CNC Build Club – New Printer Demo

isis3d

 

A this week’s CNC Build Club  Thursday, 8/29/2013 @ 7:00pm, we are going to have a 3D printer demo from a new Chicago hardware startup called Isis3D.  They are going to demo their new Isis One 3D printer.   The printer has a large 300mm x 300mm build area and is producing some awesome prints.

isis3d_2

After the demo we will go back to our regular activities of discussing, building and using CNC equipment.  Next week we will gathering a huge collection of CNC controller boards including some cool new things like the BeagleBone Black running LinuxCNC and the Simple Cortex runnnig Smoothie.

27

08 2013

Frank Hammer Genetics & Epigenetics talk tonight!

Frank Hammer, a retired scientist from Monsanto, will be giving a talk tonight on Genetics and Epigenetics. The session is divided into two parts:

1st Discussion

1. General genetics, which would include the structure of DNA,
2. How the four bases or nucleotides, adenine, thymine, guanine and cytosine are paired,
3. What is a gene,
4. What is messenger RNA (mRNA)
5. How mRNA codes for proteins,
6. What is a codon,
7. How proteins are manufactured in the ribosome,
8. Answering questions.

2nd Discussion

1. The polymerase chain reaction (PCR), which is how we multiply DNA millions of times so it can be forensically and biologically analyzed,
2. Epigenetics, its causes and effects,
3. Answering questions.

Frank’s Bio

Frank has been involved in the life sciences for about sixty years. Has written two book chapters, many reports, including one about antisense which was published by Frost & Sullivan. Frank has eight patents, in the fields of food technology and diagnostic biochemistry. His avocations are reading and writing poetry.

And that’s all Frank wants to say about himself… Find out more at the meeting :)

See you all soon!

When/Where

Tue, August 27, 9:00pm – 10:00pm
PS:One, 2nd Floor
3519 N. Elston Chicago, IL 60618

27

08 2013

PS:One Orientation: Sunday August 25 at 4pm

Us in 3DPS:One orientation (previously known as N00bs’ Paradise) is happening Sunday at 4pm in the downstairs lounge.

Never been, but want to learn more about PS:One?
New member?
Old member, but want to know all the secrets of the inner workings of PS:One?
Want to get certified, but don’t know how?
Want to doocritize, but haven’t even heard of do-ocracy?
Then this event is FOR YOU!
Free, open to all event – just show up at 4pm on Sunday the 25th

You’ll learn:

  • the one and only rule you need to remember at PS:One!
  • what mailing lists and IRC channels you should join
  • how to get discounts on classes, tee-shirts, stuff around town, and even monthly dues!
  • how to get certified on equipment
  • how to donate equipment to PS:One
  • how to create a class, event, group, meeting, or what have you
  • how to request a class, event, group, whatever
  • how to blog
  • the wiki.
  • do-ocracy and how to do-ocratize things

The basics:

  • Who: anyone who wants to learn more about PS:One and how it works
  • When: Sunday, August 25 at 4pm
  • Where: PS:One 1st floor lounge
  • Cost: free

Here are the class notes – please feel free to read beforehand (Note: these notes are not a good substitute for class attendance).

23

08 2013

Pi on the Road

gps-tracker_grande

Tonight at NERP, Craig LeMoyne will be giving a demonstration of Adafruit’s Ultimate GPS module for the Raspberry Pi. To get a preview of the fun stuff that you can do with it, check out his blog at http://chicagodist.com/blogs/news/8319495-gps-camera-fun-with-the-raspberry-pi

NERP is not exclusively raspberry pi, the small computer interest group at Pumping Station:One in Chicago.
Find NERP and Pumping Station:One

at http://www.meetup.com/NERP-Not-Exclusively-Raspberry-Pi/
and http://pumpingstationone.org/

NERP meets at 7pm 8-12-13 at Pumping Station:One, 3519 N. Elston Ave. in Chicago.
Doors open at 6:30pm. NERP is free and open to the public.
Ed Bennett ed @ kinetics and electronics com

 

 

 

Tags: electronics, embedded, NERP, Open Source, raspberry pi, hackerspace, Beagle Bone, Element14

 

 

12

08 2013

Giant Coil Sculpture at Hyde Park Art Center

 

Coil-in-Shop

You may have seen me (with amazing help from Madeleine Klichowski, Dan Locks, Matt Triano, and Pipefitter Dave) hard at work on some very curious looking objects (like a giant coil) in the shop and electronics lab. Well, finally, we’re done– it’s new kinetic sculpture and it’s now installed at the Hyde Park Art Center, for a group show opening Saturday, Aug 10, with a reception from 3-5pm.

