So, after fiddling around I went to other config than yours, Trevor, as your
settings on mine T-D500 still oscillated at or below 0 °C values.
Used Beta thermistor settings as TriangleLabs info at the bottom says
(B150/250=5300)
So my settings are:
temperature1: 200 #middle for beta150/250
resistance: 8000
beta: 5300
In my case, now at room temps it oscilates between 10-20 °C, sometimes (rarely)
dropping to 7 °C due to the signal noise. But that is just fine for me.
It obviously becomes accurate once it reaches 80-100 °C values, then it nicely
goes with resistance values within specs
Jozef
On 31 Jan 2021, at 01:03, Mike O'Connor <mike@xxxxxxxxxxxx> wrote:
Which board are you using Jozef, I think I read somewhere that the
bigtreetech SKR board do some some issue with some types of probes.
Mike
On 31/1/21 8:13 am, Trevor Jones wrote:
I've been running the same temp probes on my three machines for a few months
now with decent success. Though it is fairly jittery around room temps.
(bounces around between 26-28c)
https://github.com/trevjonez/klipper-configs/blob/master/thermistor_T-D500.cfg
<https://github.com/trevjonez/klipper-configs/blob/master/thermistor_T-D500.cfg>
I remember needing to do some trial and error and cross referencing a few
different spec sheets from dyze, TL and electronic supply house listings to
land where I did with these. But it is working across all of my machines
that all have the same hardware.
These are on the fysetc S6 which uses the STM32F446 mcu and are mounted in
the triangle labs dragon hotends with copper blocks (mix of high and normal
flow).
On Sat, Jan 30, 2021 at 1:43 AM Jozef Remen <jozef.remen@xxxxxxxxx
<mailto:jozef.remen@xxxxxxxxx>> wrote:
Hi, I'm using Trianglelab T-D500 thermistor on my hotend. I have read issue
on this on Github. https://github.com/KevinOConnor/klipper/issues/3182 ;
<https://github.com/KevinOConnor/klipper/issues/3182>
In Marlin, it reported temps not below 21 °C even if not heated.
In Klipper, it oscilates from -8 °C upwards when not heated. For now, to
avoid Klipper shutdown, I had set the min_temp to -10 °C.
However, I don't feel safe about this – in case it fails, there is huge
possibility Klipper will not do Thermal shutdown.
Is there a better way to set it via [verify_heater] ? I can't quite
understand options there.
