Currently using a FLSUN Super racer. It’s a delta style printer and fast as hell compared to the printers I had before. 400 hours on it currently.
Had a Ender 3 before it. Lots of issues. Ended up giving it away to a friend who still uses it and still has random issues.
First printer was a Printrbot Simple Metal. Bought one the moment a heated bed was a option. Great printer for the time, but dated now. Keep thinking about resurrecting it to print flexibles on of these days.
Yes, I make some money but barely enough to be worth it.
I sell some specially fixturing to my work. Sell them $30-50 each. Sold a dozen or so over the last 7 years and 3 printers.
Started selling on Etsy about a year ago and Xmas I made a decent amount very fast(about $500 in a month). After the new year it dropped to near nothing until recently I’m getting some sells. Everything I sold was my own designs, but it’s a race to the bottom on there. Far to many people stealing from Thingiverse and selling at a near loss. After Etsy takes its cut which can be a decent chunk your left with near nothing after materials and shipping. Expect $2 to $3 a hour of print time. I am barely in profit to be honest selling there.