2013-08-06 11.02.25 Red Ball Install

 

The show will also feature a 10 foot wide version of Red Rubber Bands (pictured below in smaller form). The new version looks AWESOME (and I’ll be sharing photos as soon as I get them).

RRB 1697 opp

Even more fun, Maker Camp interviewed me about the sculptures this week. (Also participating, circuit bender Patrick McCarthy.)

YouTube Preview Image

So, if you’re around Hyde Park tomorrow, please stop by the reception from 3-5pm. Or come check it out any time during normal gallery hours til September 21, when we’ll close the show with a public critique.

(If you’d like more info on my sculpture, check out my website.)

Cheers!

Jesse Seay

 

09

08 2013

Build a Light Theramin with Moldover this Saturday!

moldover_awesome_01_500

Hey musically inclinded members of hackerspace and surrounding community. Want to build something that you can put to use in two hours? Then come on by this Saturday (8.10.13) at 2pm for Build a Light Theramin with Moldover!

In this basic soldering workshop, Moldover will take you through the steps to build your own Light-Theremin CD case (http://www.youtube.com/watch?v=T8UzSVFUIc0). Even if you’ve never soldered before, this workshop will give you the confidence in two hours.  If you do have experience you’ll learn how to solder more efficiently, and walk away with a fun and unique instrument – plus a copy of Moldover’s latest album!

This workshop starts at 2pm, entry is free, open to the public, and the kit will cost $25 to purchase. Seats are limited to 20 so to reserve your spot hit up PS:One and Moldover on Twitter (@PumpingStation1 + @Moldover) or email me (the author of this post) @gmail.com.

08

08 2013

ShapeOko!

For the past few months, my CNC Build Club project has been building a <a href=”http://www.shapeoko.com/”>ShapeOko CNC mill</a> from a kit Jeff donated to PS:One to replace the machine hacked into a pick-and-place. The ShapeOko belongs to PS:One and will (hopefully) be a permanent part of the space.

On July 21st, I moved the machine to its home in the shop, finished wiring it up, and tested the motion of the stepper motors. It moved like it was supposed to on the x, y, and z axes, so I moved on to drawing the Hello World job (the ShapeOko logo) in the air. That worked perfectly, too. So now it was the moment of truth – time to find a drawing implement, tape it to the gantry, and send the GCode to draw the logo on paper.

After several attempts at finding the right pen or marker, and figuring out how to tape it securely, this was the result:

helloworldsmall1 helloworldsmall2

A very happy me, and a successful Hello World.

I started this project to learn more about CNC projects from the ground up. Along the way, I learned a bit about tapping, soldering, and Arduinos too. Here’s a look back at it:

This was the beginning:

shapeoko1small   Then I tapped more Makerslide and added the frame and rails:

shapeoko2small

Then I added the Z-axis:

shapeoko3small

Edward Ford, the Shapeoko’s inventor, happened to be at the space the night I finished the mechanical build of the Shapeoko:

shapeoko4small

After tweaking and tightening up the mechanical build, I assembled all the electronics I would need, mostly from donations to the project. (Thank you!)  Edward came back for ShapeOko night as part of CNC Build Club, and we got the machine wired up. Unfortunately, the x-axis didn’t move properly, probably because the GRBLshield controller got damaged during rework. So Bart donated another GRBLshield, and Ryan did some heroic rework on its connectors, and this one worked!

Colin donated a Dewalt spindle to the project, and the next step is to get some end mills, test the machine’s milling, and certify some people. I’m also looking at installing some limit switches on the machine. Of course, there are also options like a different spindle, a dual-driven y-axis, or a more robust z-axis. Those will be things for the CNC Build Club and other interested members to decide on.

I got this far with more than “a little help from my friends”. Thank you to the people who offered help, parts, or advice (in no particular order): Jeff, Jay, Steve, Colin, Ryan, Edward, Cat, Bart, Jeremy, Fernando, Jesse, and Everett. If I accidentally left you out, I’m sorry!

04

08 2013

Raspberry Pi (Rob Bishop), Aug 6th @ PS1

Raspberry Pi

 

This upcoming Tuesday (August 6th) at 7pm, Rob Bishop from the Raspberry Pi team will be swinging by for a evening of nonstop Pi goodness! This event is free and open to the general public.

Rob Bishop was the FIRST technical employee at Raspberry Pi and is currently one of two full time software engineers. Alongside his engineering responsibilities, Rob also acts as an “evangelist” and works to promote the educational mission of the Foundation.

An engineer and evangelist for the Raspberry Pi Foundation, he’ll be presenting a talk entitled “Raspberry Pi – One Year On” that will cover both the origin story of the Raspberry Pi as well as outlining recent developments. The talk will present technical information about the Raspberry Pi alongside a discussion of the Foundation’s educational aims.

