Hello, am new here but not a newbie as such.
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@FuseDeep Yes, it's safer because if a Mosfet failed in a state which left the heater on, cutting power will cut of the heater too. Just be aware that if you do have to resort to using it when the hot end is heated, then you'll likely get a blockage in the heat sink as filament melts where it shouldn't and then solidifies (but you probably know all that).
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Thanks, good point though. In the old days the extruder throat fan was on a permanent 24v/12v feed so never off. May just do that. simplest and zero problems.
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Some terrific results in testing:
This table leg a vase print at 2h26mins
0.8mm nozzle
0.4mm layer height
45mm/sFairly sedate but reliable and very tidy. This print even had a reel change half way through! love that option. A very useful size and speed printer. Handles complex/non vase prints great too.
VIMEO Video
To Do:
Lose long file name nag (not acted on above advice yet)
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Set up full power off restart, resurrect?
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Finalise retract/extruder settings for even better results, especially when travelling between print parts across large bed
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Big red kill switch, in stock and awaiting install.
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make/tidy board, cable and wire runs/mounts
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There is one slight issue, using 2 steppers on one axis works brilliantly, and obviously when powered they are locked electronically in alignment. However sometimes they are unpowered and I sort the filament etc and move the gantry and they, naturally go off alignment...any way to prevent this other than a rodded join? or one stepper and a rod link (like the 2 stepper set up. works very well...just asking.R
PS. I added spring loaded hinged mounts to the print bed corner guide wheels (as the alloy openbeam eqv. has some variation in it). This has transformed bed travel stability and print quality even further, as the original fixed wheels could leave the vertical corner and the bed oscillate laterally!
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Question:
Why do the 3 job print times shown on the screen not match up, and which is useful?
File/Filament/Layer
?
Thanks R
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@FuseDeep said in Hello, am new here but not a newbie as such.:
Question:
Why do the 3 job print times shown on the screen not match up, and which is useful?
File/Filament/Layer
?
Thanks R
There are many ways to estimate something like completion time. The duet uses a few different metrics to estimate when the print may finish. It will be up to you to assess which one is more accurate based on the model being printed.
File time uses the remaining amount of gcode file to be executed. This would be similar to what other firmwares present. If the Gcode file is 100kb and you've executed 50kb worth of commands and there is 50kb left, you're at 50%. This doesn't take into account that some gcode commands take longer to execute than others. If there are many long straight moves, this may underestimate the amount of time left.
The filament estimate uses the length of filament used in total by the print job, and tells you how much you've used up to this point. If the extrusion rate of the job is fairly consistent this estimate may be most correct.
The layer time estimate uses the average layer time and the number of layers remaining to give an estimate. This may be most accurate for things like vases or tall print jobs that have a consistent layer time.
After the first few layers the estimates should start to converge.
DWC2 also shows the slicer estimated time remaining if your slicer supports adding it's own estimate. Personally I find Curas' estimate to be within a few minutes of actual print time.
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Thanks @Phaedrux , a useful roundup.
I think simplify3D is fairly accurate, but tend to forget to check, being busy on other things during a big print. But will endeavour to.
Have not yet tried replacing the long name file offline, not keen on that ut will try it. Seems to be a bug but will see what happens. Adhoc wifi working great though!
I did delete the normal wifi config trigger entry and realised a semi colon prior would have excluded it.
One definite thing I would like to set up is (via a micro switch) filament end of reel then go to pause state with extruder heat off. Assuming resume will wait to restart the heater?
This thread seems to get very complex...(too complex, is there a simple option?)
https://forum.duet3d.com/topic/4952/inputs-for-a-simple-switch-filament-sensor/16
(EDIT) Plus I would really like filament out to trigger a wav file and yellow flashing klaxon A La Alien/s...I might use an adafruit express to do that bit...)
BTW, Whenever I google (almost anything), almost regardless of google result and which forum ,your answer always seems best. Thanks for your general efforts.
R
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M591 configured as a simple switch should do what you need.
https://duet3d.dozuki.com/Wiki/Connecting_and_configuring_filament-out_sensors
The pause and resume macros are also configurable to do what you wish.
See the recent discussion here: https://forum.duet3d.com/topic/13972/filament-out-sequence-of-actions
