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.
Primary: Artillery Sidewinder X1, absolutely stock except for parts that needed replacement but even those are just part swap, no upgrades or mods.
Secondary: MP Select mini Frame and some motors. The board is the motherboard form a Tronxy X5S. the bed is a manual replacement from an off brand and it has an off the shelf 12 V 300W PSU.