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G Code showing too many coordinates

21 REPLIES 21
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Message 1 of 22
charizards
627 Views, 21 Replies

G Code showing too many coordinates

Hi,

I'm new to fusion 360 and have a 7 sided shape that I would like to machine out using 2D contour mode. I'm expecting just 8 different coordinates for the G Code but I'm left with a 242 line long code. What setting am I missing here?

 

I've been using CATIA and the same settings and it's giving me the set of coordinates that I want. 

 

Preview of code:

adindaasmoroFB53C_0-1689690870864.png

 

Many thanks 

 

21 REPLIES 21
Message 2 of 22
seth.madore
in reply to: charizards

Hmm. Is the contour comprised of splines?

Any chance you could share your file?
To share your file:
File > Export > Save to local folder, return to thread and attach the .f3d file in your reply


Seth Madore
Customer Advocacy Manager - Manufacturing
Message 3 of 22
DarthBane55
in reply to: charizards

your arc is in 3d, meaning it is not planar flat.  So it interprets your arc as a 3d contour, then it becomes point to point.

To remedy that, if you have 1 side of this arc that is planar, pick that one.  If not, you need to make a sketch and make a 2d arc on a plane.  You can slice the model somewhere in the middle where it is solid, it will then become flat.

Coming from Catia to Fusion...  ****, life is tough man!!  good luck!

 

EDIT: sorry Seth, I was typing when you answered so I didn't see your answer until after I sent mine.

 

EDIT 2:  too funny, the word "d_a_m_n" is banned it seems!  lol

Message 4 of 22
charizards
in reply to: seth.madore

It's all angular so I don't think there should be any splines

 

Edit: Deleted model file

Message 5 of 22
charizards
in reply to: DarthBane55

Hi Darth Bane

Thanks for the reply

There aren't any arcs in my model that I know of. See below for attached file. 

Message 6 of 22
seth.madore
in reply to: charizards

Hmm, looks like a pretty simple operation. What post processor are you using? (it's not clear in your NC Program)


Seth Madore
Customer Advocacy Manager - Manufacturing
Message 7 of 22
charizards
in reply to: seth.madore

I'm just using the Autodesk Generic XY one that I've slightly modified. I've tried using other posts and still get the same set of coordinates. 

Message 8 of 22
seth.madore
in reply to: charizards

Can you share that post processor here? The only point-to-point code I'm getting is for the vertical lead-in/out radii. Turning those off gets me this:

 

redacted
M9

 


There's still room for improvement 🤔



Seth Madore
Customer Advocacy Manager - Manufacturing
Message 9 of 22
seth.madore
in reply to: charizards

Slightly increasing my lead-in/out arc to 1mm ends up with code as such:

 

redacted

 


Seth Madore
Customer Advocacy Manager - Manufacturing
Message 10 of 22
DarthBane55
in reply to: seth.madore

I saw the 3d lead-in, but was really puzzled by the 2d leadout which is point to point.  There is a size limit to get an arc?  Oh, isn't that set in the post?

Also, the 2nd profile was not chained, need to chain the 3 into 1 single chain.  Altho that did not affect the result, but I think it's by luck.

Message 11 of 22
charizards
in reply to: seth.madore

Sure, I've attached it to this post. Is the way I've been sketching the model wrong by any chance? I've just sketched onto the xy plane and extruded so it shouldn't have any angles and should be quite straight forward. 

Message 12 of 22
seth.madore
in reply to: charizards

What is your actual machine and control? The XY post is outputting a CSV file and it's....interesting, to say the least


Seth Madore
Customer Advocacy Manager - Manufacturing
Message 13 of 22
DarthBane55
in reply to: charizards


@charizards wrote:

Is the way I've been sketching the model wrong by any chance? I've just sketched onto the xy plane and extruded so it shouldn't have any angles and should be quite straight forward. 


Nothing wrong at all, it has to do with the size of the arc on the lead-out.  I'll let Seth figure out if that is a setting in the post, but I think there is a "min and max arc" setting somewhere.  That lead-out is really small...

 

Probably something to do with these values:

1.png

Message 14 of 22
charizards
in reply to: seth.madore

Redacted

Message 15 of 22
seth.madore
in reply to: charizards

What is the actual machine and the control?


Seth Madore
Customer Advocacy Manager - Manufacturing
Message 16 of 22
charizards
in reply to: seth.madore

It's henri line gica mill 29 HS5 with Siemens Sinumeric 840D CNC Control

 

Edit: Put in the wrong control

Message 17 of 22
seth.madore
in reply to: charizards

The Sinumerik 840D post gives me this for code:

 

 

(redacted)

Of course, that's after removing the vertical lead-in radii and increasing the lead-in/out radius to 1mm


Seth Madore
Customer Advocacy Manager - Manufacturing
Message 18 of 22
charizards
in reply to: seth.madore

Thank you so much! I'm looking at sample codes that are on the machine and it doesn't have G0 or G1 before the coordinates. Is there a setting I can change to have it similar to this? Or will that code run fine?

 

Edit: Deleted image

 

 

Message 19 of 22
seth.madore
in reply to: charizards

G0 and G1 are "Modal", they remain activated until a Reset, M30 (program end) or power cycle. In your image above, there's a G1 at the beginning and a G0 at the end.


Seth Madore
Customer Advocacy Manager - Manufacturing
Message 20 of 22
charizards
in reply to: seth.madore

I see now. Thanks!

 

Could you delete or modify the G Code in your replies please? I don't want the shape available to the public. 

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