Creality CR-10 upgrade

Phaedrux

@agniusm said in Creality CR-10 upgrade:

old school sci-fi.

Care to elaborate?

Agniusm

@phaedrux, not much to elaborate, Aliens, Star Wars, Star trek, Dune etc

I have finished my 24h run of parts and bottom is smooth like baby's bottom. Same run to confirm Z brackets was my issue.

Agniusm

Is it possible to set fan speed on thermostatically controlled fan? I have got powerfull delta fan for hotend incase i need to have it in the box printing high temp pei or peek. Its enough to run it at 40% so can i add parameter S150 to my M106 in config.g for tool fan?

dc42

@agniusm said in Creality CR-10 upgrade:

Is it possible to set fan speed on thermostatically controlled fan? I have got powerfull delta fan for hotend incase i need to have it in the box printing high temp pei or peek. Its enough to run it at 40% so can i add parameter S150 to my M106 in config.g for tool fan?

Yes you can use the M106 S parameter to do that, with a minimum PWM of 0.5.

Agniusm

Tkank you, works great

Agniusm

Is there a gcode to repeat a print? i will be experimenting with conveyor type print remooval and was wandering if there is a gcode to support reprints or is there slicer support for this?

Phaedrux

@agniusm The DWC has a Print Another button, but I'm not sure if that triggers a gcode or just passes a new file print command using the already loaded gcode filename.

I guess you could create a larger macro that just had repeated M32 commands.

https://duet3d.dozuki.com/Wiki/Gcode#Section_M32_Select_file_and_start_SD_print

dc42

@agniusm said in Creality CR-10 upgrade:

Is there a gcode to repeat a print? i will be experimenting with conveyor type print remooval and was wandering if there is a gcode to support reprints or is there slicer support for this?

I have support for conditional and looping GCode planned, which would facilitate repeated prints..

Agniusm

I guess it should be easy to do workaround with end gcode to call macro which would be the print file itself for infinite looping but would be nice to have an option to set how many parts.

Agniusm

@phaedrux M32 sounds good for the time being. With editors such as note++ ot should be easy to make changes

Agniusm

Can someone post content of files needed for "power out" functionality?
Mainly interested in resurrect-prologue.g file.
Does M116 gets temperatures used on that print?
If my M911 command lifts Z by 3mm, should that be undone in resurrect-prologue.g file?
Would it be better to have Z max end stop as well and re-home Z as well and it will most likely do better job not messing up the print? (as gantry may sag)
What else would be good to have in that file?

Phaedrux

In config.g:

; POWER LOSS RECOVERY
;
M911 S21 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-1 F500" 	; Configure automatic saving on power loss

The resurrect.g file gets created automatically by the Duet during a print and contains the temps and position. This is the file you "print" to resume after a powerloss.

; resurrect-prologue.g
; Called by resurrect.g after a resume from powerloss.
G28 XY			; Home X and Y
M98 P"HomeZMax.g"	; Call Home Z Max macro
M116			; Wait for temps
M83			; Relative Extrusion
G1 E2 F1000		; Undo retraction and prime nozzle
; Returns to resurrect.g to resume print

You'll have to test the behaviour of your printer during a power loss to see how the Z axis (gantry or bed) reacts. If it drops, you'll need to home the Z somehow, either manually with G92 Z at a known location, or with Z max.

Agniusm

Thanks. Great, i will try this and see if i need to add a z max endstop.

Agniusm

OK, so the resume works. I don't know why it does not lift the nozzle? I have left retraction to minimum as per your code and i have increased voltage detection to S23V (tried with S21V too), R23.5V. My power supply is at 24.5V dropping to 24.3V occasionally.
Are the fans disables automatically?
What else can i do?
If it would lift a nozzle, i would be golde. 3 out of 4 times there is no visible mark where it resumed except that plastic blob caused by nozzle not lifting up

Phaedrux

@agniusm there may not be enough juice left to raise the head.

I'm not sure off hand if the fans turn off automatically but you could disable them manually by adding an M106 in the M911 command.

Agniusm

I could also put larger output caps on psu as well but that is a bit too much of hacking.

I will try to disable the fans and turn off the retraction. I can deal with that when resuming manually

dc42

Typically the PSU has 3 sets of output terminals, and you use only 1 or 2 of them to connect it to the Duet. You can easily connect a large capacitor between a spare set of output terminals.

Agniusm

@dc42 That'd work. Should should i just go for 60VDC and largest capacity i could salvage? Electrolytic?

dc42

I suggest a few thousand uF rated at 35V.

Agniusm

Thanks.
Off topic question.
I got this effect on my other printer and i would call it rippling. Its not ghosting as its throughout Y axis.
I have tried changing toothed pulley to smooth, gates belt to unbranded one, belt tension, checked rigidity of the frame. I don't know why it runs on Y only as X has the same motion components. It runs on MGW9C knockoffs.
I now have swapped a motor, this had an effect although far less, rippling is still there.
Would microstepping have an effect on this?