Here's one I will put on the list, but will post the G-code here:
There's some weird code which caused the nozzle to go walkabout at a layer change:
Code: Select all
; 'Destring/Wipe/Jump Path', 0.0 [feed mm/s], 100.0 [head mm/s]
; 'Destring Suck'
G1 E-0.8 F2100
; head speed 100.000000, filament speed 0.000000, preload 0.000000
; Prepare for End-Of-Layer
G1 X90.591 Y113.388 Z1.5 E0 F720
;
; 'Travel Path', 0.0 [feed mm/s], 200.0 [head mm/s]
G1 X90.493 Y113.485 E0 F12000
; head speed 200.000000, filament speed 0.000000, preload 0.000000
G1 X93.725 Y112.637 E0
G1 X100.393 Y112.637 E0
G1 X101.241 Y112.354 E0
G1 X118.777 Y112.354 E0
G1 X119.626 Y112.071 E0
G1 X124.123 Y110.646 E0
G1 X127.174 Y110.374 E0
G1 X132.071 Y110.374 E0
G1 X132.92 Y110.091 E0
G1 X173.932 Y96.515 E0
G1 X175.063 Y96.232 E0
; time estimate: pre = 46.169674, post = 104.327133
; Dwell time remaining = -103.327133
;
; Post-layer lift
G1 X175.063 Y96.232 Z1.7 E0 F720
; END_LAYER_OBJECT z=1.000
; BEGIN_LAYER_OBJECT z=1.200 z_thickness=0.200
;
; 'Loop Path', 2.5 [feed mm/s], 75.0 [head mm/s]
G1 X94.738 Y112.214 Z1.2 E0 F12000
; 'Destring Prime'
G1 E0.8 F2100
; head speed 75.000000, filament speed 2.494511, preload 0.183347
G1 X94.681 Y112.257 E0.08229 F1132.5
G1 X94.509 Y112.384 E0.07334 F3128.9
G1 X94.223 Y112.596 E0.03227 F4246.4
G1 X93.823 Y112.893 E0.01657 F4500
Printing at about X=90, then goes waltzing off to 175 and back... This is with a 4 filament (SNMM) print.
Seems to happen also at the end of that extruder's path before moving to the purge tower.
Ah, I think I see what's happening; it's going to the start of the next extruder's path before moving to the tower and this is happening at every tool change.
Peter