Multipul tools per turret channel?

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16 Apr 2017 16:31 #91460 by monit111
Hi
just a quick question regarding tool zeroing

say if i had a driven tool with a parting tool attached to the side. now imagine that same driven tool also has a driven tool on the back of it for sub spindle work.

so basically this is 3 tools on 1 turret position.

can something like this work on linuxcnc?

turret is running on say an Arduino and all it cares about is a number from 1-8 once it gets that it will work to reach that number lock Hirth coupling then send signal back to say I made it and I'm ready.

I'm slowly working my way thru this software but I'm stuck here now.

thank you

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16 Apr 2017 16:49 #91461 by tommylight
Easily, just have to wire in HAL so that tollchange_prepare sends the request to arduino and wait for arduino to send that signal back to tollchange_is_prepared.
Something in that respect is all that is needed, but you have to check that and see how it is done, it has been some time that i worked with toolchanger (8 position, controlled completely by Linuxcnc ).

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16 Apr 2017 17:07 #91464 by monit111
thanks sir

so I'm not going to have any issues with tools having the same number ie
tool 1 position 1
tool 2 position 1
tool 3 position 1

but on Linuxcnc it is set as
tool 1
tool 2
tool 3
but knows they are all activated via position 1 but different XYZ coordinates?

I'm going to try it now via software only.

thanks

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16 Apr 2017 20:50 #91473 by tommylight
That will have to be configured as 10 tools in Linuxcnc, i do not know how dificult it would be to do that, maybe someone else can help more.

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17 Apr 2017 02:01 #91491 by Todd Zuercher
I think you could do it by using 3 different tool offsets but only one tool position (pocket).
So tool position 1, with the offset for 1, 10, and 11.
T1 M6
G43 H1 (or H10, or H11)

It might also work by specifying the same tool position for T10 and T11. But I have never tried it, so I don't know if it will complain if you try to have more than one tool entry with the same pocket# (Simple enough to test it).

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17 Apr 2017 09:32 #91503 by monit111
no it does not like it when you use same pocket again.

i cant even seem to setup my own machine on it i was just using a template made for mills

i tried to give it different y positions but still it does not like that

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17 Apr 2017 10:01 #91504 by monit111
i think i might have an idea that could fix this but still need to create a profile for my machine

i can teach the turret to go to the same position when it receives 3 different numbers
so say pocket 1-9-17 all go to position number 1.

this means as far as linuxcnc is concerned they are different pockets and the arduino does the rest.

do you think this might work?

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17 Apr 2017 11:30 #91507 by tommylight
That is what i was reffering to in the post above when i said you have to set 10 tools in Linuxcnc.

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19 Apr 2017 16:22 #91650 by andypugh
You can't (currently) have more than one tool in the same pocket.

The answer is to configure the toolchanger so that it goes to the same position for pockets 1, 11, 21 etc (or 101, 201, etc, if you prefer)

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19 Apr 2017 17:47 #91658 by bevins
Why would you need 10 tools?

He can use three tool numbers, pocket = tool number, different offset values for each tool.

The arduino would need to be hard coded for the three tool numbers using the same pocket, and he would just have to remember to assign the right tool # in cam.

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