Print finish parking position
Why oh why does the head go to the right rear when finished printing? Means reaching in to remove the dangling length of filament and if you don't catch it when it's hot it snaps off leaving a bit sticking out. It's more difficult to clean nozzle back there than at the front right. Is there an option to park at front, if not can we have one?
RE: Print finish parking position
It used to be front left, then it was noticed the view from Core One camera was obscured.
just change this line in End G-Code to wherever you want it:
G1 X242 Y211 F10200 ; park
RE: Print finish parking position
Yea heard that - why didn't they make it front right instead? I did try to alter it previously and it reverted to back again for some reason. Just changed it again, will see what happens next time I restart.
RE: Print finish parking position
Because the gantry will obscure the camera's view of the finished print.
RE: Print finish parking position
Yea - get that, doesn't bother me as I don't normally use it. I do have a small esp32-s3 sense that will fit at the rear without interfering with anything IF I can get it to remember it's settings after flashing and not using for a day or two. Just another problem I need to fix but it's a low priority for me.
RE: Print finish parking position
@steve-33
The g-code line described above is a "per printer" change and must be saved as a custom printer in order to be re-used as the g-code is only inserted into your file at the time of slicing. I have personally created several custom printers (for different nozzle sizes/types, single extruder multi-material, etc...) with custom g-code which I then select based upon the model that I am printing. I have added custom g-code for parking that lowers the build plate 100mm from the finish position (or max, whichever is less) in order to more easily remove the build plate post printing.
Regards,
Steve
RE: Print finish parking position
Unfortunately just changing park line in custom Gcode doesn't work, it moves to Y-11 waits for a second or two then goes to back right corner to clean nozzle, retract and stays there? I cant find that end, clean, purge retract command position anywhere?
G1 X242 Y-11 F10200 ; park
GG4 ; wait
M572 S0 ; reset PA
M84 X Y E
; disable motors; max_layer_z = [max_layer_z]
RE: Print finish parking position
Probably baked into the firmware then.
RE: Print finish parking position
Just noticed that it must be a custom printer, I hadn't done that. I have now and will retry
RE: Print finish parking position
Looks like it - tried several things but no joy as yet.
RE: Print finish parking position
@steve-33,
I take from your last post that you have still not been successful changing the parking position? Just for the sake of experimentation I replaced the end g-code line in my printer profile custom g-code with exactly the same line above (G1 X242 Y-11 F10200 ; park) and it worked exactly as expected with the print head parking at the front right corner of the machine, retracting filament and turning off the X Y and E motors. Did you perhaps inadvertently leave the original line in the g-code? If not, you may want to contact Prusa technical support via the chat function as there would appear to be something strange going on with your printer.
Regards,
Steve
RE:
Did you perhaps inadvertently leave the original line in the g-code? If not, you may want to contact Prusa technical support via the chat function as there would appear to be something strange going on with your printer.
One thing I was told when I was chatting with a tech support person is they are not allowed to discuss g-code modifications. I assume that is so Prusa won’t be held responsible if you damage your printer. Even if it involves fixing a bug like the g-code fix for the load cell grounding issue. They will point you to a relevant forum thread instead.
RE: Print finish parking position
No - original line removed and replaced with G1 X242 Y-11 F10200 ; park Weird that it goes there pauses then moves to back right corner to do the purge and retract bits before powering off. Can't tell what the lines in the output bgcode is as it's compressed but converting to ascii via Prusa Gcode Viewer on a local save it is using the Y-11 part. I'm wondering if its something to do with annoying Onedrive that hasn't picked up the local change and slicer is looking at old stuff - will have to have a look.
RE: Print finish parking position
No - original line removed and replaced with G1 X242 Y-11 F10200 ; park Weird that it goes there pauses then moves to back right corner to do the purge and retract bits before powering off. Can't tell what the lines in the output bgcode is as it's compressed but converting to ascii via Prusa Gcode Viewer on a local save it is using the Y-11 part. I'm wondering if its something to do with annoying Onedrive that hasn't picked up the local change and slicer is looking at old stuff - will have to have a look.
You can just disable binary gcode in prusaslicer, and only ascii gcode will be used. Then you can see whats actually being sent to the printer.
RE: Print finish parking position
It is posting the Y-11 and I've no idea whatsoever why it's doing the move and purge. I'll do a chat with support when it's quiet and the queue isn't long and see if they can help.
RE: Print finish parking position
Just one more question, when you say "purge" are you talking about the small bit of filament extruded when the "ramming" and retraction operation happens at the end of a print or something more substantial?
While mine worked just fine with Y-11 (and I would assume yours should as well) have you tried changing it to Y0 (or some small positive number?
Regards,
Steve
RE: Print finish parking position
Yea the dangly bit it leaves hanging at the end of a print. I'll try Y0 but I don't think it will make any difference as some of the stock start gcodes have negative numbers and work fine. Tried a chat earlier 35m wait I'll try early in morning around 8 or 9am Prusa's local time.
RE: Print finish parking position
I did try setting to small positive number, it goes there, pauses then moves to right rear to do the purge and stays there.
I did manage to contract support who flatly refused to help, against the rules crap. I explained I am partially disabled and find it very difficult to reach into the back corner to no avail! So much for their compliance to EU disability legislation! I will put a request on github to make front an option but if no response to that we always have the option to pull it apart and return it to a 4s!!
RE: Print finish parking position
I did manage to contract support who flatly refused to help, against the rules crap. I explained I am partially disabled and find it very difficult to reach into the back corner to no avail! So much for their compliance to EU disability legislation! I will put a request on github to make front an option but if no response to that we always have the option to pull it apart and return it to a 4s!!
It’s against their rules/policy to discuss g-code changes which is frankly odd but, if I were to guess, it probably has to do with an errant g-code potentially damaging the printer?
RE: Print finish parking position
@steve-33,
It might be time to upload a .3mf (zipped of course) for others to look at. As far as I can tell only the filament retraction at the end of the print is firmware controlled. I have successfully parked my print head in random locations just by editing that one line. It has worked every time without fail so I am left to wonder if there is something else hiding in your configuration that is relocating the printhead for you.
Regards,
Steve