501c3 Status Party – Thurs. April 28th

The cake, decorated by Shelly Loke. Before

This is the red velvet cake, decorated by Shelly L. She did a great job. Thanks to Everett for donating the chocolate that appears on every event cake so far.

 

 

The "original" song for PS:One.

The “original” song for PS:One. We actually sang this song before cutting the cake.

The table of tasty treats.

The table of tasty treats. Sorry for the blurry picture, the sugar content was making the camera jitter.

The cutting of the cake.

The cutting of the cake. Shelly did the honors.

After

Two hours later and the cake is almost gone.

We all gathered in the lounge to celebrate the hard work of many PS:1 boards and members. It seemed like a fitting end to getting 501c3 status so I planned a party. I chose red velvet cake because our color, as far as I know, is red. I could be wrong, it could have been purple and the blue ran away. Lol. Party guests brought doughnuts, plenty of doughnuts, pizza pringles, and kit kats. The cupcakes looked so fancy. We even had ice cream to go with the cake. With the help of Andy L. we sang our 501c3 song and it was a mouthful. Try it yourself. It was a very good evening for me and I hope you. To all who shared in the treats after the party. Salute!

02

05 2016

Power Racing Series Meeting

This Saturday, April 30th, we will meet at 9pm in the shop to discuss our entry into the Power Racing Series. Its a friendly competition between hackerspaces where we modify ride on kids toys and race them at Maker Faires.  We have a car that works great but is in need of TLC. We have a race in San Mateo in a few weeks time and need to get it ready.  We will be discussing what needs to be done for that race and races to come. If you have experience with welding, electronics, fabrication, you are more than welcome. If you don’t have experience, come by and get some.  Read the rest of this entry →

29

04 2016

NERP Tonite! Raspberry Pi with 3D Resin Printing, Big and Small

A few days ago, Andrew arranged the donation  a ZBuilder ulTra 3d resin printer to PS:One. Since Andrew has  been working on small a table-top 3-d resin printer using the Raspberry Pi and nanoDLP, it seemed natural to try the nanoDLP controller on the big machine. 3dprinter-01
3dprinter-00

 

 

As far as we know this retrofit is a new use case for the RPi. 3dprinter-04

I found the build platform motor leads and Andrew connected them to the nanoDLP system.

3dprinter-02

With a bit of fiddling, the platform started to move as expected. Meanwhile Andrew had a good start on getting the projector to run, and before we were really ready, the essential system components seemed to work.  (In the pic below, you can see the the Raspberry Pi logo displaying on the build platform.)

3dprinter-03

It’s already clear that there are lots of details that need addressing, but those problems seem surmountable.

———————-

Andrew Camardella camardea at gmail) is a contract industrial designer and digital fabricator. He works with companies and individuals conceptualizing, creating, and managing new products, taking ideas from sketch to prototype to finished product. He is an expert in the application of 3D processes and technologies to traditional design methods.

NERP is not exclusively Raspberry Pi, the small computer and embedded systems interest group at Pumping Station:One in Chicago. NERP meets every other Monday at 7pm at Pumping Station:One, 3519 N. Elston Ave. in Chicago. Find NERP and Pumping Station:One at

NERP – Not Exclusively Raspberry Pi

Chicago, IL
456 members

NERP is Not Exclusively Raspberry Pi, the small computer and embedded systems interest group at Pumping Station One in Chicago. (Chicago’s oldest and finest hackerspace.) NERP…

Next Meetup

NERP Tonite! Raspberry Pi with 3D Resin Printing, Big and Sm…

Monday, Apr 25, 2016, 7:00 PM
3 Attending

Check out this Meetup Group →

and
http://pumpingstationone.org/

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, Pumping Station One

25

04 2016

NERP Tonite! Report from the 2016 Embedded Linux Conference and IoT Summit

NERP is not exclusively Raspberry Pi, the small computer and embedded systems interest group at Pumping Station:One in Chicago. NERP meets every other Monday at 7pm at Pumping Station:One, 3519 N. Elston Ave. in Chicago.

April 4th through 6th, PS:One’s Drew Fustini attended the Open Internet of Things and Embedded Linux Conference (OpenIoT & ELC 2016) in San Diego. Since embedded Linux powers pretty much all the OS-capable single board computers and computer modules that we see at NERP, we’re eager to hear Drew’s insights on how current advancements and innovation in embedded Linux and hardware will help us at NERP make cool stuff that nobody’s thought of yet.

http://events.linuxfoundation.org/events/embedded-linux-conference
http://openiotelc2016.sched.org/

Find NERP and Pumping Station:One at
http://www.meetup.com/NERP-Not-Exclusively-Raspberry-Pi/
and
http://pumpingstationone.org/
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, Pumping Station One, IoT

11

04 2016

Creative Celebrations at the 7th Birthday Party!

