Inside of a Bambu Lan 3D printer. Three mysterious shapes are being created out of black carbon-fibre-filled PLA

Notices where this attachment appears

1. Embed this notice
   Neil G4DBN (g4dbn@mastodon.radio)'s status on Wednesday, 19-Jun-2024 11:45:35 JST Neil G4DBN

   Mysterious Things appearing on my Bambu X1C. Spiders to support hyperbolic Cassegrain subreflectors in the very deep Edmund Optics 18 inch parabolic dishes with f/d 0.25, so the focal point is at the same height as the dish rim. Total pain to illuminate unless you set it up as a Cassegrain, with the feedhorn phase centre right at the dish face centre orifice. These are for 76,122,134 and 248 GHz #hamradio