if you really want to 3D print a cow, this recently added to Thingiverse cow is probably the one you want. :)

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Winter can suck it!

wintercansuckityo

It’s been two days of cold weather.

What do I define as “cold weather” exactly?

It’s “cold weather” when I have to enter my car in the morning by crawling through the back door because all the other doors are frozen shut.

On a good day I can get out of my car at work using the driver’s side door instead of exiting via the back door.

I haven’t had a “good” day yet.

But hey, I should only have to deal with this for about 6 more months before it warms up.