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dieter.v
(@dieter-v)
New Member
Start line disappeared?

Hi. I have the mk2 for about 1 month now. Very satisfied with it.

But since a couple of days the behaviour of printing just changed. Normally when I started a print, the nozzle went home, extruded a thick line of about 7 cm in the front left corner and then started the print.

I doesn't do that anymore. It directly starts with the print, which occasionally gives issues with the first layer ...

Why is the startline gone? is it a setting? I'm quite sure I didn't change any settings (but could be mistaken)

thnx

Posted : 03/08/2016 7:54 am
David T.
(@david-t)
Noble Member
Re: Start line disappeared?

It's set in start gcode snippet of slicer. What slicer do you use?

Posted : 03/08/2016 9:49 am
dieter.v
(@dieter-v)
New Member
Topic starter answered:
Re: Start line disappeared?

Slic3r - Could you tell me what should be there?

Posted : 03/08/2016 10:06 am
David T.
(@david-t)
Noble Member
Re: Start line disappeared?

Do you use Slic3r which come as part of 1.7.3 drivers installation? If yes, did you modify the settings?
Original start gcode:
M83 ; extruder relative mode
M104 S[first_layer_temperature] ; set extruder temp
M140 S[first_layer_bed_temperature] ; set bed temp
M190 S[first_layer_bed_temperature] ; wait for bed temp
M109 S[first_layer_temperature] ; wait for extruder temp
G28 W ; home all without mesh bed level
G80 ; mesh bed leveling
G1 Y-3.0 F1000.0 ; go outside pritn area
G1 X60.0 E9.0 F1000.0 ; intro line
G1 X100.0 E12.5 F1000.0 ; intro line

Posted : 03/08/2016 10:26 am
dieter.v
(@dieter-v)
New Member
Topic starter answered:
Re: Start line disappeared?

Yest I do use slic3r from the driver installation. Only thing I change once was add a rim for a model with a small base. Maybe I'll just remove it and reinstall this evening.

Posted : 03/08/2016 10:32 am
christophe.p
(@christophe-p)
Member Moderator
Re: Start line disappeared?

Hi Dieter,

it's possible that you change the active printer profile from "Original Prusa i3 MK2 with ZHop" or "Original Prusa i3 MK2 ColorPrint" to "-default" which does not include the gcode for this initial line.

Instead, the starting gcode just use:

G28 ; home all axes
G1 Z5 F5000 ; lift nozzle

Can you double-check that ?

I'm like Jon Snow, I know nothing.

Posted : 03/08/2016 12:08 pm
dieter.v
(@dieter-v)
New Member
Topic starter answered:
Re: Start line disappeared?

Just got home from work ... and checked .... and I did actually put it on '-default-'. So everything solved.

Tknx very much people ... off to some more printing.

🙂

Posted : 03/08/2016 5:59 pm
Josef Průša
(@josef-prusa)
Member Admin
Re: Start line disappeared?

We need to get rid of the - default Slic3r settings in the source code. They can't be removed. I'll pass it to Vojtech.

Founder and owner / Majitel a zakladatel
Posted : 03/08/2016 7:23 pm
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