sudo-discuss

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7173 discussions

Fwd: [sudo-info] Hacker/Maker Happy Hour - February 13th - Downtown Oakland

by Yardena Cohen

---------- Forwarded message ---------- From: Rachel Sadd <crafty.avenger(a)acemonstertoys.org> Date: Thu, Jan 25, 2018 at 9:13 AM Subject: [sudo-info] Hacker/Maker Happy Hour - February 13th - Downtown Oakland To: info(a)sudoroom.org Hello there, Ace Monster Toys Makerspace would like to cordially invite the folks at Sudoroom to the Hacker/Maker Happy Hour! Date: Tuesday, February 13, 2018 Time: 6:00PM to 8:00PM Place: Make Westing - 1741 Telegraph Ave, Oakland, CA 94612 https://www.facebook.com/events/1982934165279027/ AMT is seeking to foster stronger community both within our org and in the greater Bay Area community. As such we are calling a happy hour once a month in the east bay for all folks in the community who are into making, hacking, inventing and so on. Last months kick-off happy hour was a lot of fun. Check out the pics! ~Team AMT Crafty Rachel President, COO acemonstertoys.org meetup.com/Ace-Monster-Toys facebook.com/acemonstertoys Hacker Happy Hour • For makers, hacker, inventors, artists and the like in the greater bay area • 2nd Tuesdays

6 years, 8 months

Invoice 1303 from Omni Commons

by Omni Commons

Dear Sudo Room, Here's your invoice! We appreciate your prompt payment. Thank you for stewarding the commons. Love and solidarity, Omni Commons ------------------------ Pledge Summary -------------------------- Invoice # : 1303 Invoice Date: 02/01/2018 Due Date: 02/25/2018 Terms: Net 25 Amount Due: $2,000.00 The complete version has been provided as an attachment to this email. ---------------------------------------------------------------------

