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Re: Oil Diffusion/vapor jet pump design drawings
Thats pretty much what i was looking for. Thanks Beinte, Ross ________________________________ To: VacuumX@... Sent: Tuesday, 25 February 2014, 9:36 Subject: Re: [VacuumX] Oil
By R Parsons · #3897 ·
Re: Oil Diffusion/vapor jet pump design drawings
Ross, This project may be of interest to you: http://www.fusor.net/board/viewtopic.php?f=10&t=4096 http://www.fusor.net/board/viewtopic.php?f=10&t=4096 George
By [email protected] · #3895 ·
Re: Oil Diffusion/vapor jet pump design drawings
Hi Ross There are a few web pages with some designs. A time ago I found this web page, with an untested 1 inch 2 stage pump: http://www.belljar.net/index.htm http://www.belljar.net/fbleediffpumps.pdf
By beinte_wanders · #3894 ·
Oil Diffusion/vapor jet pump design drawings
Hi, I would like to make a small oil diffusion/vapor jet pump out of st/stl. preferably a two stage pump based on an existing working design. and i was wondering if anybody here has any dimensioned
By R Parsons · #3893 ·
Yippee! It works!!
After more than a month of fiddling and hard work, the NCA ATM aluminizer is back in operation!! We got it down to 8x10^-5 torr and the coating on John P's mirror was quite presentable. Thanks again
By Guy Brandenburg · #3892 ·
Re: new systems, was Re: adventures in vacuum coating maintenance
You make a very good point! ;) I almost always associate with people who are into the same sort of stuff I'm into, so I'm accustomed to that consistency. In a nutshell, I have a 14,000 square foot
By Dave McGuire · #3891 ·
Re: new systems, was Re: adventures in vacuum coating maintenance
Your mention of 'really cool stuff' is a real teaser. You might get more responses if you mention what that stuff is - - - YMMV! Really appreciated the report too!! Dee
By o1bigtenor · #3890 ·
new systems, was Re: adventures in vacuum coating maintenance
This is an inspiring read. I picked up a metalization system recently, and hope to dig into it soon. I have a basic familiarity with high vacuum systems and techniques, but only basic...I'm certain I
By Dave McGuire · #3889 ·
adventures in vacuum coating maintenance
Our vacuum aluminizer at the Chevy Chase Community Center's amateur telescope making workshop has given me quite an education over the past few months or so. We began finding that the pressures would
By Guy Brandenburg · #3888 ·
Re: Leaks
I would like to take the time to add some comments on the method that I have used to find leaks. I worked on vacuum systems while getting my phd and still have a interest in them. (Currently working
By dick_j65@... · #3887 ·
Re: Leaks
I don't have any hard numbers on how sensitive it all is. I just works depressingly well. I checked 10 interfaces and found 6 of them to be leaking. My monster 18' flanges still leak but they were for
By eosraptor1 · #3886 ·
Re: Leaks
Yes, I know. But all those detectors work with OVERPRESSURED volume. This is why I ask about sensitivity. Can I use that $20 detector to detect a leak that doesn't allows me to pump down my chamber to
By Vladimir Chutko · #3885 ·
Re: Leaks
Search eBay for Freon Detectors, many from about $20.00. Haven't tried it but sounds good. Don Black.
By Jaanette Black · #3884 ·
Re: Leaks
Drew, What is the sensitivity of that method? Long time ago I successfully used halogen leak detector to find leaks in high vacuum systems pumped down with a leak to 10-3 - 10-5 torr. The special
By Vladimir Chutko · #3883 ·
Re: Leaks
Thanks, Andrew! Guy Brandenburg Sent from my iPhone so full of hilarious errors... ;-€}}
By Guy Brandenburg · #3882 ·
Re: Leaks
I came up with one but it is not fast or environmentally friendly. Get yourself a digital Freon ( halogen ) sniff detector off Ebay ( $20 ). Put a sock over the output of your vacuum pump so the
By eosraptor1 · #3881 ·
Leaks
Anybody have any nice cheap easy reliable leak/detection methods other than 1. Deduction by logic by compartmentalizig 2. Stethoscope 3. Squirting acetone at suspected joints to see if pressure rises
By Guy Brandenburg · #3880 ·
I just bought SC-3 and I'd love some help, eventually :)
I'm looking to aluminum/mirror coat art objects. It's a old old Kinney SC-3 that I bought for $700. I need to find high amp plugs that are used as "shorts". I'll have some pictures up soon.
By FreakCitySF@... · #3879 ·
Re: Difficulty level of adding SiO or SiO2 overcoating?
You need a film thickness monitoring system and tantalum boats I did put up a drawing of my design in the photos or files sections, most use quartz wafers and crystal oscillators to monitor the film
By Thomas Janstrom · #3878 ·
Difficulty level of adding SiO or SiO2 overcoating?
Someone proposed that I investigate how much it would cost, both time and energy, to add on the capacity to do overcoating (i.e silicon monoxide or dioxide or MgFl or whatever) to a late-1960s
By Guy Brandenburg · #3877 ·