I've had more downtime with this heavy paper weight then I've had of use. First the belt, then the cover over the chuck, now the lead screw broke when I was assembling after advised to disassemble to make sure everything was tight as the y axis would reverse when trying to feed with the micro y axis. I should have returned it when I had the chance. Save up and buy a reputable brand. Seems like others have had a better experience than I have. Glad for them, I regret buying this for sure.