New to the duet COMPLETE NEWBIE

gabrealek · 21 Jan 2021, 21:56

@Phaedrux
1/21/2021, 4:54:38 PM m119
Endstops - X: not stopped, Y: not stopped, Z: at min stop, Z probe: at min stop

gabrealek · 21 Jan 2021, 21:59

@Phaedrux
yes. Z is still triggered .

gabrealek · 21 Jan 2021, 22:00

@gabrealek

Endstops - X: not stopped, Y: at min stop, Z: at min stop, Z probe: at min stop

Y is triggered but Z is not at the moment and it still reads as "triggered". .

gabrealek · 21 Jan 2021, 22:03

@Phaedrux They are all moving correctly . im about to move it to the center to see if its still triggered. .

m119
Endstops - X: not stopped, Y: not stopped, Z: not stopped, Z probe: at min stop

YAYYYYYY

gabrealek · 21 Jan 2021, 22:04

@Phaedrux
1/21/2021, 5:04:08 PM G28
Error: G0/G1: insufficient axes homed

Does this mean i have to home them all individually at this point?

G1 (H1) Z18 F480000 ; lift Z relative to current position
would this work?

Phaedrux · 21 Jan 2021, 22:46

@gabrealek said in New to the duet COMPLETE NEWBIE:

So just the first H2 right?

Nope, just the one for the XY axis move. G1 H2 X5 Y5 F480000 ; go back a few mm

gabrealek · 21 Jan 2021, 23:20

@Phaedrux So do i change the value for F480000?
As in go back a few MM i took it down to

G91 ; relative positioning
G1 Z18 F480000 ; lift Z relative to current position
G1 H1 X-300 Y-300 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F480000 ; go back a few mm
G1 H1 X-300 Y-300 F3600 ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z-400 F3600 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z0 ; set Z position to axis minimum (you may want to adjust this)

So now when i try to homeall i cannot, it gives me

G28
Error: G0/G1: insufficient axes homed

So now its

G91 ; relative positioning
G1 Z18 F480000 ; lift Z relative to current position
G1 H1 X-300 Y-300 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F480000 ; go back a few mm
G1 H1 X-300 Y-300 F3600 ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z-400 F3600 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z0 ; set Z position to axis minimum (you may want to adjust this)

fcwilt · 22 Jan 2021, 00:49

@gabrealek said in New to the duet COMPLETE NEWBIE:

I think this should work. Since you have a Z end stop you can start by homing Z.

My printers don't allow for homing X and Y at the same time - so I don't even know if it is possible. If not just do them one axis at a time.

Add/Adjust F params as desired.

JOOC where did the 480,000 value come from? That is rather fast.

  G91
 G1 H1 Z-400 F3000
 G92 Z0 ; change Z0 to match the actual Z co-ordinate at which the Z end stop triggers
 G1 Z10
 G1 H1 X-300 Y-300
 G1 X5 Y5
 G1 H1 X-6 Y-6 F300
 G90

Frederick

gabrealek · 22 Jan 2021, 02:59

@fcwilt they were generated with the config tool . . what should it be set to?

Phaedrux · 22 Jan 2021, 03:09

@gabrealek said in New to the duet COMPLETE NEWBIE:

G91 ; relative positioning
G1 Z18 F480000 ; lift Z relative to current position
G1 H1 X-300 Y-300 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 H2 X5 Y5 F480000 ; go back a few mm
G1 H1 X-300 Y-300 F3600 ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z-400 F3600 ; move Z down stopping at the endstop
G90 ; absolute positioning

The reason for the error is because you've taken the H2 off of the Z move at the start and end. Those were ok. I just wanted you to remove it from the XY move in the middle.

This would work, but @fcwilt provided a better option anyway that homes the Z axis first.

 G91 ; relative positioning
G1 H2 Z18 F6000 ; lift Z relative to current position
G1 H1 X-300 Y-300 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F6000 ; go back a few mm
G1 H1 X-300 Y-300 F3600 ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z-400 F3600 ; move Z down stopping at the endstop
G1 Z5 ; back off
G1 H1 Z-400 F600 ; home z again slowly
G90 ; absolute positioning

F480000 is 8000mm/s which is really fast. But it wouldn't actually be able to use that speed because the max speed limit set in config.g is 6000mm/min which is a good cruising around speed (100mm/s)

gabrealek · 22 Jan 2021, 03:18

@Phaedrux Okay.
With both of them my z wont go any lower than the middle. i cant get close to the bed at all . .

