SMA Attenuator holder

General

To keep the tiny SMA attenuators in order and because it is difficult to read the tiny text on them, I made this holder with big text for attenuation

1. 1 - 1 dB
2. 2 - 2 dB
3. 3 - 3 dB
4. 6  - 6 dB
5. 10 - 10 dB
6. 20 - 20 dB
7. 6D - 6 dB with DC block
8. 6D - 6 dB with DC block
9. 6D - 6 dB with DC block

Perfect to use together with nanovna-f-v2-stand-and-storage by werner_rh.

Print

There are three alternatives to print:

1. Print the STL with Basic PLA in single color
   1. Add color yourself if you like, print with text down for nicest result
2. Print 3MF that has already been colored by me
3. You want different text, open the attached FreeCAD model and change text, then export to STL and continue with 1.

It looks nicer if you print on textured plate. I printed with support because of tight fit.

First time it is a little struggle to enter the attenuators but it gets easier after that. Depending on the accuracy of your printer you may want to print with more margin, then update the model file.

Version

• v1, 2024-03-27 first try

TODO: Make separate 3MF file for calibration standards - ask me if you want it quick!