Pin '4p_fan_part_cooling_tach_pin' is not a valid pin name on mcu 'mcu'

Please help. .cfg attached
6 Replies
blacksmithforlife
because the octopus board doesn't have a 4 pin header for fans you uncommented line 153 when you shouldn't have you also have a bunch of other stuff in there you don't need
vinnyvin_98
vinnyvin_982y ago
okay sorry I am still a total noob. for some reason the 4028 fan goes to 100% on startup even though I have the pin settings the same from my configuration before I updated to the latest frimware. What other stuff should I get rid of?
blacksmithforlife
sounds like this problem? https://os.ratrig.com/docs/guides/4028#my-fan-runs-at-100-until-klipper-boots
What other stuff should I get rid of?
you have a bunch of stuff that is just repeating the defaults (line 322 and down)
vinnyvin_98
vinnyvin_982y ago
I changed the sample retract distance on the bl touch from 10 to 15 and I added z tilt to the startup sequence. Other than that I'm just leaving default values in there. Can this cause issues? I followed the instructions from that page the first time I set up the printer. I copied my code for [fan] from my original .cfg to the override section in this new .cfg exactly the way I had it before but it is no longer operating as expected...100% fan on startup even though I have the ground connected to negative on the heater 1 port.
blacksmithforlife
added z tilt to the startup sequence
that is already in the START_PRINT macro
vinnyvin_98
vinnyvin_982y ago
ah face palm it seems that the settings for the 4028 are reversed...I think you made a post about this somewhere. at 85% fan setting the 4028 just turns on and goes up in rpm down to 1% fixed it...redundant stuff below was messing that up okay I deleted all of the extra stuff except for my modified bltouch setting and the lines for handling the 4028 setup
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