I haven’t updated my 3D printing page for a while so this page has my latest thoughts on the subject:
These days, I mainly print using FDM on a Diggro Alpha-3 printer (bought on amazon). It is one of the zillion Creality Ender-alikes with some nice features (particularly the touchscreen control panel and end-of-filament detection). It produces high quality prints (about 10mil accuracy).
I’m partial to Monoprice PLA+ filament these days. It mixes some TPU into the PLA to produce very nice, very reliable results (see various filaments and their characteristics here). I use a 50C bed, 205C nozzle, and no cooling fan. I print directly on glass with Aquanet Super Extra Hold hair spray for adhesion (cheap, effective, smells nice).
If filament has been out for more than a few days, I still dry it in a food dehydrator (which works really well). I store it in a 5-gallon bucket with silica-gel kitty litter at the bottom and a screw top that seals the bucket but makes it easy to open.
Good prints require the bed be leveled and the nozzle properly gapped; I use a post-it note for the gap width.