Following the presentation, there will be an opportunity for an in-depth Q&A on both educational and technical matters.

01

08 2013

SEM, EDX and fun with liquid nitrogen

Our scanning electron microscope came with an Oxford Isis EDX detector that we were told was non-functional. After a little poking around, I discovered that the replacement power supply which supposedly didn’t work was shipped from London, where the default power is 240V. After changing the voltage, the computer suddenly recognized the electronics, and it passed all the self tests. That looked like a good sign, so the next step was to acquire liquid nitrogen, which is needed to cool the detector.

Fortunately, one of our members owns NFC, a company that, among other things, sells liquid nitrogen. He loaned us a dewar of LN2 so we could test it out. After transporting it back to the space, I asked Everett to watch from a safe distance and let me know if anything was spilling while I filled the dewar attached to the SEM. He took some video of the process. The plastic funnel I used was cracking as I was pouring, which in hindsight wasn’t that great of an idea, so maybe we need to find another solution here….

YouTube Preview Image

The detector took over an hour to cool down, but ultimately it worked beautifully! I kicked up the energy of the electron beam to 20 keV which excited the atoms in the sample to give off characteristic X-rays. The EDX unit measured the energy spectrum of the X-rays given off, and was able to suggest possible elements that have those peaks, which I could then label. The next day Susan Young, the microscopist who used this SEM when it was at its former home, came to the space to give me some advice on the EDX and the sputter coater.

At center is an aluminum sample stub, with a square of copper tape and a strip of carbon tape. The SEM is imaging an area showing all three surfaces.

At center is an aluminum sample stub, with a square of copper tape and a strip of carbon tape. The SEM is imaging an area showing all three surfaces.

After calibrating the detector on a copper target, I then tried imaging a sample that consists of an aluminum sample stub, copper foil, and carbon tape, that has some of each of these exposed. I’ve labeled three peaks for copper, one for aluminum, one for carbon, and one for oxygen. The peak at 0 is just an artifact of the detector. Here is a movie of the X-ray peaks building as the detector collects data:

YouTube Preview Image

Here is the complete spectrum:

EDXSpectrum

The EDX detector has the ability to determine not just what is in a sample, but where it occurs in the sample. I did this by defining energy windows, above. One for carbon, one for one of the copper peaks, and one for aluminum. Each time the EDX detects an X-ray whose energy falls within one of the bands, the EDX sends a pulse on one of several channels to the SEM. The SEM operates in X-ray mapping mode and, because it knows the beam’s position when the pulse is received, it makes a dot on a color coded map showing where that element occurs. This map is an overlay on the secondary electron image of the sample.

EDXMap

The aluminum peak is colored cyan, which dominates the upper left part of the sample. Magenta corresponds to the copper peak, which appears primarily on the lower left. Orange represents carbon. The detector didn’t detect that much of the carbon peak (seeing as it’s the smallest of the three), but orange dots are clearly visible on the right hand side. The surface in the middle is the edge of the copper tape, but it is almost vertical relative to the electron beam, so it doesn’t seem to be giving off many X-rays.

All in all, this is seriously cool technology.

Tags: ,

21

07 2013

PS:One Orientation: Thursday July 18 at 7pm

Hammering glowing iron on an anvil
Photo by Mr. T in DC

PS:One orientation (previously known as N00bs’ Paradise) is happening Thursday this week at 7pm in the downstairs lounge.  If you can’t make this event, the next one will be Sunday, July 28th at 4pm.

Never been, but want to learn more about PS:One?
New member?
Old member, but want to know all the secrets of the inner workings of PS:One?
Want to get certified, but don’t know how?
Want to doocritize, but haven’t even heard of do-ocracy?
Then this event is FOR YOU!
Free, open to all event – just show up at 4pm on Sunday the 23rd or 7pm on Wednesday the 26th and we’ll take care of you.

You’ll learn:

  • the one and only rule you need to remember at PS:One!
  • what mailing lists and IRC channels you should join
  • how to get discounts on classes, tee-shirts, stuff around town, and even monthly dues!
  • how to get certified on equipment
  • how to donate equipment to PS:One
  • how to create a class, event, group, meeting, or what have you
  • how to request a class, event, group, whatever
  • how to blog
  • the wiki.
  • do-ocracy and how to do-ocratize things

The basics:

  • Who: anyone who wants to learn more about PS:One and how it works
  • When: Thursday, July 18th 7pm until about 9pm.
  • Where: PS:One 1st floor lounge
  • Cost: free

Here are the class notes – please feel free to read beforehand (Note: these notes are nota good substitute for class attendance).

16

07 2013