I’ve been tuning my Creality K1 ever since getting it (at a steal of $237.15!) about 3 months ago, and I finally got to a point where I’m getting really good, consistent quality results.
Upgrades include:
- MicroSwiss CHT FlowTech hotend / brass nozzle
- Triangle-Lab all-metal extruder gears
Strangely enough, the calibration I did that seemed to make the most difference is the one I kept reading was the least necessary to do. I performed an E-step calibration, and ended up changing the rotation_distance
from the default 6.9 to 6.86964. Seems nearly identical, but the next print after making that change was the cleanest I’ve seen yet on my printer.
By the way, the print above was run at 600mm/s, with Overture Turbo PLA!
I’m now going through and fine-tuning temp, flow, and pressure advance for each of my filaments, and this is just such a different experience than that of my franken-Ender 3; however, I’m still incredibly grateful for all the knowledge and experience I got from constantly tuning that printer for about 3 years straight.
Image Perfect first layers, every time
cmnybo@discuss.tchncs.de 5 hours ago
Is that hotend and nozzle actually able to keep up with the 48mm³/s flow rate needed to print at 600mm/s with 0.2mm layers?
I’ve been thinking about upgrading mine. The stock hotend can only do about 20-25mm³/s at reasonable temperatures.
spitfire@lemmy.world 1 hour ago
I was able to get >35 (tested using Orca’s calibration) with CHCB-OT, but I doubt you can go much higher than that even with better extruder gears.
AliasVortex@lemmy.world 4 hours ago
Agreed. Not to burst OPs bubble, but I highly doubt they’re hitting a flow rate that high.
If I had to guess, Orca is capping their extrusion move speeds at whatever speed the
filament_max_volumetric_speed
of their filament profile is set to. In other words, if the profile is set to12
(default for Creality Generic PLA) the actual speed is probably something like150mm/s
(flow / (nozzle diameter * layer height), so 12 / (0.4 * 0.2)), regardless of what the speed value is set to.tensor_nightly69@lemmy.world 1 hour ago
Yep, you’re exactly right! I forgot that I have the volumetric speed capped at 25 for the Turbo PLA (based that off of random reported values other people used, but didn’t think to try and benchmark it yet). So I’m gonna do that right now! The Overture Matte PLA also prints incredibly cleanly at 300mm/s, so I’m going to benchmark it and the Turbo PLA to see how high this hotend can go. I’ll report back when finished.