BLTouch working
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P5 is the correct type for a BLTouch. I'll add this to the wiki.
which endstop is expected then? I've been using the P4 option without issue and how W3DRK got it working initially
Whats the main difference between them?
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ok, so for Probe type 4 which is a switched probe the endstop(black/white wires) need to be plugged into the E0 endstop. Also to simplify wiring you can plug the 5v and ground into pins 1 and 2 of the expansion header. the bltouch doesnt care where it gets power and ground from but it simplifies wiring some.
to quote the Gcode wiki for M558
@http://reprap.org/wiki/G-code#M558:_Set_Z_probe_type:
A Z probe may be a switch, an IR proximity sensor, or some other device. This selects which to use.
P0 indicates that no Z probe is present. P1 gives an unmodulated IR probe, or any other probe type that emulates an unmodulated IR probe (probe output is an analog signal that rises with decreasing nozzle height above the bed).
If there is a control signal to the probe, it is driven high when the probe type is P1.
P2 specifies a modulated IR probe, where the modulation is commanded directly by the main board firmware using the control signal to the probe.
P3 selects an alternative Z probe by driving the control signal to the probe low.
P4 selects a switch for bed probing (on the Duet, this must be connected to the E0 endstop pins).
P5 (from RepRapFirmware 1.14) selects a switch (normally closed) for bed probing between In and Gnd pins of the Z-probe connector (Duet 0.8.5 and Duet WiFi).
P6 is as P4 but the switch is connected to and alternative connector (on the Duet series, the E1 endstop connector).
currently though you seem to not be getting signal to the bltouch, doublecheck your connections, and try to isolate the signal wire for the bltouch away from the other wires in the wire bundle, especially the motor wires. you could be getting intereferance from an outside source.
Oh okay thank you for the clarification on the E0 pins not the probe pins.
I guess i am still confused as the pin will not react to pwm signals. This exact setup worked on my previous mks board so I have confidence there is no wire interference as the gantry hasn't even been moved since then. I will look again though and see if I see anything with it.
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David, I tried to go make a few changes to the wiki to update the info you had ??'s at, but have been blocked. If for some reason i am not unblocked I'll just make a post here to clarify the info.
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@3dprinting:
is it possible to test the bltouch without connecting to the power supply?
I mean, if I plug in usb, I can use web control, but is it enough power to activate servos and all that jazz?
I think It would work, but not sure. My boadr's sitting on the table and I'd rather get bltouch up and running before I disassemble my printer because my current z probe is not compatible.Supplying external 12v to the board shouldn't be difficult. An external psu or even just long wires from your psu in the printer. More importantly this thing is awesome (Duet Wifi) for that fact you don't really ever have to plug into it again.
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David, I tried to go make a few changes to the wiki to update the info you had ??'s at, but have been blocked. If for some reason i am not unblocked I'll just make a post here to clarify the info.
Not sure if you or David updated the Wiki but shouldn't the retract pin macro file be "M280 P3 S90 I1" ?
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@3dprinting:
@3dprinting:
is it possible to test the bltouch without connecting to the power supply?
I mean, if I plug in usb, I can use web control, but is it enough power to activate servos and all that jazz?
I think It would work, but not sure. My boadr's sitting on the table and I'd rather get bltouch up and running before I disassemble my printer because my current z probe is not compatible.Supplying external 12v to the board shouldn't be difficult. An external psu or even just long wires from your psu in the printer. More importantly this thing is awesome (Duet Wifi) for that fact you don't really ever have to plug into it again.
Yea, but I was hoping to cheat a little because my printer has a metal cabinet base I have to flip the printer over to access power, all my connectors need to be replaced to connect to the wifi, and I have an incompatible z probe right now,so when I set up the BLtouch, i gotta test it before installing the board, it's a lot of work to roll it back to 8 bit, especially since nobody within 40 miles of me sells 240k resistors, and the new bltouch doesn't come with one.
But I'm 1 day in on the upgrade, and I alotted myself 3, so I'm not doing bad right now.
Ahh I see. Got extra wires to run temporarily to the duet from your psu? Only gotta flip it once then
Also the new bltouch doesn't need a 240ohm resistor. you just cut the jumper on the chip that says 3.3v logic.
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David, I tried to go make a few changes to the wiki to update the info you had ??'s at, but have been blocked. If for some reason i am not unblocked I'll just make a post here to clarify the info.
Not sure if you or David updated the Wiki but shouldn't the retract pin macro file be "M280 P3 S90 I1" ?
I regained access to the wiki, and updated some of the info, I need to go back through and edit some more but it's more accurate now.
