Using the 2GBP
----------------------

1. open a terminal window

2. cd linuxcnc/configs/2gbp11a

3. run: linuxcnc 2gbp11a.ini

4. turn on box power

5. home all axes

6. use syringe adjust retract/depress buttons to align extruder

7. load g-code file with File->Open or the file folder icon

8. if electrospinning, set syringe spinning rate and press HV Armed

9. press the -> (play) button to run g-code program

NOTE - IF HV VOLTAGE READS OVER 0.8, HV IS PRESENT!


Programming
-----------------------
Commands and parameters:

M68 E0 Q0,1, or 2	0=idle 1=mL/mm 2=mL/hr
M68 E1 Qxx	Extrude rate, either mL/mm or mL/hr
M68 E2 Q0 or 1		0=HV off, 1=HV on if armed (eventually 0 or hv val)

There are four modes of operation:
1. bioprinting:			o<biop> call xx
	- extrusion in mL/mm rate	M68 E0 Q1
					M68 E1 Qxx
	- no hv				M68 E2 Q0

2. electroprinting or nfes:	o<ep> call xx vv
	- extrusion in mL/mm		M68 E0 Q1
					M68 E1 Qxx
	- hv enabled			M68 E2 Q1

3. electrospinning:		o<es> call xx vv
	- extrusion in mL/hr		M68 E0 Q2
					M68 E1 Qxx
	- hv enabled			M68 E2 Q1

4. no-print motion:		o<noext> call
	- no extrusion			M68 E0 Q0
	- no hv				M68 E2 Q0

To extrude (3d print) at 0.1mL/mm rate:

	o<biop> call 0.1

To electroprint at 0.1mL/mm at 10kv:

	o<ep> call 0.1 10000

To electrospin at 0.01mL/hr rate at 10kv for 10min:

	o<es> call 0.01 10000
	G4 P600

To stop extruding or electrospinning:

	o<noext> call