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Author Topic: CUT QUALITY REALLY RUFF  (Read 6734 times)

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CUT QUALITY REALLY RUFF
« on: February 27, 2009, 12:55:01 PM »
HELLO MY NAME IS MARK AND I WORK AT EMPIRE CUSTOMS USING A ER ROUTER 5 X 10 TABLE USING A 1650 HYPERTHERM PLASMA CUTTER. USING MACK 3 WITH MP1000THC. WITH THE HELP OF EZ ROUTER WE HAVE FINALY GOT THIS THING GOING BUT NOW WITH THE SOFTWARE RUNING AND TALKING TO THE MACH 3 AND THE TABLE MY CUT QUALITY HAS DROPED DOWN.. THE GUYS AT EZ ROUTER ARETRYING TO FIGURE THIS OUT BUT I NEED TO FIX THIS ASAP.. HAS ANYBODY HAD ANY SIMLAR PROBLEMS? OH .. THE PROBLEM IS MY ARC ARE NOT CUTTING SMOOTH BUT VERY JAGGED .. THEY ARE SMOOTH IN CAD AND IN SHEETCAM AND IN MACH 3 SCREENS BUT WHEN I CUT THEM THE ARC ARE VERY JAGGED LIKE 1/8" THE START A NEW LINE AND NOT AN ARC .. I CAN POST PIC OF WHAT I AM SAYING IF NESCARY.. WE HAVE SLOEWD THE MACHINE DOWN FROM 550 TO 450 IPM.. AND OTHER IDEALS? ??? ???..
« Last Edit: February 27, 2009, 12:57:17 PM by EMPIRE_CUSTOMS »

Offline Hood

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Re: CUT QUALITY REALLY RUFF
« Reply #1 on: February 27, 2009, 02:07:26 PM »
Post a pic and also your code if you can.
Hood
Re: CUT QUALITY REALLY RUFF
« Reply #2 on: February 27, 2009, 06:39:32 PM »
i will post a pic on monday and code .. i was able to try a different profile and the cut quailty was better but not where it was ..but i will post pics and the tap file is that ok?

Offline Hood

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Re: CUT QUALITY REALLY RUFF
« Reply #3 on: February 27, 2009, 06:47:49 PM »
Yes thats fine, just thinking that your arcs in the code may actually be hundreds of small lines. Also have a look and see if your code has G61 in it, if it does then you may want to try replacing that with G64, if neither is in your code then put it in at the start (or via MDI) and see if that helps.
Hood
Re: CUT QUALITY REALLY RUFF
« Reply #4 on: March 02, 2009, 12:55:59 PM »




ok and here is the tap file for it.
Re: CUT QUALITY REALLY RUFF
« Reply #5 on: March 02, 2009, 12:59:05 PM »

Re: CUT QUALITY REALLY RUFF
« Reply #6 on: March 02, 2009, 12:59:52 PM »
sorry new forum new way to post pics

Offline jimpinder

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Re: CUT QUALITY REALLY RUFF
« Reply #7 on: March 02, 2009, 02:17:38 PM »
It is doubtful that your code will be in arcs, and is probably made up of many short, straight lines, since the only arc available in CNC is a circle.

To mitigate that, you can set Mach 3 to continuous velocity, which is what Hood said. This smooths out the short lines, by accelerating into the next line, before the previous lines has finished.G61 in your code means absolute stop after each line. G64 means continuous velocity.

I don't know what you are using to generate your code, or what system you are using to turn the plasma on and off, but check the code to make sure it is not turning the plasma off after every line.
Not me driving the engine - I'm better looking.
Re: CUT QUALITY REALLY RUFF
« Reply #8 on: March 02, 2009, 02:48:48 PM »
i use sheet cam to generate the tap file or the g-code..i know it runs completly with out stops .. is that what u mean or within the code turns off and on ??? ???...

Offline Hood

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Re: CUT QUALITY REALLY RUFF
« Reply #9 on: March 02, 2009, 03:00:14 PM »
Your code looks OK I think, please attach your xml file
Hood