Couple of questions on settings

[joshv 1]

I am currently working with ABS on the UM2. I have a small issue where on the outside edges of my parts I am getting a small ball of extra plastic. It looks like after a retraction the system overextrudes slightly, causing the extra ball of material. Is there a setting that controls extrusion after retraction? Or does anyone have any other suggestions on minimizing these defects?

The rest of the parts look great, so I don't think I am overextruding...

 

[joshv 1]

This is a picture of what I am talking about. The red circled areas show the little balls of extra material I am getting...

 

[joshv 1]

Has anybody ever experienced this before??

 

[Daid 306]

Looks more like the normal Z scar?

 

[joshv 1]

Wasn't sure what the "z scar" was so i did some research, you are correct that is what it is. I guess there is no easy way to minimize it since its kind of inherent due to the need for Z to step. I can't use spiralize on most of my prints since I don't typically print single walled items...