6 years, 8 months

SUDO book scanner lighting parts and files

by jacques revera

---------- Forwarded message ---------- From: Jonathon Duerig <duerig(a)tenrec.builders> Date: Wed, Jan 24, 2018 at 9:01 AM Subject: Re: Oakland SUDO room purchase quoted lighting parts To: jacques revera <jacquesrevera(a)gmail.com> Sorry for not responding sooner, I'll get you the files in DXF format today. I've attached them in DWG format to this email (since that is what I had available without conversion). ... Some notes about the design of the light box: You will need two of each item I sent design files for. The scale of these files is 1 unit = 1 mm. If you want to modify the design to better suit your scanner, you will need to reduce the distance between the lighting module front and lighting module back. This affects the lighting module sides, the large baffles, and the LED base plate. The lighting module sides should be exactly the same, but reduced in width by whatever is necessary to make it sit on the top of your scanner. Similarly, the size of the large baffle needs to be reduced by the same amount along its longest dimension. The LED base plate is made from FR4. I included it in the shipment to you. The reason it is FR4 is that it is meant to hold the lights which means that any heat generated from the lights needs to be accounted for. Something that is flammable or something that might distort and change shape when it gets warm are bad choices. FR4 is great because it is both flame and heat resistant. The plate I sent will be too long. You could deal with this in two ways. One way would be to remove the slots on top of the front/back plates and have it just rest with a bit of overhang. Another way would be to modify the plate so that it fits. You can cut FR4 with a saw (be careful because it is brittle). You can also drill FR4. So you could cut it in half, then drill a couple of holes to bolt it back together as a shorter length. If you do this, be very careful of the dust generated. FR4 is fiberglass-reinforced. And fiberglass dust is dangerous. Or if you have access to a waterjet, you could buy a piece of FR4 pretty cheaply and use the waterjet to cut out a modified piece. If you want to do this, let me know and I can send you the design file for it. You can't cut FR4 with a laser AFAIK (heat resistant, flame resistant). And it would be a bad idea to use a CNC router to cut it out (fiberglass dust is very bad for you). This is why we pay a shop to cut out the LED base plates in batches with a waterjet. But it is much more expensive to cut a one-off piece of a different design. Or if you don't want to modify the design of the lighting module, the alternative is to add on to the scanner some pieces that would allow you to rest the unmodified lighting module on top. I'm not sure how much bigger the lighting module is. But it could be a 2x4 on each side would provide enough extra width for example. I haven't had much experience with the older hackerspace scanners, so I don't know for sure. --- Jonathon Duerig Tenrec Builders LLC On Mon, Jan 22, 2018, at 1:05 PM, jacques revera wrote: DXF is probably what we need. Please send a DXF file. But if you can include the SVG also... This is not my ken and I have not heard back yet. thanks! On Thu, Jan 18, 2018 at 12:01 PM, Jonathon Duerig <duerig(a)tenrec.builders> wrote: I've received your payment. I'll ship to: Don Spark 4130 mera street <https://maps.google.com/?q=4130+mera+street+%0D+Oakland,+CA+94601&entry=gma…> Oakland, CA 94601 <https://maps.google.com/?q=4130+mera+street+%0D+Oakland,+CA+94601&entry=gma…> When it is on its way, I'll send along tracking information. And I'm happy to send you design files for the plates as soon as I hear back what format you want them in. --- Jonathon Duerig Tenrec Builders LLC On Wed, Jan 17, 2018, at 2:36 PM, Jonathon Duerig wrote: Hi. You can send a Paypal payment to our orders(a)tenrec.builders email address. Or I can make a custom item in the store for you to purchase. It is up to you which way you want to go. I'll send along the design files for the main panels as well and you can then modify them to suit your size or use them as-is and add your own cross beams or framework to rest it on. Do you have a preferred format (DXF, SVG, something else)? --- Jonathon Duerig Tenrec Builders LLC On Wed, Jan 17, 2018, at 1:23 PM, jacques revera wrote: Hi Jonathan, I really appreciate your help and your work on diybookscanner.org where I am trying to learn all the fundamentals to defeat my reading disability. How do we do this with a credit card? Below is a link is to your quote. I want to purchase the option (2) for $150 for use at Oakland's SUDO room on the 'hackerspace' scanner which came from Noisebridge in San Fran. Email, text or call me at 415-724-1479 <(415)%20724-1479>, Jacques https://forum.diybookscanner.org/ucp.php?i=pm&mode=view&f=0&p=3723 Jonathon wrote: (2) You could get the lighting module hardware from me and cut out your own plates for the module itself. I'll provide you with DXF or SVG files. The plates could be cut out of hardboard on a laser cutter (I am pretty sure they had a laser cutter at Noisebridge when I visited there) and then you spray paint them black. And you could cut them out as-is, or tweak the design to better fit your scanner before cutting them out. I'd be happy to give you advice as far as that is concerned. What I would send you includes all the electrical stuff, fixtures, LED lights, hardware, AC adapter, the LED base plate made from FR-4, lenses, etc. So you would get everything but the plates themselves. The price would be $150 and shipping cost to California is included in that price.

6 years, 8 months

Payment confirmation: Invoice 1303 (Omni Commons)

by QuickBooks Payments

6 years, 8 months

I can record and upload video of "Build Your Own Internet Workshop & Panel"

by jacques revera

This event at the Omni saturday night is important. I can record and upload video of "Build Your Own Internet Workshop & Panel" to your channel, social media or my channel. I am a semi-professional videographer and I get good audio (which is the most important thing at panel and discussion events) - especially if your sound is good and I take an audio feed from your board. You can see some of my more recent event and protest videos here: my channel https://www.youtube.com/channel/UCt7o6FVBWMi5Qtqk39t4AFA/videos my videos on the Revolution Books channel https://www.youtube.com/user/revbooks Jacques