Cake-is-not-a-lie-01

WP-White-Bar-550x10

People trickled in through the evening and participated in events for our 7th Birthday Party last weekend! Grilled meats, snacks and vegan pizza were served up to the mingling masses. Lockpicking with TOOOL.us went down, a group mural went up, games were played, dyes went into fabric and a familiar face returned to our space…

Read the rest of this entry →

05

04 2016

Passap Knitting Machine Set Up

IMG_0291

The Passap is officially working!
(Huzzah!)

Last night we tested settings that work with the fingering weight Tamm 3ply coned yarn. And we figured out how to knit from cones (no cake winding required)!

Setting up the machine:

Beds needs to be at “full pitch”. This means the combs of the two beds are lined up opposite each other. To do that, turn the crank handle at the lower left of the machine so the handle is “up”, at the top of its rotation.

Park the carriage (“Lock” in Passap lingo) on the right. For both locks: set the tension dial to 3. There’s a large lever marked N-X. Flip it to N (“normal”). Insert the orange strippers.

IMG_0293

Read the rest of this entry →

23

02 2016

CNC Beer Part 3 – Fusion 360 and Waterjet Overkill

Waterjet cut box and panel insert

Waterjet cut box and panel insert

[Go back to Part 2….]

I had a plan for how to blog about this project, but I’m going to step out of order and talk about the latest development since it pertains to the last Fusion 360 Meetup. So to catch up in a hurry: I’ve already constructed a control box containing an Arduino Mega 2560 and a Raspberry Pi, power supplies, relays, etc. all mounted on DIN rails. This is the “brains” of the system, and the Pi runs an open source control framework called EPICS. The control box sits on a separate stand on wheels that I welded. In keeping with the “Beer Church” theme, I suppose this is the “Beer Pulpit”.

Beer control box and stand

Beer control box and stand

I realized early on that the control box was out of room. I want this brewing system to be modular so that I can attach different equipment and reconfigure everything via software. To that end, each device needs to connect to the control box with its own sturdy, detachable connector. The original BrewTroller project (which isn’t online anymore) made use of XLR jacks. These are ideal. Nearly every device I’m interfacing with uses 3 or, in some cases, 2 wires. The OneWire serial bus, which is used for measuring temperatures, uses a 3 pin M12 connector; these are chained together using splitters. A few use cases need more than 3 wires: multiple pressure transducers on one board (used for fluid level sensors) and stepper motor drivers (used for controlling gas needle valves). For these, I’m using 8 pin mic connectors. But I don’t have enough panel space on the control box for all of these jacks, especially now that I’m considering adding a small touch screen. Nor do I have room inside the control box to mount a 120 V to 24 V transformer; 24 VAC is a HVAC standard, and the propane burner valves need it.

Read the rest of this entry →

21

02 2016

Event: Confectionery Combat! Chocolate VS Shelly and Gerald

shelly-and-gerald-vs-chocolate-smaller

 

What:
Confectionery Combat! Chocolate VS Shelly and Gerald:

When:
Friday February 12, 6:30-8:30 pm

 

We will start with a discussion on the evil ways of this culinary foe and tactics to successfully wage war against it.

We will be making truffles, roasting nuts, coating lots of things with chocolate, and “practicing” our feeble double boiler tempering skills.  Practice is the word! Just as in war there is no guarantee of success but at least in this we will have chocolate.

This event is open to PS:One members and their guests who want to watch, sample, and participate as the space allows. (There will probably be a cap at 10 people in that small kitchen) If you know you are coming give us a holler on the member group here so we can prepare excess supplies and plan our battle strategy.  The cost is free but donations to fund our efforts will encourage more such campaigns.

06

02 2016

Group Project: Making Toolboxes

20160121_232528Last Monday, NegativeK got the funny idea that he wanted to do a project to practice his sheetmetal work. 20ga mild steel sheet was ordered, and we collected in cold metals to make some very expensive tool trays.

 

Making a project like this, is a bit of a puzzle. Before we get to the tough stuff, we first do layout. 20160121_213737 Here’s Toba wishing we had a printer that would do the layout for him.

Once we all finished drawing lines all over our sheetmetal we had to come up with how we were going to make all the cuts.
20160121_201027That’s an 8″ shear. It makes cutting sheemetal a magical experience. It’s quiet, smooth, and pretty easy to control. The only thing to remember, is it’s like working with the tip of a pair of scissors. It cuts a long way in front of where you “see” it cutting, and if you reach the end of the cut, it makes a punch mark. Just… it’s steel instead of paper.

