[Noisebridge-discuss] Bench Supply and Laser Cutter?

Zach R organicunity at hotmail.com
Wed May 6 08:40:37 UTC 2015


Adam,
  Are you free at all Thursday evening? It would be a perfect time for me to learn about the laser cutter and do the repair!  Let me know :)  also yes, please come by and enjoy the workspace of noisebridge!  no membership required...

-Zach

From: maltman23 at hotmail.com
To: adam at aperture.systems; noisebridge-discuss at lists.noisebridge.net; organic_unity at yahoo.com
Date: Tue, 5 May 2015 03:35:16 -0700
Subject: Re: [Noisebridge-discuss] Bench Supply and Laser Cutter?




Hey Adam,
 
You do not need to be a member of Noisebridge to come and do cool stuff there.  
 
Noisebridge is always open to anyone to come by and benefit and contribute to the community.  We have lots of classes and workshops, tools, internet, supplies -- please come by and make use of Noisebridge -- we are a community resource.

Best,
Mitch.

 
From: adam at aperture.systems
Date: Sun, 3 May 2015 17:32:58 -0400
To: noisebridge-discuss at lists.noisebridge.net; organic_unity at yahoo.com
Subject: Re: [Noisebridge-discuss] Bench Supply and Laser Cutter?

Hah, well I'll be back in the bay later this week. I'm not actually a member of NB, but if fixing stuff is required, that's my thing :-)
Cheers, -Adam---
Aperture Systems: Redefining Radiography -  http://aperture.systems/
http://adammunich.com/ - Cell: +1-650-452-0554

Be • knowledgeable •  social • patient • fearless • compassionate • fun • humble • forgiving. 

Be a leader

On Sat, May 2, 2015 at 3:25 AM, Zach <organic_unity at yahoo.com> wrote:
Damn, Adam it sounds like it would be GREAT to have you around for calibrating.  Any chance you could drop by NB sometime when I'm there and spread the knowledge?



Also, about the tools - there are ZERO needle nose pliers in the red bin.  I am very familiar with the red bins.  Woodshop yielded zilch too.  I mean, there are a LOT of tools missing.  just saying.



-Zach

--------------------------------------------

On Fri, 5/1/15, Adam Munich <adam at aperture.systems> wrote:



 Subject: Re: [Noisebridge-discuss] Bench Supply and Laser Cutter?

 To: "Torrie Fischer" <tdfischer at hackerbots.net>

 Cc: "Noisebridge" <noisebridge-discuss at lists.noisebridge.net>

 Date: Friday, May 1, 2015, 12:48 PM



 I have one

 of those full spectrum models ( its at Sudo room right

 now)  and it's not an incredibly complex machine. I

 would say that wiring up the laser tube would take only

 about 1 minute, the difficulty is aligning the laser there

 after adjusting all the mirrors.

 Last time I did this I used polycarbonate

 glasses ( which are opaque at that wavelength ) and a magnet

 over the safety switch sensor to make the machine think it

 wasnt open. I then held down the later test button and used

 a piece of cardboard to determine where the beam is and

 where it should go, and adjusted accordingly.

 If anybody wants to take a stab at it, doing it

 that way shouldn't take more than 30 minutes.

 On May 1, 2015 12:47 PM,

 "Torrie Fischer" <tdfischer at hackerbots.net>

 wrote:

 We've

 got a huge bin of screwdrivers in the dirty shop. Needle

 nose pliers



 tend to end up in the big red rolling toolbox.







 On Friday, May 01, 2015 01:07:06 AM Zach R wrote:



 > Thanks for info everyone.



 >



 >   That's great, I thought it was broken way

 worse.  I can bring my tools



 > over and look at it next week.  NOTE, we do not have

 ANY needle nose pliers



 > and the dozens of tools I donated last month (lots of

 screwdrivers and



 > such) were nowhere to be found on monday.  Makes doing

 these repairs really



 > difficult cause I have to bring my tools from

 home...just an fyi for



 > everyone to keep an eye on what we have.



 >



 > Do  you know more about the brass contact it uses? 

 Id be down to order



 > another on ebay rather than replicate / jerry rig

 something for such a nice



 > piece of equipment.



 >



 > -Zach



 >



 > Date: Thu, 30 Apr 2015 14:37:23 -0700



 > From: metatecque at gmail.com



 > To: tdfischer at hackerbots.net



 > CC: noisebridge-discuss at lists.noisebridge.net



 > Subject: Re: [Noisebridge-discuss] Bench Supply and

 Laser Cutter?



 >



 > I did a little maintenance on the laser cutter a year

 and a half ago, there



 > should be a brass connection on the left side. .. if

 you duplicate this



 > connection on the right you will be good to go, do not

 solder directly to



 > the tube, you can remove the rubber insulation on the

 right and solder a



 > brass crimp connector to the wire.



 >



 > Blessings,



 >



 > Hilaire



 > On Apr 30, 2015 12:04 PM, "Torrie Fischer"

 <tdfischer at hackerbots.net>

 wrote:



 > The laser tube needs wired up. It is sitting inside the

 tube compartment in



 >



 > the laser cutter itself. Thats about as much as I know

 :)



 >



 > On Thursday, April 30, 2015 07:29:48 AM Zach R

 wrote:



 > > Hey all,



 > >



 > >   It was great to see some of the old faces at

 NB on Monday.  We had



 > >   Michael



 > >



 > > L, Rubin, Jake, Miloh, Kevin and some other peeps

 of the OG variety



 > > holding



 > >



 > > it down !  Felt like old times :)



 > >



 > >



 > >



 > > Me and Jake took a stab at the blown bench supply

 that everyone was using



 > >



 > > for years (the 15V x2 output adjustable one). 

 It's seen a lot of use,



 > >



 > > love, and abuse and it would be nice to have it

 going again.  It has been



 > >



 > > moved to the hackershelves now since it was taking

 a lot of time to repair



 > >



 > > and it got late.  Here is the diagnosis I

 made:



 > >



 > >



 > >



 > > 1) both outputs are good voltage-wise and adjust

 properly



 > >



 > > 2) Current control on both sides is shot, appears

 worse on the left as it



 > >



 > > actually displays a negative number (hah) 3) I

 believe the current is



 > >



 > > controlled by 2 logic chips using a sense

 resistor.  Those chips are



 > > CD1044



 > >



 > > and CD4066 I believe. 4) I recommend replacing

 those chips and / or



 > >



 > > investigating the current control circuitry on the

 power converter board.



 > >



 > > 5) Note power converter boards have 2x pico fuses

 each that check out fine



 > >



 > > (they are yellow)



 > >



 > >



 > >



 > >



 > >



 > > And I've been meaning to ask: what exactly is

 wrong with the laser cutter?



 > >



 > > Does it need some expensive part?  I would LOVE

 to take a stab at



 > > repairing



 > >



 > > this since its one of the finest pieces of

 machinery we have at NB.



 > >



 > >



 > >



 > > Best,



 > >



 > > Zach



 >



 > _______________________________________________



 >



 > Noisebridge-discuss mailing list



 >



 > Noisebridge-discuss at lists.noisebridge.net



 >



 > https://www.noisebridge.net/mailman/listinfo/noisebridge-discuss



 >



 >



 >



 > _______________________________________________



 > Noisebridge-discuss mailing list



 > Noisebridge-discuss at lists.noisebridge.net



 > https://www.noisebridge.net/mailman/listinfo/noisebridge-discuss







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