Archive for the ‘Events’Category

ABS Smoothing – CNC Build Club

ABS Smoothing

Last night’s meeting was great.

  • A huge turn out of about 25-30 people
  • About 8 people certified on the laser by Colin
  • About 4 people certified on the vinyl cutter by me.  I started adding tips to the wiki page for the vinyl cutter because there was a little struggling to get good results.  I think it was due to not setting the orientation of the plot (worked for me)
  • I saw some certification on the LulzBot.  We need the linux computer for that fixed or replaced!
  • Ryan and Liz Certified on the CNC router and they cut a complete project on their own (cool little circle/star thing)
  • Acetone Smoothing….So it appears to make good prints look great and bad prints to worse.  You can’t polish a turd.
  • The Quantum Delta was slowly cranking out angry ducks and squirrels all night.

ABS Smoothing

ABS Smoothing

We did some experimenting with ABS Smoothing.  Donald J brought in most of the equipment which consisted of a heating pad, glass cookie jar and a little stand to put the parts on.   We put a small amount of acetone in the jar, then put 3D printed ABS parts on the stand.  When the acetone heats up it forms a cloud in the bottom of the jar, enveloping the ABS part.  Most of the acetone condenses back near the top of the jar.

It worked pretty well on finely layered parts.  It made some parts actually look little worse by highlighting flaws.   It took quite a while to heat up and could be optimized.  Donald is looking for volunteer ABS parts to practice with.

We have a temperature controller for it we can wire up.  It can only drive about 3amp @ 110V.  Does anyone have an SSR?  The mechanical relay probably won’t last long in this application.  The heater is probably 5-7 amps (guess)

IMG_20130530_210606

 

Sponsor Shout Out: Special thanks to Automation Technologies Inc for the loan of a CNC router

31

05 2013

Conductive Paint Workshop: Wednesday @ 7pm

Good news! Instructables have started sponsoring monthly build nights. And the more tutorials we make, the more supplies and equipment they’ll send us.

This month, we received a whole bunch of Bare Conductive Paint Pens. Tomorrow night at 7pm, we’ll spend a few hours playing around with them. Come experiment with the wonders and dangers of paper circuitry!

29

05 2013

Math Office Hours, this Sunday from 5 to 7

Express your inner mathnerd! Come join us for an evening of learning: algebra, calculus, word problems, finding x, and much, much more. We’re open to anyone looking to brush up on basic skills and to those who want to learn about more advanced topics. We can even stray into set theory, topology, and fourier analysis…. it’s all up to you!

If you’re feeling intimidated, don’t be. Any level of math experience is welcome. We will be happy to discuss any topic that falls under “math”. No question is too basic. Got a homework question? We can help! Trying to solve a tricky equation for a problem? We’ll think it through with you. Want to learn the basics of what math is all about? We’ve got you covered!

Math should be a common language to all, and we will be more than happy to help you take the first steps towards a lifelong appreciation of this beautiful subject!

Whos, Whens, and Wheres

  • Who – Anyone who wants to learn about math
  • Where – PS:One, second floor, in the electronics area
  • When – Sunday, May 26th, 5pm until 7pm
  • How much – Free

22

05 2013

PS:One Orientation Sunday 5/26 4-6pm

Longboard designed & fabricated by Bart Dring of buildlog.net

Longboard designed & fabricated by Bart Dring of buildlog.net

PS:One orientation (AKA: N00bs’ Paradise) 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 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: Sunday March 24th, 4 pm until about 6pm
  • 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).

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21

05 2013

CNC Build Club – ShapeOko Night

shapeoko

This Thursday at 7:00pm  Edward Ford will be hosting a ShapeOko night.  Edward can help you build, complete, setup and use the ShapeOko router.

He will also give a quick overview of the web based MakerCAM program.  MakerCAM can be used to create toolpaths for CNC routers.  Edward and Inventables are working to develop this program into a full featured CAM program.

MakerCAM

For those without ShapeOkos, we can talk about your CNC project or work with some of the digital fabrication equipment at PS:One like the laser cutter, CNC router or 3D printers.

Please RSVP via Meetup.com.

 

 

 

19

05 2013

Bitbeam Presentation – CNC Build Club

Bitbeam

This week we have a presentation by Jason Huggins (@hugs) on Bitbeam and the Tapster robot he built with it.

jason-huggins-with-tapster

When:

Thursday, May 9th @ 7:00pm, upstairs in the electronics area

Topic:

Jason will give an overview of Tapster, his open source, 3D printable, mobile app testing robot. In addition to explaining why creating a mobile testing robot is not the worst idea you’ve ever heard of, Jason will give an overview of Bitbeam, the open source building toy that he developed, which Tapster’s made out of. He’ll cover his making journey as he’s experimented with laser cutters, CNC mills, and 3D printers to make Bitbeam. For fun, the talk will also include live demos of Tapster playing Angry Birds.

