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Scylla CNC Build

Posted by Scylla CNC Build 
Scylla CNC Build
February 26, 2025 07:01AM
So a few teething issues as follows any help would be much appreciated please.

I apologise if my terminology is poor this side of machine building is definately not my forte but willing to learn !

Im wanting to home both X and Y axis at MINIMA or front left as i keep calling it

Is my config in the correct order ?

Im using a Millenium Milo file as my basis to get started

[github.com]

So have done a fresh flash and onto my wifi network all good
Z axis direction is good and homes at top of travel and the Maxima travel downwards direction is spot on and stops at 350

The X axis on X homing travels in the wrong direction X+ in movements of 5mm everytime the home X button is pressed ?

The Y axis on Y homing travels in the wrong direction Y+ and the additional stepper (A) on the Y axis moves further than the Y stepper by double the amount at a rough guess maybe microstepping need a definition for the A drive ?

Once the second ( slow home ) home on the Z drive is done it needs to move further away from the limit stop as its still resting on it if this is an issue ? This maybe the case for all 3 axis (edited)



; user-config.g - Configure machine or user-specific overrides

; Set steps per mm.
M92 X640 Y640 Z640

;M569 P3 S1

; Set drive mappings to relevant axes
M584 X0 Y1:3 Z2

; Configure acceleration
M201 X300 Y300 Z200

; Configure maximum speeds
M203 X2500 Y2500 Z2000

; Endstop X=MIN: NC
M574 X1 S1 P"PC_6"

; Endstop Y=MIN: NC
M574 Y1 S1 P"PA_8"

; Endstop Z=MAX: NC
M574 Z2 S1 P"PD_12"

; Set axis limits - minima
M208 X0 Y0 Z-350 S1

; Set axis limits - maxima
M208 X1450 Y2200 Z0 S0

; Configure jerk
M566 X500 Y500 Z200

Edited 2 time(s). Last edit at 02/26/2025 06:53AM by Scylla CNC Build.

Edited 1 time(s). Last edit at 02/26/2025 07:02AM by Scylla CNC Build.
Re: Scylla CNC Build
February 28, 2025 01:08PM
You appear to be using RepRapFirmware. The direction of homing movements is set in the homing files homex.g, homey.g, homez.g and homeall.g. So we need to see those files to help.

For faster help try the Duet3D support forum or the RepRapFirmware discord server.



Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
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