Skrunken overhang test
ฝัง
- เผยแพร่เมื่อ 18 ธ.ค. 2023
- I wanted to do this in 1 minute, but it really takes some MMS and A. At 1:50 seems like cooling is perfect.. anymore and going to see cooling issues.
Note: I tried 3 of these prior to this one and I had issues at the adjacent corner where ever the seam was. Filament was oozing up during the retraction/wait process and by the time it recovered it took out the next corner it came too. This was perplexing to me.. I thought it was not enough cooling, but all the other corners were good. I moved the seam to another place and the corner next to the seam suffered again.
The issue was the extruder acceleration and square corner velocity in the printer config. Bumped up the extruder acceleration to 10K and the SCV to 40 with a retraction speed of 80mms. These settings have always made me curious and to what effect. Still concerned on what the parameters should be!
Good progress! 👀
Love it!
are these backers doing better vs the previous design you had?
They test 30% better, but I don't see 30% gain in quality, lol.
@@MrRocksalt ohh, have you tuned your damping ratio?
@@ProDesigneHd Yes, I use the auto generator script to get those. RES_DATA IIRC.
@@MrRocksalt ahhh okok hmm that's a weird one. How much is your Hz with these vs previous backers?
u mad bruh?
cool machine.
Thank you. Not sure what you mean, but no!
@@MrRocksaltwell i think the title of mad scientist wouldn't be too far off.
I am using a 45cm Bowden tube in my modified Ender3 Pro with Klipper but ı can't calibrate pressure advance no matter what ı do the result is the same.
Don't think this is really the place for this but 45cm is quite long.
Try to get it as short as possible without the filament breaking where it bends.
And look up paraBowden, some delta user have figured out a way to tightly wrap a paracord or other mesh sleeve around their Bowden to increase its compression and reduce the needed PA
If your not seeing changes to PA, then maybe it's not being applied or the filament is not constrained enough. I don't recall if klipper needs UART/SPI to use linear advance/pressure advance. Marlin needs it for sure.. not sure if klipper does.
Klipper only requires UART for running in Stealthchop mode. It can run fine with standalone drivers but only in Spreadcycle mode. Spreadcycle is better anyway, more torque and accuracy ;p
@@hd-be7di
KevinOConnor commented Sep 14, 2019
There is no way for pressure advance to work without any hardware modifications on my board with the integrated drivers, since there are no UART pins available.
FYI, it is not valid to use tmc2208s in "standalone mode" on any stepper with Klipper. They work fine in uart mode, but random shutdowns can occur at any time on any axis when they are in standalone mode (details at www.klipper3d.org/FAQ.html#my-tmc-motor-driver-turns-off-in-the-middle-of-a-print ).
-Kevin
@@MrRocksalt It's probably something to do with his specific board. Creality's 4.2.2 and 4.2.7 boards run fine with Klipper from what I know