Revo 6 PID tuning just hangs
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here is a screenshot from the dwc, it doesnt show the m303 command when i entered it on the panel due but the blue line indicates where the tuning command was entered... you can see that before it failed, and now it completed.... this is confusing as all hell.....
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Is your heater cartridge 24v or something?
Do you see any change in temps reported?
What voltage are you reading from your power supply output? Does it have an adjustment pot?
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again its the 12volt version of the revo.. but since it completed the tuning i entered the results to the config file, heated up the nozzle, inserted some filament and was throwing together a quick 20mm calibration cube file with the new nozzle settings etc and while doing that i got this:
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@wingtip said in Revo 6 PID tuning just hangs:
@deckingman said in Revo 6 PID tuning just hangs:
@wingtip So what happens if you simply try heating the tool. i.e set the active temperature to something other than zero - say 50 deg C or so? Does it try to heat then?
does nothing
So it did not heat when commanded to do so. There are only two possible reasons that I can think of. Either there was no voltage on the heater due to a wiring fault, or the heater itself is faulty. The fact that it does now heat up, shows the fault to be intermittent and that is more likely to be a bad connection than a faulty heater ( but it's not impossible that it is a faulty heater).
If I were you, I would concentrate on getting the heater to work consistently - i.e. to always heat the hot end when an active temperature is set. There is no point in trying to PID tune it until that is fixed. You can forget about any configuration issues - it would never work if there was something amiss there. Also, you can forget about the temperature sensor as that seems to be working as it should. I would concentrate on tracking down a broken wire or faulty crimp connector on the heater itself.
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@Phaedrux said in Revo 6 PID tuning just hangs:
What voltage are you reading from your power supply output? Does it have an adjustment pot?
Just measured the voltage at the board input and its right at 12 volts, which is coming from a 1000 watt ATX power supply.
im just spit balling here but i think the 10.5 volts has to do with the revo. I recall reading info and seeing is some videos like from thomas salander that the revo changes the voltage as it heats up to use less power as it gets near the set temp if i am remembering correctly... maybe thats why i saw the lower reading..
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That could be, yes. That's why I asked to check the terminals.
So it has now tuned successfully and has heated up but threw a fault?
What command did you use to tune? What were the results? Did you save them with M500 and have M501 in your config.g at the end to load them?
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@Phaedrux
the results are posted above in the screenshot. I manually saved to the config file and reuploaded to the machine. do i still need to do the M commands for that as well? -
Can you try tuning with M303 T0 S240
That should tune it as a tool head and include the part fan cooling effect.
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I think this is finally resolved ... This was giving me fits cause it was so intermittent. But when I checked all the connections they would show ok. Finally during another continuity check, the intermittent connection finally revealed itself despite showing good several checks prior. It was a bad crimp. a simple bad crimp that just over time failed. Ichecked that particular connection several times.
Thank you everyone for all your patience and guidance which did help me make a few corrections to some gcode and updates.
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Glad you got it sorted out. Those intermittent connection issues are hard to pin down.
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undefined Phaedrux has marked this topic as solved