About Jason:

Jason Huggins is CTO and co-founder of Sauce Labs, a software test infrastructure company, and is the original creator of Selenium, a popular open source web testing tool. In 2011, for an art project he was working on, Jason created Bitbeam – a 3D printable LEGO-Technic-compatible construction toy. Jason lives in Oak Park, Illinois.

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CNC Stuff

Following the presentation we will break away to work on various CNC projects. The ongoing group project continues to be the mid-sized CNC Router. The machine is now fully functional under Mach3 control. We can talk about the Mach3 setup and cut a few things.

YouTube Preview Image

06

05 2013

Intro to the Microsoft Kinect – Recap

Us in 3D

We had a great presentation by Jarvis Schultz on the Microsoft Kinect last night as part of the CNC Build Club.  Jarvis works with the Kinect as part of his PhD research in robotics at Northwestern University.  We had an overflow crowd of close to 30 participants.

Us on Kinect

The presentation was an introduction on how to get started with hacking the Kinect.  He described what is known about the internals and the data you can get out of it.  He talked about the preferred open source software tools and libraries.

Kinect Depth Field

He gave several live demos.  The pictures you see above are shots of how the Kinect saw the crowd at PS:One.  The still shots don’t do justice to the coolness of watching it live.  His presentation is in PDF format here.

kinect_1

kinect_crowd1

kinect_crowd2

 

 

 

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03

05 2013

Microsoft Kinect Presentation – CNC Build Club

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Thursday, May 2 @ 7:00pm

Presentation

This week we have a presentation from Jarvis Schultz on using the Microsoft Kinect motion sensor input device and other related devices.  He is going to give an overview on how they work, what kind of data they can produce, what software is needed to interact with them, and what you can do with the data once you have it.  He will include some live demos of what the data looks like, and what you can do with it.

Jarvis is a fourth-year PhD student in Mechanical Engineering working on robotics at Northwestern University.  He is part of the Neuroscience and Robotics Laboratory, and he has been working with the Kinect since it was first available, and it has become an integral part of his PhD research.  Further information is on his research webpage in case you are interested http://nxr.northwestern.edu/people/jarvis-schultz.

Thanks to Steve Finkelman for arranging this.

CNC Router

Starting Pile Of CNC Parts

Following the presentation and discussion we are going to continue with the CNC Router project. We are going to add the limit switches for the X,Y and Z axes. Limit switches can protect your machine from over travel, but also provide an accurate and repeatable home position.

mach3-main-screen

We are also going to setup Mach3 as the machine controller. We will try to do this while hooked up to the projector, so everyone can participate in the process and learn how to do it. Mach3 is a professional level commercial controller and is a huge step up from the typical DIY solutions, like GRBL.

linuxcnc_logo

After a few projects with Mach3 we will probably also install EMC2 which is an open source, Linux based alternative to Mach3.

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29

04 2013

Last Night’s CNC Build Club

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We had a great meeting last night.  We had over a dozen people working together to wire up a CNC control box.  At one point we had three soldering irons going at the same time.  Here is the pile of parts we started with.

Starting Pile Of CNC Parts

 

Here are some people wiring the box.  A really nice job was done using wire ferruls wherever we could.  How many hands can fit in that little box?

CNC Team Work

Here is the nearly completed box.

Box Almost Done

 

Thanks to Chris, Matt, Aeva, Patrick, Donald, Steve, Jason & Alex, Cat, John, Will, Gabe, Norm, Allen and Colin.  Next week we will be testing the motors, adding limit switches and configuring the software.

We will start with Mach3, then switch to EMC2 when we find a dedicated PC for that.  Chris and John I think mentioned they do time at Free Geek.  I am sure they could find a little PC.

Special thanks to Automation Technologies Inc for giving/lending all the parts.

- Bart

 

 

26

04 2013

CNC Build Club

Automation Technologies 3D Gantry

The CNC Build Club meets just about every Thursday at 7:00pm.  This is a weekly meeting of Chicago area people passionate about designing, building and learning how to use digital fabrication equipment.  Non members are welcome .  Each meeting starts with a round robin introduction followed by a little discussion and often a presentation or training session.  We also often have a group project going on.

This week we are going to start putting together a small CNC milling machine.  The machine was lent to us by Automation Technologies Inc.  Right now the machine is just the mechanical platform.  We need to add the motor controls, limits switches and setup some software.  The goal is to create an easy to use work center that we will do some projects on.  The plan is to sell the machine at a discount to someone in the group when we are finished. If you don’t know anything about CNC, don’t worry, you can still help.  The goal is to teach, learn and use.

KL4530S

We have a meetup group you can follow for upcoming events

We have a Google Group too.

 

25

04 2013