It's really been quiet on VacuumX lately and I was wondering if anyone has been doing anything interesting they could share with the Group. I'd hate to see...
3316
dpstorey
Sep 5, 2009 7:32 pm
Hi I'm designing and building a vacuum system for telescope mirror coating. I have inherited a 12" bell jar that needs a new base, I have a Diffstak 63 and an...
3317
Aurigema, Andrew N. (...
eosraptor1
Sep 5, 2009 10:53 pm
Hey Ken, Good to see you getting settled in. I finally bought a 13g re-chargeable SiO evaporator from Leskers to try SiO coating testing. That thing is...
3318
dykins@...
dykins051
Sep 6, 2009 4:17 am
Andrew, You are probably right about the plexiglass. Plastic and high voltage and vacuum are not a good combo. Plastic outgasses anyway and is worse at...
3319
dykins@...
dykins051
Sep 6, 2009 4:25 am
Hi Dominic, Sounds good, especially the bit about grounding the diff/baseplate! The finish on the baseplate may be OK if there are no scratches. If neccesary,...
3320
Gomez Addams
railgap
Sep 10, 2009 1:48 am
... I have been busy with other projects, mostly having to do with high voltage pulsed power stuff. ... Ooh, I envy you! If I ever finish any of the projects...
3321
atm_ken_hunter
Sep 10, 2009 3:00 pm
Oh... Don't envy me. I looked at your link and am truely impressed at your cool stuff! We should be neighbors! If you come back to the Peoria area again, let...
3322
gravityflux
Sep 10, 2009 5:55 pm
I have a Veeco RG1102 ionization gauge unit for sale. It needs a cable and a tube, other than that it should work fine. $50.00 plus shipping - the unit...
3323
Carl Winchester
carlsjc95125
Sep 10, 2009 11:03 pm
Gomez, Thx for posting the link to your Flickr pics. I have not done much with vacuum equipment since the class I toke as part of Laser Tech degree that I...
3324
Gomez Addams
railgap
Sep 12, 2009 3:09 pm
... Alas, I won't be on the air for a while. No money. I'm still collecting radio hardware on the cheap, like a power supply for the one HF transceiver I...
3325
Gomez Addams
railgap
Sep 12, 2009 3:16 pm
... Thank you sir. I've only recently started trying to make things properly instead of building lash-ups. I've learned a lot, but the more I learn, the more...
3326
Gomez Addams
railgap
Sep 12, 2009 3:20 pm
... Oh PS: I am KG0MEZ now. I didn't care about getting a short vanity call because I don't contest, and am still learning code anyhow, I just wanted...
3327
Ken
atm_ken_hunter
Sep 25, 2009 2:29 pm
Hi Guys, I just posted a new (old) photo on the Group home page. If you have a recent photo of your project, please upload the photo(s) and give a description...
3328
Thomas Janstrom
t_janstrom
Oct 5, 2009 1:31 am
I'd like to welcome Franklin to the group, as I suggested he join as his interests run from glass blowing to vacuum experimentation. So Franklin if you read...
3329
henry_3507
Oct 17, 2009 5:28 pm
Dont really know what to use to clean for example glass before aluminize it but have heard that different types of chemicals will help but dont really know the...
3330
Mark
laserglass
Oct 17, 2009 5:49 pm
i used hydro chloric acid (HCl) to clean the glass, the rinse in distilled water and dry with a clean cloth. i used a vacuum deposition method called DC...
3331
Guy Brandenburg
gfbrandenburg
Oct 17, 2009 11:53 pm
first step, bare fingers, water, and dish soap with no additives. You can feel any grit or pieces of insect wings, etc. Then rinse, and use more water and dish...
3332
James Lerch
lerchman_33713
Oct 18, 2009 4:25 pm
My approach is pretty much what Guy described. Dish soap, tap water, and fingers Rinse with tap water Calcium Carbonate (powdered chalk) applied with a round...
3333
James Lerch
lerchman_33713
Oct 18, 2009 4:40 pm
Greetings All, Over the years I've been tolerating my tugsten evaporator design. The main problem I had is short life span of the tungsten. After only a half...
3334
SVC
vacdepman
Oct 18, 2009 6:51 pm
... Some history: * In 1947 John Strong was charged with the cleaning the 200" Palomar mirror for aluminization. "---- so for the two-hundred inch disk, he ...
3335
James Lerch
lerchman_33713
Oct 18, 2009 7:52 pm
I used to worry about oil / water contamination in the air compressor feed. What I've found is once the tank is pressurized and allowed to settle for 30...
3336
SVC
vacdepman
Oct 19, 2009 2:12 pm
... INTERESTING! Do you use glow discharge cleaning in your deposition system? Don ... -- ____________________________________ Donald M. Mattox Society of...
3337
Aurigema, Andrew N. (...
eosraptor1
Oct 19, 2009 5:00 pm
I am sure James will perk up and answer this, but I wanted to chime in also. I built a larger system than James did, but he helped me get mine going. As I...
3338
James Lerch
lerchman_33713
Oct 21, 2009 2:20 pm
... I do, a neon sign transformer and a pair tungsten "glow wires" I'm working on getting some Videos uploaded of the chamber and my version of the coating...
3339
James Lerch
lerchman_33713
Oct 21, 2009 2:41 pm
... Actually, my "glow wires" are on the back wall with the tungstens. Your probably thinking of the cold trap coil I have on the entry to the diff pump.. ......
3340
James Lerch
lerchman_33713
Oct 21, 2009 3:01 pm
When I built the chamber, YouTube wasn't all that. However, since then times have changed. I thought I'd put to together some video blogs about the chamber,...
3341
Aurigema, Andrew N. (...
eosraptor1
Oct 21, 2009 3:35 pm
James, You ol so and so. Good to see you are still makin mischief and having some fun. I actually had to remove some of my own ( older, first generation )...
3342
Thomas Janstrom
t_janstrom
Oct 26, 2009 11:55 am
Hi Ken, Just a quick question, for the XMS-1 deposition monitor we're after 6mHz crystals (like this eBay item# 7612478878) right? Now just have to design a...
3343
Ken
atm_ken_hunter
Oct 26, 2009 1:25 pm
Yep... Those are the correct xtals for the XMS-1. Look on the group foto's for some ideas on the xtal holder. There are sometines rotary relays on eBay also,...
3344
Thomas Janstrom
t_janstrom
Oct 27, 2009 3:34 am
Thanks Ken, Crystals now in the mail, and I think I have a workable design, just got to draw it up and scan it, I'm going to post it to the files section if it...
