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My new Syil X5 CNC mill is ready to ship from the factory. Might be here by New Year if I'm lucky. This is it, just completed QA testing

@g4dbn :O

Finally decided to join the 21st century and move away from 100% manual machining?

I'm excited to see what hardware you manage to make with it. Hope we still see some manual turning and such here and there though :)

@azonenberg The main driver was so I could machine elliptical and offset-parabolic reflectors, plus things like laterally-displaced ellipse Gregorian antenna systems at mmWave frequencies, and slot arrays with hundreds of elements. The stress of doing manual machining for even a 2 x 24 slot array at 10 GHz is way too high, so 100+ precision slot arrays are best done on machines. Same with making batch runs of waveguide parts

@g4dbn @azonenberg the possibilities…! I’m interested to know if you will be able to do very small runs of custom uwave & mmWave plumbing for amateur use.

@jmorris @azonenberg Definitely, I'll mostly be building up a stock of popular parts for sale rather than doing a lot of custom work, but it's only a matter of scale. I can do gold/silver plating, anodizing, laser marking, electroforming and casting, so most things are possible other than precision dishes more than about 230 mm diameter. Once I get the lathe modified for one-axis CNC, I should be able to make large cast aluminium dishes up to 18 inch diameter, but 12 inches is easier

@g4dbn @azonenberg those dishes should be well-sized for for > 100 GHz, especially with good surface RMS and feed accuracy. btw, something that would be broadly useful are matching plates for common Ku band satcom feed horns with a circular waveguide connection, to wr75 or wr90.

@jmorris @azonenberg of course what I REALLY need is a wire EDM machine and a die sinker

@g4dbn @jmorris Oooh, shiny (literally).

I've never done any waveguide or over-the-air stuff myself (I generally am working with baseband communications stuff, trying to keep my microwave signals ON the board) but have always wanted to fool around with it.

With my instrumentation I can at least somewhat operate from DC to Ku band so any "starter stuff" you might be able to make in the WR90/WR75 so I can play around with 3cm / X-band amateur stuff would be cool. SMA to waveguide transitions, horn antennas, etc.

Neil G4DBN

@jmorris @azonenberg I'm going to try to get to Seattle next year when I'm giving a lecture at a Microwaves conference in Vancouver. I want to visit the Connections Museum in Seattle and meet some microwave folks in the area

@g4dbn @jmorris Awesome. I'm across the water so it'll be a bit of a detour but if you don't mind the trip I'd love to have you over for a lab tour etc.

@azonenberg @jmorris Sounds cool, I'll see if I can get something organised. I checked the date and it's later than I thought, Oct 3-5, somewhere near Tsawwassen.

@g4dbn @azonenberg cool, I'm planning to attend and also have at least one paper.