This is not redneck engineering, it’s how evening is attached to walls in the US as far as I can see. An ugly hole in drywall, and cover the rough edges with trim. I’m not sure what else you are looking for.

Something outside the wall could use minimal wood working and nails or command strips.

You mention you like picture frame mounts, so why don’t you use picture frames? You can get some used stuff for very cheap at Goodwill. Or get wood trim at home depot and cut to size.

Anything that’s not visible gets the glue gun treatment.

Ooh, now I want to label SAE stuff as standard and metric as standarder.

I love that “standard” means non-standard. I only have metric nuts and bolts, I use them for 3D printed stuff, car and bikes, and I have imperial screws and wrenches for wood working and car. I think my car is all metric, but it just felt safe to get a dual kit.

You may want to look at the other reply to my post, they mentioned that a part that breaks should still be food safe. I don’t work in the food industry, I’m just a 3D printer nerd, so I wouldn’t know about things like that, I just wanted to make stuff for my own use.

I’m outdated as far as printer options, Prusa makes good printers without going into the really expensive enterprise tier, so that’s where I would look.

That makes sense, thank you for pointing it out! I can’t see plastic 3D printed parts complying with that.

I’m the past there were hot ends (the print head) that may contain lead, so there is also that to consider.

The solution I read about in the past was to coat the part at the end with something food safe, like glazing for ceramics.

Of course you have to be careful about cleaning these plastics, PLA can’t handle dishwasher temperatures.

Don’t use wifi smart stuff. My house uses zigbee, so you have to be physically close to interact in any way. That really narrows down bad actors.