Hey everyone! I recently purchased a Wanhao duplicator i3 v 2.1, and I have a problem with the bed level. I can adjust all of the thumb screws in each of the 4 corners to level the bed to the correct height when the nozzle is in any of the corners of the bed. However, if I move the nozzle to the center of the bed after this leveling process, then it is too close and hits the bed. So I can adjust it so that it is the correct height in the center of the bed, but then the nozzle if just too far from the bed as it leaves the center. I guess my aluminium build plate could be warped? Anyone have this happen to them, or know a fix? Thanks, Eric
3dmigo
2
I have the i3 Plus and it seems to me the bed is slightly warped. I can’t get a perfect bed level. Also, the print head runs into the screws since they aren’t countersunk. I’ll be upgrading the printbed on mine to one that will hopefully be perfectly flat and has countersunk bolts.
You may have to adjust the Z endstop of endstop metal tab (very carefully) so that it stops a little higher above the bed and then loose in the bed screws so that it’s not rest as much. Over tightening the beds ruse causes the bed to warp and makes bed leaving harder. You may also have to adjust the Y rods if they’re not parallel. See http://3dprinterwiki.info for more tips
Hey,
i had had the same issue. To resolve I stripped off the black buildtak or whatever you want to call it and replaced with neatly lined painters tape. Glass bed on top solves all issues.
Eric glass bed and aquanet hairspray! Do jetguy blueprinting process asap. Mods i recomend are adjustable z-switch and zbrace mod…
I have had my V2.1 for a few months now, and I have a similar problem. I measured my bed, and it turns out that for me, the bed is bowed. It is about .25mm lower in the center. I do not know how to fix this, but for you, I would suggest putting your nozzle at a midpoint between the center and the screws when you level your bed. It won’t be perfect, but if you can print with either a Brim or a Raft, it should be fine. If you are printing smaller objects, place them in the corner (or where ever is most level) in your slicer before you print. You should also try raising you Z axis to max (~180mm), turn off the printer, and manually rotating the Z axis motors so both sides are touching against the top of the machine. You can also try replacing your Buildtak (the printer should have come with a few spare sheets). It could be that the aluminum is level, but the Buildtak was applied incorrectly.
Hey man thanks for the advice. Yeah I tried moving the z axis switch up, to lower the pressure on the bed, but I think the damage is already done as it is still warped. I will check the alignment of the y axis next though.
Ok cool, yeah I am definetley going to try using glass, and see if that fixes the problem.
Yeah I’m going to try a glass bed and see what that does! Just finished the z brace mod. 
Ok, thanks for the advice. My bed seems to be the opposite, where the centre is too close and the edges are too low. I have been able to print small objects with a raft, so it’s not too big of a problem. I might try replacing the build tak and see what that does. If that doesn’t work, then I’m going to replace the bed and put a glass piece on top.
