DOWELL DM10 3d printer

hi, have someone experience with this device ? I really can’t make it print and the producer refuse to send me a manual, to be specific the main problem is the alignment and levelling off the bed that should be automatic, but the had or smash in to the plate or try to print 5 cm from the bad, any advice?

I brought a very large printer from these guys. I would not recommend buying from them, their parts are the cheapest possible, their customer service is appauling: if they dont know the answer to something they just ignore you. If they do know they send you instructions that are impossible to follow.