I finally got my printer working again. I spent the whole day going through Teaching Tech’s calibration steps. All the flat calibration gcode looks fine. The Benchies are another problem though. I’m printing with a 0.6mm nozzle for the first time.

On the smaller benchy I printed at 0.2 layer height, with a perimeter speed of 40mm/s at 210/60 temps. The bigger one is 110% larger and printed at 0.25 layer height, with a perimeter speed of 60mm/s at 215/60 C.

The problems are mostly manifested in the same area. Big blobs in the rear and layer shifting on the tail pipe. Large layer shifts/bulges in the center. I’ve never really ran into this problem before so I don’t know where to start when diagnosing this.

  • linuxgator@lemmy.world
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    1 year ago

    Check and make sure that your z screw is not sticking or binding. Also, make sure that the hotend is tightened and there are no gaps where filament can ooze from.

    • solarbird@kbin.social
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      1 year ago

      oh this is so weird. so very weird. look at this picture in particular. Look at the layers weaving up and down well before you get to the big ridges, when they still are… semi-normal. It’s not corner curl, it’s happening where the bottom is actually still flat. What the actual fuck.

      • papalonian@kbin.social
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        1 year ago

        Looking at that corner… it definitely just looks like corner curl. It can be incredibly hard to see when the printer is going, but unless your slicing software was telling the printer to raise the Y axis in the exact same pattern every layer, nothing can really cause that besides the corner of the print coming off the bed. You can fix that part by playing with the bed temp settings. Too low and the first lines won’t stick, or the print might pop off the bed of the nozzle runs through some hairy parts. Too high and you get prints like yours.

  • sneakyninjapants@sh.itjust.works
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    1 year ago

    In addition to these other troubleshooting comments, what is your cornering speed like in the slicer on the sharp corners of the boat? (back of hull, back of cabin) It seems either too high, or your hotend fan may be malfunctioning, leading to a jam. Wouldn’t be a bad idea to double check that the part fan is spinning when told to as well.

  • puppetx@lemmy.world
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    1 year ago

    If you look at the sliced tool paths, what is it doing when it puts those Xs into your test print?

      • sneakyninjapants@sh.itjust.works
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        1 year ago

        The area where it’s layer shifting in the center of the boat, if you have some way of measuring that, divide by layer height to determine what layer that happened between. If the slicer is doing anything fucky with the tool paths than that may be a contributing factor.

        Edit: Sorry, just realized that puppetx was talking about the box, not the boat

      • papalonian@kbin.social
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        1 year ago

        In your slicer, you should be able to “play” the gcode to show you step by step what you printer is going to do, for each layer.