Using Slic3r with Tool Changer

St Taw

I am developing my Tool Changer like E3D machine.
Using Slic3r PE.
Trying to print only with tool T3

The Slic3r creates...

M107
M190 S65 ; set bed temperature and wait for it to be reached
M104 S200 T3 ; set temperature

At this point T3 is not selected as the operational tool

My start code...
G28 ; home all axes
G1 Z15 F5000 ; lift nozzle

Then Slic3r puts in

M109 S200 T3 ; set temperature and wait for it to be reached

T3 is now selected as the operational tool.

However no T3 macros have been run to get the tool. So cannot print.

Any suggestions as the correct way to resolve this?

Thanks for any help.

dc42

The tool change macros should be run provided that the firmware considers that the machine has been homed when the M109 T3 command is executed, and tool 3 was not already selected. Did the G28 succeed?

Which firmware version are you running?

St Taw

Thankyou for reply

I ran the following in console after just powering up machine so not in homed state.
Here is log

12:58:22: T: Tool 3 is selected So tool is selected by M109 command but no macro's run.
12:58:04: M109 S200 T3
12:57:31: T: No tool is selected
12:57:23: G1 Z15 F5000 Bed moves OK
12:57:01: T: No tool is selected
12:56:40: G28 All homes OK
12:55:54: T: No tool is selected
12:55:47: M104 S200 T3
12:55:14: T: No tool is selected
12:54:53: M190 S40
12:54:32: M107
12:54:01: Message Log cleared!

Firmware details.

Firmware Name: RepRapFirmware for Duet 2 WiFi/Ethernet
Firmware Electronics: Duet WiFi 1.02 or later + DueX5
Firmware Version: 2.02(RTOS) (2018-12-24b1)
WiFi Server Version: 1.22
Web Interface Version: 1.22.6

dc42

If you send T3 instead of sending the M109 T3 command, do the tool change macros run?

St Taw

Hi,
Repeated the previous sequence exactly the same except replaced

M109 S200 T3

with

T3

Yes the macros run and it gets the tool.

St Taw

The documentation for M109 says if the T command is used the tool is selected (slic3r behaviour). By implication although not explicitly stated I would expect the pre and post macros to be run.
So is the a bug?

Also when I cancel a print no macros are not run to deselect the tool and yet the status is then no tools selected.

I have in cancel.g
M0
T-1
And yet the macros are not run.