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Posted · usb printing - first layer weirdness

Hi

I am trying to print to my Anet A8 via Cura USB (2.7.0) but I am getting strange results on the first layer. If I save the file and print from memory card it is 100% Apart from the first layer the rest of the print is ok. The results dont seem to change much if I use brim or not.

IMG_20170903_195849064.thumb.jpg.37fb8365f11b2e251b3b122f2f574295.jpg

Any suggestions would be welcome.

Thanks

Tim

IMG_20170903_195849064.thumb.jpg.37fb8365f11b2e251b3b122f2f574295.jpg

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    Posted · usb printing - first layer weirdness

    It seems to be getting random read errors on your card. I've seen this before. Occasionally an X or Y value is set to zero or 1 meter or something and the head moves up to the edge of the build.

    It can be caused by:

    10 dust/dirt where memory card touches the contacts. This has happened to me and I fixed with a vacuum cleaner and some q-tips with alcohol.

    2) bad memory card - try a different one

    3) cable cross talk. Try moving the ribbon cables farther from each other and farther from any other electric signals. Just a few mm farther is enough.

    #2 is the easiest to test for. #1 is the most likely.

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    Posted · usb printing - first layer weirdness

    Hi

    I am still battling with this, I installed RepetierHost 1.0.5 and that prints fine via usb but I always get a weird first layer with Cura 2.7.0 via USB

    Please help!!!

    Tim

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    Posted · usb printing - first layer weirdness

    I am still battling with this, I installed RepetierHost 1.0.5 and that prints fine via usb but  I always get a weird first layer with Cura 2.7.0 via USB

     

    Most likely your printer does some additional steps, if the print is started from the sdcard (homing, bed leveling? whatever...). I doubt that this can be changed with a specific setting in Cura. But perhaps it's possible with a suitable start gcode script. Is the printer definition for Cura made by yourself? Can you ask the manufacturer of the printer?

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    Posted · usb printing - first layer weirdness

    Its a Prusa I3 clone so i am using that profile. There are lots of these out there so I figured I was doing something wrong. Thanks for the suggestion, I will try supplier.

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