Duet Controller, a way of calibrating temp readings ? January 25, 2016 06:57PM |
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Re: Duet Controller, a way of calibrating temp readings ? January 26, 2016 04:14AM |
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Re: Duet Controller, a way of calibrating temp readings ? January 26, 2016 06:24AM |
Registered: 8 years ago Posts: 78 |
Re: Duet Controller, a way of calibrating temp readings ? January 26, 2016 01:03PM |
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Re: Duet Controller, a way of calibrating temp readings ? January 26, 2016 03:04PM |
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Re: Duet Controller, a way of calibrating temp readings ? January 26, 2016 11:05PM |
Registered: 8 years ago Posts: 78 |
Re: Duet Controller, a way of calibrating temp readings ? January 27, 2016 05:35PM |
Registered: 10 years ago Posts: 293 |
Quote
Pumlux
That tips looks pretty good.
I'm still running tests on various parameters.
So far following M-Code delivers good matching results :
M305 P0 T100000 R4700 B5520 H-65 L0
Re: Duet Controller, a way of calibrating temp readings ? January 28, 2016 02:12AM |
Registered: 8 years ago Posts: 78 |
Re: Duet Controller, a way of calibrating temp readings ? January 28, 2016 05:06AM |
Registered: 9 years ago Posts: 1,159 |
Quote
Pumlux
Hi WZ9V,
I'm using 1.09m
(FIRMWARE_NAME: RepRapFirmware FIRMWARE_VERSION: 1.09m-dc42 ELECTRONICS: Duet 0.85 DATE: 2015-12-08)
From my understanding the H value is for adjusting the reading at 25 ° Celsius and the B value is an adoption parameter variance for higher temperatures from the
mathematical expected temperature.
In my maschine I have a higher discrepancy, because my bed thermistor is not installed in the aluminium bed, but in the silicone heating pad and this is for an accurate readout
an issue.
My thermistor for the heatbed was installed when the silicon pad was made in China, I do not have ana documentation on branding or technical specs, other than 100k Ohm.
The Z-probe is a different topic, as it messures not temperature. I have following command for the z-probe in my config.h file :
G31 P500 Z3.1 ; Set the probe height and threshold
I did not see a H parameter in the G31 command in the G-Code wiki, temp parameter are named differently here, see :
Usage
G31 Pnnn Xnnn Ynnn Znnn Cnnn Snnn
Parameters
Pnnn Trigger value
Xnnn Probe X offset1
Ynnn Probe Y offset1
Znnn Trigger Z height
Cnnn Temperature coefficient2
Snnn Calibration temperature2
I did not play with temp parameter in the G31 command yet, still sorting other parameters in my new printer.
When I have completed my testing with the M305 command, I plan to create a short graph on the temp curves, when this is completed I can show this here.