Originally Posted by greghile
Mike, I just bought the MP IIIPV2 and have been having trouble getting it levelled and calibrated. I'm printing a gravestone that has turned out successfully on two other printers, so I don't think it is the design. The problem is keeping the object from moving while printing.
Anyways, your stuff looks great and gives me hope for my own eventual success!
Well my printer came with the Y axis rods completely out of their front support brackets. Was impossible to level. I turned the printer on it's back and saw the set screws were way loose like they were never tightened. Once I set the Y rods securely, I was able to level.
What worked best for me was to adjust the table so that a card "barely" makes it under the nozzle with much resistance. Rinse and repeat several times using all four corners.
Also, I don't have a heated table, so I use a wide blue painters tape (masking tape) and covered the table. Then I use Isopropyl alcohol to wipe the top of the tape. The glue stick just made a mess of the table, so I don't use adhesive, just the tape.. I can sometimes pry the print off the tape with the putty knife without damaging the tape. If it doesn't come off (or you mess up the tape), you can lift the tape and peal the print off. Then I re-tape the table.
Heating my nozzle to 200° did the trick for me.
Oh yeah, using a brim (or raft) helps and support when necessary.
Sticking the first layer is key to a good print. Good luck!