Here is slicer Gcode
G1 Z5.1 F5000 ; lift nozzle

here is some gcode that I am printing now.
this is the top few lines
; generated by Slic3r 1.1.7 on 2015-01-28 at 21:46:19

; perimeters extrusion width = 0.40mm
; infill extrusion width = 0.67mm
; solid infill extrusion width = 0.67mm
; top infill extrusion width = 0.67mm
; support material extrusion width = 0.40mm

G21 ; set units to millimeters
M107
M190 S90 ; wait for bed temperature to be reached
M104 S210 ; set temperature

G1 Z5.1 F5000 ; lift nozzle

M109 S210 ; wait for temperature to be reached
G90 ; use absolute coordinates
G92 E0
M82 ; use absolute distances for extrusion
G1 F900.000 E-1.50000
G92 E0
G1 Z0.300 F2400.000
G1 X90.022 Y91.544 F2400.000
G1 E1.50000 F900.000
G1 X92.200 Y90.829 E1.64495 F480.000
G1 X107.800 Y90.829 E2.63131
G1 X109.456 Y91.223 E2.73893
G1 X110.756 Y92.322 E2.84655 F480.000
G1 X111.471 Y94.500 E2.99150
G1 X111.471 Y105.500 E3.68701
G1 X111.077 Y107.156 E3.79463
G1 X109.978 Y108.456 E3.90225
G1 X107.800 Y109.171 E4.04720
G1 X92.200 Y109.171 E5.03357
G1 X90.544 Y108.777 E5.14119
G1 X89.244 Y107.678 E5.24880
G1 X88.529 Y105.500 E5.39375

I have highlighted and explained the relevant lines in your gcode. They are performed in sequence down the line as the machine reads them. To do what you want you just need to change the order of two lines. The issue is that this is not something that can be changed with a modification to start setting in slicer, but needs to be edited manually each time if you want it to behave this way. There may be a setting deep in slicer somewhere in it's ini you could edit but your wanting the printer to perform in the opposite of the standard. What they want to normally happen is for the head and bed to meet as the bed is moving up. This aids in the initial bead of filament sticking. Your wanting it to do the opposite as I under stand and that will cause adhesion problems possibly.

G1 Z5.1 F5000 ; lift nozzle

here is some gcode that I am printing now.
this is the top few lines
; generated by Slic3r 1.1.7 on 2015-01-28 at 21:46:19

; perimeters extrusion width = 0.40mm
; infill extrusion width = 0.67mm
; solid infill extrusion width = 0.67mm
; top infill extrusion width = 0.67mm
; support material extrusion width = 0.40mm

G21 ; set units to millimeters
*M107 <--------Turns your Fan OFF
*M190 S90 ; wait for bed temperature to be reached <---Sets and waits for bed to reach 90.
*M104 S210 ; set temperature <--Sets Extruder to 210. Does not wait but goes to next step.

*G1 Z5.1 F5000 ; lift nozzle <---Moves bed down 5.1mm at 5000mm/m Also injected by Slicer Start Gcode setting.

*M109 S210 ; wait for temperature to be reached <---Stes Extruder to 210 waits for temp to be reached before next step..
G90 ; use absolute coordinates
*G92 E0 <---This resets your extruder feed to 0 or off
M82 ; use absolute distances for extrusion
*G1 F900.000 E-1.50000 <--- Retracts filament inside extruder 1.5mm at 900mm/m
*G92 E0 <--- This reset your extruder feed to 0 or off again,
*G1 Z0.300 F2400.000 <-- This moves your bed to your .3 offset at 2400mm/m
*G1 X90.022 Y91.544 F2400.000 <--This move your head to the print start position of X = 90.022 and Y = 91.544 at 2400mm/m
*G1 E1.50000 F900.000 <-- This compensates for that earlier retract. You see it is the same value but positive now.
*G1 X92.200 Y90.829 E1.64495 F480.000 <--Where filament starts laying down at 480mm/m for 1.64495mm.
G1 X107.800 Y90.829 E2.63131
G1 X109.456 Y91.223 E2.73893
G1 X110.756 Y92.322 E2.84655 F480.000
G1 X111.471 Y94.500 E2.99150
G1 X111.471 Y105.500 E3.68701
G1 X111.077 Y107.156 E3.79463
G1 X109.978 Y108.456 E3.90225
G1 X107.800 Y109.171 E4.04720
G1 X92.200 Y109.171 E5.03357
G1 X90.544 Y108.777 E5.14119
G1 X89.244 Y107.678 E5.24880
G1 X88.529 Y105.500 E5.39375

here is some gcode that I am printing now.
this is the top few lines
; generated by Slic3r 1.1.7 on 2015-01-28 at 21:46:19