6 years, 8 months

Arduino classes

by Noah Glaser

Hey sudo room people, I am recent member of sudo room. I wanted to see who would be interested in free Arduino classes for beginner programmers. I have the first class online right now. http://oaklandcodeschool.org/arduino-blockly/lesson-1-output/ I am going to be contacting GCEA about teaching for them and using the computers they have provided for the Omni. Let me know what you think. :) Thank you Noah

6 years, 8 months

Fwd: Biology/Microscope/Programming/Art/Education Hack-A-Thon

by Cere Davis

Hey Folks. See thread below. We have a cool proposal to do a fun cross-disciplinary activity in trying to build DIY microscopes with CCL and Sudo from a talented maker guy from San Jose. Would Sudo be willing to collaborate on this? I, as a sudo member, certainly would. -Cere ---------- Forwarded message ---------- From: Patrik D'haeseleer <patrikd(a)gmail.com> Date: Mon, Jan 22, 2018 at 5:56 PM Subject: Re: Biology/Microscope/Programming/Art/Education Hack-A-Thon To: Thomas Zimmerman <tzim(a)us.ibm.com> Cc: info(a)counterculturelabs.org, info(a)sudoroom.org, CCL board < cultlabsboard(a)googlegroups.com> Hi Tom - sounds like a great idea! We do need to cap it at 50 and get Sudo involved as well, since that is our max occupancy for the space that we share with them. I'm not sure info@sudoroom is the best email to contact them though - any Sudo members following this conversation? Patrik On Jan 22, 2018 3:50 PM, "Thomas Zimmerman" <tzim(a)us.ibm.com> wrote: Hi Sudo Room and Counter Culture Labs; I'm organizing a biology/microscope/programming/art/education Hack-A-Thon as part of my work in the Center For Cellular Construction (a consortium UCSF, SFSU, UC Berkeley, Stanford, The Exploratorium and IBM Research, see https://ccc.ucsf.edu/). *Is this something we could do at Sudo Room and/or Counter Culture Labs? *We are planning it for a *Saturday or Sunday in mid-April for about 50 participants, free *with registration for crowd control and to get a good mix of people and backgrounds. We want to attract the same kind of mix of people that go to Sudo and Counter Culture Labs; scientists, tinkerers, DIYs, programmers, biotech professionals, hackers, artists, teachers, educators, and citizen scientists. We will provide about 15 microscopes, 3 different kinds (5 of each); a $20 USB optical with zoom and a wooden adjustable stand, a $10 laser projection microscope and a $50 novel lensless stereo microscope based on the Raspberry Pi (a microscope with it's own OS that runs Python and OpenCV!!!) (https://www.youtube.com/watch?v=SzNjJ8_zT-A and https://www.youtube.com/watch?v=xm750WtlFN0), parts to build and modify these microscopes, some example Python image processing code, links to free imaging tools (e.g. Fiji ImageJ https://fiji.sc/), some hacking materials (cardboard, hot glue, wood), slimy pond water (full of all kinds of tiny fascinating creatures), and samples of plankton from https://www.carolina.com/ Participants are encouraged to bring their own slimy water and microscopic creatures (no pathogens please, my motto is "if you can't drink it, don't bring it" ;). The general goal is for participants to team up and produce something (physical device, code, art work, movie, sound/music, slide show, etc) to help make biology accessible to people using microscopes, code media (art, music, sound, video, image, internet, multimedia), or whatever participants can think of. We are especially interested in plankton; to raise awareness of the complexity, beauty, variety and vital role they play in our well being (they provide 2/3 of our oxygen, are the largest sequester of carbon from the atmosphere, and the baby food for practically every species of fish. However, these are suggestions, as hackers will probably have their own view of what they want to do, which is the point of holding a Hack-a-Thon, to encourage creativity and experimentation! FYI I'm a hacker/inventor myself and spend a lot of time going to schools to turn kids onto STEAM (https://makezine.com/2009/06/ 23/make-contributer-thomas-zimmerman-h/ ) Regards, Tom Thomas G. Zimmerman Research Staff Member IBM Research-Almaden 650 Harry Road, San Jose CA 95120 <https://maps.google.com/?q=650+Harry+Road,+San+Jose+CA+95120&entry=gmail&so…> (voice) 408- 927-1836 <(408)%20927-1836> (fax) 408-927-2100 <(408)%20927-2100> (IBM tie) 457-1836 (email) tzim(a)us.ibm.com home page researcher.ibm.com/researcher/view.php?person=us-tzim <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> Virus-free. www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> <#m_-4622254004901961289_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> -- You received this message because you are subscribed to the Google Groups "CCult Lab's Board" group. To unsubscribe from this group and stop receiving emails from it, send an email to CultLabsBoard+unsubscribe(a)googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- *Cere Davis* Science-Art | Kinetic Sculpture CereDavis.com @ceremona <http://Twitter.com/Ceremona>

