Stringing between holes I am printing out models with holes, the printer makes circular patterns for each hole(which makes sense) but then it also has a string that attaches between each hole. This is unsightly and results in a non-uniform surface finish at the top/bottom of prints.
I am wondering if the string is supposed to be there? I am using CURA on the coarse setting, my machine is direct drive with a 3mm retraction setting. I tried increasing retraction to 6mm but the same thing happened.
When looking at the g-code with a layer viewer it shows the strings but I am not sure if it is only representing tool path or not.
edit:
I just tried printing a retraction tower test and I haven't had any stringing, does this mean it's an issue with CURA?
edit v2:
I looked at the layer path on CURA and these strings are not shown. I am at a loss as to what is going on since the retraction test showed it worked fine but every print with holes has the same problem.
Consider that the string you are seeing is the nozzle wiping across the surface, especially if you are not getting stringing via your test part. As you suggest, it's not unlikely that the layer viewer is showing movement and not extrusion.
Check your z-hop settings as well as the other references in the linked page. Z-hop will drop the bed by the set amount when traveling with retraction.

The other useful reference is combing, which limits the travel of the nozzle to remain within the boundaries of the print and also removes the requirement of retraction. It may leave nozzle traces, although that reference is not in the linked page.

All images attributed to linked page.