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Print Time Disconnect

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I know this has been discussed alot but I wanted to point out my current experience.

I am trying to print a large terrain section and in Cura, it estimates the time to print as approximately 31 hrs. But on the UM2 printer, it said like 129 hrs.

Is this type of time difference normal or is there some aspect of the model that is causing this time difference?



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Hmmm... actuually I'm not having much luck with the Cura time estimate at the moment.

The current terrain model I'm printing said on the Cura estimate 17 hrs & something. But it was 24hrs at about 10am this morning and now it's about 6:45pm in the evening and it's still going.

Not sure what I'm doing that would wack the estimate this much. I do have 4 Tweak at Z commands in there but those were just for the first 5 layers.


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I did change the speed of the print so that's probably it.

Is there anywhere where I can see what the time of the print actually was (without me having to time it myself)? Like see the print stats in the UM2 menu?

I also think it would be great to see more info on the UM2 display during printing like the layer number currently being printed as L1 or L253, etc. during printing.



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The Cura estimate is right, the on-printer estimate isn't that accurate due to hardware limitations.


The time actually goes up from 5 hours when it starts a print to 9 hours.

It would be much better to show the actual time printed and the % of file complteted.

A user can then estimate themselves how much time is left. Also at the end if the actual time of print is displayed that would be great too.


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If you run your printer from a usb attached laptop using Repetier Host, then when you load the gcode RH will display a print time, before starting the print, which in my experience is always pretty accurate. You will also get an exact print time on completion by looking at Job Status under the RH Printer menu.

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