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I was getting the same triangle issue with my Ender 3 Pro and BLTouch. I wasn't able to remove the triangle movement completely, but I do have a workaround. First of all, I bought my printer less than a month ago to make face shield visors for local nursing homes and other facilities that are sorely lacking in PPE. I'm a complete and total newb when it comes to 3D printing, so please cut me some slack if I have a bit of gcode out of place. I am, however a 47 year old network engineer and consultant, was the IT Director for a chain of medical facilities, and I've been writing code since I was 9 (back when computers weren't so common and dinosaurs roamed the Earth), so it wasn't terribly hard to work out. That being said, I already have another printer on the way; so when production slows down, I might be able to use these things to make rpg figures and terrain for my son and other fun stuff. Maybe even a side gig. Anyway, sorry for the life story.
This is my current setup. I joined the forum to post it, so I hope it helps someone...
; Ender 3 Custom Start G-code
G92 E0 ; Reset Extruder
G28 ; Home all axes
G29 ; BLTouch do full bed level
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
; Double stacked purge line with Marlin triangle fakeout
G1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position
G1 X0.1 Y200.0 Z0.3 F1500.0 E0 ; Draw no line (this will let the triangle finish without drawing)
G1 X0.1 Y20 Z0.3 F5000.0 ; Return to start position
G1 X0.1 Y200.0 Z0.3 F1500.0 E30 ; Draw the first line
G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little
G1 X0.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line
G1 X0.4 Y20 Z0.6 F5000.0 ; Move back and up a little
G1 X0.4 Y200.0 Z0.6 F1500.0 E30 ; Draw a third line
G1 X0.1 Y200 Z0.6 F5000.0 ; Move to side a little
G1 X0.1 Y20.0 Z0.6 F1500.0 E30 ; Draw a fourth line
G92 E0 ; Reset Extruder
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
G1 X5 Y20 Z0.3 F5000.0 ; Move over to prevent blob squish (wipe nozzle)
How do I turn off this initial triangle?
in UltiMaker Cura
Posted · Edited by netseam
Hi guys,
I was getting the same triangle issue with my Ender 3 Pro and BLTouch. I wasn't able to remove the triangle movement completely, but I do have a workaround. First of all, I bought my printer less than a month ago to make face shield visors for local nursing homes and other facilities that are sorely lacking in PPE. I'm a complete and total newb when it comes to 3D printing, so please cut me some slack if I have a bit of gcode out of place. I am, however a 47 year old network engineer and consultant, was the IT Director for a chain of medical facilities, and I've been writing code since I was 9 (back when computers weren't so common and dinosaurs roamed the Earth), so it wasn't terribly hard to work out. That being said, I already have another printer on the way; so when production slows down, I might be able to use these things to make rpg figures and terrain for my son and other fun stuff. Maybe even a side gig. Anyway, sorry for the life story.
This is my current setup. I joined the forum to post it, so I hope it helps someone...
; Ender 3 Custom Start G-code
G92 E0 ; Reset Extruder
G28 ; Home all axes
G29 ; BLTouch do full bed level
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
; Double stacked purge line with Marlin triangle fakeout
G1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position
G1 X0.1 Y200.0 Z0.3 F1500.0 E0 ; Draw no line (this will let the triangle finish without drawing)
G1 X0.1 Y20 Z0.3 F5000.0 ; Return to start position
G1 X0.1 Y200.0 Z0.3 F1500.0 E30 ; Draw the first line
G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little
G1 X0.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line
G1 X0.4 Y20 Z0.6 F5000.0 ; Move back and up a little
G1 X0.4 Y200.0 Z0.6 F1500.0 E30 ; Draw a third line
G1 X0.1 Y200 Z0.6 F5000.0 ; Move to side a little
G1 X0.1 Y20.0 Z0.6 F1500.0 E30 ; Draw a fourth line
G92 E0 ; Reset Extruder
G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed
G1 X5 Y20 Z0.3 F5000.0 ; Move over to prevent blob squish (wipe nozzle)