This time I'll show you how I machined the socket mountings and body cavity of the microwave coaxial low pass filters to exacting tolerances using a lathe, mill, superglue and a blowtorch. Precision is critical to ensure that the filter performs to spec and the contacts are gas-tight. That means they won't leak microwave energy from any gaps. Machining tiny parts to within a few ten-thousandths of an inch on a 1980s manual Colchester lathe and a '60s Bridgeport milling machine is nicely challenging, but it's good fun chasing those microns!
This is part 4 of the series about machining a 1.3 GHz high power low pass coaxial filter to suppress harmonics from a high powered 23 cm band microwave transmitter. The rest of the videos are in this playlist: • 1.3 GHz Coaxial Low Pa...
Getting a near gas-tight pressure joint between the sockets and the ends plates is vital to ensure that circulating currents are confined to the inside of the low pass filter assembly so it performs exactly like the modelled simulation.
AIMEE my Artificially Intelligent Machining and Engineering Expert system advisor gives me a hard time as usual. It's richly deserved. I'm a rubbish machinist.
AIMEE has dreams of being Quinn Dunki, or Scott from Kentucky Ballistics, but as she is merely a collection of JPEG bytes created by a Generative Adversarial Network at thispersondoesnotexist.com it is a rather unattainable dream. Assuming bytes can dream. AIMEE's role is that of The Chorus in classical Greek plays, she has 20/20 hindsight and is a mix of the big sister I never had, my primary school teacher and an old manager I worked with. "Scary" doesn't even start to describe her.
She's showing off her new Google Cloud TTS API voice which includes phoneme directives, and she now runs on Python instead of JSON. If that sounds like gibberish, try asking a teenager to explain. Ignore they way they sigh and roll their eyes, they do that anyway.
Links to tools and things. For the Amazon items, I get a tiny affiliate commission from each sale, it doesn't affect the price you pay and it helps me make more videos! First link to each item is Amazon.com, second (if there is one) is for UK/DE and some other countries if the same item is available on those sites.
Starrett 93B tap wrench amzn.to/3PQgpVX or amzn.to/3N21fLz
Edge Technology lathe chuck spider set amzn.to/3x0t5Rh
These other links are just links to good stuff, I don't get anything other than a nice warm feeling if you buy them and enjoy them as much as I do.
Sheepskin Morse Taper Wiper from Chronos www.ebay.co.uk/itm/303238601858
Music: Corncob by Kevin Macleod is licenced to RU-vid
Kerching sound by Benboncan freesound.org/people/Benbonca... creativecommons.org/licenses/...
Pixel Shades by me
Contents:
00:00 Body
03:42 Cap
09:31 Glue
15:10 DRO
20:43 Flycut
19 июн 2024
