kokx
RRCRat Rig Community [Unofficial]
•Created by chrisforce on 8/23/2024 in #fix-my-resonance
VC4 300 frequency response what can i do better?
I'd say this graph is pretty good actually. Two peaks and pretty smooth lines for both
8 replies
RRCRat Rig Community [Unofficial]
•Created by Toros on 3/14/2024 in #fix-my-resonance
I wonder if the Hertz is low? (v-core 3.1/500)
I would say that those look absolutely beautiful. The Hz on which things in your printer resonate depend on a lot of factors, so it can be lower than other's resonances.
9 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
Finally got time to test the fix, it definitely holds much more stable bed temperatures now! Only deviations of about +/- 0.1 degrees instead of about +/- 0.5-ish
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
Damn, you guys did great work! Very nice to see this
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
Though yes, make sure your bed doesn't go above 100 degrees this way to be safe
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
That would work indeed
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
PID 1,0,0 would just give you oscillations if I'm correct
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
You basically don't want to set a target temperature but a target load
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
(I wouldn't go for 100, don't want to delaminate the heater from your bed)
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
I'm not sure if klipper can do that though
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
There is a way to check that, basically put a stable current (say 30%) on the bed
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
Why go for a complicated solution if you have one that can definitely works
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
Then I'd say turn the plug if needed
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
(I'm currently not close to my printer, otherwise I would try it out myself)
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
I'm basically curious about what happens when we do not have ground the bed, but make sure that the bed is not live
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
Since we also have it when live is not there, it still think that it's also induced through the PSU grounding the bed
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
Potentially, but it could go worse at the same time
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
In theory if we figure out the amplitude we could probably cancel the wave out of it and make the PID more accurate with some FFF, but I think it that is an amount of work for literally no gain
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
That's basically going to be several waveforms added to each other
341 replies
RRCRat Rig Community [Unofficial]
•Created by Oskait on 12/27/2023 in #fix-my-printer
Thermistor wonky when N / L are switched
Ehh, PID
341 replies