wire edm arc problems

[Tim Pruett]

We recently updated our wire edm from version 6 to x6 and received a new post processor from our reseller. Were trying to write a program to wire a hole but were getting a "P70 arc error". I'm not sure which arc setting to use in the control def or if this is even the issue. Can anyone tell me how they have theirs set and/or do I need to get the post edited to output the code correctly. TIA

 

Tim

 

 

here's a sample of the version 6 code;

 

L0

G90

G92 X-1. Y.25

G00 X-1. Y.25

M20

M78

M78

M80

M82

M84

H1=.0093 F.06 E1271

M90

G01 G41 H1 X-.9375

G03 X-1.0625 I-.0625 J0.

X-.3975 I.0625 J0.

X-.93753 Y.252 I-.0625 J0.

G01 G40 X-.95352 Y.25149 M91

M90H1=.007 F E1272

 

Here's a sample from X6

 

G90

G92X-1 Y.25

G00X-1 Y.25

M20

M78 M78

M80M82M84

H1=.0071 F16.E1272

M90

G41G01X-.9375

G03I-.0625J0.

Y.252I-.0625J0.

G40G01X-.9535Y.2515

H1=.0057F.12E1273

[Del.]

Does your control definition under arcs>arc center type set at delta start to center?

[Tim Pruett]

That's the way it was set when I was getting errors. I tried it with every other setting and didn't get errors with, absolute, radius, and signed radius, but they drew a little funny at the machine and I was afraid to try any of them. I thought I would see from you guys how it is suppose to be set.

[Del.]

Is allow 360 arcs unchecked?

[Tim Pruett]

I unchecked it. the operator is running a program right now so I will have to have him check to see if it will work later. Also, I googled the error and somebody said it's because the post is outputting 4 place decimal and the machine is set to run 5 place decimal. I can't find in the post where to change it to 5 places.

[cncworker]

I also have had this error before. I am running X6 and using FX20 Mits edm. Sometimes when i program the geometry sent to me by the customer, it will give me that arc error. So i have to actually redraw the shape, or part or whatever it is, in MasterCam. MasterCam will program it just fine, but the machine won't like something in the program. I hope this helps.

[Tim Pruett]

Well I googled the arc error we were having. Turns out it was a combination. It had to be setup like Del suggested(thanks Del) but the post had to be edited to 5 place decimal as well. The machine is in 5 place so the post had to be also. Evidently the arc code wasn't accurate enough. Thanks for the help.

[Harry33]

I was getting the same error while doing circle mill. I unchecked the helical entry and it is working fine now.

[Johnward Holmeson]

On 11/16/2023 at 8:56 AM, Harry33 said:

I was getting the same error while doing circle mill. I unchecked the helical entry and it is working fine now.

Must be a fancy wire edm doing helical entry and all

[crazy^millman]

1 hour ago, Johnward Holmeson said:

Must be a fancy wire edm doing helical entry and all

I was thinking the same thing.