Printig With PVA Problem

[tyler_farrell29 0]

I recently purchased 3mm PVA filament (it is a water soluble material for specialty use). The recommended temperature of printing is between 160-170 celcius. However the extruder motor will not work if the temperature is less than 180 celcius. I tried pringting at this temperature but the material burns and comes out in a weird consistancy. Any ideas on how to get the extruder motor to work at lower temperatures? Its meant for the makerbot printer but i since im using ultimaker im hoping there is something i can do to trick or remedy this. Thank you

 

[illuminarti 18]

The Marlin firmware contains a safety cut-off feature by default to prevent trying to extrude when too cold, since this could damage the printer, if the plastic isn't molten.

You can add an M302 command to your starting gcode to override this behavior - just be warned that you could damage the printer if you try to print PLA or some other plastic that needs a higher temp. If you're using the official UM Marlin from Cura, you can just use M302 by itself to disable the min temp check. If you have a more recent Marlin (e.g., you compiled it yourself from the official Erik Zalm github version, then there's an option to use 'M302 Sxxx' where x is the min temp you want to allow.