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bigtreetech / BTT-E3-RRF

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ERROR: M221 No Tool Selected #8

Open Wombat37 opened 3 years ago

Wombat37 commented 3 years ago

I've just set up a BTT-E3-RRF board with a BTT-E3-TFT35 display on an Ender 3 Pro printer.

Latest firmware was uploaded to both boards (RRF dated April 8 and TFT 3.0.E3.27). All seems to work OK except that when the hot end heater is in standby or off (on boot or set manually from DWC), a persistent M221 No Tool Selected error is displayed on the TFT display which cannot be removed and so renders the whole printer useless. Using DWC to reset the hot end heater to active clears the error on the display and it becomes functional again.

It took hours to track this down. Hopefully, I've made a mistake in editing one of the configuration files or it's a bug that's quick to fix.

Wombat37 commented 3 years ago

Sorry - I should have said that I set this up in RepRap mode.

Wombat37 commented 3 years ago

Work around...

Put this in the config.g file near the end, after the ;Tools section

M104 S0 T0 T0

This puts the hot-end heater into active mode set to 0°C and the No Tool Selected error doesn't occur!