Follow-up
I can do G92 X0 Y0 Z360 ( the actual height of my towers to the bed ) and it works
I can do G91 and run the TOWERS.. i.e. ( G91 S1 X-50 Y-50 Z-50 F2500 ) and the towers move
I just can't do G91, then G1 Z-10 F2000 for example … no movement, but also no errors
D'oh!
Fiigured it out… two of the axes endstops were swapped ( Y/Z ) and didn't go to the corresponding motors., and because I was using Maker Mechanical 1.2 endstops, the logic was reversed ( S0 vs S1 )
Now that is fixed, I still have one more mysterious issue. I can run G28 and the machine homes, BUT afterwards I can't get any G0/G1 moves to work, and there are no errors on the console of the paneldue.
I go into relative mode, then try to instruct the machine to drop down 50mm :
G91
G1 Z-10 F2000
Nada. No errors, just no movement.
I am configuring my new delta printer, a 1M tall, 500mm side three-tower. I have upgraded my Duet WiFi to 1.20, and my paneldue is still running 1.16. Right now I am just working out the kinematics of the machine, so I have not connected the fans, extruder motor, extruder heater, thermistor, bed heater, or the IR probe.
Since I will be using an IR probe, I deleted the files related to deploying the probe as documented in 1.19's Changelog.
When I press the "Home" button on the PanelDue, or send G28, the three delta carriages move up about 1-2mm, and then nothing else happens. Every G28/Home Press moves them up a little bit more, but the carriages do not act as they should. I am using Kysan bipolar 1.8 degree steppers @24V, 16 microsteps, 48T pulleys, and GT2 belts. My configured axis steps/mm is therefore 33.33 steps per mm. (200*16)/48/2
As far as I can tell, the steppers are moving smoothly and quietly, in the correct direction… I'm just not seeing the right behavior.
The configuration files in sys:
My config.g is:
[[language]]
M550 PMartinDelta ; Machine name and Netbios name (can be anything you like)
M551 Preprap ; Machine password (used for FTP)
;*** If you have more than one Duet on your network, they must all have different MAC addresses, so change the last digits
M540 P0xBE:0xEF:0xDE:0xAD:0xa3:0x22 ; MAC Address
;*** Wifi Networking
M552 S1 ; Enable WiFi
M555 P2 ; Set output to look like Marlin
M575 P1 B57600 S1 ; Comms parameters for PanelDue
G21 ; Work in millimetres
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
; Axis and motor configuration
M569 P0 S1 ; Drive 0 goes forwards
M569 P1 S1 ; Drive 1 goes forwards
M569 P2 S1 ; Drive 2 goes forwards
M569 P3 S1 ; Drive 3 goes forwards
M569 P4 S1 ; Drive 4 goes forwards
M574 X2 Y2 Z2 S1 ; set endstop configuration (all endstops at high end, active high)
;*** The homed height is deliberately set too high in the following - you will adjust it during calibration
M665 L256 R431.8 H500 B155 X0 Y0 ; set delta radius, diagonal rod length, printable radius and homed height
M666 X0 Y0 Z0 ; put your endstop adjustments here, or let auto calibration find them
M350 X16 Y16 E16 I1 ; Set 16x microstepping with interpolation
M92 X33.33 Y33.33 Z33.33 ; Set axis steps/mm
M906 X1200 Y1200 Z1200 E800 I60 ; Set motor currents (mA) and increase idle current to 60%
M201 X1000 Y1000 Z1000 E1000 ; Accelerations (mm/s^2)
M203 X20000 Y20000 Z20000 E3600 ; Maximum speeds (mm/min)
M566 X1200 Y1200 Z1200 E1200 ; Maximum instant speed changes mm/minute
; Thermistors
; M305 P0 T100000 B3950 R4700 H30 L0 ; Put your own H and/or L values here to set the bed thermistor ADC correction
; M305 P1 T100000 B3974 R4700 H30 L0 ; Put your own H and/or L values here to set the first nozzle thermistor ADC correction
