Pattern Pressure Advance Calibration

CCS86

@Ellis said in Pattern Pressure Advance Calibration:

@CCS86 Interesting idea, but I don't think it's necessary, the part goes straight into the trash afterwards, a bit of stringing doesn't matter as long as its prints and is readable

I'd argue that the stringing makes the print less readable, and without Z hop the nozzle strikes even more so.

Ellis

@CCS86 nozzle strikes yes, stringing no

Exerqtor

@Ellis

It's probably just me being dense, but what's the "correct" speed to use when your slicer is setup to have dramatically different internal(100mms) and external(40mms) perimeter speeds?

Ellis

@Exerqtor Generally I try external speed first, and if it's not fast enough to show differences, I will fall back to internal speed.

mrehorstdmd

Slightly off topic, I tried some retraction tuning using the "standard" two-towers type structure. The problem with all of them that I have seen is the towers are too small (typically 5 mm dia) and the plastic blobs a few layers into the print. Maybe my cooling is inadequate, but I think a larger tower size (maybe 20mm dia) that takes a little longer to print and allows a little more cooling to occur is probably a good idea, at least for a large nozzle. More experiments to follow.

Robthide37

@Ellis Would you be open to me using your script on my website to replace the current one ? www.advanced3dprinting.com is my site . Or i would love to have you post a blog article and you could put a tip link in it since i do get about 700-900 unique visitors a day so it should get you something in return .

CrazyCreator

All fine, or not?

oliof

@CrazyCreator following the instructions on the site, I would say you end up at 0.035 to 0.04.

CrazyCreator

@oliof stupid question ... in my config.g i have to disable the M572 or is overwritten from the g.code?

Ellis

@Robthide37 Sorry just saw this.
I would prefer to keep it on my site but you are welcome to link to it

Ellis

@oliof The tool will set your PA using M572 at each increment, and then set it back to the start value at the end. If you have your PA set before running the tool, it will override it.

See Saving Your Value once you settle on a value.

oliof

@Ellis Oh sure, I was just sharing my interpretation of the print results.

Ellis

@oliof Sorry, meant to tag @CrazyCreator there!

CrazyCreator

I don't see any difference ... i'm a old blind man

But i think my steps to big ... now i posted the picture i see it.

CCS86

@CrazyCreator said in Pattern Pressure Advance Calibration:

I don't see any difference ... i'm a old blind man

But i think my steps to big ... now i posted the picture i see it.

https://www.amazon.com/gp/product/B08LVN5J3Z/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

CrazyCreator

@CCS86 good idea ...

here is the new one ...

i think 0,034 or 0,035 is the sweet spot.

oliof

@CrazyCreator yeah, 0.035 still gets my vote