6 years, 8 months

Studio/Workshop/Office available in West Berkeley Feb 1st (fwd)

by Jake

---------- Forwarded message ---------- Date: Mon, 22 Jan 2018 15:21:40 -0800 From: "(-pEEf-)" <peef(a)mindfart.com> Subject: Studio/Workshop/Office available in West Berkeley Feb 1st Excellent location in East Bay and part of an awesome collective. Across the street from OSH Hardware and Berkeley Bowl West, and on the same block as Discount Fabrics as well as The Shipyard and Urban Ore, as well as easy no-permit street parking and access from I-80. Safe industrial West Berkeley neighborhood right on the border with Emeryville and Oakland. Ashby Bart station 1 mile away. 18' x 15' in a private quiet location on the second floor with lockable door. Has openable window overlooking Ashby for fresh air and good natural light on the other side with 3 windows. $490 / month including utilities (reasonable electrical use, internet, trash). Most of the furnishings shown are not included and will be removed at end of month. Ideal uses are art, electronics, office, etc. No heavy fabrication please, but light is ok. We want to avoid anything creating lots of noise or fumes so we can maintain our great peaceful environment. Optional access to large open 2-story area for occasional projects with loading dock and forklift. We have blazing-fast gigabit internet with symmetrical pipes, so can be a good choice for big data, such as video production. 24 hour access permitted, but must respect nighttime quiet. Living in this space definitely not permitted. Available for move in on February 1st, month-to-month. Contact me if you'd like to come see the space. First come first served, it will go fast! http://ingineerix.com/pic/?xian-h1 http://ingineerix.com/pic/?xian-h2 http://ingineerix.com/pic/?xian-h3 http://ingineerix.com/pic/?xian-h4

6 years, 8 months

DXF or SVG or? for scanner light fixture mount cutting for book scanner

by jacques revera

I just purchased two refurbished 20 megapixel Canon PowerShot ELPH 160 and the archivist lighting assembly which includes LED bulbs, sockets, lenses, wiring and power adapter. Jonathon will send us the design files for the sockets mounting plate soon as I tell him what format we need to cut it at the SUDO room: DXF or SVG or something else? ~ http://diybookscanner.org/archivist/index6ea9.html?page_id=267 This is the page describing the plate. It would be convenient if the SUDO room has some FR4 but as long as the material is opaque, heat proof and can be painted black, should be no problem. This plate will sit at the top center of the scanner. The plate also serves to block light from entering from the top direction. Since, we need to attach something to raise the lights higher than the original hackerspace design, we should not cut this out yet. It does not need to be the same shape as the archivist plate as long as the socket mounting holes are the same. Jonathon wrote last week: ."..you can move the lights further away from the platen. Because of various design constraints, Daniel put the lights closer to the platen than is ideal on that model. For later models (like Daniel's Archivist design), the lights were been moved further away to reduce glare and hot spots. You want to reproduce this in some way. So just build a simple frame you can set on top of the scanner to lift the lights. There is a mathematical way to find the minimum distance, but it might be easiest just to do it empirically, pulling the lights away and taking sample photos until you see that there is no reflected light source." You can see how this the lights are put together on the archivist about halfway down this page http://diybookscanner.org/archivist/index9bef.html?page_id=54 Jacques