; M570 S180 ; Hot end may be a little slow to heat up so allow it 180 seconds
; Fans
; M106 P1 T50 H1 ; Fan 1 turns on at 50C, cools hotend
; M106 P2 H-1
; M106 P3 H-1
; Tool definitions
; M563 P0 D0 H1 ; Define tool 0
; G10 P0 S0 R0 ; Set tool 0 operating and standby temperatures
;*** If you have a single-nozzle build, comment the next 2 lines
;M563 P1 D1 H2 ; Define tool 1
;G10 P1 S0 R0 ; Set tool 1 operating and standby temperatures
; M92 E663:663 ; Set extruder steps per mm
; Z probe and compensation definition
;*** If you have a switch instead of an IR probe, change P1 to P4 in the following M558 command
M558 P1 X0 Y0 Z0 ; Z probe is an IR probe and is not used for homing any axes
G31 X0 Y0 Z4.80 P500 ; Set the zprobe height and threshold (put your own values here)
;*** If you are using axis compensation, put the figures in the following command
M556 S78 X0 Y0 Z0 ; Axis compensation here
M208 S1 Z-0.2 ; set minimum Z
;
;T0 ; select first hot end
My homedelta.g is:
[[language]]
; Homing file for RepRapFirmware on Mini Kossel
G91 ; use relative positioning
G1 S1 X500 Y500 Z500 F2500 ; move all carriages up 320mm, stopping at the endstops
G1 S2 X-3 Y-3 Z-3 ; move all carriages down 3mm
G1 S1 X6 Y6 Z6 F250 ; move carriages slowly up 6mm, stopping at the endstops
G1 Z-5 F2000 ; down a few mm so that we can centre the head
G90 ; back to absolute positioning
G1 X0 Y0 F2000 ; centre the head and set a reasonable feed rate
I confirmed that the phases are correctly wired via the "short the phase" test to see if I got resistance when turning the motor.
I found out that my power supply was fading down to 9.4V under load, and replaced it. The steppers are now running smoothly.
I also upgraded my duet wifi to firmware 1.20. I'm not sure what version of the PanelDue I have, so I haven't upgraded the paneldue yet… it seems to work fine though.
I have a new issue, however. I'll start a new forum post to get your help debugging it.
Hello @DC42,
I have just built a new delta printer, and I decided to use a 3A/12V power supply and these bipolar steppers:
http://www.kysanelectronics.com/graphics/1124090-8.3.15.pdf
The steppers come pre-wired Red-Green-Yellow-Blue ( 1B-1A-2A-2B ). I set M906 to 1200 ( 1.2A ) to derate the amperage by 80% on the stepper. The firmware has been compiled and configured for Delta operation. The endstops are the usual 3.3v makerbot-style mechanical endstops at the top of the towers.
When I click the "Home" button on the PanelDue, all three steppers just shake violently and do not otherwise move or turn. I checked the stepper phase windings, and they are as the datasheet says they should be.
Is there something obvious I have missed? Is there something else I need to set in G-Code?
M350 is set to 16 step microstepping:
Microstepping - X:16(on), Y:16(on), Z:16(on), E:16(on):16(on):16:16:16:16:16:16:16
M906 is set to 1.2A for all towers:
Motor current (mA) - X:1200, Y:1200, Z:1200, E:800:800:800:800:800:800:800:800:800, idle factor 60%
Got it working .. had to write the SSID & password twice, then it started working again.
mDNS isn't working properly… no more going to [ndisname.local] anymore. OTOH, not a big deal.
I seem to be having issues with WiFi Configuration:
SENT: M552 S1
READ: ok
READ: WiFi module started
READ: WiFi reported error: no known networks found
READ: Wifi module is idle
I updated the WiFi Server, as well as the firmware. I can't seem to get back to a point where I can configure the SSID.