; perimeters extrusion width = 0.40mm
; infill extrusion width = 0.67mm
; solid infill extrusion width = 0.67mm
; top infill extrusion width = 0.67mm
; support material extrusion width = 0.40mm

G21 ; set units to millimeters
M107
M190 S90 ; wait for bed temperature to be reached
M104 S210 ; set temperature

G1 Z5.1 F5000 ; lift nozzle

M109 S210 ; wait for temperature to be reached
G90 ; use absolute coordinates
G92 E0
M82 ; use absolute distances for extrusion
G1 F900.000 E-1.50000
G92 E0
G1 Z0.300 F2400.000
G1 X90.022 Y91.544 F2400.000
G1 E1.50000 F900.000
G1 X92.200 Y90.829 E1.64495 F480.000
G1 X107.800 Y90.829 E2.63131
G1 X109.456 Y91.223 E2.73893
G1 X110.756 Y92.322 E2.84655 F480.000
G1 X111.471 Y94.500 E2.99150
G1 X111.471 Y105.500 E3.68701
G1 X111.077 Y107.156 E3.79463
G1 X109.978 Y108.456 E3.90225
G1 X107.800 Y109.171 E4.04720
G1 X92.200 Y109.171 E5.03357
G1 X90.544 Y108.777 E5.14119
G1 X89.244 Y107.678 E5.24880
G1 X88.529 Y105.500 E5.39375

Thanks, but right now my printer sequence is bed moves down agter warm up and once extruder gets warmed up the bed moves up to offset position and then the extruder moves to print.
I need the extruder to move to print start position above the bed before the bed moves up to the offset position.  Ideas on how to make that happen?

Post your start gcode from the slicer and and the first 30 or so lines of one of your gcode files and I will look at the sequence and steps to see if they can be changed.

Or maybe is the way to have the head move from home position first before the bed moves to avoid the head from hitting the screw.

Normal sequence is bed moves down after warm up to about 10mm. once extruder gets warmed up the extruder moves to print start position and the bed moves up to your offset position. The link I am adding is for my EEPROM settings in XLS format so they will open in office. Feel free to try them as I have no issue with it hitting. Pay close attention to geometry like bed size, and axis max limits.

http://s000.tinyupload.com/index.php?fi … 6012070404

This link is for that actual EEPROM backup and can be imported to your EEPROM.

http://s000.tinyupload.com/index.php?fi … 4765717748

Or maybe is the way to have the head move from home position first before the bed moves to avoid the head from hitting the screw.

Normal sequence is bed moves down after warm up to about 10mm. once extruder gets warmed up the extruder moves to print start position and the bed moves up to your offset position. The link I am adding is for my EEPROM settings in XLS format so they will open in office. Feel free to try them as I have no issue with it hitting. Pay close attention to geometry like bed size, and axis max limits.

http://s000.tinyupload.com/index.php?fi … 6012070404

Sorry I was not clear. I am trying to get the bed far away from the z sensor. maybe a good 1 1/2"  away from the sensor when not printing.

That would be impossible as the logic has to see the bed at that sensor for reference for all calculations of position from that point on. You will need to build an extension bracket of the exact size you need and remount the sensor. The printer will not even start printing if it does not see that the bed is at that sensor and the sensor is tripped.

Thank you very much I did read it and tryed it, but the bed still is to high?

You used the jog controls to nudge to where it just grabs paper or a feeler gauge? Also what do you mean by too high? It can not go higher than the otpo sensor at the back above the bed. That is the home position. You can change it by creating an off set either in the EEPROM or in the slicer that it will move to when it begins to print. But when it is not printing it will always be at the level of that sensor.

This is what you need to follow and pay very close attention to..

Home machine. Use fast position menu to bring z to 10 and x and y to nominal positions for you to work with so that nozzel is above the glass working area, 50 50 should be good. take a scrap of paper and place it on the glass bed and lower the z till the paper just begins to grab in the gap. The z height is the negative value to add to the eeprom z position. IE my height was 3.0 I made z home position -3. Power cycle the machine. without homing and move the head around the build are to ensure there are no areas of dragging or excessive gaps.

Shouldn't the code a a letter Y in it not x?   Also I am trying to get the Z (bed) to be a bit lower in the home position but not sure how? I changed the Z home position in the EEMprom config but no matter what numbers I put in there the Bed still is at the same home position height?  confused

Read the wall of text I posted to reset the z home..

I also changed the letter in the code. I caught it before you posted and I guess you read before I corrected.