Two 50 mm diameter aluminium subreflectors with hyperbolic curved faces. They have scalloped pockets milled out of the rear face, leaving seven narrow ribs to stiffen the reflector. They will be used as part of a 122 gigahertz millimeter wave radio antenna system

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   Neil G4DBN (g4dbn@mastodon.radio)'s status on Wednesday, 01-May-2024 13:44:33 JST Neil G4DBN

   Minor improvements in surface finish on the 122 GHz Cassegrain subreflectors. Using a larger corner-radius end mill. Seven pockets milled, just for the sheer joy of non-symmetry. Still a lot of work to do on pocket finish, deburring/chamfering/radiusing the ribs. My Fusion360 licence doesn't include the 3D debur option. Boo. Investigating whether I can use trace with a sketch path, or design-in some fillets, but that might push the cycle time from "waaay too long" towards "srsly dude?"