The best part about this is i have a excellent understanding of the gcode settings now .
I knew something was amuck. I can now go to bed 🙂

Solution for others like me not reading all the docs to begin with is to read https://duet3d.com/wiki/Configuring_RepRapFirmware_for_a_Cartesian_printer#Homing_files

Short version, use G1 Zxxx S1 instead of G30 to home with endstops. G30 is only for a probe.

@Prawnabie:

Ahhh I get it now!! So the trigger height is just a reference position and the z0 command will be given to the printer when printing by the slicers g code?

Mostly correct but actually the first Z move will be to the Z position that corresponds to your first layer height is - i.e something like G1 Z0.3.

…and now I just figured out that M301 is deprecated and all I need is M307. So never mind!

@NoSkillzEngineer:

Do you have anywhere to get delta rods that are assembled so I do not mess them up? I hesitate using magnetic rod ends.

Haydn Huntley on Google groups deltabots forum. Order them slightly longer than you think you'll need.

I went for the new 1.18beta, it did give a warning,

Warning: Heater 1 appears to be over-powered and a fire risk! If left on at full power, its temperature is predicted to reach 602C.

Saved with M500.

Cheers
Charlie.

I'm glad you sorted it!

When you select probe type 5 in the M558 command, the MOD signal is normally LOW but is driven HIGH at the start of a probing move and goes LOW again when the probing move completes.

I checked the code, and bed probing moves are already executed with zero jerk. If your printer allows a very high Z acceleration, there might be some merit in reducing it during probing.

I suggest you measure the trigger height neat the edges of the bed, to see how close you can get before the trigger height is affected. See https://duet3d.com/wiki/Using_mesh_bed_compensation#Checking_the_trigger_height. The extrapolation of bed compensation outside the probed area was improved in firmware 1.18beta3.

Hey, good question!

As you can read here:
Calibrating_a_delta_printer#Running_auto_calibration_for_the_first_time

In delta calibration it the deviation from mean of the expected results.

Thanks David

That worked

Do not like it either but this evil works with ABS. E3D edge there was no need.

Since I started using the mirror version I must say that the fist layer has never looked this good.

found loose connection that was killing motor. now both y run but 1 is really loud and doesn't appear to move correctly like right motor does. anything here indicate different settings between motors?

Thanks again. I created short macros enabling me to switch between T0 and T1, enable and disable cold extruding, etc. It's all working great, and I'm able to do whatever I need. The help was much appreciated!

🙂 Thanks.

The really bizarre thing in my case was that most of the issues I was having just went away. It coincided with me having to print a new X carriage, fit and new height sensor and while I was at it, fitted the Duex expansion board. None of those things could have caused a significant change in extrusion though but ever since, I've been running with 90% extrusion which is a lot more sensible than the 60% I originally had to use. There must be some sort of dark magic going on…........

Ah I see, Must have been having a bain fart. thank you for your help.

Yes.

Can you make a macro called probe.g and just call it with M98 Pprobe.g. You can change the values in probe.g and then call it from the 7 locations where you need it.

Here's my config file:

;; ;; Folgertech FT5 Configuration ;; 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 X305 Y304 Z410 S0 ; Set axis maxima M574 Y2 X2 Z0 S0 ; Define microswitches M558 P5 X0 Y0 Z1 H5 F200 T6000 ; Set probe type G31 P500 X0 Y0 Z1.80 ; Set Z probe trigger value, offset and trigger height M584 X0 Y1:4 Z2 E3 ; Map to specific drives M569 P0 S0 ; Drive 0 - X M569 P1 S0 ; Drive 1 - Y M569 P2 S1 ; Drive 2 - Z M569 P3 S1 ; Drive 3 - E0 M569 P4 S1 ; Drive 4 - Y M350 X16 Y16 Z16 E16 I1 ; Configure microstepping with interpolation M92 X80 Y80 Z399 E492.45 ; Set steps per mm M566 X1200 Y1200 Z60 E120 ; Set maximum instantaneous speed changes (mm/min) M203 X8000 Y8000 Z600 E1200 ; Set maximum speeds (mm/min) M201 X1500 Y1500 Z500 E250 ; Set accelerations (mm/s^2) M906 X1000 Y1000 Z1200 E900 I30 ; Set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout M143 S260 ; Set maximum heater temperature to 260C M305 P0 T100000 B3950 C0 R4700 ; Set thermistor + ADC parameters for heated bed (Heater 0) M305 P1 T100000 B4388 C0 R4700 ; Set thermistor + ADC parameters for E0 (Heater 1) M307 H0 A281.7 C430.4 D4.4 B0 ; Bed PID M307 H1 A344.7 C122.8 D5.5 B0 ; Hotend PID M307 H3 A-1 C-1 D-1 ; BLTouch 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 M550 PFT5 ; Set machine name M552 P0.0.0.0 S1 ; Enable network and acquire dynamic address via DHCP M106 P0 S0 I0 F500 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off M106 P1 S255 I0 F500 H1 T50 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on M106 P2 S255 I0 F500 H1 T50 ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned on T0 ; Select first tool

I home the hotend to back right of the printer (as standard for the FT-5) I set X & Y switch to high end so it's parked around 305. That gives me a front left corner of the bed X0 Y0, front right of Y0 X305 and back left of X0 Y305. In S3D i just tick flip Y build plate so every STL i load is usually the correct orientation ready to print 🙂