Aidan
RRCRat Rig Community [Unofficial]
•Created by Catweazle (Stefan) on 4/29/2025 in #fix-my-printer
homing z
9 replies
RRCRat Rig Community [Unofficial]
•Created by Catweazle (Stefan) on 4/29/2025 in #fix-my-printer
homing z
So undo the Z motor inversion and you will be fine. The sound you heard when it hit the bottom was the motors trying to pull the plate through the bottom of the printer. I hope you did not leave it making that sound for very long, it can burn out the motors
9 replies
RRCRat Rig Community [Unofficial]
•Created by Catweazle (Stefan) on 4/29/2025 in #fix-my-printer
homing z
You are just thinking about it wrong. Don't worry, I did too for a bit.
When you hit the button in the circle, that is moving closer to zero in Z. Closer to zero means the build plate has to get closer to the nozzle. In the case of a rat rig (and other printers that move the bed in Z), that means moving the bed upwards
9 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
I've sent RR a message through the website, when I get a response I'll update
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
Gotcha, so my new one cutting at 90 is definitely not supposed to happen lol
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
So I did calibrate it
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
Ah yeah I can see it, there are PID values for the bed in my printer.cfg
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
Not sure how to check if I did
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
I'm also fairly sure I did the calibration for the bed as well
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
I don't think I did, going to check that now
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
I've had the printer for only about a month now, do I contact RatRig?
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
It's strange that it will work if I step it up
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
Yep, 12 ohms regularly. Temp starts falling, pulled it off and I'm getting NC across the wires
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
So heat it, immediately unplug and detach it, then measure resistance over the bed wires
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
Ah yeah, couldn't do that in series
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
500mm
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
So I should be checking current through the bed wires as it fails?
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
Okay. So long as the bed is turned on I am getting 1600 ohms of resistance over the wires coming directly from the bed. Even when the bed supposedly stops heating I am still getting that resistance. In that point I have also confirmed 120v AC is running through the bed, despite the temperature dropping
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
You're talking about the two white wires? I have no continuity along them even when it is heating
47 replies
RRCRat Rig Community [Unofficial]
•Created by Aidan on 4/26/2025 in #fix-my-printer
Bed Heater Failing on long heating segments
Gotcha
47 replies