This is a thread to share info. What printer(s) do you have? How well does it work? upgrades/improvements you've made? Final thoughts and whether you'd recommend it to someone else. To start the discussion, I'll feature my printer. It's a basic Prusa i3, acrylic-framed, Chinese kit that sells for around $300 on Ebay. I've been operating it for a little over a year now. One of the things I really don't like about this printer (and similar ones like it) is the acrylic frame and assemblies. While cheap and easy to laser cut, acrylic is brittle and cracks easily, not a good choice for structural parts. Another thing I was displeased with on this printer was the very loose tolerances on holes for the linear shafts. This caused a lot of play in the system. Some soda can shims improved the rigidity significantly. One thing I replaced, but wasn't having issues with, was the helical-cut flex couplers on the Z-axis lead screws. These have reportedly been a major cause of banding on some printers. I wasn't having issues, but decided to replace them anyway. I printed a replacement X-axis carriage because the provided acrylic one felt fragile and I didn't want to have it break and not be able to print a replacement. Also replaced the garbage hotend with a E3d v6 all metal hotend. Love it! One of the better upgrades I done to the printer. Here is probably the best upgrades I've made to this printer. Replacing the poorly made heated bed that came with the printer to a Mk3 bed, and installing a PEI sheet. I had to replace the heated bed because the original has something funky going on with the solder terminals and the wires just wouldn't stay soldered on. I was having great success using a glue stick on the aluminum bed, but I really didn't like the rough surface that came with it. So I switched to PEI and now I have great adhesion and nice smooth first layers. I'm happy. One of the things that's been plaguing me with this printer is the poor linear bearing quality. They are starting to wear out and beginning to have a lot of play. In fact, that's why you see those rubber bands stretching down to the hotend. They are to provide a constant tension on the bearing to help combat the free movement. Not sure there is much more to say about this printer. The assembly video that came with it was very nice. Made assembly easy. Came with all the tools for assembly. One part did come broken and the Ebay seller did replace it, but it took about two months of conversing and waiting on packages to get it replaced. All in all, my experience with this printer has been mostly positive. There are times that I've been totally frustrated with it and had to walk away for a while, but it is still running, which is a plus. I'll say the print quality isn't great by any means due to a fair amount of slop, but I have gotten some pretty good prints off of it nonetheless. I don't think I could recommend this printer to somebody. The amount of time and work I've put into it to get it working well and the amount of upgrades needed doesn't really lend itself as a printer for just anybody. If you like taking a turd and turning it into a decent machine, then this might be the printer for you, but I doubt many of you are like that.