Hypercube Fusion movement help

RAM

@Phaedrux thank you very much

Phaedrux

Ok a couple more questions.

Which motor is plugged into which driver? I know we did some swapping, but how are they connected right now?

We're gonna try and make your configuration match my own, so here's what I have.

The left motor is connected to the X driver, the right motor is connected to the Y driver.

Then in the drives section for motor direction I have the opposite of you.

you have:

; Drives
M569 P0 S1
M569 P1 S1

I have:

; Drives
M569 P0 S0
M569 P1 S0

So make those changes to the motor wiring and the direction of rotation, and then do those motor tests again.

Also, when you say

G1 S2 X10 moves forwards and to the left
G1 S2 Y10 moves forwards and to the right

Does forwards mean towards the front of the printer or towards the back of the printer?

Phaedrux

@RAM said in Hypercube Fusion movement help:

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Sun Jan 26 2020 18:02:23 GMT+0000 (Greenwich Mean Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G1 H1 Y-325 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y5 F6000 ; go back a few mm
G1 H1 Y-325 F360 ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000 ; lower Z again
G90 ; absolute positioning

Once we have the directions sorted out the homeY will also need to change from that to this:

; homey.g
; called to home the Y axis
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Sun Jan 26 2020 18:02:23 GMT+0000 (Greenwich Mean Time)
G91               ; relative positioning
G1 H2 Z5 F6000    ; lift Z relative to current position
G1 H1 Y325 F1800 ; move quickly to Y axis endstop and stop there (first pass)
G1 Y-5 F6000       ; go back a few mm
G1 H1 Y325 F360  ; move slowly to Y axis endstop once more (second pass)
G1 H2 Z-5 F6000   ; lower Z again
G90               ; absolute positioning

And your homez should use the same X Y position to probe the bed as used in home all. Right now you have

G90               ; absolute positioning
G1 X-18 Y15 F6000 ; go to first probe point
G30               ; home Z by probing the bed

Except in your homeall right now it doesn't make a lot of sense.

G90
G1 X150 
G1 Y146 Y130 F6000      ; go to first bed probe point and home Z
G30

The first one moves to just an X position, and the second line has two Y values. So I'm guessing it should be G1 X150 Y130 F6000 instead

RAM

@Phaedrux
Left motor is plugged into the X axis
Right motor is plugged into the Y axis

My motors are at the front of my machine

G1 S2 X10 moves to the rear right corner
G1 S2 Y10 moves to the front right corner (diagonally towards the front where the Y axis motor is)

X -10 moves right
X +10 moves left

Y -10 moves to the rear
Y +10 moves to the front
If I now try and home X & Y indiviually they move away from the endstops.
(If looking at the machine from the front the Y enstop is at the rear left and the X is on the left)

Also changed the home files as instructed to.

Homeall.g

; homeall.g
; called to home all axes
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Sun Jan 26 2020 18:02:23 GMT+0000 (Greenwich Mean Time)
G91                     ; relative positioning
G1 H2 Z5 F6000          ; lift Z relative to current position
G1 H1 X-315 F1800   	; move quickly to X or Y endstop and stop there (first pass)
G1 X5 F6000          	; go back a few mm
G1 H1 X-315 F360        ; move slowly to X axis endstop once more (second pass)
G1 H1 Y325 F1800            	; home Y axis
G1 Y-15 F6000          	; go back a few mm
G1 H1 Y315 F360        	; move slowly to X axis endstop once more (second pass)
G90                     ; absolute positioning
G1 X150 
G1 X150 Y130 F6000      ; go to first bed probe point and home Z
G30                     ; home Z by probing the bed
;G1 X0 Y0 Z5 		; return to a parked position

Homez.g

; homez.g
; called to home the Z axis
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Sun Jan 26 2020 18:02:23 GMT+0000 (Greenwich Mean Time)
G91 ; relative positioning
G1 H2 Z5 F6000 ; lift Z relative to current position
G90 ; absolute positioning
G1 X150 Y130 F6000 ; go to first probe point
G30 ; home Z by probing the bed

; Uncomment the following lines to lift Z after probing
;G91 ; relative positioning
;G1 Z5 F100 ; lift Z relative to current position
;G90 ; absolute positioning

Phaedrux

is that with the change to the drive direction?

; Drives
M569 P0 S0
M569 P1 S0

RAM

@Phaedrux yes I changed the config.g to
; Drives
M569 P0 S0
M569 P1 S0

Phaedrux

I'm at a bit of a loss currently.

With the config as it is, I can't explain why the Y axis is still flipped from what it should be, yet the individual motor tests produce the correct motion.

