Prime after coasting

[ronijoeman]

I am currently using a fairly long Bowden tube (1000mm) and an extended melt zone hotend (E3D Volcano). I have found that I can very effectively combat oozing and at the same time minimize retraction distances by using fairly long distances for the Coast to End setting (>2mm for PETG). While the end of the loop is printed perfectly, the start of the next loop is underextruded. This is a problem for small features which don't trigger a retraction (I can add extra distance after a retraction).

My feature request is for a setting similar to Extra Restart Distance, but that is applied specifically after coasting to the end of a loop. This would easily account for the underextrusion for longer coasting distances.

[JoeJ]

You wouldn't want to extrude extra at the end of the loop right after coasting had occurred, since that would just cause oozing issues. I imagine you would want to extrude extra at the START of the next loop, after coasting at the END of the previous loop. That makes more sense to me at least…

I think that's exactly what the current "retraction extra restart distance" setting does

[ronijoeman]

JoeJ, yes at the start of the next loop is what I meant. Just something that is applied at the start of the next loop after a coast has occurred. "retraction extra restart distance" requires a retract to add the extra length. I'm more concerned with cases in which a retract wasn't performed, i.e. when finishing the outer loop and moving to infill. This is where a lack of material is occurring for me most often when using longer "coast at end" distances.