Phaedrux · 22 Jan 2021, 03:20

If you send just G1 H1 Z-400 F600 in the console does it move the z axis down to the endstop or does it just sit there and change the z axis position to 0?

gabrealek · 22 Jan 2021, 03:22

@Phaedrux said in New to the duet COMPLETE NEWBIE:

G1 H1 Z-400 F600

It just sits there. when i press home z it goes higher. when i try to bring it back down it does nothing.

gabrealek · 22 Jan 2021, 03:24

@Phaedrux
; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v3.2.1 on Tue Jan 19 2021 17:33:25 GMT-0500 (Eastern Standard Time)

G91 ; relative positioning
G1 H2 Z18 F6000 ; lift Z relative to current position
G1 H1 X-300 Y-300 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
G1 X5 Y5 F6000 ; go back a few mm
G1 H1 X-300 Y-300 F3600 ; move slowly to X and Y axis endstops once more (second pass)
G1 H1 Z-400 F3600 ; move Z down stopping at the endstop
G1 Z5 ; back off
G1 H1 Z-400 F600 ; home z again slowly
G90 ; absolute positioning

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v3.2.1 on Tue Jan 19 2021 17:33:25 GMT-0500 (Eastern Standard Time)
G91 ; relative positioning
G1 H2 Z18 F6000 ; lift Z relative to current position
G1 H1 Z-405 F6000 ; move Z down until the endstop is triggered
G92 Z0 ; set Z position to axis minimum (you may want to adjust this)
; set Z position to axis minimum (you may want to adjust this)

Phaedrux · 22 Jan 2021, 03:25

And does it set the current position to Z0?

Check M119 again please. It sounds like the endstop is already triggered at the start, so it won't move any further.

gabrealek · 22 Jan 2021, 03:28

@Phaedrux said in New to the duet COMPLETE NEWBIE:

M119

M119
Endstops - X: not stopped, Y: not stopped, Z: at min stop, Z probe: at min stop

Phaedrux · 22 Jan 2021, 03:29

And just to be clear, when you sent M119 the z endstop wasn't actually pressed, right?
Quick photo of the z endstop?

Maybe you DO need the ! to invert the Z endstop?

gabrealek · 22 Jan 2021, 03:36

@Phaedrux

Okay

gabrealek · 22 Jan 2021, 03:48

@Phaedrux I inverted it and it went down so far it cracked the glass .

fcwilt · 22 Jan 2021, 03:57

@gabrealek said in New to the duet COMPLETE NEWBIE:

@Phaedrux I inverted it and it went down so far it cracked the glass .

When configuring a printer for the first time you need to take certain precautions.

For instance you can trigger an end stop switch by hand to verify that it stops the movement of the axis when it should.

In this case you would start from far the bed, being homing, hit the end stop switch and confirm movement stops.

If it didn't you can kill power before something breaks - like you piece of glass.

Also you can force very slow speeds by editing your M203 command to something like

M203 X500 Y500 Z500

which gives you more time to observe and react if something starts to go wrong.

Did you use my homing code?

We can get things working - just take it one step at a time.

Frederick

	G91
	G1 H1 Z-400 F3000
	G92 Z0 ; change Z0 to match the actual Z co-ordinate at which the Z end stop triggers
	G1 Z10
	G1 H1 X-300 Y-300
	G1 X5 Y5
	G1 H1 X-6 Y-6 F300
	G90

	G91 ; relative positioning
	G1 H2 Z18 F6000 ; lift Z relative to current position
	G1 H1 X-300 Y-300 F3000 ; move quickly to X and Y axis endstops and stop there (first pass)
	G1 X5 Y5 F6000 ; go back a few mm
	G1 H1 X-300 Y-300 F3600 ; move slowly to X and Y axis endstops once more (second pass)
	G1 H1 Z-400 F3600 ; move Z down stopping at the endstop
	G1 Z5 ; back off
	G1 H1 Z-400 F600 ; home z again slowly
	G90 ; absolute positioning