Machsupport Forum

Mach Discussion => Feature Requests => Topic started by: Scott on December 15, 2006, 09:45:36 AM

Title: Safe Z on Feedhold
Post by: Scott on December 15, 2006, 09:45:36 AM

I'd like to have the choice to have the Z axis raise to the safe Z setting upon a feedhold with a return to depth upon resuming with cycle start.  The cutter can overheat pretty quick when left down in the material upon a feedhold shortening the life of the tool.

Regards,

Title: Re: Safe Z on Feedhold
Post by: fer_mayrl on December 15, 2006, 11:47:18 AM

That is a great suggestion. And while were at it, how about the option of turning off outputs, and turning them back on on cycle start.
Regards
Fernando

Title: Re: Safe Z on Feedhold
Post by: Graham Waterworth on December 16, 2006, 05:59:47 PM

Not a good idea when using a t-slot cutter!

Graham.

Title: Re: Safe Z on Feedhold
Post by: Chaoticone on December 16, 2006, 06:59:40 PM

You can set it up now to do a safe Z on stop. In the safe Z set up.

Title: Re: Safe Z on Feedhold
Post by: fer_mayrl on December 16, 2006, 08:02:20 PM

Can It be done optionally when feed hold is pressed?
that way you can turn it off when using a t-slot, dovetail or keyhole cutter.
Regardss
Fernando

Title: Re: Safe Z on Feedhold
Post by: Chaoticone on December 16, 2006, 08:08:18 PM

I think you could just turn it off, uncheck it. There may be somewhere else like on the settings page, not sure. I'm running a different screen set.

Title: Re: Safe Z on Feedhold
Post by: Brian Barker on December 17, 2006, 10:46:17 PM

Not going to happen on a feedhold :( Stop only...

Title: Re: Safe Z on Feedhold
Post by: Scott on December 22, 2006, 11:54:36 PM

The problem with doing it on a "Stop" is that it's generally non-recoverable (meaning that I have to re-reference and start over).  As it is, if needed, I will hit "Feedhold" and then "Stop" to get the tool up and out of the material as quickly as possible.  Takes a little getting used to from what I normally would have done, isn't as quick to get the tool out, but at least you don't overheat the cutter or loose position.  Not that I do it everyday, but once in a while, stuff happens.  ;)

Title: Re: Safe Z on Feedhold
Post by: Hood on December 23, 2006, 05:17:20 AM

Scott
 not sure if it would work but maybe make a new VB button with the OEM for hold then stop. Would this work?

Hood

Title: Re: Safe Z on Feedhold
Post by: Hood on December 23, 2006, 05:30:53 AM

Just tried it and it seems to work but its just on the home computer and not on the mill so I cant be sure.
Hood

EDIT
 Nope wont work as when you resume the code it will just stay at the safe Z height until the next commanded Z move :(

Title: Re: Safe Z on Feedhold
Post by: Brian Barker on December 23, 2006, 09:51:13 AM

You could write the original position to a Var in mach3 and swhen you press resume you could have it move back to that position :)

Problem solved ;)

Title: Re: Safe Z on Feedhold
Post by: sshneider on December 23, 2006, 08:59:39 PM

Once again, I feel like I'm living in a cave and missing something...

If you feedhold first, then press stop, isn't this accomplishing the same thing.  I've done this a ton of times and have never noticed any missed steps or loss of position.  ????

Thanks,
Sid

Title: Re: Safe Z on Feedhold
Post by: Hood on December 23, 2006, 09:09:28 PM

Pressing hold then stop is the correct order to do things and you wont loose steps or position. I think what Scott is wanting to accomplish is to move the tool out of the work fairly rapidly on a feed hold. Depending on how his machine is set up that could be quite a slow process with having to press two on screen buttons. With a touch screen or physical buttons its not long but if using a mouse its a bit longer and iif there are high spindle speeds involved on a machine such as a router a second or two can burn the tool and workpiece.

Hood

Title: Re: Safe Z on Feedhold
Post by: sshneider on December 23, 2006, 09:14:34 PM

Aha, now I get it- Thanks...