Allow tool change scripts or issue warning on Non homed device

dc42

Now that conditional GCode can now be used to test whether axes have been homed, I guess it would be possible to allow the tool change files to run, but abort them if they try any movement of axes that have not been homed.

Danal

@dc42 said in Allow tool change scripts or issue warning on Non homed device:

Now that conditional GCode can now be used to test whether axes have been homed, I guess it would be possible to allow the tool change files to run, but abort them if they try any movement of axes that have not been homed.

FWIW: There are scenarios where I home only XY and the tool lock, and then park a tool. Specifically, z is not homed. At the moment, I G92 Z... but having the system safety net check moves, instead of checking all axis, would be of benefit.

This is independent of conditional.

dc42

One problem I can see, which applies in either case, is this. On my tool changer I select T0, but the printer isn't homed. So (whether the tool change file gets run or not), the tool isn't picked up. Then I home the axes. At this point:

If I select T0 again, it will think T0 is already selected, so it won't pick it up.
If I select another tool, it will try park T0; but the coupler may be in the wrong position, leading it to push the coupler against the coupling plate.

mwwhited

@jay_s_uk, I want the tool change code ran.

mwwhited

@dc42 said in Allow tool change scripts or issue warning on Non homed device:

One problem I can see, which applies in either case, is this. On my tool changer I select T0, but the printer isn't homed. So (whether the tool change file gets run or not), the tool isn't picked up. Then I home the axes. At this point:

If I select T0 again, it will think T0 is already selected, so it won't pick it up.

If I select another tool, it will try park T0; but the coupler may be in the wrong position, leading it to push the coupler against the coupling plate.

I get that especially for the majority of people of people that already use T# and not wanting to break their machines by running code that wasn't homed. But what about popping a warning saying the machine isn't homed versus not doing anything at all.

dc42

I've decided that release 3.01-RC11 will run tool change files even if the axes haven't been homed; but I may change this back before the 3.01 release if it causes too many problems.

Danal

@dc42 said in Allow tool change scripts or issue warning on Non homed device:

I've decided that release 3.01-RC11 will run tool change files even if the axes haven't been homed; but I may change this back before the 3.01 release if it causes too many problems.

Meaning that the toolchange macros WILL run (where they do not today), and within those macros, a move (such as a G0) for a specific axis that HAS been homed will work, and a move for an axis that HAS NOT been homed will fail.

Correct? If so, I believe this is ideal behavior.

dc42

@Danal said in Allow tool change scripts or issue warning on Non homed device:

@dc42 said in Allow tool change scripts or issue warning on Non homed device:

I've decided that release 3.01-RC11 will run tool change files even if the axes haven't been homed; but I may change this back before the 3.01 release if it causes too many problems.

Meaning that the toolchange macros WILL run (where they do not today), and within those macros, a move (such as a G0) for a specific axis that HAS been homed will work, and a move for an axis that HAS NOT been homed will fail.

Correct? If so, I believe this is ideal behavior.

A G1 move for an axis that has not been homed will fail, produce an error message, and (I think) abort the tool change file.

Danal

Fantastic. Perfect.

Ray11

I am running an IDEX printer. I am not so familiar with condition statements. Can someone give me an example of checking if all axis is homed?

Here is my tfree0.g. How can I modify it such that it checks if all axis is homed?

;M106 S0           ; turn off our print cooling fan
G91 ; relative axis movement
G1 Z3 F500 ; up 3mm
G90 ; absolute axis movement
G1 H2 X-30 F6000 ; park the X carriage at -30mm