evanboothe wrote:carl_m1968 wrote:evanboothe wrote:Does travel speed look okay?
What about g code start and end what should I be putting in there.
Travel speed is fine. It does not affect print quality as it is only moves that are made while not printing.
The START and END Gcode depends on what you want to happen. The START usually puts the nozzle at a certain z above the bed if needed. This is where your offset is put. It may turn on a fan as well.
The END is where you would put homing commands and turning off the heaters and such. If you put nothing here the print will just stop with the nozzle in contact with the print and still heating when it ends. This is where most add the command to move the bed to the bottom as well to make removal of the print easier.
If you list exactly what you want in START and END we can then make the commands and format to put in to those boxes.
I’d like the layer fan to kick on after the first 3 layers. And for the nozzle to make a purge line before the print. Then home and drop the bed at end of the print also shutting off the heater and shutting the layer fan off.
I am at work right now. Will be getting off in about 30 minutes. Once I get home I can get my START and END gcodes from Simplify3D. They do most of what you want. The layer fan is controlled by the host.
I will have to look at Repetier when I get home as well to see how to implement that with your setup. I need to find out anyways as my upgrade will have a layer fan as well. Although mine will be done with Simplify3D.
Ok so Repetier only allows control of one fan and that is the fan they consider a layer fan. However it only controls the speed and does not allow as far as I can see for that speed to change at a certain point or layer.
I have not used Repetier in ages since a good soul here gave me a copy of the older liberated version of Simplify3D. It is missing profiles and support, as well as no support for dual head but I can live with that. With S3D you can set it to cause all kinds of things to happen at various layers. Fan on, fan off, print speed changes, even change the infill types at a certain point if you want.
As for START gcode, this is mine:
G28 ; home all axes
G1 Z2 F1000 ; position Z axis 2mm above home.
And this is my END Gcode:
M104 S0 ; turn off extruder
M140 S0 ; turn off bed
G28 X Y ; home X and Y axes
G1 Z150 F1000 ; move Z to 150
M84 ; disable motors
For your layer fan, so it only runs during printing you can add M106 to turn the fan on to the START and add M107 to turn the fan off to the END.
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