Hello Guest it is June 17, 2019, 09:40:47 AM

Author Topic: Finish issue cutting round parts  (Read 1530 times)

0 Members and 1 Guest are viewing this topic.

Finish issue cutting round parts
« on: September 16, 2013, 08:57:40 PM »
After playing around with our new machine cutting simple profiles in plates I have graduated to cutting some 3D stuff. One issue I am having is the finish on circular cuts... it seems to be cutting "facets" almost
like its cutting straight point to point with no smoothing.

The program I am using spits out XY points (Catia NC) and for the most part I was using G1 for profiles... I tried using G2/3 depending on direction but it gave a IJ error and even substituted G12/13 but it did not make a bit of difference. I don't want to resort to using IJ mode unless I have to... I thought there would be a easier way to get a smooth finish without manually writing code.

Is there a way to smooth out the XY path I have?

Offline BR549

*
  •  6,871 6,871
    • View Profile
Re: Finish issue cutting round parts
« Reply #1 on: September 16, 2013, 09:05:38 PM »
The only way you will get smooth surfaces is if you set your Cam to do arcs instead of segmented lines. The IJ error you got was probably from the Program NOT setting the G91.1 mode correctly, it should have been in the safety block of the program.

Just a thought, (;-) TP
Re: Finish issue cutting round parts
« Reply #2 on: September 16, 2013, 09:29:20 PM »
My biggest issue at the moment is I am a CAD guy stuck doing programming that I have never been trained at... My CAM only seems to work in ATP mode so I have been using all the XYZ moves and copy pasting G code into it before sending to the machine... no post processor. I should look into setting up my CAM package properly but I am not familiar with all the options.

Offline BR549

*
  •  6,871 6,871
    • View Profile
Re: Finish issue cutting round parts
« Reply #3 on: September 16, 2013, 09:56:01 PM »
You are a gutton for punishment not using the CAM (;-) I would TAKE the time to get the CAM setup to post correctly. Probably save years of you life in stress and strain.

Been There, (;-) TP