Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: kolias on December 17, 2012, 06:29:06 PM

Title: How do you Resume Cutting?
Post by: kolias on December 17, 2012, 06:29:06 PM
When I run a gcode cutting whatever I have on my table and I press the E-Stop for whatever reason, if I don’t mode the tool can I press the "Cycle Start" button to resume my cutting from where I stopped?

When would you use the button "Run from Here"
Title: Re: How do you Resume Cutting?
Post by: olf20 on December 17, 2012, 07:45:00 PM
Click feedhold then run to start again. I have done this
numerous times and have had great luck. Some others
have had issues with it.
Hope this helps!!
olf20 / Bob
Title: Re: How do you Resume Cutting?
Post by: kolias on December 17, 2012, 09:59:23 PM
Thank you Bob but I dont have feedhold on my Mach3 screen. In any case this will not help me because my question was how to resume my cut after I hit the E-stop.

My cnc is new so I'm always on guard for any strange noises and today during a trial cut I heard a strange sound from the spindle and immediately I pressed the E-Stop. Since it was a trial cut I did not mind to scrap it but I would like to know how you resume your cut after an E-Stop (assuming that you dont move the tool)
Title: Re: How do you Resume Cutting?
Post by: BR549 on December 17, 2012, 10:27:49 PM
To resume after an Estop you would

Re Reference the machine

Reset the Origin (Xo Y0 Z0)of the part to be machined

Use Set Next Line to move to the line of the gcode program where you would like to restart at OR move to the line position in the Gcode screen

Use Run From Here to restart your Gcode program, Follow the prompts to restart.

Hope that helps, (;-) TP
Title: Re: How do you Resume Cutting?
Post by: budman68 on December 18, 2012, 04:59:36 AM
Thank you Bob but I dont have feedhold on my Mach3 screen. In any case this will not help me because my question was how to resume my cut after I hit the E-stop.

My cnc is new so I'm always on guard for any strange noises and today during a trial cut I heard a strange sound from the spindle and immediately I pressed the E-Stop. Since it was a trial cut I did not mind to scrap it but I would like to know how you resume your cut after an E-Stop (assuming that you dont move the tool)

See the problem is when you hit an E-stop or turn off the machine, the motors move a bit, so you can't just start it right back up from where you are because you will not be in the same exact position.

This is why you must follow the procedure that Terry (BR549)  has described in the post before mine.

Dave
Title: Re: How do you Resume Cutting?
Post by: kolias on December 18, 2012, 09:20:57 AM
Thank you all
Title: Re: How do you Resume Cutting?
Post by: rrc1962 on December 18, 2012, 09:48:18 AM
You should just add a feedhold button in screen designer.  feedhold then cycle start is SOOOOOO much easier than Run From Here when you just need to pause and resume.
Title: Re: How do you Resume Cutting?
Post by: JohnHaine on December 18, 2012, 11:30:00 AM
Another approach when you are learning is to use the single step feature which executes one block (line) at a time, each time you click Cycle Start.
Title: Re: How do you Resume Cutting?
Post by: EJParrott on December 18, 2012, 12:10:25 PM
If you re - reference the machine, why do you need to reset the origin of the part?  That's a bit crap!  Mostly we don't have to re - reference a machine at work after Estop, but there should be no need to reset the origin of a job, quite often the work we do you can't re set the origin after you've started machining - like turning a ball for example
Title: Re: How do you Resume Cutting?
Post by: BR549 on December 18, 2012, 01:09:45 PM
That should have been one OR the other. A LOT of commercial machines have absolute encoders that as long as the batteries are good you don't loose position on reset.

With MAch3 when you reset Mach dumps everything in the buffer and looses all reference to position.  AND the machine may MOVE when the drives are turned off.

YOUR choice, your part, your machine

(;-) TP
Title: Re: How do you Resume Cutting?
Post by: Mountainman on December 25, 2012, 03:31:11 PM
Ok say you hit feedhold then you have the machine move to tool change position.  How do you have it resume where you left off.  I would like to active thsi whole process with an input.  Input2=Feedhold then tool change position.  Then when cycle start activated the whole thing resumes where it left off.  Basically hit one button and it goes to tool change position, hit cycle start and it resumes right where you left off.  No messing around with the mouse or keyboard.  anybody done this?  Enjoy your holiday everyone.     
Title: Re: How do you Resume Cutting?
Post by: BR549 on December 26, 2012, 04:19:05 PM
NORmally when it is time for a tool change you are finished machining where you stopped. It is the programmer's job through Gcode to move to the next start position AFTER the toolchange and resume machining there.

Just a thought , (;-) TP
Title: Re: How do you Resume Cutting?
Post by: Mountainman on December 26, 2012, 06:15:57 PM
Normally when it is time for a tool change you are finished machining where you stopped. It is the programmer's job through Gcode to move to the next start position AFTER the toolchange and resume machining there.

Just a thought , (;-) TP

Usually after a tool change you just hit cycle start and everything goes off on its own where it left off. 
Title: Re: How do you Resume Cutting?
Post by: ger21 on December 26, 2012, 08:15:19 PM
I have my M6 macro go to the toolchange position, and wait. When you push Cycle Start, it zeroes the new tool, and continues cutting. As fully automated as you can get without an ATC.
Title: Re: How do you Resume Cutting?
Post by: donna on August 14, 2015, 02:56:38 AM
if you wanna cut your resume you have to click on feedhold as i know as far as possible. i think it will work but don't know what percentage it will work as i just know it and tried and it is also dependable to the luck as i know. so please keep it up many times i hope it will work for you and you can get it helpful . i never did it but i know the basic of it , so please don't mind if it will not work. thanks