Since update… this message when Homing

peirof

Hi,

Since i have updated to 1.20, when i Homing, i have this message in console

[[language]]
Error: Attempt to move the head of a Delta or SCARA printer before homing it

Why?

dc42

I presume your printer is a delta. What commands do you have in your homing file?

Dougal1957

I get the same behaviour as well David but it just continues and the warning goes away after a few secs so doesn't bother me

; homedelta.g
; called to home all towers on a delta printer
;
; generated by RepRapFirmware Configuration Tool on Fri Jul 07 2017 14:49:07 GMT+0100 (BST)

; Use relative positioning
G91

; Move all towers to the high end stopping at the endstops (first pass)
;*** Slow homing has been configured. Change F600 to F6000 below when your configuration is working
G1 X585 Y585 Z585 F6000 S1

; Go down a few mm
G1 X-5 Y-5 Z-5 F6000 S2

; Move all towers up once more (second pass)
G1 X10 Y10 Z10 F360 S1

; Move down a few mm so that the nozzle can be centred
G1 Z-5 F6000

; Switch back to absolute positioning and go to the centre
G90
G1 X0 Y0 F6000

bed.g start M561
G1 X0 Y0
; Home all towers
G28

the G1 at the start is the cause

Doug

dc42

@Dougal1957:

I get the same behaviour as well David but it just continues and the warning goes away after a few secs so doesn't bother me

…

bed.g start M561
G1 X0 Y0
; Home all towers
G28

the G1 at the start is the cause

Doug

Just to be clear, that would be the G1 X0 Y0 command in bed.g, which would provoke that message if you run auto delta calibration without homing the machine first.

Dougal1957

yes indeed although I have a G28 at the end of my Config.g as well so as I say it doesn't come up then (just tested it But I have seen the error in Version prior to 1.20).

peirof

Hi…

My bed.g

[[language]]
; bed.g; bed.g file for RepRapFirmware, generated by Escher3D calculator
; 16 points, 6 factors, probing radius: 140, probe offset (0, 0)

M561                        ; clear any bed transform, otherwise homing may be at the wrong height
G31 X0 Y0                    ; don't want any probe offset for this
G28                            ; home the printer

G30 P0 X0.00 Y140.00 Z-99999 H0
G30 P1 X89.99 Y107.25 Z-99999 H0
G30 P2 X137.87 Y24.31 Z-99999 H0
G30 P3 X121.24 Y-70.00 Z-99999 H0
G30 P4 X47.88 Y-131.56 Z-99999 H0
G30 P5 X-47.88 Y-131.56 Z-99999 H0
G30 P6 X-121.24 Y-70.00 Z-99999 H0
G30 P7 X-137.87 Y24.31 Z-99999 H0
G30 P8 X-89.99 Y107.25 Z-99999 H0
G30 P9 X0.00 Y70.00 Z-99999 H0
G30 P10 X60.62 Y35.00 Z-99999 H0
G30 P11 X60.62 Y-35.00 Z-99999 H0
G30 P12 X0.00 Y-70.00 Z-99999 H0
G30 P13 X-60.62 Y-35.00 Z-99999 H0
G30 P14 X-60.62 Y35.00 Z-99999 H0
G30 P15 X0 Y0 Z-99999 S6

G1 X10 Y10 F5000

M500

dc42

I suspect the problem lies in your homedelta.g file.