Issues setting up duet wifi with dual x axis motors and endstops

dc42

@wingtip said in Issues setting up duet wifi with dual x axis motors and endstops:

Ok... im getting frustrated here but i think we're close. So right now here are my versions now.
Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
Firmware Electronics: Duet WiFi 1.02 or later
Firmware Version: 2.04 (2019-11-01b1)
WiFi Server Version: 1.23
Web Interface Version: 1.21.2-dc42

I also removed the Endstop line for E as mentioned. I verified the x2 endstop is in fact working and triggering when viewing the machine properties window. but im still not able to stop the x2 motor/aka U drive thats plugged into the E1 port with the enstop thats plugged into the E1 enstop port.

Looking at this image

the green circle shows the x1 motor/vertical post. the motor is currently at mid travel OFF the endstop and is displaying the correct status. This motor also stops correctly when it does get to the endstop

the red circle shows the x2 motor/vertical post that is plugged into the E1 motor port which is remapped to U4. The endstop is plugged into the E1 port. the motor is currently at mid travel OFF the endstop and is displaying the wrong status but does trigger when manually activated. the problem is it still does not STOP the x2 motor/vertical post aka U4. the motor still just ignores this endstop

the blue circle has me really confused... why is my E0, aka extruder showing a min of 0 and a max of 800 while the E1, aka the x2 motor only shows n/a despite clearly being defined in the config to be min 0 and max 800???????? uggggg im brain fried

To see the U axis endstop properly, you need to make the U axis visible temporarily, by sending M584 P4.

wingtip

good morning gents..... so after a nights rest and calming down i found another cable this morning and tried it and bam, it recognised it and gave me the port i needed and now have my panel due working again and updated to now 1.23.2.

so i went to try to home again and same issues... so in the new web control when editing it has a g code reference where before i was using some random web page... when using the reference from the webcontrol it seems to have some more updated info and i noticed this section and thought id give it a try

M574 - RepRapFirmware 3
Parameters

Xnnn Position of X endstop: 0 = none, 1 = low end, 2 = high end.
Ynnn Position of Y endstop: 0 = none, 1 = low end, 2 = high end.
Znnn Position of Z endstop: 0 = none, 1 = low end, 2 = high end.
P"pin_name" Defines the pin name(s) that the endstop(s) for the specified axis are connected to. Needed when S=0 or S=1.
Snnn Endstop type: 0 = active low endstop input, 1 = active high endstop input, 2 = Z probe (when used to home an axis other than Z), 3 = single motor load detection, 4 = multiple motor load detection (see Notes).
Order dependency

This command must be later in config.g than the M584 command that creates additional axes, or axes that have multiple motors and endstops.

Usage

The M574 command has been updated to allow for more flexibility. This includes supporting axes defined with multiple motors and multiple endstops (one per motor), use of non-default endstop inputs, and re-assigning endstop inputs.

Notes

Use a separate M574 command for each axis.
New parameter P gives the pin name(s) for the endstop(s) for the specified axis. If the number of pins matches the number of motors assigned to that axis, motors will be stopped individually when their endstop switches trigger.
New endstop type S4 means use motor stall detection (like S3) but if there are multiple motors, stop each one individually as it stalls. S3 means use motor stall detection but as in RRF 2: stop all relevant motors when the first one stalls.
Example

Old RRF_2.x code:

M574 X1 Y1 Z1 U2 S1 ; active high endstop switches, XYZ at min, U at max
New RRF_3 code:

M574 X1 S1 P"xstop" ; X min active high endstop switch
M574 Y1 S1 P"ystop" ; Y min active high endstop switch
M574 Z1 S1 P"zstop" ; Z min active high endstop switch
M574 U2 S1 P"e0stop" ; U max active high endstop switch
To use two Z motors using independent homing switches, declare two Z motors in M584, then declare two pins for Z endstops in a single M574 command. Example

M584 X0 Y1 Z2:3 E4
M574 Z1 S1 P"io2.in+io3.in" ; Z axis with two motors, individual min endstops, active high
The order of endstop switch pin names in M574 must match the order of Z motor driver numbers in M584. When homing Z, RRF_3 homes the motors of the axis at the same time, independently to their defined endstops.

