FUJ-219 Magnetically Assisted Ionization fusor

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Maciek Szymanski
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FUJ-219 Magnetically Assisted Ionization fusor

Post by Maciek Szymanski » Fri Mar 20, 2020 10:48 pm

In the other thread I’ve started discussion about fusor with magnetically assisted ionization. Here I’m going to put the pictorial documentation of the design and building process.


Main chamber assembly drawing:
F8F2BA7C-1F9A-4581-91B7-3F4C6141C9C1.jpeg

Anode assembly/parts drawing:
17E77106-3842-4E4B-B6CB-0853F7FDFBE7.jpeg

Chamber end caps, stainless sphere for anode shell and main sealing o-ring:
D2E4C638-3C83-4C79-8B2F-D9976EB424CB.jpeg
“Begin at the beginning," the King said, very gravely, "and go on till you come to the end: then stop.” ― Lewis Carroll, Alice in Wonderland

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Richard Hull
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Re: FUJ-219 Magnetically Assisted Ionization fusor

Post by Richard Hull » Sat Mar 21, 2020 5:06 am

You are off to a good start. Love that ancient RPN H-P calculator.

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.

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Maciek Szymanski
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Re: FUJ-219 Magnetically Assisted Ionization fusor

Post by Maciek Szymanski » Sat Mar 21, 2020 9:24 pm

Richard Hull wrote:
Sat Mar 21, 2020 5:06 am
Love that ancient RPN H-P calculator.
I realny like doing things old school way. After many years of working with high-end 3D cad systems manual drafting is a very refreshing experience.


As the solenoids must be quite exactly positioned in line one with other and with the ports in the anode, the actual shape of the shell must be known precisely. The caps I’ve received do not follow the EN-10253-4 dimensions so I’ve to cut the fitting template to transfer the profile to the drawing:
9DC7E626-E7CF-4888-A0B9-B679B75CB777.jpeg

The less rounded shape is actual profile. The other is drawn as in the standard. Now the port center points coordinates can be obtained for machining:
E4408100-F965-40B6-BF46-63F022C7F35E.jpeg
“Begin at the beginning," the King said, very gravely, "and go on till you come to the end: then stop.” ― Lewis Carroll, Alice in Wonderland

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Richard Hull
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Re: FUJ-219 Magnetically Assisted Ionization fusor

Post by Richard Hull » Sat Mar 21, 2020 9:41 pm

Old school to say the least. I have a separate ASDD degree that I got on a lark back in 1967 (Associate Science Drafting and Design). I learned drafting thinking that it would be a useful skill. It is, of course, but the computers wiped out the old big boards with the attached drafting "machine", tedious 'inking in", etc. I have a box filled with drafting implements, triangles, protractors, french curves and such. I will, on rare occasions, haul them out and do a pretty drawing when it is warranted. I use Microsoft's paint now as a crude drawing program and all my circuit diagrams are drawn using the free Express PCB circuit drawing program. 90% of such product is used and posted here in my FAQs and some postings.

Still, I love to see the old drafting efforts done by a master.

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.

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Maciek Szymanski
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Location: Warsaw, Poland

Re: FUJ-219 Magnetically Assisted Ionization fusor

Post by Maciek Szymanski » Wed Mar 25, 2020 9:51 pm

Today I’ve found time to do some machining. I’ve made all the openings in the anode shell. For now I’m a bit limited because of the pandemics. I can’t use the big lathe and welding equipment at my work, so no way to make the big outer shell parts. With my small lathe I can do only the anode parts and solenoids.


Oldschool as always. No DRO, no CNC just dials and calipers.
1EB569C6-FA95-42A4-8366-442C3156F42D.jpeg
1EB569C6-FA95-42A4-8366-442C3156F42D.jpeg (98.64 KiB) Viewed 208 times

Not much left from the original stainless sphere.
4E308B8A-9BB9-43A5-8C71-18FB2912C8F1.jpeg
4E308B8A-9BB9-43A5-8C71-18FB2912C8F1.jpeg (86.87 KiB) Viewed 208 times

Machined anode shell. It still needs some finishing:
74CB510D-C5F2-4858-85F5-ECEDAC7DBCB5.jpeg
74CB510D-C5F2-4858-85F5-ECEDAC7DBCB5.jpeg (67.53 KiB) Viewed 208 times
“Begin at the beginning," the King said, very gravely, "and go on till you come to the end: then stop.” ― Lewis Carroll, Alice in Wonderland

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Richard Hull
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Re: FUJ-219 Magnetically Assisted Ionization fusor

Post by Richard Hull » Wed Mar 25, 2020 10:46 pm

Very, Very nice work! I always like to see interesting ideas turned into hardware. You are one of the "doers". As always, I look forward to your insightful and interesting posts.

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.

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Maciek Szymanski
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Joined: Wed Nov 20, 2019 7:31 pm
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Re: FUJ-219 Magnetically Assisted Ionization fusor

Post by Maciek Szymanski » Fri Apr 03, 2020 9:07 pm

Thanks Richard! Definitely I am a “doer”. All long and pointless discussions are not something for me - my approach is always “lets build it and test - we will know more and improve it afterwards”. It’s also a reason for which very big and complex projects (like a skyscraper or a big tokamak) are very hard for me to imagine.

In the meantime I’m doing some slow progress:

The beam ports, junction sleeve, stalk and feed through are machined and temporarily assembled.
770D43C9-51B5-4387-BBB2-23B8EB5A5030.jpeg
770D43C9-51B5-4387-BBB2-23B8EB5A5030.jpeg (68.32 KiB) Viewed 54 times

496597E5-D1A1-4C86-AC72-E0DA7D34A273.jpeg
496597E5-D1A1-4C86-AC72-E0DA7D34A273.jpeg (64.29 KiB) Viewed 54 times

866966C6-CA6B-401A-99D6-37E4FE5B229E.jpeg
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“Begin at the beginning," the King said, very gravely, "and go on till you come to the end: then stop.” ― Lewis Carroll, Alice in Wonderland

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Richard Hull
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Re: FUJ-219 Magnetically Assisted Ionization fusor

Post by Richard Hull » Sat Apr 04, 2020 6:33 am

Nice work! Wish I good do stuff that nice. (I probably could, but I'm too lazy)

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.

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