<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>True, but for our purposes I figure a dollar store DVM and a photocopy of the lookup table (I think I've seen an XY graph of the function and perhaps a formula as well) should do for now. The embedded setpoint function should serve as a good HV interlock for the coater, and for the diff pump heater for the SEM as well.</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>I've never heard of carbon coating for an SEM, isn't that more of a TEM thing? I do have a few carbon coaters.</span></div><div style="color: rgb(0, 0, 0);
font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span>-Jeff</span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><span><br></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color: transparent; font-style: normal;"><br><span></span></div><div style="color: rgb(0, 0, 0); font-size: 16px; font-family: times new roman,new york,times,serif; background-color:
transparent; font-style: normal;"><span><b></b></span>John McMaster <johndmcmaster@gmail.com><br></div><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><div dir="ltr"><font face="Arial" size="2"> <b><span style="font-weight: bold;">To:</span></b> "sem@lists.noisebridge.net" <sem@lists.noisebridge.net> <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, July 10, 2013 11:34 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Sem] Retaining the SEM and building a sputter coater<br> </font> </div> <div class="y_msg_container"><br><div id="yiv26828345">
<div>
<div class="yiv26828345moz-cite-prefix">Looked at the user manual in a little
more detail. These are the analog ones, we will have to come up
with a separate display. It might be a lot more convenient to
spend a little more and get a gauge matched with a display.
Multimeter, arduino + LCD, etc can work but we will have to do
something to make it readable<br>
<br>
On 07/10/2013 12:29 AM, Jeff Miller wrote:<br>
</div>
<blockquote type="cite">
<div style="color:#000;background-color:#fff;font-family:times new roman, new york, times, serif;font-size:12pt;">
<div><span>Actually, here's a pair of Mini Convectrons for about
$40 shipping included. We really could use 2 or 3. The one
pictured has 1/8" npt fittings, which are probably the most
practical for us at this point. </span></div>
<div style="color:rgb(0, 0, 0);font-size:16px;
font-family:times new roman, new york, times, serif;
background-color:transparent;font-style:normal;"><br>
<span></span></div>
<div style="color:rgb(0, 0, 0);font-size:16px;
font-family:times new roman, new york, times, serif;
background-color:transparent;font-style:normal;"><span>Ebay item # </span><br>
231013652852</div>
<div style="color:rgb(0, 0, 0);font-size:16px;
font-family:times new roman, new york, times, serif;
background-color:transparent;font-style:normal;"><br>
<span></span></div>
<div style="color:rgb(0, 0, 0);font-size:16px;
font-family:times new roman, new york, times, serif;
background-color:transparent;font-style:normal;"><span>I'm short on cash, but
I could clean, test, and calibrate them. Anyone feeling
flush with $40? </span></div>
<div style="color:rgb(0, 0, 0);font-size:16px;
font-family:times new roman, new york, times, serif;
background-color:transparent;font-style:normal;"><br>
<span></span></div>
<div style="color:rgb(0, 0, 0);font-size:16px;
font-family:times new roman, new york, times, serif;
background-color:transparent;font-style:normal;"><span>-Jeff<br>
</span></div>
<div><br>
</div>
<div style="font-family:times new roman, new york, times, serif;font-size:12pt;">
<div style="font-family:times new roman, new york, times, serif;font-size:12pt;">
<div dir="ltr">
<hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> Jeff
Miller <a rel="nofollow" class="yiv26828345moz-txt-link-rfc2396E" ymailto="mailto:mysterylectricity@yahoo.com" target="_blank" href="mailto:mysterylectricity@yahoo.com"><mysterylectricity@yahoo.com></a><br>
<b><span style="font-weight:bold;">To:</span></b>
<a rel="nofollow" class="yiv26828345moz-txt-link-rfc2396E" ymailto="mailto:sem@lists.noisebridge.net" target="_blank" href="mailto:sem@lists.noisebridge.net">"sem@lists.noisebridge.net"</a>
<a rel="nofollow" class="yiv26828345moz-txt-link-rfc2396E" ymailto="mailto:sem@lists.noisebridge.net" target="_blank" href="mailto:sem@lists.noisebridge.net"><sem@lists.noisebridge.net></a> <br>
<b><span style="font-weight:bold;">Sent:</span></b>
Tuesday, July 9, 2013 11:59 PM<br>
<b><span style="font-weight:bold;">Subject:</span></b>
Re: [Sem] Retaining the SEM and building a sputter
coater<br>
</font> </div>
<div class="yiv26828345y_msg_container"><br>
<div id="yiv26828345">
<div>
<div style="color:#000;background-color:#fff;font-family:times new roman, new york, times, serif;font-size:12pt;">
<div><span>Oh BTW how big is that diff pump? Water
cooled I bet?</span></div>
<div style="color:rgb(0, 0,
0);font-size:16px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><br>
<span></span></div>
<div style="color:rgb(0, 0,
0);font-size:16px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><span>I've
been reading about how silver is a practical
alternative to gold for sputtering specimens.
