Invalid Arc Target

Elite Series (Masso & Redline) (Gen 1)
1

The Elite Series with @Redlinecnc Controller is giving me an error as follows;

Invalid Arc Target Line 29122: G2X6.8122Y3.1899I-0.0456J0.0393

I’m using VCarve Pro 12.505 and Post Processor ‘Onefinity Redline (inch)’

It seems like a Post Error of some sort, hopefully someone has seen this error?

Regards,

After reading a bit on G2 I hand edited the J0.0393 to J0.0392 and the code now runs. I tried the Redline Post processor and got the same error FYI. Not sure exactly how to not have a rounding error that the Redline does not like?

2

In your application, it might be worth extending the precision of the post processor by one decimal place to see if the rounding VCarve is performing is causing the issue especially if changing from J0.0393 to J0.0392.

You can edit the RealTime post processor with a test editor like Notepad or VSCode. Change the following lines from 1.4 to 1.5:

image
image483×179 4.05 KB

The “.4” part of the number at the end sets the number of decimal places. Change this to “.5" like so:

image
image437×174 4.2 KB

5 Likes
3

We also had the same error running a complex pocket on an elite foreman (gen 1) / redline early adopter controller / firmware 1.4.9 / VCarve Pro 11.554 / post processor Redline (inch) v1.0

The error:

N479318G1X10.6587Y218582
Error line: Invalid arc target

When running this particular section of a much larger GCode File:

G1X9.3371Y20.6175
G1X9.3267Y20.5814
G1X9.3136Y20.5262
G2X9.2531Y20.5251I-0.0304J0.0077
G1X9.2456Y20.5507
G1X9.2374Y20.5821
G1X9.2294Y20.6188

Havent tried the fix above from RTCNC yet (thank you @RTCNC). If you dont see a follow up post, assume it worked :slight_smile: