"waveguide parts from China" Producing waveguide parts is made easy nowadays by the Chinese rapid prototyping companies like PCB Way. I ordered several part and using them on 24GHz eme. Pricing is not bad, especially for the smaller WR42 parts. (more material, higher pricing) You can obtain 10 WR42 bends for less than €100,-. The process is simple: 1. Make an account on PCB WAY 2. Download the requested 3D model below 3. Open PCB WAY website, choose instant quote “CNC/3D printing and press “Add files” 4. Choose 3D printing 5. Drag and drop the 3D file in the drop box 6. You can view the part by pressing the thumbnail in the drop box 7. Select “quantity” more is cheaper per part 8. Select “Aluminium” as material 9. Leave other settings “as is” 10. You can add more parts if you want! 11. Press Submit Request. 12. Just follow the flow now! This is a living document and I will add more parts in the future. Some 24GHz dish feeds are in progress.
E bend	Downloads: WR42 E bend WR75 E bend WR90 E bend
H bend	Downloads: WR42 H bend WR75 H bend WR90 H bend
Twist	Downloads: WR42 twist WR75 twist WR90 twist
Straight sections	Downloads: WR42 straight 30mm WR75 straight 48mm WR90 straight 48mm
Waveguide to round sections	Downloads: WR42 to round 10.9mm L = 40mm WR75 to round 20mm L = 80mm WR90 to round 20mm L = 80mm
Waveguide tapers	Downloads: WR42 to WR28 L = 40mm WR42 to WR28 L = 30mm WR90 to `WR75 L = 80mm