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Charles Steinkuehler
Worked at NewTek
Lives in Topeka, KS
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Machinekit stickers for +seemecnc Midwest RepRap Festival arrived today!  Here they are making my in-progress CoreXZ look even better.  If you want one, find the Machinekit booth at MRRF!
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I really wish i lived close to the Midwest 
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Michael Haberler has recently succeeded in separating the trajectory planner from the motion controller and made it a new HAL vtable module.  While the details quickly get into technical programming issues, this seemingly eso...
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I'm finally laser cutting parts for the +Nicholas Seward CoreXZ printer thanks to the new Topeka makerspace: 712 Innovations and an Epilog Legend 36EXT!
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Awesome!  Thanks Nicholas!!!
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Machinekit images join the standard Debian builds for the BeagleBone!

Thanks +Robert Nelson !!!

http://elinux.org/Beagleboard:BeagleBoneBlack_Debian#BBW.2FBBB_.28All_Revs.29_Machinekit
Checking The Debian Image Version. You should check the version of the image on the microSD/eMMC by opening the ID.txt file in the FAT partition. root@beaglebone:~# cat /etc/dogtag BeagleBoard.org BeagleBone Debian Image 2014-03-19. This file can also be accessed via a PC (Windows/Mac/Linux) via ...
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Great deals on BeagleBone books until 5AM PT, Jan. 19!
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One day only!   :)
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I've officially run out of fingers...
 
Mathematicians make a major discovery about prime numbers #Math
http://www.adafruit.com/blog/2014/12/29/mathematicians-make-a-major-discovery-about-prime-numbers-math/

Via Wired:

In May 2013, the mathematician Yitang Zhang launched what has proven to be a banner year and a half for the study of prime numbers, those numbers that aren’t divisible by any smaller number except 1. Zhang, of the University of New Hampshire, showed for the first time that even though primes get increasingly rare as you go further out along the number line, you will never stop finding pairs of primes that are a bounded distance apart — within 70 million, he proved.

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Whenever I want to read something lengthy that I completely fail to grasp, I Google "Prime Number Theorem".  Mmmmmm blissful bewilderment.  
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Getting ready for the +seemecnc Midwest RepRap Festival by building the CoreXZ printer designed by +Nicholas Seward.  First step: Painting!  Yes, they're pink on one side and blue on the other.  I let my kids pick out the paint colors!  :-)
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Bummed this is same weekend as embedded linux conf. Have fun and post pics please! :)
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Tormach is releasing a new controller for their mills based on LinuxCNC/Machinekit.  Looks sexy, and I know the foundation is solid!
http://www.tormach.com/pathpilot
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wow congratulations! Haas is next?! ;)
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Sure, a Pololu or Step-stick and a pulse generator will get a stepper motor moving, but if you're wondering how to optimize your stepper motor drive parameters, +Ryan Carlyle wrote a great post over in the 3DP Ideas group to help you get started: https://groups.google.com/forum/#!topic/3dp-ideas/qqTGMIFCKpU  I can't wait for the 3D Printer book he's working on to come out!
The big problem with steppers is the fact that the PWM current choppers in the drivers are quirky and interact with the motor specs and PSU voltage in some non-obvious ways. Specifically, the low-end driver chips we tend to use for 3DP (eg A4988, DRV8825) have current chopper duty cycle ...
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I only understood half of it, but some very interesting data in there.
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Thanks to the tireless efforts of Robert C. Nelson, Machinekit uSD images for the BeagleBone are now part of the regular Debian image build cycle.  The first image is available now, with updates expected about every two weeks...
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Another great post on using Machinekit with the BeagleBone by Brandon Heller: https://designmakeshare.wordpress.com/2014/12/29/faster-and-easier-machinekit-install-using-packages/
A past post here described installing MachineKit from source, but now you have a much better option: using a package-based install. What's a Package? 'Package' refers to a Debian package, which bri...
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Charles Steinkuehler

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I've officially run out of fingers...
 
Mathematicians make a major discovery about prime numbers #Math
http://www.adafruit.com/blog/2014/12/29/mathematicians-make-a-major-discovery-about-prime-numbers-math/

Via Wired:

In May 2013, the mathematician Yitang Zhang launched what has proven to be a banner year and a half for the study of prime numbers, those numbers that aren’t divisible by any smaller number except 1. Zhang, of the University of New Hampshire, showed for the first time that even though primes get increasingly rare as you go further out along the number line, you will never stop finding pairs of primes that are a bounded distance apart — within 70 million, he proved.

Read More
http://www.adafruit.com/blog/2014/12/29/mathematicians-make-a-major-discovery-about-prime-numbers-math/
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Jim Powers's profile photo
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brian patricia's profile photo
Ryan Carlyle's profile photo
Michael Brown (Holotronic Dk)'s profile photo
Brad Hopper's profile photo
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