so i briefly experimented with this in hopes this would solve my issues but still nothing. And im still noticing the 2nd endstop is still triggered on the wrong end no matter which way you configure it... i think i need to follow the advice to swap to a different port instead of E1/drive 4 but im off to work now and i will do some more suffering after work lol....
endstop status 02.png

droftarts

@wingtip said in Issues setting up duet wifi with dual x axis motors and endstops:

i had to sand down my plug to skin and bones to fit in the tiny slot he left for access

Sorry you're having difficulty. Probably would have been better to modify the enclosure rather than the PanelDue, though. It sounds like you have already deleted the firmware, and the USB is not making enough of a connection on whatever remains of the USB connector. You could solder a cut off USB cable's wires direct to the PCB, on the back where the pins are accessible. I'm checking to see if there's any other way to program the PanelDue apart from via USB (edit: fixed!). Have you got a Thingiverse link to the enclosure? Worth mentioning the problem in the comments.

I'm going to try and recreate your issue with the X homing today with a really simple set up (2 motors, 2 endstops and your config and homing files). I'll let you know how I get on.

Ian

droftarts

@wingtip said in Issues setting up duet wifi with dual x axis motors and endstops:

good morning gents..... so after a nights rest and calming down i found another cable this morning and tried it and bam, it recognised it and gave me the port i needed and now have my panel due working again and updated to now 1.23.2.

Great!

so i went to try to home again and same issues... so in the new web control when editing it has a g code reference where before i was using some random web page... when using the reference from the webcontrol it seems to have some more updated info and i noticed this section and thought id give it a try

You've probably been looking at the general reprap Gcode page https://reprap.org/wiki/G-code, which may not have the latest info on it, and has multiple versions of gcodes for how each different firmware interprets the commands! Best to use the Duet-specific one we curate: https://duet3d.dozuki.com/Wiki/Gcode. There are plenty of links in the documentation to our one, and in my posts where I've referenced gcodes!

M574 - RepRapFirmware 3

Unless you've updated your Duet firmware again, you are NOT using RRF3, you're using RRF2 v2.04. Make sure you use the correct section! https://duet3d.dozuki.com/Wiki/Gcode#Section_M574_RepRapFirmware_2_x_and_earlier

so i briefly experimented with this in hopes this would solve my issues but still nothing. And im still noticing the 2nd endstop is still triggered on the wrong end no matter which way you configure it... i think i need to follow the advice to swap to a different port instead of E1/drive 4 but im off to work now and i will do some more suffering after work lol....

Okay! I'll test your setup and see what I get.

Ian

wingtip

@droftarts
Ya I realized it was a different version but I was desperate and can easily change back the few lines I edited.
I look forward to your results if you use the same ports/drives and my config.

droftarts

@wingtip

I've had some problems with this, but the outcome seems to be to plug the U endstop into E0! This works for me, even though the motor is plugged into motor drive E1. I'll check with @dc42 why this might be! On the whole, I'd just move the whole U axis to motor driver 3 (E0).

Edit: Tested, set U to driver 3 (E0) U endstop connected to E0_ENDSTOP works. In config.g change to:
M584 X0:3 Y1 Z2 U3 E4 P3
M569 P3 S0
M569 P4 S1
Also change U4 to U3 in homing files.

I think your endstops may be wired Normally Open (NO) rather than Normally Closed (NC). It says HERE that you should use the Normally Closed pins (the outer two, the three pins usually being G (Ground), NO (Normally Open) and NC (Normally Closed)) of your microswitch. It goes on to say:

... set the signal polarity to active high (S1) in the M574 command

eg yours should be:

; Endstops
M574 X1 Y1 U1 S1 ; position low, active low
M574 Z1 S2 ; set endstops controlled by probe

This should mean that:

If an endstop is not connected, the LED next to the axis motor connector will be off, and 'Triggered' will be 'Yes'
If an endstop is connected and not triggered, the LED next to the axis motor connector will be lit, and 'Triggered' will be 'No'
If an endstop is connected and triggered, the LED next to the axis motor connector will be off, and 'Triggered' will be 'Yes'

However, your config.g has the endstops triggering active low (M574 S0), and this seems to be shown in the endstop response. I have to invert mine with S1 to get the right response. The main thing is that all used endstops should report 'No' when not triggered, and 'Yes' when triggered!

