Help diagnosing tiny horizontal lines on the print.  

RE: Help diagnosing tiny horizontal lines on the print.

Hard to tell from the picture but those look like the seam points where it start and stops each layer.  You havent attached a zipped up project so I'd guess that you have either cost based or random seam placement.  Do the locations match the seam positions on the preview of your slice ?

Removing seam completely is almost impossible due to the nature of ffm printing.  The slicer can be set t try and hide them in corners to make them less noticeable and of course tuning your filament parameters and retraction can minimise them but they cant be eliminated completely.  You can check if they are caused by the seam by setting the seam location to rear and slicing again and printing.  If they all line up at the back you know its the seam. 

Not familiar with the orbiter but most direct drive extruders I've used usually have retraction set to around 0.6-0.8mm.  You could also try printing with retract at layer change off.

RE: Help diagnosing tiny horizontal lines on the print.

Thanks for the reply.

I also think its the seam. Currently I'm using random and not retracting on layer change. They don't line up so that makes since. I tried to move the retraction to .8 and it seemed the same. I'll do what you suggest and move the seam to the back and see what happens. I'm using a volcano heat block so I had the extrusion on the high side. Possibly its retracting moving from infill to walls or outside to inside walls.

RE: Help diagnosing tiny horizontal lines on the print.

So moving it to the back showed it was definitely the seam. Enabling retraction on layer change made a huge difference.

@freddy-twofingers

you might also want to consider checking and adjusting your extrusion multiplier.

Regards

Swiss_Cheese

RE: Help diagnosing tiny horizontal lines on the print.

Thanks 

I have ran a few multiplier prints and it seems to be fairly good. I did adjust my nozzle height a bit to remove the elephants foot.