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General Mach Discussion / Help with auto tool zero

« on: March 10, 2020, 03:34:38 PM »

Hello everyone !

I have a Bulleri CNC, to which a Mach3 USB connection plate was adapted, it usually works very well, it has an automatic tool change, which has room for twelve (12) pieces, We use several macros specially designed for the machine, so I have some doubts about it

Automatic tool change is fine whenever I do it manually, but when I start a cut, for example, I have problems with the "zero" of each tool. Let me see how I can explain you better.

I used the technique of using a tool as a guide to make zero, and then I measure each tool to indicate where zero is for each one and with the table of tools I fill in the data, whenever I make the change I have the corresponding measures. However, when I start a cut that has several tools, and some of them are longer than the previous one, the Z axis when placed is placed at the zero of the tool 1 instead of the tool 2, so it collides with the material.

I have to stop the work, take Z to a higher position, change the tool and then tell it to go to zero with the new tool. Is there any way for the machine to do this automatically? I have to place some additional device?

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Spanish / Ayuda con el eje Z y el tool offset

« on: March 09, 2020, 10:46:00 AM »

Hola a todos, soy nueva por acá. Además de estar empezando en el mundo de las CNC.

Tengo una Router Bulleri de 4 ejes, a la que le coloque una tarjeta de control Mach3, del modelo MKX-IV... Ha venido funcionando bien, solo que ahora me toca probar el cambio de herramientas automático. He estado leyendo y viendo tutoriales de como agregar las medidas y la altura de cada herramienta.

Lo que me sucede ahora es que por ejemplo, tomo una herramienta de referencia y hago mi punto cero, y de ahi mido las demás.. Esto lo hace súper bien, pero me ha pasado que si la herramienta que tiene es mas corta y selecciono una más larga, el Z al volver a su posición se pasa a llevar el material, es cuando le indico que vaya a cero (G0 Z0) que no hay problema porque si tiene la medida de cada herramienta... por lo que antes de hacer el cambio me ha pasado que debo mover el eje Z hacia arriba y luego indicarle que vaya a cero.

Hay alguna manera de hacer esto automático? La idea es colocarle un código G de corte para varias herramientas y que no tenga problemas.

Alguna idea? Estoy investigando la entrada de "probe" pero no se como funciona, si es solo para hacer las pruebas al inicio, o me funcionaria para esto..

Gracias a quien me pueda ayudar!!

3

General Mach Discussion / Question about "probe" input

« on: March 09, 2020, 10:25:10 AM »

Hi everyone,
First time I write, although I am always reading the forum.

I am new with the topic of mach3, I have read a lot but I still have things to study,

I want to understand a little more about the "probe" input since I have a CNC bulleri with automatic tool change, however, I still can't make that recognizes the offset of the tool change, I Enter the tools and measurements and when I change the tool number, it is perfect, it changes the data and the zero point of the tool; but if the previous tool has a smaller measurement than the new one that you select, the Z axis still goes down to the previous position, and trips over the material.

How do I tell the Z axis to go up to a safe position before changing tools? Should I do it manually?