Hi,
New to 3d printing, just got a p1s and been getting to grips with settings calibration to get best out of sunlu pla filament.
What should part cooling fan settings be? Currently i am using my own filament preset which was originally a Bambu PLA Basic preset and the values are set to min fan speed 100% and layer time 100s and Max fan speed 100% and layer time of 4s so basically this means its running at 100% all of the time. Is this necessary?
Thank in advance.
Dan
It is recommended to use the Generic PLA profile when using a filament different from the Bambu PLA Basic.
The Bambu Filament profiles have been tested based on the filaments we sell, and not all settings will work well with other filaments.
In regards to the cooling settings, this is what is recommended for Generic PLA
I think part of PLA’s popularity has been that it prints well without an enclosure, so we need to make adjustments when using a closed print chamber.
I get good results with various PLAs using the generic PLA cooling settings. Even though I calibrate filaments for best nozzle temperature, flow rate and pressure advance, I’ve not been tempted to change any cooling settings.
I mostly also follow the Bambu recommendation to open the door and top for PLA, PETG and TPU. The exceptions occur in winter when my shop is cold. A closed chamber and preheating with the bed seems to be needed to get the chamber above about 26°C. If a long print session then raises the chamber above ~38°C, I open the door.
Thanks for your input. Are there min and max recommended chamber temperatures and how are you monitoring this?
I suppose there are lists of recommended chamber temperatures, but I have not used any, relying on my limited experience.
“Experience is what you get when you didn’t get what you wanted."
I found that PLA cools too quickly and does not stick very well to the plate or itself when the chamber temperature is at or below 26°C. Chamber temperatures above the mid 40’s can also lead to clogs and failures. I aim to stay in the 26 - 40° range for PETG and TPU also.
A closed printer is recommended for filaments that need higher temperatures - ASA, ABS, PC, PA6, etc. I usually use the bed to preheat the chamber to 40°+ before beginning a print with those filaments. Long prints with maximum bed temperatures can get the chamber up to the high 50s, but only the X1E has an actual control for that limit.
The X1E has a chamber temperature sensor and a separate chamber heater. The X1C has only the sensor, and the P1S (I think) has neither. You could easily put a thermometer in the chamber.
OK great that’s helpful to know.
Reverting back to your first post about calibrating filaments, what is your process for this.
So far I have learnt the following since starting my 3d printing journey regarding calibration of filaments. This is how I have calibrated my sunlu pla and in this order.
Is that the correct way of calibrating your filement?
I guess there’s lots of ways so be interesting to hear what experience people do.
One thing I’m not sure of is once I’ve got my flow ratio and max flow rate how do I work out max speed. The info from sunlu doesn’t seem to clear, on the box it say 100mm/s but on the website I found a pdf thays 200mm/s so would be good to be able to work this out based on your own calibration results.
And from this how do I translate into different speeds to outer wall, inner wall, sparse infill, internal infill and top surface. Or just set them all the the max speed.
Thanks
Dan
