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Making a Full Color White Light Hologram
Using 123D Catch iPhone app, I captured a model of my wife Carla, and then took that an made an 8x10" full-color white light hologram from Zebra Imaging:My thoughts: 123D Catch is pretty easy to use...
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Safecast bGeigie build event in Santa Monica
bGeigie Workshop Santa Monica, CA November 1-2, 2014.Build a GPS-enabled, data-logging, hand-held radiation detector, learn about citizen radiation monitoring, and connect with a growing network of...
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Dorkbot SoCal 56 - The Reboot, Oct. 19
Dorkbot SoCal 56 - The Reboot***** Sunday, October 19, 2014***** 11:00 am to 1:00pm***** Machine Project***** 1200 D North Alvarado Street***** Los Angeles, CA 90026***** Google map of Machine...
View ArticleKinect-based 3D scanning software
I am looking for some alternatives to 123D Catch. Here is one, KScan3D, which says "With KScan3D software and Kinect or Xtion sensors, you can scan real objects and export 3D models in minutes."Other...
View ArticlePhotogrammetry Options
Photogrammetry options for 2D to 3D models:123D CatchPhotomodelerAgisoft PhotoScanVisualSFM (structure from motion)
View ArticleOpen vSwitch on Ubuntu
OMG, don't try to build Open vSwitch from source if you can avoid it, if you are on Ubuntu just follow these steps to apt-get it, and then it builds the database and runs itself.The problem is that...
View ArticleReceiving Multicast on Ubuntu 12.04.4 LTS
If you are running Ubuntu 12.04.4 LTS, you may be surprised that you cannot receive multicast packets in your programs using the normal socket interface, but then you run tcpdump and can receive the...
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Dorkbot SoCal 57 on Dec. 7
Dorkbot SoCal 57***** Sunday, December 7, 2014***** 12:00 noon to 2:00pm***** Machine Project***** 1200 D North Alvarado Street***** Los Angeles, CA 90026***** Google map of Machine ProjectSpeakers...
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First run with Kinect Xbox & Skanect
So I went ahead and picked up a Kinect for Xbox and Skanect (for Mac). By the way, the Kinect came with a power supply, so I didn't need to purchase a separate power supply.Skanect was pretty easy to...
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Long Loops and Slow US Internet Access Speeds
Like many people, I've been wondering why the US seems to lag many other countries on Internet access speeds.Here is a key issue: Our twisted-pair copper local loop infrastructure has longer local...
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3D Scan/Print Kiosks Review
I recently ran into two 3D scan/print kiosks in malls. The first is DOOB, which has kiosks at Santa Monica Place, CA (just off Third Street Promenade) and Chelsea Market NYC. The kiosk has a very...
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Netflix Speed Graph over Time
As we learn about the new "Net Neutrality" rules from the FCC, I thought it would be interesting to share the graph from the Netflix Speed Report of average Netflix access speed for various carriers...
View ArticleDesktop GUI for AWS Ubuntu
This seemed harder to Google for than you'd think.Imagine you want a desktop on Ubuntu Linux on an AWS EC2 instance, and you'd like to access it from OS X. The sanest thing is to follow these...
View ArticleWeb controlled robotic arm with Pi
A web controlled robotic arm based on the Raspberry Pi.There is a daemon running in the background called web_arm.py, which sets up a FIFO (arm.fifo) to receive commands. The cgi-bin is xy.py which...
View ArticleNew Affordable Bus Robotic Servos from LewanSoul
No idea as to the actual quality of these, but LewanSoul now has the LX-16A 17 kg·cm (236 oz·in) @7.4V robotic servo controlled over a bus (perhaps with the same command structure as a Dynamixel) with...
View ArticleInverse Kinematics Take 2
The current inverse kinematics code I have for my Lynxmotion AL5D arm fails to converge towards the edges of the chess board.One efficient way to solve IK is the FABRIK algorithm. There is a Python...
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ikpy - Inverse Inematics, yes. Limits, no!
The Python inverse kinematics library, ikpy, works fine, and it has a cool mechanism to plot chain visualization from Python using matplotlib.pyplot. EXCEPT ikpy seems to have no concept of collision...
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Trying Caliko FABRIK Inverse Kinematics in 2D
I downloaded Caliko, the FABRIK inverse kinematic solver in Java. It has great documentation, along with guidance about how to properly use its jars as libraries in Eclipse (I don't do much Java, glad...
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FABRIK Inverse Kinematics in 3D with AL5D Arm
FABRIK with Caliko works great for inverse kinematics in 3D as well! It took me a long time to determine the proper constraint on the first bone (a pan table) to rotate only. Not sure if I did it the...
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3D Printer CAD Workflow for Mermaid
My daughter wanted me to make a mermaid:This required some "organic" curved shapes. I've found that SolidWorks Apps for Kids is a great way to make those kinds of shapes:But since you can't import...
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3D Printing a Roblox Character in Full Color with Shapeways
If your kids loves Roblox, they will be very excited for you to 3D color print their Roblox character! First, download and run Roblox Studio. You can work with a basic "Baseplate" template:Next, hit...
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SculptrVR to 3D Print Workflow
SculptrVR is a free-form 3D sculpting app for multiple VR platforms, including Oculus Quest, which I have.My son made a cool sculpture in SculptrVR, and I decided it would be neat to 3D print it. Here...
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SculptrVR to Roblox Workflow
SculptrVR is a fun, free-form VR sculpture program. After my son made a cool design in the app, I extracted the .obj mesh from the Oculus Quest (see this post for all the details). Besides 3D...
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Article 0
A while back, I built Chaney Electronics C6981 geiger counter kit, which uses the SBM-20 tube. I had nothing hotter than my granite counter-top to test with (which was maybe 200% of background...
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