That does mean making inside cuts is a bit of a challenge. We all had unique approaches to dealing with the inside corners. Now that we have three and a half toolboxes, I think that the “best” method, would have been drilling holes at each inside corner. Instead, I twisted and wiggled out the metal, and used a file to clean up the corner.
20160121_213731Here’s my tool tray blank. All of the fold lines are marked, and it’s sitting on top of my tool tray handle. I didn’t get good shots of how we did the handles. They were definitely easier than the body of the tool tray. To go from that flat sheet of metal, to a three dimensional tool tray, requires a sheet metal brake.

20160121_221810Here’s Toba setting up to do his bends. NegativeK found that our brake won’t do seams well. As if that would stop us. We all ended up using a hammer to finish those folds.

Those folds were simple in description, but not so simple in practice. None of ours look machine made. But they do hide the sharp edges, and make the tool trays safe to use.
20160121_231527The handles, and sides were affixed to each other with the space’s spot welder.

Spot welding is a very quick method for joining metal. I’m glad we’ve got that tool in the space. I had suggested that we might rivet the parts together, but between drilling and attempting to rivet, we’d have spent two or three times longer affixing the parts together.

The welds also have the air of “professionally made.” Or at least “not in a garage” made.

20160121_232535At the end of the night, Here’s what we had. TachoKnight, Toba, NegativeK, and My boxes.
20160121_232418In the future, we won’t put the short guy furthest from the camera.

 

22

01 2016

NERP Tonite! systemd with Bonnie King

NERP is not exclusively Raspberry Pi, the small computer and embedded systems interest group at Pumping Station:One in Chicago. NERP meets every other Monday at 7pm at Pumping Station:One, 3519 N. Elston Ave. in Chicago.

Bonnie King is a Linux Administrator at Fermilab and works on the Scientific Linux distribution. At Nerp tonight, Bonnie will give us a tour of systemd. If you work with embedded linux, this is must have, must know material.

The architecture of systemd as it is used by Tizen. Several components, including telephony, bootmode, dlog and tizen service, are from Tizen and are not components of systemd

The architecture of systemd as it is used by Tizen. Several components, including telephony, bootmode, dlog and tizen service, are from Tizen and are not components of systemd

“Linux” is the kernel of an operating system. You generally can’t see it, feel it or touch it directly, but you know it’s there by what it does. At boot, the kernel launches “init”, the process with Process ID number 1. Everything else is started by by init. On my computer, init, PID 1 is /lib/systemd/systemd. systemd is “new”, sort of. It’s been around for several years, but has recently taken over lots of core system functions that have been provided by some very traditional Unix-based tools and utilities. When I look under the hood of my Ubuntu system, it looks very different than it did a couple of years ago. What goes for the desktop goes for embedded, too.

from http://freedesktop.org/wiki/Software/systemd/
“systemd is a suite of basic building blocks for a Linux system. It provides a system and service manager that runs as PID 1 and starts the rest of the system. systemd provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux control groups, supports snapshotting and restoring of the system state, maintains mount and automount points and implements an elaborate transactional dependency-based service control logic. systemd supports SysV and LSB init scripts and works as a replacement for sysvinit. Other parts include a logging daemon, utilities to control basic system configuration like the hostname, date, locale, maintain a list of logged-in users and running containers and virtual machines, system accounts, runtime directories and settings, and daemons to manage simple network configuration, network time synchronization, log forwarding, and name resolution.”

A number of influential people in the Linux community have strong philosophical and practical differences with the design of systemd and the way in which it’s become ubiquitous across distros. Nevertheless, mainstream Linux continues to move toward systemd and away from System V and BSD init. systemd is installed by default in Ububntu since ver 15.04. (April 2015). If you work with Linux at a low level, for instance in embedded applications, a knowledge of systemd is a must have.

Find NERP and Pumping Station:One at

NERP – Not Exclusively Raspberry Pi

Chicago, IL
399 members

NERP is Not Exclusively Raspberry Pi, the small computer and embedded systems interest group at Pumping Station One in Chicago. (Chicago’s oldest and finest hackerspace.) NERP…

Next Meetup

Bring questions, demos, personal research, etc. to share.

Monday, Jan 18, 2016, 7:00 PM
10 Attending

Check out this Meetup Group →

and
http://pumpingstationone.org/

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, Linux,
raspberry pi, hackerspace, Beagle Bone, Pumping Station One

18

01 2016