Ian

dc42

I confirm, endstop switches are allocated to axes independently of stepper drivers. In RRF2 the endstop switch allocation is automatic and can't be changed. Your U axis will be allocated the first unassigned endstop, which is E0. If you created another axis such as V, that will be assigned to E1.

BTW, RRF3 handles multiple endstops on an axis automatically, without having to create additional axes.

wingtip

@dc42 soooooo are you saying for us mere mortals that i can leave the motor in its current connection in the E1/dr 4 slot but i just need to move the endstop to the E0 endstop slot? or should i move both?

wingtip

@droftarts the panel due enclosure i printed is this one
https://www.thingiverse.com/thing:3101323

droftarts

@wingtip said in Issues setting up duet wifi with dual x axis motors and endstops:

@dc42 soooooo are you saying for us mere mortals that i can leave the motor in its current connection in the E1/dr 4 slot but i just need to move the endstop to the E0 endstop slot? or should i move both?

Yes, you can leave the motor on E1/dr 4 and move the endstop to E0. Like I said in my earlier post!

Also, when I was running your config.g, I realised you must have leadscrews on your X axis, with the steps per mm of 400. However, at the speeds the axis was hitting during jogging (100mm at F6000), I got motor phase disconnection warnings, which can happen if the motor is turning faster than it can cope with, and will lead to missed steps. I was using some standard NEMA17 motors. If you are, I'd set your X axis speed limit a bit lower.

Ian

wingtip

SUCCESS!!!!! WOOHOOO.....

finally.... everything as far as the x axis is concerned is working as it should now. Thank you so much everyone. now i feel safe enough to install the cross beams to physically connect the two vertical posts.

I did get the errors you were mentioning as well... i can slow them down or up the current i suppose but i already had them to 1000 mah if i recall... what would you suggest for a max for nema 17s on lead screws... with two motors on the x it should be able to move x around without breaking a sweat... lol

Phaedrux

@wingtip said in Issues setting up duet wifi with dual x axis motors and endstops:

what would you suggest for a max for nema 17s

It's recommended to target 70-85% of max rated motor current. You can go as high as 100% of rated but the motors will get quite hot.

droftarts

@wingtip Are you running a 24V PSU? Mine is on 12V, but 24V will more than likely help you achieve higher speeds. See https://duet3d.dozuki.com/Wiki/Choosing_and_connecting_stepper_motors#Section_How_to_work_out_the_power_supply_voltage_you_need

Ian

wingtip

@droftarts

wow thats a lot of math. Im not trying to calculate a launch window and trajectory to mars..... lol.. That page talks about 150mm/s on 12v and mine is on 12v, 1000amp supply... dude im used to printing at a max of 40mm /s right now... if i got 80mm/s and kept accuracy i'd pee my pants with excitement....

If you guys want to see what im working on that requires a larger printer than my FT5..take a peek here... this is a collection of photos over the past several years of designing and redesigning, printing, redesigning, re printing, tired of paying others to print then build my own printer, then start building my big printer lol
https://www.flickr.com/photos/52018479@N03/sets/72157662139793862

Phaedrux

You're making a model of Wet Nellie!?

wingtip

@Phaedrux not just a model a functional model...

https://youtu.be/cqnuijMqxbc part 1 (a lil boring but demonstrate some of the radio functions)
https://youtu.be/PQtJsHgfmHI part 2

droftarts

@wingtip I saw that your profile image was the James Bond Lotus Esprit sub, but didn't realise you were making one!

Ian

wingtip

Heres a quick video showing you the printer ... thank you everyone.
https://youtu.be/fqf0_rCpsmg

Phaedrux

Looking good. Keep us posted on your progress. And feel free to ask for any help as you go.

wesc

@wingtip I'm fighting the same issues with dual X and dual Y motors. Can you post your final config.g and homeall.g (or homex.g)? Might be able to figure out my problem without needing to make a new post.

Thanks.