Just an update for the benefit of the community. I got again the error and I fixed with solution 2. I temporarly put a cable attached to the ground, and when I switch on the 3d printer, if showing 2000 degrees, I just connect hotend to the ground and reset the heater. I will do a more stable solution as suggested by dc42.

Thanks!

@bearer Yes I found the link right after posting ( as allways 😛 )

@CaLviNx said in Enclosed printer water cooled motors:

how would you run ball screws on a Core-XY ?

you cant, it would be a Cartesian printer.
see this as an example
https://www.thingiverse.com/thing:2929869

@remixbot said in Having problems with the bltouch, duet 2 wifi:

G1 H1 Z-205 F360 ; move Z down stopping at the endstop
G90 ; absolute positioning
G92 Z0 ; set Z position to axis minimum (you may want to adjust this)

To use the probe you need to use G30 as shown by BoA in his example homing files.

If your wiring is correct and the config uses those correct pins and it still doesn't trigger but the servo commands work, then it's likely a bad connection on the white wire, which is the trigger signal.

@Phaedrux Thank you!
After trying about a dozen different tutorials on how to install and configure motion I found one that worked for me.

Motion setup tutorial

Cheers
Max

Now it works, i have performed the steps again.

Thanks for your help

credit goes the fan shim crowd for the rather elegant systemd setup and happy to help with "interesting" ways to achieve things.

@Veti said in Z Axis Homing problem:

M574 Z1 S1 P"!zstop"

Thank you! Helped a lot!

My method is probably a bit OTT. I built a reasonably air tight "booth" to house my printer and I use a couple of those cheap de-humidifiers inside the booth (the type that use Calcium Chloride because it absorbs much more water than Silica Gel - but is non-re-usable). Because I have 6 reels of filament loaded at all times and I'm not very disciplined at removing the filament from the machine, it's just easier to keep the entire thing dry.

I store all the other filament in re-sealable bags with some "rechargeable" desiccant (Silica Gel that changes colour). The bagged and boxed filament goes inside the original boxes and I built a pull out storage rack which sits inside the "booth" next to the printer. https://somei3deas.wordpress.com/2019/12/13/pull-out-filament-storage-rack/

@dc42
Ahaa, well then i have to rethink this some more, i believe the mosfet need 5-24v on the control side.

Alternatively i can reasign the bed to e1heat, and run the airpump on the bedheat (with diodes), and throw my led lights on fan0.

Thanks for clarifying that. I have update the documentation for M950 to clarify that servo pins are just GPIO pins with a different default PWM frequency. I will mark this as solved.

Yep.
I got the position wrong where it stores a tool change position.
I will edit the above post

Finaly I used 3pwm output port from the Duet 3 and drive it with gcode M950 et M48.

@deckingman What exactly do you mean by (quote) " The problem is that the motor connected to the external driver doesn't behave properly". ?

I mean that when i try to change the microstepping through :
OLD : "M350 X16 Y16 Z16 E16:16 I1"
NEW : "M350 X16 Y16 Z16 E16:2 I1"

or steps per mm through :
OLD : M92 X80.00 Y80.00 Z80.00 E292.24:141.73
NEW : M92 X80.00 Y80.00 Z80.00 E292.24:500

the motor at E1 behaves in the same way that it used to as if the changes didn't take any effect.

Setting E292.24:141.73 or E292.24:500 makes no difference at all at the distance the motor travels for a movement of 100mm