6 years, 8 months

Re: [sudo-discuss] vending machine homing switch mystery solved

by Jake

bump! does anyone want to help get one or both vending machines working? This would be a great way to vend arduinos, ESP8266's, candy bars, and whatever else we want to sell to sudoers and others. Much of the work has already been done. -jake ---------- Forwarded message ---------- > Date: Sat, 9 Apr 2016 17:42:06 -0500 > From: jake(a)spaz.org > Subject: [sudo-discuss] vending machine homing switch mystery solved > > so i've been working on the black sudoroom vending machine (vending1): > > https://sudoroom.org/wiki/hack-o-mat > > which had previously been hacked by students at UC Berkeley (i think) > > I believe it's a Snacktron like Emma and Ed's machine. > (unlike our brown vending machine which is a snackshop II) > pictures of their machine can be seen here: > http://spaz.org/~jake/pix/vend/ > > they had ripped out the original control unit, and wired it up with a > bunch of reed relays and an arduino. The motors of the vending machine > are wired as a grid of rows and columns, so the controller needs to be > able to enable a single row and column in order to power one product > motor. > > But it also needs to be able to detect when the product motor has rotated > a full turn, and is back at the "home" position where it needs to stop. > There's a "home" sensor on the back of the motor, but the way it's wired > was a mystery for a while. Here's some pictures of the homing circuit: > > http://spaz.org/~jake/pix/vend/IMG_20160401_015211.jpg > http://spaz.org/~jake/pix/vend/IMG_20160401_015700.jpg > > as you can see, the only difference between the button being pressed or > not pressed, is that the 420nF capacitor is in parallel with the motor or > not. Since the whole thing is in series with a diode (to protect against > trying to turn a motor backwards) we were stumped as to how to detect > whether a motor was homed or not. > > Thanks to Zach who donated some test equipment including this awesome > signal generator (along with a nice power supply and bench multimeter): > http://imgur.com/LTSFfOe > > I was able to connect an AC waveform in series with a 12VDC supply to one > of the motors, and figure out how to detect whether the home switch is > closed or not. Basically, you make a 31KHz (or similar frequency) > squarewave in series with the power supply, and watch the current through > the motor. If the button is open and the capacitor is not in-circuit, the > motor's inductance absorbs the AC and the current draw is relatively > smooth. But when the motor arrives at the home position (when you need to > stop delivering product!) the capacitor gets switched in, and now you'll > see a lot of the AC on the current path of the system. > > Here is a video showing the voltage across a 22-ohm series resistor while > the motor is rotating with 12VDC: > > https://www.youtube.com/watch?v=xHIGDw5HRCg > > apparently it takes that motor about 11 seconds to dispense a product and > finish returning to home position, assuming the product weighs nothing. > > by the way, you'll notice that i'm using the old analog oscilloscope. > Unfortunately the LeCroy 9510 has started crashing, basically > bluescreening. It probably needs to be opened up and cleaned, as it got > wet after a fire before it was donated to sudoroom. > > Or maybe someone wants to donate a nicer oscilloscope to sudoroom? > > anyway, now I know how to detect the motor homing signal, and I just need > to wire up this machine to its arduino to detect the signal and dispense > product more accurately. If anyone wants to help, please let me know. > > by the way, if you are wondering how the UC students detected when the > motors were finished dispensing product, the answer is absurd: > > they put a laser beam across the path where product would fall when > dispensed, and they watched for the laser beam to be interrupted. > > did it work? I don't know. probably the semester ended and they got > their grade and moved on, and then they donated the vending machine to us. > > -jake > _______________________________________________ > sudo-discuss mailing list > sudo-discuss(a)lists.sudoroom.org > https://sudoroom.org/lists/listinfo/sudo-discuss

6 years, 8 months

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