G code Generator for Mills

Duplicate post removed. See next post

BigJohnT wrote:

Actually the inch/mm give sane presets lol.

That's nice. I like that. But I think it would be better to get rid of the separate unit setting, and instead just read the "Preamble" field and look for G20/G21. Maybe that's already in your plan...

Checked 1.7.04. Export to Axis and save to file works perfectly.

Step over issue:

I enter:

• Tool Diameter: 4mm
• Step over: 75% (or empty)
• X Length: 50mm
• Y Length: 15mm
• X Reference: 0
• Y Reference: 0
• X Start: (empty)
• Y Start: (empty)

I get:



The work piece rear edge is positioned at Y0.0mm
The first horizontal cut will be made at Y-3.0mm
With a tool radius = 2.0mm, the cut area will then range from Y-1.0 to Y-5.0, leaving the first mm from the edge untouched, right..?
The left, right and bottom edges will also be cut, leaving 1mm along the outside uncut in the same way.

I expext:
With a 4mm tool and 75% step over, the tool should cut 3mm into the material in each move. So to me that means the first move should be from X-2.0 Y-1.0 to X49 Y-1.0, and so on.

I assume:
X and Y Length corresponds to the size of my work piece to be cut.

I have to admit that I am a complete newbie in CNC and CAM processing and have a lot to learn, so I might very well be completely lost here. But I really believed I had a fairly good grasp of this...

There are more issues here...

When I tried to shift the start position to where I want it to be with Y Start = -1.0, I got This:


(Same parameters as before, except for Y Start)

Or with more offset: Y Start = 10.0




Not what I expected...