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<body class='hmmessage'><div dir='ltr'>Hey Adam,<BR> <BR>You do not need to be a member of Noisebridge to come and do cool stuff there. <BR> <BR>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.<BR><br>Best,<BR>Mitch.<BR><br> <BR><div><hr id="stopSpelling">From: adam@aperture.systems<br>Date: Sun, 3 May 2015 17:32:58 -0400<br>To: noisebridge-discuss@lists.noisebridge.net; organic_unity@yahoo.com<br>Subject: Re: [Noisebridge-discuss] Bench Supply and Laser Cutter?<br><br><div dir="ltr">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 :-)<div><br></div><div>Cheers, </div><div>-Adam</div></div><div class="ecxgmail_extra"><br clear="all"><div><div class="ecxgmail_signature">---<br>Aperture Systems: Redefining Radiography - <a href="http://aperture.systems/" target="_blank">http://aperture.systems/</a><br><a href="http://adammunich.com/" target="_blank">http://adammunich.com/</a> - Cell: +1-650-452-0554<br><br>Be • knowledgeable • social • patient • fearless • compassionate • fun • humble • forgiving. <br><br>Be a leader</div></div>
<br><div class="ecxgmail_quote">On Sat, May 2, 2015 at 3:25 AM, Zach <span dir="ltr"><<a href="mailto:organic_unity@yahoo.com" target="_blank">organic_unity@yahoo.com</a>></span> wrote:<br><blockquote class="ecxgmail_quote" style="padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;">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?<br>
<br>
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.<br>
<br>
-Zach<br>
--------------------------------------------<br>
<span>On Fri, 5/1/15, Adam Munich <adam@aperture.systems> wrote:<br>
<br>
Subject: Re: [Noisebridge-discuss] Bench Supply and Laser Cutter?<br>
</span> To: "Torrie Fischer" <<a href="mailto:tdfischer@hackerbots.net">tdfischer@hackerbots.net</a>><br>
Cc: "Noisebridge" <<a href="mailto:noisebridge-discuss@lists.noisebridge.net">noisebridge-discuss@lists.noisebridge.net</a>><br>
Date: Friday, May 1, 2015, 12:48 PM<br>
<div><div class="h5"><br>
I have one<br>
of those full spectrum models ( its at Sudo room right<br>
now) and it's not an incredibly complex machine. I<br>
would say that wiring up the laser tube would take only<br>
about 1 minute, the difficulty is aligning the laser there<br>
after adjusting all the mirrors.<br>
Last time I did this I used polycarbonate<br>
glasses ( which are opaque at that wavelength ) and a magnet<br>
over the safety switch sensor to make the machine think it<br>
wasnt open. I then held down the later test button and used<br>
a piece of cardboard to determine where the beam is and<br>
where it should go, and adjusted accordingly.<br>
If anybody wants to take a stab at it, doing it<br>
that way shouldn't take more than 30 minutes.<br>
On May 1, 2015 12:47 PM,<br>
"Torrie Fischer" <<a href="mailto:tdfischer@hackerbots.net">tdfischer@hackerbots.net</a>><br>
wrote:<br>
We've<br>
got a huge bin of screwdrivers in the dirty shop. Needle<br>
nose pliers<br>
<br>
tend to end up in the big red rolling toolbox.<br>
<br>
<br>
<br>
On Friday, May 01, 2015 01:07:06 AM Zach R wrote:<br>
<br>
> Thanks for info everyone.<br>
<br>
><br>
<br>
> That's great, I thought it was broken way<br>
worse. I can bring my tools<br>
<br>
> over and look at it next week. NOTE, we do not have<br>
ANY needle nose pliers<br>
<br>
> and the dozens of tools I donated last month (lots of<br>
screwdrivers and<br>
<br>
> such) were nowhere to be found on monday. Makes doing<br>
these repairs really<br>
<br>
> difficult cause I have to bring my tools from<br>
home...just an fyi for<br>
<br>
> everyone to keep an eye on what we have.<br>
<br>
><br>
<br>
