Calling a Tool up

[MBG]

In the program on the machine I run it has different tool changes call out


What is the difference between

T300

and

T303


something like that what is the difference?

[Mazaholic]

tool 3 offset 3

[Mazaholic]

T303=tool 3 offset 3

T304= tool 3 offset 4

[MBG]

Okay that is what I thought but please describe what the offset means...

[Mazaholic]

wear comp.
You should have an offset button somewhere on your control that takes you to an offset page.
When the parts you run are out of spec,thats where you make an offset to the tool to bring the parts back into spec.

[Mazaholic]

The second number T303 tells you what number to make the offset on.

[MBG]

Okay. I know where the wear page is. I have values entered into the wear page. So if I typed in t300 it would just run off of the geometry page vs if I typed in t303 it would run off of the wear offset values entered for for spot 3?

[Mazaholic]

Right.
The offset adds or subtracts from the geometry.
I would suggest using the wear.
If you get into the habit of using only the geometry and you accidently put a decmal in the wrong place or a wrong number......big boom.
Mistakes are easier caught when using wear comp,they pop right out at you when a small number sudenly becomes a big one.
Also if you make a mistake,you just set it back to zero,no need to re touch the tool.

[MBG]

Originally Posted by Mazaholic Right. The offset adds or subtracts from the geometry. I would suggest using the wear. If you get into the habit of using only the geometry and you accidently put a decmal in the wrong place or a wrong number......big boom. Mistakes are easier caught when using wear comp,they pop right out at you when a small number sudenly becomes a big one. Also if you make a mistake,you just set it back to zero,no need to re touch the tool.

I always use wear. I just don't programming to well...

I am learning..

[g-codeguy]

Some machines require you to cancel the tool offset (T300) before calling up the next tool. Most new ones don't require it. At least in our shop none do. Only a couple of the older ones. Speaking strictly of lathes here. I have nothing to do with the mills.

[Mazaholic]

Originally Posted by g-codeguy Some machines require you to cancel the tool offset (T300) before calling up the next tool. Most new ones don't require it. At least in our shop none do. Only a couple of the older ones. Speaking strictly of lathes here. I have nothing to do with the mills.

late 70s early 80s?

I know the exact machines you speak of.
The machine has to start a tool and end the tool in the same position.
That postion was found by touching #1 tool on the part face and retracting X amount of inches,or, just starting and stoping at machine home every time.
The amount you moved was the geometry for the first tool and every tool after that had to be touched off on the part face for a geometry for that tool.
Since the machine had to start and stop in the same postion every time,you had to remember to cancel the offset or the position would move the amount of the offset every time the tool ran.
I remember because i learned to program on those machines,and i found out the hard way what offset stack up meant.