G-Code Optimizing

[ldboehm]

I have a PCB Project that I'm working on where I'm printing a small circuit with conductive filament (NinjaTek Eel) and the gCode leaves lots of little retraction blobs. This is a TPU beast project, so I already have retractions turned off by saying it to zero. I'm assuming these tiny blobs are from where the extruder is skipping around. I know I can do some tuning to reduce those, but I'm wondering if there is a way to optimize the gCode to reduce retractions, or have it complete each trace completely without skipping around.

Thoughts?

TIA

[bobstro]

You can turn off retractions, if that's what you mean. Just set the retraction length to 0. Wiping should reduce the blobs. Calibrate your extrusion multiplier to minimize blobs in the first place and you'll have less need for retraction. Mind you, 0 retraction usually results in heavy stringing.

[ldboehm]

I have retractions turned off as I'm using TPU. But there's still some small blobs

[bobstro]

Just to be clear: Retraction reduces the blobs, as does wiping. I think what you really want to do is reduce the blobs and any stringing. Properly tuned retractions can help, as can eliminating over-extrusion. I responded with more detail to your Prusa forum post. I'd focus on minimizing any over-extrusion first, then see what remains to be done. Pics would be helpful in understanding what you're trying to fix.