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Everything about Marlin firmware : Discussions, questions, support and feature requests...
Re: Super weird - Marlin SD print stutter when not connected via serial - 2 years ago
I finally got around to trying that. A resistor between RX and gnd fixed it. i might make sort of a termination to keep it grounded while not using serial. the poor thing is operational once again, thanks!by matias2k - Firmware - Marlin
Re: Super weird - Marlin SD print stutter when not connected via serial - 2 years ago
Oh, but everything works as intended if there's a PC just *listening* via serial. I just have Arduino IDE's serial monitor at 500k baud showing the occasional temperature status message. If it's standalone, everything is fine too, but it starts stuttering. Reducing print speed improves it a bit, just as you would expect. Plus there aren't a lot of chips anyways the only chips that could be "woby matias2k - Firmware - Marlin
Super weird - Marlin SD print stutter when not connected via serial - 2 years ago
Hello, this is my first post here. I have used Marlin for years, ran into countless problems, but this one is new to me... Long story short(ish), my printer ran fine. It's got a RAMPS 1.4, Arduino Mega, some TMC2208s and some DRV8825s. I replaced some wires for the X gantry and forgot to put the resistor divider on the z probe signal line, so I injected 12V through the Z min pin. Immediately afby matias2k - Firmware - Marlin