The tower motors ..... H E L P

[tecno]

The tower motors of a delta printer cannot be driven via CAN-connected expansion boards.

WTF

[Phaedrux]

Tentatively on target for 3.5. Sorry for the inconvenience.

[tecno]

@phaedrux said in The tower motors .....:

Tentatively on target for 3.5. Sorry for the inconvenience.

When will that be? Next year?

[Phaedrux]

If I had to guess there may be a 3.5 beta within months.

In the meantime, In RRF 3.4.1rc1 and later, delta towers driven from expansion board drivers might work if segmentation is enabled. So maybe worth trying.

[tecno]

@phaedrux

M669 K3 S1 T1

rc2

No difference, M119 not stopped LED on or off and axis do not move but Z position is counting up on G28

[dc42]

@tecno have you tested movement of the tower motors individually using G1 H2 moves? See https://docs.duet3d.com/en/User_manual/Machine_configuration/Configuration_linear_delta#testing-the-motors-and-endstops-individually.

Have you configured the delta parameters using M665? M669 is not used for delta printers.

Please post your config.g file.

[tecno]

@dc42
config.g

[tecno]

@dc42
G1 H2 X5

Error: G0/G1: attempt to move individual motors of a delta machine to absolute positions

[dc42]

@tecno the instructions on the page I linked to tell you to put the printer into relative movement mode first.

[tecno]

@dc42
Missed G91

But still no movement

[tecno]

Now that my endstops are working I hope I can get help with motors.

[tecno]

@phaedrux said in The tower motors ..... H E L P:

drivers might work if segmentation is enabled

So how do I activate segmentation if M669 is not to be used on Delta?

[dc42]

@tecno use M665 to set delta kinematics and the delta parameters first. Then use M669 with just S and T parameters (no K parameter) to enable segmentation.

[tecno]

@dc42
; General preferences
M575 P1 S0 B57600 ; enable support for PanelDue
G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"BigDelta" ; set printer name
M665 R300 L615 B275 H570 ; 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
M669 S1 T1 ; kinematics linear delta
M564 H0 S0 ; allow axis movement not homed

Still nothing

[gloomyandy]

@tecno Do your drivers/motors work at all? What happens if you simply set them up using standard cartesian kinematics, can you move them then?

[tecno]

@gloomyandy

What lines to change?

[gloomyandy]

@tecno As I asked above, have you ever had your motors/drivers working with your current control board at all?

[A Former User]

This post is deleted!

[tecno]

@gloomyandy

Mini5 eth + 3pcs 1XD to DM556, so not with that configuration.

[tecno]

@arnold_r_clark

Can be done but the motors need high current so the Mini is not up to the task