Hey, I didn’t know this and wanted to share just in case, but apparently if you decide to use the high precision nozzle offset calibration, you want to turn off the normal one when slicing per the wiki
“In the current firmware version, if you want to use high-precision nozzle offset calibration data, you need to select “off” in the “nozzle offset calibration” option before sending the print task.“
It makes sense tbh, but I’m surprised it doesn’t mention this anywhere on the printer or slicer.
Interesting. So I imagine you would want to re run the manual calibration anytime you change nozzles.
I guess it’s like the flow calibration. You turn it off when you’ve manually calibrated the filaments.
but does it overwrite it and then you have to do it again, or it stores and uses if you turn off?
Yeah, According to support (I have an issue but happened to ask them about this) They said even if its the same nozzle, you’ll want to rerun the bed mesh and calibrations as there’s variation when taking the nozzle on and off.
Based on how they word it I’m assuming it’s an entirely separate value that the printer stores. I would hope if you accidentally turned on the one in the slicer it doesn’t overwrite the high precision one otherwise that would suck lol.
Well, I can imagine that at different temperatures the offsets might need new calibration of the length of the nozzle.
For what I can see, the high precision calibration is also calibrating the XY position. That is not being done at the start of a print.
So I would presume that during print start, only the length is calibrated at nozzle printing temperature. I can’t imagine that would interfere with the XY calibration.
When doing a dual nozzle print my printer runs the nozzles over the sensor in the back. That’s for XY no?
Z is calibrated by touching the bed with both nozzles in the same spot isn’t it?
thats for offset between Nozzle A and Nozzle B. The distance (and I hope their relevant position in regard to each other in the Y axis) between them.
I am not sure if it does an XY calibration then. Would be curious to the process/technology behind it.
So it might be doing something there.
In one of the older posts someone really had to run the “High precision nozzle calibration” to get rid of a serious XY misalignment between the two nozzles.
So to me it feels like it’s not doing XY at print start, or it does a lousy job.
If someone has more details, I am very interested.
Good to know! Though weirdly, their test print image doesn’t look the same as mine. On my print the line spacing are all equal, while in their print it should be 5 and 10 mm.
That might be a firmware update.