Here is my config.g V2.02 firmware

; Configuration file for factory testing Duet Ethernet and Wifi with V2.02 firmware ******************************************************************************************************************* FOR TESTING ONLY! USE https://configurator.reprapfirmware.org/ to generate configuration files for your printer! ******************************************************************************************************************* ; Communication and general M111 S0 ; Debug off M550 PDuetTest ; Machine name and Netbios name (can be anything you like) M551 Preprap ; Machine password (used for FTP) *** Ethernet networking: The following lines are used for factory testing - PLEASE REMOVE THEM M540 P0xBE:0xEF:0xDE:0xAD:0xFE:0xED ; MAC Address M552 P192.168.1.101 ; IP address M554 P192.168.1.255 ; Gateway M553 P255.255.255.0 ; Netmask ;*** End of factory test lines to be removed M555 P2 ; Set output to look like Marlin G21 ; Work in millimetres G90 ; Send absolute coordinates... M83 ; ...but relative extruder moves ; Delta Settings M665 L440.000 R227.453 H455.2 B185.0 ; Delta base ; Network M550 P"Anycubic Predator" ; Set machine name M551 P"" ; Set password M552 S1 ; Enable network and acquire dynamic address via DHCP M586 P0 S1 ; Enable HTTP M586 P1 S0 ; Disable FTP M586 P2 S0 ; Disable Telnet ; Drives M584 E3:10 M569 P0 S0 ; Drive 0 goes forwards M569 P1 S0 ; Drive 1 goes forwards M569 P2 S0 ; Drive 2 goes forwards M569 P3 S1 ; Drive 3 goes forwards M569 P4 S1 ; Drive 4 goes forwards M569 P10 S1 ; Drive 10 goes forwards M350 X16 Y16 Z16 E16:16 I1 ; Configure microstepping with interpolation ;M92 X80.00 Y80.00 Z80.00 E520:252.2 ; Set steps per mm M92 X80.00 Y80.00 Z80.00 E292.24:141.73 ; Set steps per mm M566 X3000 Y3000 Z3000 E1000:1000 ; Set maximum instantaneous speed changes (mm/min) M203 X5000.00 Y5000.00 Z5000.00 E10000:10000 ; Set maximum speeds (mm/min) M201 X1000.00 Y1000.00 Z1000.00 E3000:3000 ; Set accelerations (mm/s^2) M906 X1650.00 Y1650.00 Z1650.00 E800:3000 I30 ; Set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Retraction ;M207 S4.0 F5000 R-0.025 T2500 Z0.5 ; Firmware retraction ; Axis Limits M208 Z0 S1 ; Set minimum Z ; Endstops M574 X2 Y2 Z2 S1 ; Set active high endstops ; Z-Probe M558 P4 H5 F600 T9000 ; Set Z probe type to switch and the dive height + speeds ;G31 P500 X0 Y0 Z16.0 G31 P500 X0 Y0 Z17.04 ; Set Z probe trigger value, offset and trigger height M557 R115 S20 ; Define mesh grid G29 S1 ; Load the heightmap ; Heaters ;M307 H0 A137.8 C533.3 D1.5 V24.3 B0 ; Disable bang-bang mode for the bed heater and set PWM limit ;M305 P0 T100000 B4300 C0 R4700 ; Set thermistor + ADC parameters for heater 0 ;M143 H0 S120 ; Set temperature limit for heater 0 to 120C ;M305 P1 T100000 B4300 C0 R4700 ; Set thermistor + ADC parameters for heater 1 ;M143 H1 S240 ; Set temperature limit for heater 1 to 240C ; Fans M106 P0 S0 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 ; Tools ;M563 P0 D0 H1 ; Define tool 0 ;G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets ;G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C ; Automatic saving after power loss is not enabled ; Custom settings are not configured M572 D0 S0.1 ; Pressure Advance ;M591 D0 P2 C4 S1 ; Activate filament sensor M404 N1.75 ; Set for print monitor M592 D0 A0.07772 B-0.00029 ; Nonlinear extrusion. Set parameters for extruder drive 0 ;Set Mixing Extruder M302 ; Allow cold extrusion M563 P0 D0:1 ; Define tool 3 (P3) to use all three extruders (D0:1:2) M568 P0 S1 ; Enable mixing for tool 3 M567 P0 E0.9:0.1 ; Set mixing ratio for tool 3. M913 E100:300 ; Set current of ram ;*** Networking M552 S1 ; Turn network on ; Miscellaneous M501 ; Load saved parameters from non-volatile memory

@Phaedrux Thanks for the help. This thread has got me thinking and for the production run I'll most likely use a different solution (less constrained so motors can do its thing). For the prototype I will see if it is helpfull if necessary at all.

Right now I have it working with 4 adjustment points using the following script:

M561 ; clear any bed transform

M98 P"homexyu.g" ; home the x, y and u axis

T0 P0 ; select tool 0
G1 X51.3 Y75 F5000 ; move to first probe coordinates
G91 ; relative positioning
G30 K0 Z-9999 ; probe bed with tool 0 and set Z=0

G90 ; absolute positioning
T1 P0 ; select tool 1
G1 X51.3 Y75 Z12.5 U-7.5 F2000; ; move the bed 7.5mm, and the U axis 15mm down
G91 ; relative positioning
G38.2 Z-9999 P1 ; probe bed with tool 1 and stay at Z=0
M400
G10 L1 P1 X0 Y0 Z{-move.axes[2].machinePosition} ; set Z-offset
M500 P10 ; save offset
M400
G1 Z5 ; move the bed 5mm down
G90 ; absolute positioning
M400
M117 "Z offset for tool 1 is set and saved"

T0 ; select tool 0

G30 P0 K0 X51.3 Y75 Z-9999 ; probe above leadscrew
G30 P1 K0 X400 Y448.7 Z-9999 ; probe above leadscrew
G30 P2 K0 X748.7 Y75 Z-9999 S3 ; probe above leadscrew and run compensation

You could try putting capacitor on SSR input.

Check out this page if you haven't already seen it.

https://duet3d.dozuki.com/Wiki/Using_mesh_bed_compensation?revisionid=HEAD#main

Thanks you C0 parameter was the problem.

Jose

@Veti Now I use IT 🐷

20201118_130953.jpg 20201118_131014.jpg