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| For SEO your supposed to add a caption! DIY Metalization. |
A very quick update...this is the state of the system now. The steel belljar is working well. Sight glasses seems to be sealed ok too. After buying a very nicely priced butterfly valve.( Thanks to JF and his wife for the delivery!) I can now cut off the diffstack from the belljar. I got down to below the range of the pirani gauge. Oh yes, I'm sorry I really coped out. I bought a diff pump on Ebay...Interestingly the urge to get the DIY one is still strong in my mind. I do intend to revisit it in the near future. If only to get some closure!
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| Belljar Hoist Mount |
The jar is heavy so I will put it on a pulley and hoist eventually.
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| Vacuum Chamber Interior |
And the interior..stainless steel M10 threaded bars tapped into the base plate.(gas escape grooves cut accross the threads that are in the tapped holes. To try and minimize virtual leaks.). A rolled aluminium ring 5x25mm. Soldered at the join (my first aluminium soldering. Very possible. Probably not a good idea for sealing... Must fly!
