X, Y, Z Endstops intermittent connection
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I've got a Duet 3 Mini 5 with the firmware etc.: FIRMWARE_NAME: RepRapFirmware for Duet 3 Mini 5+ FIRMWARE_VERSION: 3.4.1 ELECTRONICS: Duet 3 Mini5plus WiFi FIRMWARE_DATE: 2022-06-01 21:07:06. This board is running a Creality CR-10s printer. It's stock except for a E3D V6 Volcano.
I'm having a problem with the X, Y, and Z endstops working intermittently. I was having problems with homing initially. At times the hotend wouldn't move in the home direction. It would simply move further along the axis away from home. And then it wouldn't. I'm using your "Endstops Monitor" plugin. It shows the X axis flickering as homed on and off randomly. Probably 1 or 2 times every second or 2. The Y axis is doing the same thing but not as frequently. And the Z axis is even less frequent.
I've tested all the wiring and the endstops themselves. I've tried different wiring and different endstops. I did notice that, for a while, the X axis endstop was doing the same thing without anything connected to the boards X endstop connector. And then, after awhile, it didn't.
I can't print with the hardware in this state. It's too unreliable. I'm out of ideas and beyond frustrated at this point.
I'm not sure if this is specifically where I look for support from Duet3D, but I figure it's as good a place as any. I'm really hoping it's more helpful than their documentation.
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We can rule out bad board design and/or problems with the firmware.
What sort of endstop sensors are you using?
How are the connected to the Duet?
Frederick
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@fcwilt I don't know what the brand is for the endstops but they're the stock Creality CR-10s ones. Here's a picture.
They're connected through the original Creality wiring. I've tested with different endstops from another printer that's working. Same issues. -
IF different endstop sensors are having the same problem then the wiring itself would be the next thing to suspect.
What sort of wiring is it? How long are the runs? Do they run along side any stepper or hotend wiring?
Frederick
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wiring. I've tested with different endstops from another printer that's working. Same issues.
This way, you test endstops, not the wiring. I’m pretty sure the signal line suffers from voltage fluctuations. This can happen in case of NO switches with just two lines: GND (or VCC) and signal. As long as the switch is open, the signal line hangs in the air and acts as an antenna.
Depending on your setup, a pull-up (or pull-down) resistor can stabilise the signal - if the NO switch connects to GND (i.e. active low), you can try to activate the internal pull-up of the Duet’s I/O port in your endstop configuration like this:
M574 X1 S1 P“!^io1.in"But without more information about your config.g and wiring, that’s pure speculation.
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The wiring is the stock Creality CR-10s wiring. It worked fine until I set up the new board. I've tested it all for continuity and there's no problem with that.
I hate to admit it, but I really don't understand enough to figure out the rest of your message.
What would the best way to upload my config.g?
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@phrayzur said in X, Y, Z Endstops intermittent connection:
What would the best way to upload my config.g?
From the online editor, select </> from the icons above, then, paste your config into the line between the tags.
really don't understand enough to figure out the rest of your message
Don't worry, we'll figure that out
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@infiniteloop Here's the config.g file.
; Configuration file for Duet 3 Mini 5+ (firmware version 3.3) ; executed by the firmware on start-up ; ; generated by RepRapFirmware Configuration Tool v3.3.10 on Wed Jun 15 2022 10:13:35 GMT-0600 (Central Standard Time) ; General preferences G90 ; send absolute coordinates... - ORIGINAL M83 ; ...but relative extruder moves - ORIGINAL M550 P"CR-10s Duet 3 Mini 5+" ; set printer name - ORIGINAL M918 P1 E4 F2000000 ; configure direct-connect display - ORIGINAL ; Network M552 S1 ; enable network M586 P0 S1 ; enable HTTP M586 P1 S0 ; disable FTP M586 P2 S0 ; disable Telnet ;Drives M569 P0.0 D3 V91 S1 ; physical drive 0.0 goes forwards M569 P0.1 D3 V91 S0 ; physical drive 0.1 goes forwards M569 P0.2 D3 V18 S1 ; physical drive 0.2 goes backwards M569 P0.3 D3 V18 S1 ; physical drive 0.3 goes backwards M569 P0.4 D3 V75 S0 ; physical drive 0.4 goes forwards M584 X0.0 Y0.1 Z0.2:0.3 E0.4 ; set drive mapping M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation - ORIGINAL M92 X80.00 Y80.00 Z400.00 E400.00 ; set steps per mm - ORIGINAL ; M566 X480.00 Y480.00 Z144.00 E300.00 ; set maximum instantaneous speed changes (mm/min) - ORIGINAL M566 X480.00 Y360.00 Z144.00 E300.00 ; set maximum instantaneous speed changes (mm/min) M203 X12000.00 Y12000.00 Z1200.00 E3000.00 ; set maximum speeds (mm/min) - ORIGINAL ; M201 X1000.00 Y1000.00 Z100.00 E5000.00 ; set accelerations (mm/s^2) - ORIGINAL M201 X1000.00 Y600.00 Z100.00 E5000.00 ; set accelerations (mm/s^2) M906 X800 Y800 Z800 E800 I30 ; set motor currents (mA) and motor idle factor in per cent - ORIGINAL M84 S30 ; Set idle timeout - ORIGINAL ; Axis Limits M208 X0 Y0 Z0 S1 ; set axis minima - ORIGINAL M208 X290 Y298 Z380 S0 ; set axis maxima - ORIGINAL ; Endstops M574 X1 S1 