Sounds bad but not, more me. Bought 2 sv07s the first one I got at least 25 really good prints, I am teaching myself so I have messed up but this was manufacturing. I left my shop with a small amount done on a print but printing; when I came back 2 screws had fallen out. The Air diverter fell and got wedged between the print table and the diverter not much was left of Extruder. So I ordered a new Extruder, good customer service; shipping is a little slow but free. Put on new Extruder works awesome. Got both machines printing right now. I feel really lucky For the money I got a steal. The Extruder was so easy to replace, really good quality too which really helps when your me!