Looks promising. <br>
</span></div>
<div style="color:rgb(0, 0,
0);font-size:16px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><br>
<span></span></div>
<div style="color:rgb(0, 0,
0);font-size:16px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><span>-Jeff</span></div>
<div style="color:rgb(0, 0,
0);font-size:16px;font-family:times new roman, new york, times, serif;background-color:transparent;font-style:normal;"><span><br>
</span></div>
<div><br>
</div>
<div style="font-family:times new roman, new york, times, serif;font-size:12pt;">
<div style="font-family:times new roman, new york, times, serif;font-size:12pt;">
<div dir="ltr">
<hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b>
John McMaster
<a rel="nofollow" class="yiv26828345moz-txt-link-rfc2396E" ymailto="mailto:johndmcmaster@gmail.com" target="_blank" href="mailto:johndmcmaster@gmail.com"><johndmcmaster@gmail.com></a><br>
<b><span style="font-weight:bold;">To:</span></b>
<a rel="nofollow" class="yiv26828345moz-txt-link-abbreviated" ymailto="mailto:sem@lists.noisebridge.net" target="_blank" href="mailto:sem@lists.noisebridge.net">sem@lists.noisebridge.net</a> <br>
<b><span style="font-weight:bold;">Sent:</span></b>
Tuesday, July 9, 2013 11:26 PM<br>
<b><span style="font-weight:bold;">Subject:</span></b>
Re: [Sem] Retaining the SEM and building a
sputter coater<br>
</font> </div>
<div class="yiv26828345y_msg_container"><br>
<div id="yiv26828345">
<div>
<div class="yiv26828345moz-cite-prefix">FWIW
I am converting my vacuum system from
diffusion to turbo pumped. Assuming it
works (they are really expensive working
so I had to piece it together from eBay
after doing a bunch of research) I may
have a Varian diffusion pump to donate
to NB for SEM / sputter system use. I
will try to play around with coating on
my setup in the near future.<br>
<br>
Let me know if there is interest for
people to discuss and plan things out.
I can usually only meet on weekends
though.<br>
<br>
On 07/09/2013 12:08 AM, Jeff Miller
wrote:<br>
</div>
<blockquote type="cite">
<div style="color:#000;background-color:#fff;font-family:times new roman, new york, times, serif;font-size:12pt;">Well it's a bit
of a catch-22. As long as there's
ongoing interest in the SEM and we can
keep it and the space free from decay,
the SEM can stay. If it's
underutilized and falls into
disrepair, it should go somewhere it
might be better appreciated.<br>
<br>
I haven't seen the space lately but it
sounds finished enough.<br>
<br>
I think we should put the priority on
building a sputter coater. It should
be fairly simple to do. I've seen some
pretty poor designs on YouTube that
still sort of work. I think we could
build a pretty nice one over 2 or 3
months of weekends, tops.<br>
<br>
Probably <$100 in parts that we
can't scrounge or make for something
quite nice.<br>
<br>
I'll be looking at commercial designs
this week and try to come up with some
plans this week and next.<br>
<br>
-Jeff<br>
<br>
<br>
<div style="font-family:times new roman, new york, times, serif;font-size:12pt;">
<div style="font-family:times new roman, new york, times, serif;font-size:12pt;"> </div>
</div>
</div>
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