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supermerill / SuperSlicer

G-code generator for 3D printers (Prusa, Voron, Creality, etc.)
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rear positioned seam looks huge #812

Open delious87 opened 3 years ago

delious87 commented 3 years ago

Version

2.2.53

Operating system type + version

Win7 64 bit

3D printer brand / version + firmware version (if known)

ZAV-MAX-PRO with Lerdge-K firmware 4.2.0

Behavior

100100100 hollow cube sliced with rear seam prints with the giant seam because the X position not the same after layer change.

There is g-code example from the middle of the print:

G1 X150.060 Y149.760 E1.80626 ; stop printing object 20mmcube.stl id:0 copy 0 G1 Z5.600000 F9000.000 ; printing object 20mmcube.stl id:0 copy 0 G1 X150.000 Y149.760 G1 F2400.000 G1 X100.240 Y149.760 E1.80844 G1 X100.240 Y50.240 E3.61689 G1 X199.760 Y50.240 E3.61689 G1 X199.760 Y149.760 E3.61689 G1 X150.060 Y149.760 E1.80626 ; stop printing object 20mmcube.stl id:0 copy 0 G1 Z5.800000 F9000.000 ; printing object 20mmcube.stl id:0 copy 0 G1 X150.000 Y149.760 G1 F2400.000 G1 X100.240 Y149.760 E1.80844 G1 X100.240 Y50.240 E3.61689

When i choose aligned seam the X position is the same after layer change.

SimonQuvang commented 8 months ago

Project file not provided, so impossible to check the settings. However the X position difference is used to have a bit of overlap between the start and and the end of the line (0.060 mm as I understand). After layer change it starts at X150.000 and then ends at X150.060. Then it changes layer and starts at X150.000 again.

However it is very curious that the x should then be the same for aligned.

Not sure if this issue should be kept since it's old and no project file was supplied @supermerill

supermerill commented 7 months ago

There is always a gap for the seam, the seam position doesn't impact that. Even with "aligned seam" you should see a gap (maybe in y? i don't knwo, i don't have your project) But you can change it via the seam_gap setting.

However the X position difference is used to have a bit of overlap between the start and and the end of the line (0.060 mm as I understand)

yes, thre is a little gap to let the seam ooze a very little bit, to also prevent overextrusion at the seam. Adjustable via seam_gap setting.