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David, I tried to go make a few changes to the wiki to update the info you had ??'s at, but have been blocked. If for some reason i am not unblocked I'll just make a post here to clarify the info.
Not sure if you or David updated the Wiki but shouldn't the retract pin macro file be "M280 P3 S90 I1" ?
I regained access to the wiki, and updated some of the info, I need to go back through and edit some more but it's more accurate now.
I have the new bltouch right here in my hand, and the color code for the probe output is
black= ground
white= signal outnot sure if it's the right way to word it, I'd call it z+ and z-, but that might confuse with minimum and maximum heights, but I think you get the idea for the purpose of updating the wiki
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@3dprinting:
David, I tried to go make a few changes to the wiki to update the info you had ??'s at, but have been blocked. If for some reason i am not unblocked I'll just make a post here to clarify the info.
Not sure if you or David updated the Wiki but shouldn't the retract pin macro file be "M280 P3 S90 I1" ?
I regained access to the wiki, and updated some of the info, I need to go back through and edit some more but it's more accurate now.
I have the new bltouch right here in my hand, and the color code for the probe output is
black= ground
white= signal outnot sure if it's the right way to word it, I'd call it z+ and z-, but that might confuse with minimum and maximum heights, but I think you get the idea for the purpose of updating the wiki
I have 3 of them, my plan is to rewrite that section to have the 3 pin and the 2 pin separate
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Okay so wonderful news, I can now deploy ad retract the pin!
But checking endstops with m119, it shows I have a z stop at its min, when I do not even have one installed. I will have to double check my config for one. Using p5 and the probe pins I do not have to have a z end stop do I? Seems to be a bit more of an annoyance imo.
Also with the pin up or down the m119 also stated the probe was not stopped. Shouldn't it be stopped when retracted?
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If your M558 command specifies that the Z probe is used for homing, then when the probe is triggered, M119 should show both probe triggered and Z at min stop.
What the probe shows when retracted will depend on what the probe outputs. Deployable probes are usually designed to show that they are triggered when retracted, for safety.
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So I guess what exactly should my m558 command be exactly? It was "M558 P5 X0 Y0 Z1 H5 F120 T2000"
Is this correct still?
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Ok, so I have the probe mounted, and it deplys, retracts, and when I run the self test macro, it goes up and down endlessly like a blinker. Here's a video I made of it.
https://youtu.be/uu1BUnxgQMs
Is this how it's supposed to work? Am I missing an important step on how to see if the z probe is reading triggered in real time?
I don't know an easier way to do this, so here's my configuration.g, in it's entirety.
; Configuration file for Duet WiFi (firmware version 1.17)
; executed by the firmware on start-up
;
; generated by RepRapFirmware Configuration Tool on Sat Feb 18 2017 23:41:13 GMT-0500 (Eastern Standard Time); General preferences
M111 S0 ; Debugging off
G21 ; Work in millimetres
G90 ; Send absolute coordinates…
M83 ; ...but relative extruder moves
M555 P2 ; Set firmware compatibility to look like Marlin
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X200 Y200 Z260 S0 ; Set axis maxima; Endstops
M574 X1 Y1 Z0 S0 ; Define active low and unused microswitches
M558 P5 X0 Y0 Z1 H5 F120 T6000 ; Set Z probe type to unmodulated, the axes for which it is used and the probe + travel speeds
G31 P25 X0 Y0 Z2.5 ; Set Z probe trigger value, offset and trigger height; Drives
M569 P0 S0 ; Drive 0 goes backwards
M569 P1 S0 ; Drive 1 goes backwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M350 X16 Y16 Z16 E16 I1 ; Configure microstepping without interpolation
M92 X100 Y100 Z4000 E98 ; Set steps per mm
M566 X600 Y600 Z12 E120 ; Set maximum instantaneous speed changes (mm/min)
M203 X6000 Y6000 Z180 E1200 ; Set maximum speeds (mm/min)
M201 X500 Y20 Z250 E250 ; Set accelerations (mm/s^2)
M906 X800 Y800 Z800 E1000 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S30 ; Set idle timeout; Heaters
M143 S275 ; Set maximum heater temperature to 275C
M301 H0 S1.00 P10 I0.1 D200 T0.4 W180 B30 ; Use PID on bed heater (may require further tuning)
M305 P0 T100000 B3988 C0 R4700 ; Set thermistor + ADC parameters for heater 0
M305 P1 T100000 B-6788 C3.166739e-6 R4700 ; Set thermistor + ADC parameters for heater 1; Tools
M563 P0 D0 H1 ; Define tool 0
G10 P0 X0 Y0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C; Network
M550 PDMSDP5 ; Set machine name
M551
M552 P0.0.0.0 S1 ; Enable network and acquire dynamic address via DHCP; Fans
M106 P0 S0.3 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off
M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on
M106 P2 S1 I0 F500 H1 T45 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on; Custom settings are not configured
M307 H3 A-1 C-1 D-1
; Miscellaneous
T0 ; Select first toolthanks for the help!
