In the Hackaday comments, the other main thing I missed listing was magnification, either desk-mounted or head-worn. I've put my visor-magnifier in a place of prominence on my workbench now, shaming me with its glassy gaze for leaving it out.
(especially removing the packing tape and replacing it with Kapton tape to avoid fumes!)
This oven has worked really well for me (as long as you don't overload it and leave plenty of space for airflow).
Also, the Sparkfun 303D hot air rework station is pretty damn good:
On the 3D printer, have you actually used the Original Prusa MINI? I'm in the market for a starter 3D printer and I'm looking for a recommendation from someone who's used one in anger.
I built the Creality Ender 3 Pro. With a few mods it runs very well, and is super cheap (Under £200). Had it for 6+ months. I'm into model steam engines and use it (and a small chinese lathe) for making small parts. Accurate and works well with OctoPrint.
$65 and 6 hours of work. No meters, nor current limiting, but hey, it's accurate and cheap. Manual is https://www.elenco.com/wp-content/uploads/2017/10/XP-720K_RE...
Elenco also makes a pre-assembled version, but what's the fun in that?
Not saying this link is bad for some reason, but more information is better.
Hasn't lead free has been the standard for years, due to safety?
Lead free solder is used for environmental reasons because electronic devices will eventually be disposed of. Since the amount of lead used in one person's projects is minimal, it only matters in mass production or when RoHS is required by customers, regulatory agencies etc.
Leaded solder is so much easier to work with I wouldn't use lead-free it unless I was required to.
This stuff is pretty nice, I use it all the time:
mm. most of the leaded solder I've used has a bunch of warnings on it about washing your hands after using it before eating or smoking (most of my leaded solder usage was during a time when smoking was more common in the US)
Lead is a pretty soft metal; there are ways it can get into your system besides vaporization. And it's toxic in an extremely scary way; neurological damage is scarier than lung cancer, if you ask me.
Personally, if there were kids in the house I absolutely wouldn't ever use leaded solder. I mean, sure, if it's only you and you are careful and your stuff is in a case or otherwise not handled, maybe it's fine, but it's a very soft, reactive, toxic metal that can cause neurological damage, especially to children. There are a lot of reasons to avoid it.
I'm not sure this is true. I'm entirely certain that some of the lead manages to get away from the place you're soldering. There's no guarantee that it won't end up on your hands or clothes and eventually in your food.
Granted the risk is probably infinitesimal, but modern lead-free solder is barely any harder to work with than classic leaded solders. If you set your soldering iron a smidge hotter you'll barely notice.
That said I use lead-free solder and still make a point of washing my hands after soldering. Solder has a distinct smell when used so something is getting in the air, let alone on my hands.
Guessing the smell is from the rosin core burning off?
That said from an exposure hazard standpoint I'm far more cautious about flux than lead. Just using lead-free solder doesn't mean your whole process is safe.