I thought I would describe my own experience with my Wanhao Duplicator i3.
I was having a terrible time getting any kind of reliability with my printer and placed it aside under a sheet for 2 months while I was distracted with other things. Its was by coincidence I saw a post on a website (Im sorry I can’t remember which) about an accident that a printer used to his advantage. He used BLUE Painters tape to fix his print to the bed but was having trouble with the print sliding off the tape. He accidentally dropped ACETONE onto the blue tape, wiped it off and discovered the best adhering solution.
I decided to fire-up my printer again. I have used the glass front from an IKEA picture frame (225 x 225mm) as a build plate, four standard black clips with specially made clip inserts to keep the clips horizontal on the top side of the plate and now have 100% reliability. I ALWAYS use a raft simply because the raft sticks like a bastard to the blue tape but the model can be easily removed and the raft then can be pulled off.
The printer now requires some modification to stop the harmonic vibration (search for the braces on Thingiverse) but its VERY reliable.
I hope this helps.
