Can I make my own ConFlat flanges?

Every fusor and fusion system seems to need a vacuum. This area is for detailed discussion of vacuum systems, materials, gauging, etc. related to fusor or fusion research.
Ameen Aydan
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Re: Can I make my own ConFlat flanges?

Post by Ameen Aydan » Tue Apr 17, 2018 7:56 pm

ok thanks, can we get to answering the question now... please?

Jackson Oswalt
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Re: Can I make my own ConFlat flanges?

Post by Jackson Oswalt » Tue Apr 17, 2018 8:35 pm

Your question has been answered countless times. Is there something you’d like to hear? Yes, you can make your own conflat flange. Go ahead. The question you are asking is not a yes or no question, but you want a yes or no answer. If you truly believe you are capable of making a decent flange, then do it. Maybe you’ll learn something.

Jerry Biehler
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Re: Can I make my own ConFlat flanges?

Post by Jerry Biehler » Wed Apr 18, 2018 3:11 am

Yes, you can. You dont need a CNC machine. And CNC is much more complex than throwing a CAD file at a machine and make it go.

I made this adapter years and years ago, manually machined:

ImageIMGP4940 by Jerry Biehler, on Flickr

Jerry Biehler
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Re: Can I make my own ConFlat flanges?

Post by Jerry Biehler » Wed Apr 18, 2018 3:18 am

Better pic with less glare:

ImageIMGP4948 by Jerry Biehler, on Flickr

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Richard Hull
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Re: Can I make my own ConFlat flanges?

Post by Richard Hull » Wed Apr 18, 2018 7:42 pm

I also hand turned and hand milled my first true fusor flanges, view port window and adaptors. Many hours and great fun at the time. When figured against a paying wage for my efforts versus the list price of true conflats. I would have been payed a bit over $1.00 per hour, once material costs were figured in. At my age I rather live those hours doing more fun stuff than standing at a lathe or mill as I have more money now than time.

If you have full access and command over a CNC system, and all materials needed, go for it. No need to discuss it, just do it!

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.

Ameen Aydan
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Re: Can I make my own ConFlat flanges?

Post by Ameen Aydan » Wed Apr 18, 2018 7:46 pm

thank you so much for this reply this was exactly the answer i was looking for fromthe last two people. is it okay if i pm you for some more information about this subject, just so i can get a little help to start up.

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Richard Hull
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Re: Can I make my own ConFlat flanges?

Post by Richard Hull » Wed Apr 18, 2018 7:51 pm

No need to PM me.....I know zero about CNC beyond how cool it is and expensive to own. I know lot about lathe work and milling and I know I would never make one more vacuum fitting during my lifetime for less than $100.00/hr!!! I would be glad to make you a single 8" CF flange for $2300.00. Nuff said....

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.

Tom McCarthy
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Re: Can I make my own ConFlat flanges?

Post by Tom McCarthy » Wed Apr 18, 2018 8:12 pm

Ameen I would advise printing off something like the following:

https://www.kimballphysics.com/multicf- ... dimensions

It contains most all the dimensions needed for making your own flanges. Your next step is to find someone locally who can help you turn those dimensions into a real flange, perhaps someone in that college's machine shop, or someone from another machine shop locally.

Ameen Aydan
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Re: Can I make my own ConFlat flanges?

Post by Ameen Aydan » Thu Aug 23, 2018 11:12 pm

Hello,

I recall further back in this thread that John Futter mentioned that I can get some ConFlat flanges from China at cheaper than the material costs. IS this true? If so, can anybody reference where to get them? As well, would they be of any lesser quality than the average you can purchase from Kurt J Lesker? Would they perform the same in a vacuum (keep the vacuum at a low pressure)?

Thank You

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