M190 not waiting

TC

Hi, I just included

M190 P0 R30

into my stop.g file to wait for the bed temperature to decrease before doing some more moves and it sets the temperature but simply does not wait for the temperature to be reached.

Any ideas?

dc42

It won't wait if the temperature you request is 40C or lower, because that temperature may never be reached. So try waiting for 41C.

TC

Oh thanks. Maybe that should ne mentioned in https://duet3d.dozuki.com/Wiki/Gcode. Wouldn't it be easier to define a timeout for the waiting? I mean 40C feels like a random choice and really depends on your setup

mokash

@dc42 I'm trying to have my prints auto eject, 30C seems reasonable especially with a fan blowing over the bed. Is there any other command that will allow me to run my eject script at a specified temperature?

I'm using a sheet of FR-4 as a build surface which releases quite nicely at room temperature, more experimentation is need before I can find the max release temperature. Quinly is using 27C

dc42

Use RRF3 conditional GCode. If the bed sensor is sensor 0, something like this:

while sensors.analog[0].lastReading > 30.0
  G4 S1