Hi all,
I am having a problem to get my 3DR printing flat. I have searched but never found something similar.
I have perfectly calibrated steps/mm and smooth rod radius. So I get the printer to accurately go to 0.1mm over the surface near each of the three towers and in the center of the build plate.
But, I still get this distortion:
![35bh4l0.jpg]( "35bh4l0.jpg")
As you see, the print is correct height near the towers (top, lower right and lower left). But on the bottom it is very squeezed to the build plate, and in the top left and top right the extrusion was going so high that the plastic didn't stick to the plate. Layer height is 0.2mm. So I assume that there is being a variation of more than 0.2mm lower in the bottom and 0.2mm higher in the top left and top right.
I don't know if it could be produced by unequal diagonal rod lengths. It is said everywhere that the rods should be exactly equal length, but, how much is exactly?? I have measured my rods, most of them are equal to +-0.02mm, one is -0.05mm. I don't think this could be the cause, but I'm out of ideas.
Oh, and I have just checked the table flatness with a machinists square and a 0.05mm thickness gauge and it seems to be flat enough.
Any idea anybody?
I am having a problem to get my 3DR printing flat. I have searched but never found something similar.
I have perfectly calibrated steps/mm and smooth rod radius. So I get the printer to accurately go to 0.1mm over the surface near each of the three towers and in the center of the build plate.
But, I still get this distortion:
As you see, the print is correct height near the towers (top, lower right and lower left). But on the bottom it is very squeezed to the build plate, and in the top left and top right the extrusion was going so high that the plastic didn't stick to the plate. Layer height is 0.2mm. So I assume that there is being a variation of more than 0.2mm lower in the bottom and 0.2mm higher in the top left and top right.
I don't know if it could be produced by unequal diagonal rod lengths. It is said everywhere that the rods should be exactly equal length, but, how much is exactly?? I have measured my rods, most of them are equal to +-0.02mm, one is -0.05mm. I don't think this could be the cause, but I'm out of ideas.
Oh, and I have just checked the table flatness with a machinists square and a 0.05mm thickness gauge and it seems to be flat enough.
Any idea anybody?