Delta 3D space head positioning vs single tower moves

[Chipsa82]

Hi,

Im running the duet wifi with 2.01beta1(RTOS) (2018-06-23b1) firmware on my delta printer.

Everything seems to be working fine, except the manual machine control in the web interface. by clicking i.e. move Z down by -100mm, only the Z tower carriage moves down. the same applies for other axes/carriages.

If I enter a manual gcode command, i.e. G1 X50 Y20 Z100 F3000, everything works OK and the printhead moves where it should.

any clue why the web interface doesn't move all carriages accordingly but just the individual towers?

thanks!

[T3P3Tony]

That is odd! As a start point I would update the firmware: https://github.com/dc42/RepRapFirmware/releases

[Chipsa82]

Indeed..

looking at the console log, if i push one of the buttons in the screenshot above, i get this output per buttonpress

M120
G91
G1 S2 X-10 F6000
M121

looking at the G1 gcode wiki

G1 Xnnn Ynnn Znnn S2 Ignore endstops while moving. Also ignore if axis has not been homed. On Delta (only), axis letters refer to individual towers.

so it looks like the S2 parameter (saying not to move the printhead but just the corresponding tower) is there by design.

i tried looking up where to adjust this (=leave out the S2) in the web UI, but no luck.

[T3P3Tony]

Please do try with the latest firmware and DWC.

[Dougal1957]

Also please post your Config.g file

[dc42]

@chipsa82 said in Delta 3D space head positioning vs single tower moves:

Indeed..

looking at the console log, if i push one of the buttons in the screenshot above, i get this output per buttonpress

M120
G91
G1 S2 X-10 F6000
M121

looking at the G1 gcode wiki

G1 Xnnn Ynnn Znnn S2 Ignore endstops while moving. Also ignore if axis has not been homed. On Delta (only), axis letters refer to individual towers.

so it looks like the S2 parameter (saying not to move the printhead but just the corresponding tower) is there by design.

i tried looking up where to adjust this (=leave out the S2) in the web UI, but no luck.

Updating Duet Web Control will fix that. You should also update the main firmware, because you are running an obsolete release candidate version.

[Chipsa82]

thanks, will give it a try!

[Chipsa82]

Hi

thanks for the advice

upgrading Web Interface to Version 1.22.3 resolved the issue

thanks!