Approximately a year ago I finally spent the money and bought a 3D printer. My main motivation was that I don’t have a workshop, and therefore I was not able to do even small mechanical things. I decided for the Creality Enders 3 Pro, as this printer has a large community, and it is easy to find tutorials and tons of other information on the web.
For the CAD program I ended up with Blender. It might sound like an overkill, but it’s open source and runs under Windows, Linux and Mac. Blender was the main hurdle, to get active with own designs, as it took quite a while to get familiar with the program using it for precision design.
From then onward, I have realized so many things using the 3D printer, and I can no longer imagine the hobby without this tool. Most items are printed with PETG.
Balun 1:9 housing 
Balun 1:9 housing 
Bias Tee 
Bias Tee for active loop 
Holder for VHF/UHF log per 
Pulley 
Drill press for my Dremel *) 
Clamps for my active loop 
Cap and holder for Micro Whip 
Tube and rod cutter *) 
Az/El rotator unit 
Stand for FT-60 *) 
My first design in Blender 
Creality Enders 3 Pro
Links
Drill press: https://www.thingiverse.com/thing:1642711/files
Rod and pipe cutter: https://www.thingiverse.com/thing:3323294
FT-60 radio mount: https://www.thingiverse.com/thing:979456