P"io5.in" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin io5.in M574 Y1 S1 P"io6.in" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin io6.in M574 Z1 S1 P"io2.in" ; configure switch-type (e.g. microswitch) endstop for low end on Z via pin io2.in ; ; Z-Probe ; M558 P0 H5 F120 T6000 ; disable Z probe but set dive height, probe speed and travel speed - ORIGINAL ; M557 X15:215 Y15:195 S20 ; define mesh grid - ORIGINAL ; Bed Heater M308 S0 P"temp0" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin temp0 - ORIGINAL M950 H0 C"out0" T0 ; create bed heater output on out0 and map it to sensor 0 - ORIGINAL ; M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit - ORIGINAL M307 H0 R0.154 K0.181:0.000 D0.69 E1.35 S1.00 B0 V12.1; disable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 - ORIGINAL M143 H0 S120 ; set temperature limit for heater 0 to 120C - ORIGINAL ; Hotend Heater ; M308 S1 P"temp1" Y"thermistor" T100000 B4138 ; configure sensor 1 as thermistor on pin temp1 - ORIGINAL M308 S1 P"temp1" Y"thermistor" T100000 B4725 C7.06e-8 ; configure sensor 1 as thermistor on pin temp1 M950 H1 C"out1" T1 ; create hotend heater output on out1 and map it to sensor 1 - ORIGINAL ; M307 H1 B0 S1.00 ; disable bang-bang mode for hotend heater and set PWM limit - ORIGINAL M307 H1 R1.293 K0.255:0.000 D6.03 E1.35 S1.00 B0 V12.1 ; disable bang-bang mode for hotend heater and set PWM limit M143 H1 S285 ; set temperature limit for hotend heater 1 to 285C - ORIGINAL ; Fans M950 F0 C"out3" Q500 ; create fan 0 on pin out3 and set its frequency - ORIGINAL ; M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off - ORIGINAL M106 P0 C"Part Cooling Fan" S0 H-1 ; set fan 0 value. Thermostatic control is turned off M950 F1 C"out4" Q500 ; create fan 1 on pin out4 and set its frequency - ORIGINAL ; M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on - ORIGINAL M106 P1 C"Hotend Fan" S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on M950 F2 C"out5" Q500 ; create fan 2 on pin out5 and set its frequency - ORIGINAL ; M106 P2 S1 H-1 ; set fan 2 value. Thermostatic control is turned off - ORIGINAL M106 P2 C"CaseFan" S1 H-1 ; set fan 2 name and value. Thermostatic control is turned off ; Tools M563 P0 S"V6 Volcano" D0 H1 F0 ; define tool 0 - ORIGINAL ; G10 P0 X0 Y0 Z0 ; set tool 0 axis offsets - ORIGINAL G10 P0 X0 Y5 Z0 ; set tool 0 axis offsets G10 P0 R0 S0 ; set initial tool 0 active and standby temperatures to 0C - ORIGINALI'm sorry about the lack of understanding of the terminology. Electrical isn't my forte
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@phrayzur Thanks for the config. You've connected the end stops to io_2, io_5 and io_6 of your Duet. Can you please post a photo of these ports (with plugs) so that I can see which pins are connected?
In your original post, you mentioned some improper axis movement: does this still happen?
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@infiniteloop I really appreciate the help. Thank you.
Here's the photo...
The improper axis movement does still happen. I believe what it is is when homing the axis, it initially doesn't check to see if the endstop is triggered and moves away from the home position. Then, after moving away, it checks the endstop trigger and if it's registering as triggered then it stops where it is.
It seems like all the problems happen much more frequently with the X axis then about half as much with the Y axis and only occasionally with the Z axis.
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@phrayzur said in X, Y, Z Endstops intermittent connection:
Here's the photo...
Thank you. I see that you connected GND and io.in - that's fine. Am I right that, at the switches, the two outer pins (S and V) are wired?
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@infiniteloop That's right
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@phrayzur OK. This means that the endstops are NC (normally closed) until they are "activated" - then, the contact is opened. That's a good thing, as the signal is normally pulled to GND. As long as the connection isn't loose (connectors, crimps, somewhere along the line), you should get a stable reading.
However, that's not what you experience, so let's try a modification of your config.g: Change this
; Endstops M574 X1 S1 P"io5.in" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin io5.in M574 Y1 S1 P"io6.in" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin io6.in M574 Z1 S1 P"io2.in" ; configure switch-type (e.g. microswitch) endstop for low end on Z via pin io2.ininto this:
; Endstops M574 X1 S1 P"^io5.in" ; configure switch-type (e.g. microswitch) endstop for low end on X via pin io5.in M574 Y1 S1 P"^io6.in" ; configure switch-type (e.g. microswitch) endstop for low end on Y via pin io6.in M574 Z1 S1 P"^io2.in" ; configure switch-type (e.g. microswitch) endstop for low end on Z via pin io2.inIt's just a caret ("^") in front of the io.in names. After a restart of the Duet, test this arrangement by pressing the contacts manually - no need to involve the steppers.
If this measure doesn't stabilise the readings of your endstops, please check your connectors, crimps and the cabling carefully: I can't think of any other reason for your setup not to work properly.
In a second step, we'll have a look at the X/YZ steppers. But first, get your endstops right.
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@infiniteloop Thanks! Let me play around with this for a bit and see if the problems fixed. So far the X axis isn't rapidly switching...
