Close



Results 1 to 7 of 7

Threaded View

  1. #4
    Technician
    Join Date
    Feb 2017
    Posts
    79
    Thank you, I don't see any perceptible run-out in those coupletrs but it is traveling ata fairly slow RPM. I am using repetier hosts embedded cura and it seems other prints that don't have holes and things in them seem fine. This issue seems to occur when a start/stop/change direction occurs. As you can see most of the issues are on those layers w/ holes. I have reduced x and y accel to 800 for now (from 1000) as well as jerk from 20 to 8 on my maker select. Much of the ringing is gone but if you look at the pic I just added, looking at the hole perimeters, and it's hard to see, there is a slight bulge in the layer thickness there like it almost over extruding as it changes direction. I thought maybe it was due to the slowed jerk setting but it also occurs in the stock 20 jerk setting (see first pic). I've added a new pic to show this a bit more clearly, this last pic is w/ a manually adjusted y axis belt integrated into the carrier block. I have the tension tight enough where I can just pinch the two belts together but I need to research optimal belt tension still. I tried to increase jerk some but keep accel reduced to 800 and the issue is still there. After closer inspection this same defect occurs on the stock jerk setting, it's just masked by the ringing. So what you see in this last pic is also in the one w/ the significant x axis ringing. I went ahead and rotated the part 90 degrees so the long face now on Y axis shows ringing even w/ 8 for jerk setting (I do have the z brace installed). That bulge at the ID of the hole still is there as well.

    I've printed a temp tower and while it seemed to print best at 196 I wasn't happy w/ layer adhesion. I've been printing at 205 as of late w/ PLA and I'm happy w/ it for the most part. My layer speeds are fairly slow (50mm/s print speed, 45mm/s outer permiter speed, 55mm/s inner perimeter, 80mm/s infill speed, 150mm/sec travel speed)

    Dave
    Attached Images Attached Images
    Last edited by TTVert; 02-01-2018 at 01:38 AM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •