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Infill is taking much longer than it should

I have a simple 4 color print that should not take longer than 4-6 hours. It is taking well over 12 hours. I narrowed down most of it to infill not printing very efficiently still. I reported this a while back when trying to print the keychain. It prints part of the infill, maybe 1/3 of a row, then goes back and prints the rest of the row. It also wipes each row after it prints. There is no need to wipe until the end if the infill is printed one line at a time and goes from one side to the other. I stop watching it after the first 20-30 layers, but it is very noticeable.

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Here is my project:

https://share.canvas3d.io/projects/1cb44...

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2 Answers

Hey @opy01, thanks for reaching out about this. I see that you’re using a Hub, could you also send me (alina@mosaicmfg.com) an OctoPrint log from the day you tried to print this model (instructions here)? That should help us figure out why the CANVAS print time is about 6 hours, but the actual print time is turning out to be 12. Thanks again!

Update (09/21/2020)

Hey @opy01, we took a look at your project and have some suggestions that should improve this: could you lower your wipe distance (say to, about 3 mm) and increase your “always retract when travelling more than” setting to about 20 mm? Your current wipe distance is quite large and your infill lines are more than 5 mm apart (image attached), so raising the retraction setting should help.


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However, this does also seem like it might be a model-specific bug - do you see this issue with all models you print?

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@alina I sent the logs. I know that the printer firmware settings and Octoprint settings can cause the print to go slower than the slicer says, but what I am most concerned about is the way it is printing infill. My biggest concern is that it is wiping each row of infill when my other slicers do not. It should go up one line then directly to the next and just back and forth across the print only wiping at the end of the infill. if the infill is all inside one perimeter then it should never retract or wipe until the end of that infill and then only do it once.

Please look at the attached screenshot of the sliced model I am adding to the original post. There should be no retract or restart points in the middle of the infill.

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You are correct, that does seem to be model specific. I checked another one with a larger infill area but same settings and there are no retract or restart points in the middle of the infill. I’m going to try another model and see how it does.

Also, the wipe reduction and increasing the minimum travel for retract helped.

Thanks!

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No problem! Please let us know if you run into any other issues.

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Oscar Pruitt will be eternally grateful.
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