Thanks to this reflector I’ve now sunk a few quid in to (and got heavily addicted to) 3D printing.
Thanks for that. 
One of the first things I saw to build was the impressive-looking DL2MAN Moxon (based on another design that was only available to buy) for (the world’s two favourite bands) my beloved 270. It looked a fairly easy-ish build, so I decided to give it a go and finally got to test it out today. Here’s how I got on.
The print process is fairly straightforward. DL2MAN has it up on the Prusa Printable catalogue, but the STL’s can be imported and sliced in Bambu Studio. I use the Linux version, if that makes any difference - I doubt it, but I thought to mention it anyway just in case.
I have a Bambu P1S with AMS (which isn’t needed here but is a nice to have add-on) and printed the 70cm Moxon first, followed by all of the antenna parts on the same plate. It didn’t take long to print and at that point it was just a matter of sourcing the other parts - namely some 10mm PVC pipes (2 x 1m), an SMA and a BNC connector, some wire (22 AWG) and some zip ties.
Yer man has an assembly video on YouTube so I won’t go through that part as it’s already well documented there. I will add though the BNC soldering is a little fiddly as space is at a premium. Other than that it’s a fairly painless assembly process.
Here is my DL2MAN 270 Moxon folded up. I found an old pouch containing one of those corkscrew dog leash posts - I bought one to use for a kite antenna project I still haven’t gotten round to - the kite is still new in the box unopened!
The antenna is super lightweight and fits on to my 7m Wimo mast no problem. The antenna adaptor I found separately on Printables which saved me using DL2MAN’s template to make my own.
I took the mast, the 270 Moxon and my FT65 (I forgot to bring my FT60) to my favourite POTA spot IE-0136 and tried calling for a signal report on the 2m Dublin City repeater…
** drumroll **
I broke squelch (a good start) and after my over I got a signal report straight back. Amazingly it was from someone I knew offline, a very good friend, who was enjoying using his new handheld he bought recently. What a coincidence!
599++ all copied both ways. Fantastic for both of us!
I did try a QSY to 145.500 but nothing heard. The Moxon is directional so I tried a mast rotate but nothing alas. Not to worry. I then tried 70cm but I couldn’t even break squelch on my usual repeater which I can break squelch on with the Diamond RH770. Note in the photo only the 2 meter part is shown and with the mast not put up yet, it’s just to demonstrate how it looks mounted on it.
I think there is a problem with the 70cm part of the antenna. When I tested it on Nano VNA (my Rigexpert doesn’t go as high as VHF or UHF alas but the Nano does a great job so saved a few quid there), the SWR was reading about 3.1 which is far too high. I have read in some places that the 70cm SWR is an issue but I’m not quite sure how to rectify it. Snip some wire off and tighten it up more? I’m unsure.
I did take a couple of (point in time) screenshots(see below) of the 2 meter SWR which is pretty nice. Nothing serious, just put it up the living room to do a quick SWR check. Getting around 1.5 to 1.7 SWR and fairly broad across the 2 meter band as a whole, particularly on 2 meter CW which is where I want to use this primarily. Good news!
Would I take this on a SOTA? I’m not so sure. I had some adapters weighing the front end down which didn’t help and it felt a smidge precarious. With a single cable between HT/Radio and antenna it should be fine, it just means you’ll have to make one up or spend a few quid on a prefab. I just used what I had for now to see if the antenna actually worked.
For POTA, BOTA (Beaches) and so on, so long as it is mast-friendly weather I’d say go for it. Or better yet, stick it on some sort of tripod setup of sorts? For 2 meters, I think this antenna is a winner. For 70cm I think work needs doing, but it should hopefully be an easy enough fix to get the SWR down.
Delighted to have built my first Moxon. All I’ve built before are random wire antennas. Really chuffed!
Now for some bad news. It is with great sorrow that I have to report my beloved 7p Ali Express Special multimeter shat itself and died during the building of this antenna. It was in such a state that one of its probes decided to detach itself from the rest of the multimeter and roll off my desk, landing on the floor - without me even touching it or being near it! Go figure!
7p Ali Express Multimeter. 2024-2025. RIP. 
73 DE EI3LH