Start print temperature

Hi everybody!
I have a rather curious kind of a problem.
I use Repetier with Marlin and I have managed to get very nice first prints.
However when I setup before a print, I heat the bed and the nozzle then I load the print and start it. Between the moment where the start buton is pushed and the start of the print, there is usually a 30 sec gap. In the interval, the printer stops the heating of the nozzle and the bed for unknown reason... (even thou I manually restart it) This has an effect on the first layer as the extruder is too cold to extrude correctly.
In my settings, extruder default temperature is 240° (ABS) and the heatbed is at 110°C. Usually, what happens is that the nozzle drops down to 190-200° then climbs back to 240° quite quickly so that only the outer ring of the print is affected.
Does anyone encounter this problem? Does anyone have any idea on how to solve it?

Many thanks!

Thomas

You can edit the Gcode file to change how the printer handles about starting temperature.

Gcode M109 makes the printer wait until it reaches the specified temperature.
The following code makes the printer wait until the Hotend temperature reaches 205 Celsius degrees.

M109 S205 ;Uncomment to add your own temperature line

Head of a Gcode file generated by Cura.

;Basic settings: Layer height: 0.2 Walls: 0.28 Fill: 30
;Print time: 1 hour 3 minutes
;Filament used: 2.394m 7.0g
;Filament cost: None
;M190 S70 ;Uncomment to add your own bed temperature line
G21        ;metric values
G90        ;absolute positioning
G92 E0                  ;zero the extruded length
G1 F200 E3              ;extrude 3mm of feed stock
G92 E0                  ;zero the extruded length again
M109 S205 ;Uncomment to add your own temperature line

Thank you very much,
I am going to try that tomorrow!

Regards,

Thomas

Works like a charm!
Thanks a lot Janpenguin!