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8219 Results for "3D printing"

  • Breathing gas analysis and respiration rate
  • Log     from Medical tricorder
  • Just two examples: If your breath has an acetone-like odor, it's a warning sign for diabetes and if your breath has an ammonia-like odor, it's a warning sign for chronic kidney failure. Target gases of the FIGARO TGS 2620 sensor are amongst other substances:...

  • X11 Application Migration pt. 1
  • Log     from Metaverse Lab
  • I needed more than just having an SSH tunnel from within Janus. The ability to have remote X applications migrated into VR gives a metaverse developer much more power to access and create content without having to leave the client. I strongly believe...

  • Sensor Testing
  • Log     from 3D Magnetic Field Scanner
  • Maxwell CoilI've decided to use a Maxwell coil to calibrate the sensor(s) on the scanner. Early experiments have shown that the datasheet scale values are rough estimates of the true sensor scales, and calibration will be necessary to obtain acceptable...

  • Human Timeframe Tests (De-ghosting)
  • Log     from Bullet Movies
  • The goal for this experiment was to prove that the frame-separation and ghost-correction algorithm works. Here's the test image as taken with a DSLR. The camera exposure time (shutter open) was 15 seconds, consisting of a 4 second red flash, three seconds...

  • Adding controls
  • Log     from Nixie Tube Power Supply
  • For the final design, I also wanted to be able to provide a means to enable/disable the power supply and vary the output voltage. Enable Enabling/disabling the power supply is necessary if we want to implement tube blanking: We can turn the nixie...

  • Three PCB boards
  • Log     from Aruna - ROV
  • Apsu PCB Design Since the beginning of the project I wanted to create a PCB that houses the electronics of the project. This was later further motivated by the big rats nest and space limitations of the prototype board I was using. Some wires kept going...

  • Data processing
  • Log     from Compact, low-power Geiger counter
  • Setting the update interval To save power, I've decided to update the display once in 5 seconds. Dose rate is a statistical value, so there's not much point to update it faster. Between updates we can stop the CPU, since the boost converter and the radiation...

  • CPLD Topics
  • Log     from HD6309 Singleboard Computer
  • A couple of other questions that I've been asked revolve around programming the CPLD, which I'll try to summarize here.CPLD Programming Questions regarding the Altera EPM7128S seem to fall into two 'buckets': tooling, and issues with flashing. CPLD Tooling...

  • Breadboard to PCB
  • Log     from 5+ Axis Robot Arm
  • 48 hours with KiCAD has been a big education. When I say 48h, I don't mean two days. I stayed up crazy late in a very obsessive way. Making PCB designs look nice feels good in the same way that straightening a painting feels nice. It's definitely dangerous...
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