edit:shouldnt post my password, I'll change it now. Yea, I'm a meathead -
post the Macro,
If you are using M280 P3 S120 I1 that's what it does it cycles continually until M280 P3 S160 I1 to reset the probe to it's normal operating procedure this is a built in bltouch feature and not part of reprap firmware.see my post on page 2 or 4 for testing the probing of a single point.
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I finally got my bltouch to be usable as a probe and endstop for the z axis. Wohooo! Thanks so much guys!
I gotta ask too, I currently have the homing sequence to only probe once, unlike the normal endstop procedure (quickly enable endstop, back off and engage again slowly) procedure. What Homing code did you use to replicate this? Or are you using a simple one ouch method like I described?
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post the Macro,
If you are using M280 P3 S120 I1 that's what it does it cycles continually until M280 P3 S160 I1 to reset the probe to it's normal operating procedure this is a built in bltouch feature and not part of reprap firmware.see my post on page 2 or 4 for testing the probing of a single point.
Ok, I'm up and running! probe is working great! Now gotts tune my bed, the map looks like utah, align my z axies, set z offset and enjoy
Thank you and everyone else who had the patience to deal with my meathead questions! There's no way I could have figured this out on my own.
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After much struggle I finally was able to get the touch to work. For some reason using M558 P5 did not work for me the Z probe would always sit a 1000, so I ended up using M558 P4 and it works like a charm. Do I have an old version of the probe or something maybe?
;Z Probe Setup in Config.g
M307 H3 A-1 C-1 D-1 ;reserve pin 21 for servo use
M558 P4 X0 Y0 Z1 H6 F450 T4000
G31 X-17 Y7 Z2.3 P25 ; Set the probe height and threshold; increase Z to decrease bed probe distance X11.0 Y0.5
; Deploy Probe (having I1 at the end it did not work)
M280 P3 S10
;Home Z
T0 ; select first hot end
G91 ; Relative coordinates
G1 Z5 F200 ; Lower bed to avoid hotend dragging in bed.
G90 ; Absoulte coordinates
G1 X35 Y15 F3000 ; Go to first bed probe point and home the Z axis
M401
G30 ; Calibrate Z-axis
M402
G1 Z1 F200 ; Raise bed to 1mm.
;Mesh Level
;Setup
T0 ; select first hot end
G91 ; Relative coordinates;Home X and Y
G1 Z4 F720 ; Lower bed to avoid hotend dragging in bed.
G1 X-350 Y-240 F3000 S1 ; move up to 240mm in the -X and -Y directions until the homing switches are triggered
G1 X6 Y6 F600 ; move slowly 6mm in +X and +Y directions
G1 X-10 Y-10 S1 ; move up to 10mm in the -X and -Y directions until the homing switches are triggered;Home Z
G90 ; Absoulte coordinates
G1 X35 Y15 Z6 F3000 ; Go to first bed probe point and home the Z axis
M401 ; Deploy Probe
G30 ; Home Z-axis;Preform Mesh level
M557 X10:290 Y10:190 S20 ; Bed level from X30Y12 to X299Y188 in 20mm incrementsG29 S0 ; Auto Bed Level and create report (If I retacted probe first bad things happend)
M374 ; Save calibration grid
M402 ; Retract ProbeG1 X70 Y200 F3000 ; Dock after bedlevel. Move first in front of docking notch
G1 X70 Y235 F3000 ; Dock after bedlevel
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With P4 in your M558 command, you need to connect the sensor output to the E0 endstop connector. With P5 you connect it to the IN pin on the ZProbe connector. I added a wiring table at https://duet3d.com/wiki/Connecting_a_Z_probe#BLTouch last week and updated it today, using what little information I was able to find about BLTouch on the web.
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Oooh dang, I wasted so much time, I mixed it up I guess with reading to put it on E0 and using P5, I read through this forum 3 or so times trying to get all the information scattered around and still screwed it up
I am working on a more complete walk-through integrating the Duet with the BigBox, I plan on a section detailing the BLTouch as well.
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Are this connections right?
Can someone make a step by step description of the firmware modifications required?
http://i68.tinypic.com/rle5g1.jpgthese are not quite right. black and white leads should go to other port and not panel due connector. reverse pins accordingly
