It's been Decided!

[SpeedsCustom]

It has been decided! After almost a year with the CNC Taig, it's time I install limit switches! Last night after machine/comp error!

While away from the machine, the machine decided to plunge into my table. I noticed this today! Put a nice hole in my table and in the process, also snapped my endmill in half!


Limit switches are next on my list of things to do with the machine! God, I hate when things like this happen.

Just thought I needed to get this off my chest



-Jason

[HimyKabibble]

Originally Posted by SpeedsCustom It has been decided! After almost a year with the CNC Taig, it's time I install limit switches! Last night after machine/comp error! While away from the machine, the machine decided to plunge into my table. I noticed this today! Put a nice hole in my table and in the process, also snapped my endmill in half! Limit switches are next on my list of things to do with the machine! God, I hate when things like this happen. Just thought I needed to get this off my chest -Jason

I must be missing something..... How do limit switches prevent that, unless *all* your tools are the same length?

Regards,
Ray L.

[SpeedsCustom]

Because If I set the limit switch low enough, it will trigger the z-axis to stop before is wants to destroy my table.


-Jason

[alexccmeister]

Ya! I would like to know as well how a limit switch on the Z axis will stop the end mill from damaging the table. I am going to install some as well.

[SpeedsCustom]

....I never cut anything really that is that low to the table except for yesterday. The machine went haywire on me and put a hole in my table, if I have a limit switch there that will act like a Safety switch, the z-axis will never go down that far????....


-Jason

[Torsten]

Longer Tools will always cut deeper.
Regardless where you set your Limit switch to?
Maybe you can setup a temporary adjustable Limitswitch, that can be positioned for a peticular toollength on a long/overnight program run.

[SpeedsCustom]

Originally Posted by Torsten Longer Tools will always cut deeper. Regardless where you set your Limit switch to? Maybe you can setup a temporary adjustable Limitswitch, that can be positioned for a peticular toollength on a long/overnight program run.

Thats what I mean, in a way. But also, I will end up making my tools all the same length anyway for tool changes. So.....



-Jason

[cyclestart]

Go with Torsten's advice. Sliding limits, trigger or switch, are used on many industrial machines.

[GIRNIE]

ok speed custom I am new at this to so keep this in mind.....as far as I have seen thus far as you write your program of G-code you can establish a series of depth cuts and a piont at which to NOT cut below based on your Z zero in relation with your part depth......if I am off base just ignore. I have have my taig go bonkers and cut to much on a roughing/profileing pass but that was around 8mm deep in 6061 and it just stopped the psindle....make me jump like a rabbit in shooting field to....chuckles

[Jay C]

Soft limits. use home switches (opto interrupters) on X and Y, but not Z. If you mill goes off the deep end often (more than once), maybe you should be addressing the root cause and not the symptom.

[Sonicmook56]

please document your progress. I've been wanting to add limit switches to my Taig as well.

[Hirudin]

A nice example of limit switches on a Taig check out the rest of the site too, lots of cool ideas.

[edit]Just to make sure there's no confusion, that isn't my site (although I do plan to ste... borrow some of the ideas[/edit]