Ramps 1.4 strange temperature behavior

Hi, I'm working on a mod of Buccanneer where I replaced all the electronic with an "easy to use " arduino + ramps.
Affter much trials and errors, everything works fine but a very annoying thing :

when I try to heat up the extrudeur (there's no bed) while in repetier host, everything's just fine and my extruder reach 200 or 210 easilly..
But when I slice ant print the temperature goes up fast at the beginning then it reaches a plateau level, somewhere around 10 degrees less than the expected temperature...

I think it should be something so simple I couldn't find my own arse with both end...
Please, any idea would be welcomed.

Comments

  • check the temperature setting in the slicer
  • Checked, but normal settings, 205 for first layer, 195 for the rest, usually it's ok with my other printer.
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