well if the nr.2 spindle is as strong in both tork. rigidity and precision as the main spindle then its what's called a counter spindle but if it's not then its called a sub spindle ( i learned the diffrence when i was standing on a swiss lathe machine ) btw if they want to make completely sure to avoide crashing by software i would highly advise that they not only have tool lenth probe but also a stiles that runs over then entire tool holder so they can put the entire shape and dimensions of the holder itself into the simulation ( nothing super precise or fancy. just like a pin with a known diametor that gets draged over the holder's surface with a light preasure so it can map the shape of the holder. +- 2mm in diameter and lenth's should be more then fine for the simulation ) and have it in the controler that every time you switch program or take out a tool from the machine it does that check the first time it takes that tool ( aka. secend time it takes that tool without the program have been changed or that tool have been taken out of the machine it dont check the toolholder shape. cause it already what/how it is with certenty )
well if the nr.2 spindle is as strong in both tork. rigidity and precision as the main spindle then its what's called a counter spindle but if it's not then its called a sub spindle ( i learned the diffrence when i was standing on a swiss lathe machine )
btw if they want to make completely sure to avoide crashing by software i would highly advise that they not only have tool lenth probe but also a stiles that runs over then entire tool holder so they can put the entire shape and dimensions of the holder itself into the simulation ( nothing super precise or fancy. just like a pin with a known diametor that gets draged over the holder's surface with a light preasure so it can map the shape of the holder. +- 2mm in diameter and lenth's should be more then fine for the simulation ) and have it in the controler that every time you switch program or take out a tool from the machine it does that check the first time it takes that tool ( aka. secend time it takes that tool without the program have been changed or that tool have been taken out of the machine it dont check the toolholder shape. cause it already what/how it is with certenty )