> Do you know more about the brass contact it uses? <br>
Id be down to order<br>
<br>
> another on ebay rather than replicate / jerry rig<br>
something for such a nice<br>
<br>
> piece of equipment.<br>
<br>
><br>
<br>
> -Zach<br>
<br>
><br>
<br>
> Date: Thu, 30 Apr 2015 14:37:23 -0700<br>
<br>
> From: <a href="mailto:metatecque@gmail.com">metatecque@gmail.com</a><br>
<br>
> To: <a href="mailto:tdfischer@hackerbots.net">tdfischer@hackerbots.net</a><br>
<br>
> CC: <a href="mailto:noisebridge-discuss@lists.noisebridge.net">noisebridge-discuss@lists.noisebridge.net</a><br>
<br>
> Subject: Re: [Noisebridge-discuss] Bench Supply and<br>
Laser Cutter?<br>
<br>
><br>
<br>
> I did a little maintenance on the laser cutter a year<br>
and a half ago, there<br>
<br>
> should be a brass connection on the left side. .. if<br>
you duplicate this<br>
<br>
> connection on the right you will be good to go, do not<br>
solder directly to<br>
<br>
> the tube, you can remove the rubber insulation on the<br>
right and solder a<br>
<br>
> brass crimp connector to the wire.<br>
<br>
><br>
<br>
> Blessings,<br>
<br>
><br>
<br>
> Hilaire<br>
<br>
> On Apr 30, 2015 12:04 PM, "Torrie Fischer"<br>
<<a href="mailto:tdfischer@hackerbots.net">tdfischer@hackerbots.net</a>><br>
wrote:<br>
<br>
> The laser tube needs wired up. It is sitting inside the<br>
tube compartment in<br>
<br>
><br>
<br>
> the laser cutter itself. Thats about as much as I know<br>
:)<br>
<br>
><br>
<br>
> On Thursday, April 30, 2015 07:29:48 AM Zach R<br>
wrote:<br>
<br>
> > Hey all,<br>
<br>
> ><br>
<br>
> > It was great to see some of the old faces at<br>
NB on Monday. We had<br>
<br>
> > Michael<br>
<br>
> ><br>
<br>
> > L, Rubin, Jake, Miloh, Kevin and some other peeps<br>
of the OG variety<br>
<br>
> > holding<br>
<br>
> ><br>
<br>
> > it down ! Felt like old times :)<br>
<br>
> ><br>
<br>
> ><br>
<br>
> ><br>
<br>
> > Me and Jake took a stab at the blown bench supply<br>
that everyone was using<br>
<br>
> ><br>
<br>
> > for years (the 15V x2 output adjustable one). <br>
It's seen a lot of use,<br>
<br>
> ><br>
<br>
> > love, and abuse and it would be nice to have it<br>
going again. It has been<br>
<br>
> ><br>
<br>
> > moved to the hackershelves now since it was taking<br>
a lot of time to repair<br>
<br>
> ><br>
<br>
> > and it got late. Here is the diagnosis I<br>
made:<br>
<br>
> ><br>
<br>
> ><br>
<br>
> ><br>
<br>
> > 1) both outputs are good voltage-wise and adjust<br>
properly<br>
<br>
> ><br>
<br>
> > 2) Current control on both sides is shot, appears<br>
worse on the left as it<br>
<br>
> ><br>
<br>
> > actually displays a negative number (hah) 3) I<br>
believe the current is<br>
<br>
> ><br>
<br>
> > controlled by 2 logic chips using a sense<br>
resistor. Those chips are<br>
<br>
> > CD1044<br>
<br>
> ><br>
<br>
> > and CD4066 I believe. 4) I recommend replacing<br>
those chips and / or<br>
<br>
> ><br>
<br>
> > investigating the current control circuitry on the<br>
power converter board.<br>
<br>
> ><br>
<br>
> > 5) Note power converter boards have 2x pico fuses<br>
each that check out fine<br>
<br>
> ><br>
<br>
> > (they are yellow)<br>
<br>
> ><br>
<br>
> ><br>
<br>
> ><br>
<br>
> ><br>
<br>
> ><br>
<br>
> > And I've been meaning to ask: what exactly is<br>
wrong with the laser cutter?<br>
<br>
> ><br>
<br>
> > Does it need some expensive part? I would LOVE<br>
to take a stab at<br>
<br>
> > repairing<br>
<br>
> ><br>
<br>
> > this since its one of the finest pieces of<br>
machinery we have at NB.<br>
<br>
> ><br>
<br>
> ><br>
<br>
> ><br>
<br>
> > Best,<br>
<br>
> ><br>
<br>
> > Zach<br>
<br>
><br>
<br>
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