Nozzle grinding a hole in build plate

[zogthegreat]

Hi everyone!

I just noticed that when my P1P is doing it’s start print routine, the nozzle rubs against the back of the build plate and is literally wearing a hole into it.

Not only am I concerned about the build plate, but the nozzle also. Here is a video of what is going on:

Video of nozzle grinding the plate

Here is the start gcode:

; filament start gcode
{if (bed_temperature[current_extruder] >80)||(bed_temperature_initial_layer[current_extruder] >80)}M106 P3 S255
{elsif (bed_temperature[current_extruder] >60)||(bed_temperature_initial_layer[current_extruder] >60)}M106 P3 S180
{endif}

{if activate_air_filtration[current_extruder] && support_air_filtration}
M106 P3 S{during_print_exhaust_fan_speed_num[current_extruder]} 
{endif}

Any suggestions as to what is going on?

Thanks!

[PrinterMcgee]

It’s the “wipe zone”… it’s normal.

[zogthegreat]

Thanks for the info, @PrinterMcgee . I still think that it’s weird, but as long as it doesn’t destroy my plate or nozzle, I’ll live with it.