Jump to content
Ultimaker Community of 3D Printing Experts
nashtm

usb printing - first layer weirdness

Recommended Posts

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

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

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?

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Announcements

  • Our picks

    • Architect Design Contest | Vehicles.
      We're open for entries! - Design and submit your 3D designs of architectural entourage - vehicles - for a chance to win a large filament pack. Presenting an idea, an architectural design or something as big as an urban project isn't easy. A scaled model can really help to get your idea across.
        • Like
      • 24 replies
    • What The DfAM?
      I'm Steve Cox, an experienced engineer familiar with 3D printing. I wanted to share some DfAM guidelines with this community to help and make stronger parts.
      I'm also an Autodesk Certified Instructor for Fusion 360, so many of the images in ...
        • Thanks
        • Like
      • 21 replies
×

Important Information

Welcome to the Ultimaker Community of 3D printing experts. Visit the following links to read more about our Terms of Use or our Privacy Policy. Thank you!