I'll need to sleep on it.

RAM

@Phaedrux no problem, would it help to know what motors I am using ?

Phaedrux

Maybe. It may help to know how the phases are wired at the plug.

RAM

@Phaedrux here you go hopefully this will help. 17HS15-1504S-X1.pdf
I never even gave this a thought when I was plugging in the motor connectors I think they could be wrong from looking at the pdf and the duet 2 wifi wiring diagram.
In true bonehead fashion I was looking where the black wire was to which way it needed to go on the duet and didn't give the others a thought. I really need to stop building things at 2am.

Looking at the pdf and the duet wiring diagram and my thinking is this. (Hope this makes sense)
2B 2A 1A 1B
Red Blue Green Black this is how it is on the Duet

My motors come wired up as

A A\ B B
Black Green Red Blue

Now I can only assume that e.g A would be 1A & A\ would be 2A. If I am thinking on the right path then do I need to move the pins around on the duet connection end of the motor leads so that they are in this order.

DUET BOARD
2B 2A 1A 1B
Red Blue Green Black

MOTOR PLUG

B\ A\ A B
Blue Green Black Red

If I am wrong then I have no clue which is probably more than likely.

Phaedrux

I think the way you have them wired is alright, just that the pairs are swapped such that the rotation direction is reversed from how it's expected. Which is fine because it can be altered in software anyway with the drive direction command.

If you had the motor pairs wired in an unmatched fashion it wouldn't spin and you'd get some warnings in the console. It can also potentially cause damage.

The whole 1A 1B 2A 2B A A/ B B/ thing is pretty confusing, I agree.

In your case though by the look of the motor spec PDF the colors of the wires look like they actually match the colors of the plugs on the duet wiring diagram, which isn't always the case.

So on the motor the pair is denoted by the letters (A's together and B's together). And on the duet the pairs are denoted by the numbers (1's together, and 2's together).

So in the PDF it says that black (A) and green (A/) are a coil pair, and red (B) and blue (B/) are a coil pair.

And on the duet black (1B) and green (1A) are a pair, and red (2B) and blue (2A) are a pair.

So
black (A) to black (1B),
green (A/) to green (1A),
red (B) to red (2B),
blue (B/) to blue (2A).

I hope that makes sense.

If you decide to swap them around to match the colors I think that would verify that the rotation direction changes.

RAM

@Phaedrux ok im confused sorry.
Do I wire them in the order of

black (A) to black (1B),
green (A/) to green (1A),
red (B) to red (2B),
blue (B/) to blue (2A).

Which I don't understand as the order of the pair looking at the wiring diagram on the duet 2 it shows that it is.

black (A) to black (1B),
green (A/) to green (1A),
blue (B/) to blue (2A).
red (B) to red (2B),

Phaedrux

I'll have to double check when I get back home butt I though I had it right...

RAM

@Phaedrux I have just changed it so that it is
black (A) to black (1B),
green (A/) to green (1A),
blue (B/) to blue (2A).
red (B) to red (2B)

I will run simple move tests and let you know what it is doing.

dc42

@RAM said in Hypercube Fusion movement help:

G1 S2 X10 moves to the rear right corner
G1 S2 Y10 moves to the front right corner

Did you remember to send G91 before sending those commands?

RAM

@dc42 I sent these commands after manually moving the print head to the middle of the bed.

G92 X150 Y150 Z5

then followed by these

G1 S2 X10

G1 S2 Y10

I have changed the motor wires around so that they are:
black (A) to black (1B),
green (A/) to green (1A),
blue (B/) to blue (2A).
red (B) to red (2B)

then I run the tests sending the above commands and also using the DWC to do the +/- Y & X axis moves.

I get the following
-x moves left
+x moves right
-y moves to the front of the printer
+y moves to the rear of the printer

duet moves.jpg

dc42

You must send G91 before testing the motors with those G1 S2 commands. Try it and I think you will see the motors move in different directions, which will end @Phaedrux's confusion.

The responses to jogging in the + and - X and Y directions look correct now.

RAM

@dc42 you will have to forgive me I am useless with gcode.

so do I send

G91 then G1 S2 Y10 ? or all together as 1 string ?

dc42

@RAM said in Hypercube Fusion movement help:

@dc42 you will have to forgive me I am useless with gcode.

so do I send

G91 then G1 S2 Y10 ? or all together as 1 string ?

Either will work.

RAM

@dc42
G91 G1 S2 X10 now moves diagonally from left front to right rear
G91 G1 S2 Y10 now moves diagonally from left rear to right front

duet movesG91.jpg