Hello. I have recently been given a E 3d BOGBOX duel head extruder printer. I have been told the printer has never worked from day one since it was purchased and assembled. i hve played around with it some and have gone over the set up for the Rumba board again. So i now have the screen showing me an interface with a "Bed overheat" alarm. and since the person I got this from has been through 4 boards trying to get this to work I have decided to purchase an Duet wifi board and and a 7" screen to go with it. My problem now is i am new to 3D printing and was wondering if anyone has any good tips on to accomplish this rebuild. plus setting up the new board and screen as well. thanks

@phaedrux
ok very good board in and is printing, poorly right now but printing.
here is my files to the E3D Big Box with single head print for now. my config.g file. this works on my unaltered E3D big box printer with the Duel wifi board.

; Configuration file for Duet WiFi (firmware version 3)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool v3.2.3 on Tue May 25 2021 18:51:26 GMT-0400 (Eastern Daylight Time)

; General preferences
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"big Print 1" ; set printer name
;M669 K1 ; select CoreXY mode

; Network
M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet

; Drives
M569 P0 S1 ; physical drive 0 goes forwards
M569 P1 S1 ; physical drive 1 goes forwards
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S1 ; physical drive 3 goes forwards
M584 X0 Y1 Z2 E3 ; set drive mapping
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation
M92 X160.00 Y320.00 Z1600.00 E274.00 ; set steps per mm
M566 X900.00 Y900.00 Z60.00 E120.00 ; set maximum instantaneous speed changes (mm/min)
M203 X6000.00 Y6000.00 Z180.00 E1200.00 ; set maximum speeds (mm/min)
M201 X500.00 Y500.00 Z20.00 E270.00 ; set accelerations (mm/s^2)
M906 X800 Y800 Z800 E800 I30 ; set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout

; Axis Limits
M208 X0 Y0 Z0 S1 ; set axis minima
M208 X250 Y200 Z290 S0 ; set axis maxima

; Endstops
M574 X1 S1 P"xstop" ; configure active-high endstop for low end on X via pin xstop
M574 Y1 S1 P"ystop" ; configure active-high endstop for low end on Y via pin ystop
M574 Z2 S2 ; configure Z-probe endstop for high end on Z

; Z-Probe
;M558 P1 C"zprobe.in" H5 F120 T6000 ; set Z probe type to unmodulated and the dive height + speeds
M558 P5 C"e0stop" H5 F120 T3000 ; Z probe connected to E0 endstop input
;M558 H30 ;*** Remove this line after delta calibration has been done and new delta parameters have been saved
G31 P500 X33 Y26 Z1.5 ; set Z probe trigger value, offset and trigger height
M557 X15:250 Y15:200 S20 ; define mesh grid

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B0 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S120 ; set temperature limit for heater 0 to 120C
M308 S1 P"e0temp" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin e0temp
M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M143 H1 S280 ; set temperature limit for heater 1 to 280C

; Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 F0 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets
G10 P0 R160 S220 ; set initial tool 0 active and temp 240C and standby temperature to 160C

; Custom settings are not defined

; Miscellaneous
M575 P1 S1 B57600 ; enable support for PanelDue
M501 ; load saved parameters from non-volatile memory
M911 S10 R11 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; set voltage thresholds and actions to run on power loss

thank you for your help.

@testpro
100mm_Rounded_Cube.gcode BB.gcode

Sorry this is the latest and best print file i have at this time. the one above is an older version of this file.

@phaedrux
100mm_Rounded_Cube.gcode 1_MAKE_Robot_V6.gcode

ok i have gave you the gcode for the Cube which printed very well and then the make robot which is not printing so well at this time.

@testpro

at this point the objects are now printing in the center of the bed. so that is cleared up for now.

i have found the reason why the Z axis was bit incrementing. in the slicer Prusa 2.3.3 under print settings. Custom G code i had the following:

G28 ;home all axes
G29 S1 ;allows bed compensation
G1 Z5 F5000 ; lift nozzle

this would not let the Z axes increment while printing but i changed it to this :

G28 ;home all axes
G1 Z5 F5000 ; lift nozzle
G29 S1 ;allows bed compensation

and it now works just fine. why is this an issue? or did i just stumble on to a bug?

@testpro
after doing the manual bed leveling several times my height map is -0.22 to 0.021.

so pretty even at this point.

@phaedrux

the file format is not allowed. and no more offsets for the tools at this time.

100mm_Rounded_Cube.txt

still can not figure out why z will not increment with the bed compensation working.

100mm_Rounded_Cube.gcode

ok first test print incremented as it should while printing the first layer and fine tuning it.

once i confirmed the Z was incrementing for the steps of adjustments and for the second layer. i did another test print but this time i added in the bed compensation and now it will not let the Z axis increment and will not increment on second layer either.

[0_1629147063561_100mm_Rounded_Cube.3mf](Uploading 100%)

@phaedrux

ok at this point i have cleaned out all the slicer files from the last month of trying to get this to work.

I also took out the slicer completely from my machine and reinstalled a new fresh copy of the Prusa slicer 2.3.3.

i did mover the origin back to the front front left corner in the slicer as well. so this is where it homes for now. i would like it to home in the center but this is not practical at this time.

now i have ran through the slicer again with the factory settings and put the basic information in and now the Z works pushing the nozzle closer or away with the touch screen baby steps. Plus the printer now increments for the layers where before it did not.

what part of the slicer settings you need to see?

@fcwilt
yes it does and that is done my end. except my Y = 200. and the print never comes out in the center of the bed at all. if i have this way as you have it shown it will print front left hand side and if i move the item to the far back right and then slice it still comes up front to the right but not as far. but if i move the item to far back right in slicer it is off the bed in slicer and will not slice.

so at this time i have the origin set to x=0 y=0 just so i can get it on the board. still not right at this point.

@phaedrux
ok yes a little more detail on my part would help.

1. the slicer is set to 15 x, 100y for the center of the bed and the machine homes close to it 170 x, 85 y.

I don't understand what you mean here.

1A) in the Prusa slicer i have set the origin of E0 to X= 150 Y= 100, this will put the Print dead center of the of build plate. but when it prints there is only a fraction of the Print Cube on the front left corner of the print bed.

2. i set this cube up for printing dead center of the board but when it runs it the back right corner around y= -80 & x= -100 to -150. which it the front left corner of the board.

I don't understand what you mean with this either.

2A) This is stating when i print the print is in the front left of the print bed in reality but in Prusa slicer it is dead center of the build plate.

@testpro
Yes i defiantly have something wrong with the set up of the Duet board in software or in the slicer Prusa.

i went over the slicer setting and basically have the bare minimum setting i think, the slicer is set to 15 x, 100y for the center of the bed and the machine homes close to it 170 x, 85 y.

i set this cube up for printing dead center of the board but when it runs it the back right corner around y= -80 & x= -100 to -150. which it the front left corner of the board. wired.