Question: G1 Moves with Specified Tool WITHOUT Toolchanging

NeueKlasse

I just have a Question,

either i don't know that or it doesn't work in the moment.

If i have Multiple Tools with Offsets on the Extruder
(for Example my BMG X2 (Tool1 14mm apart from Tool0)

If i Select Tool0 and order it to G1 X1 it stands 1mm away from the Endstop.
now if i Select Tool1 and do the Same thing, Tool0 drives into the Endstop and wants
to X-13, correct?

so if I want to have Tool0 Selected and Drive Tool1 to a Specific Point i need to
calculate with the 14mm Offset.

=> is it possible to Add a Optional Tool to an G1,G2,G3 Command?

for example G1 T0 X100 or G1 T1 X20
without changing the Actual Tool.

Most CNC Machines work like that.

Maybe a future Upgrade? or does that work?

dc42

@NeueKlasse said in Question: G1 Moves with Specified Tool WITHOUT Toolchanging:

If i Select Tool0 and order it to G1 X1 it stands 1mm away from the Endstop.
now if i Select Tool1 and do the Same thing, Tool0 drives into the Endstop and wants
to X-13, correct?

I don't think that should happen, assuming you have set up the machine limits correctly with M208. The machine limits are applied to the tool reference point, so if you command tool 1 to X1 is till actually go to whatever the M208 minimum is plus 14mm.

You can use the G53 prefix to command a movement in machine coordinates.

@NeueKlasse said in Question: G1 Moves with Specified Tool WITHOUT Toolchanging:

for example G1 T0 X100 or G1 T1 X20
without changing the Actual Tool.
Most CNC Machines work like that.

I've not heard of CNC machines behaving like that, and it certainly isn't NIST-standard.

timcurtis67

@dc42 said in Question: G1 Moves with Specified Tool WITHOUT Toolchanging:

You can use the G53 prefix to command a movement in machine coordinates.

@NeueKlasse said in Question: G1 Moves with Specified Tool WITHOUT Toolchanging:

for example G1 T0 X100 or G1 T1 X20
without changing the Actual Tool.
Most CNC Machines work like that.

I've not heard of CNC machines behaving like that, and it certainly isn't NIST-standard.

I would do the moves in G53 as @dc42 suggested. CNC machines use the machine coordinate system (G53) for tool changes and other certain moves. It happens in the background on certain controls so you may not see how it is happening, but they most defiantly reference the machine coordinates because it is consistent un-changeable coordinate.