Printer &/or Extruder GCODE Sidewinder X1 help?

[Magnaclese 0]

Hi - I'm using a Sidewinder X1 & CURA 4.5.  I am still learning everything about CURA & Printing.  This is my 1st post, but I have been reading posts here for a bit.

 

I  know my bed has a slight warp, so I installed Mat's  

EZY3D LAB1 MBL upgrade.  The install all looks good, but the printer still makes hay.  I noticed CURA 4.5 has printer & extruder Start & End GCODE.  Should the start GCODE be the same for the printer & the extruder?  This is the GCode that Mat sent me, I have the same script in the printer & extruder start gcode.

 

G28 ; Home all axes

M420 S1; MBL

G92 E0 ; Reset Extruder

G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed

G1 X0.1 Y20 Z0.3 F5000.0 ; Move to start position

G1 X0.1 Y200.0 Z0.3 F1500.0 E15 ; Draw the first line

G1 X0.4 Y200.0 Z0.3 F5000.0 ; Move to side a little

G1 X0.4 Y20 Z0.3 F1500.0 E30 ; Draw the second line

G92 E0 ; Reset Extruder

G1 Z2.0 F3000 ; Move Z Axis up little to prevent scratching of Heat Bed

 

 

 

[Magnaclese 0]

Also, does it matter if I use the USB vs. the SD drive?