I am convinced that my Duplicator 3 (ReplicatorG) is spending too long in once place without allowing the extrusion directly under the head to cool enough before it sticks the next layer on if the item it is printing is small, 20x20mm or so, always under the head.
To see if this is so I am sticking this between each layer
Here it is inline:Quote:
G91 Go to relative mode
G1 Z10 Drop Z 10 mm
G90 Go to absolute mode
G28 X0 Y0 Take the head home
G4 P4000 Wait 4 seconds
The problem here is that after the pause Y is 60 mm or so too far forward. It seems as though HomeY is different before the pause from the value after the pause. The reprap gcode reference isn't helping, I think that the G28 is doing more than just taking the axes home though the reference doesn't say that it does.Quote:
G1 X-20.88 Y1.2 Z0.41 F3510.097 E23.885
G1 F1200.0
G1 E22.885
G1 F3510.097
M103
G91
G1 Z10
G90
G28 X0 Y0
G4 P4000
(</infill>)
(</nestedRing>)
(</rotation>)
;M108 R29.04
(</layer>)
(<operatingLayerEnd> </operatingLayerEnd>)
(<layer> 0.675 )
(<rotation> (6.12323399574e-17+1j) )
(<nestedRing>)
M73 P10 (display progress)
(<boundaryPerimeter>)
(<boundaryPoint> X-30.0 Y0.0 Z0.675 </boundaryPoint>)
(<boundaryPoint> X-20.0 Y0.0 Z0.675 </boundaryPoint>)
(<boundaryPoint> X-20.0 Y10.0 Z0.675 </boundaryPoint>)
(<boundaryPoint> X-30.0 Y10.0 Z0.675 </boundaryPoint>)
(<edge> outer )
G1 X-29.62 Y0.2 Z0.68 F9000.0
Any knowledgeable person can shed some light on this?