lathes?

[ipsod]

Hi.
Thanks for the cool code.
Would it be hard to add lathes?
Any chance of it happening?

[WillAdams]

That's an interesting question. I believe it would work to support a 4th axis --- it would just have to be added by:

• defining an option for stock such as would be used on a lath
• defining the rotation G-code
• working out how that rotation would interact with cutting operations

It's something I've thought about --- will look into it once I finish the current Python re-write and have gotten the OpenSCAD wrapper working again.

[ipsod]

Cool! I'm just starting to learn lathes, and would appreciate having the tool to help.

Really interesting code-base. Hope I can find time to explore it more deeply some day. I've been interested in literate programming for a while now (Leo text editor is the only example I can think of, but man, what an example).

[WillAdams]

We will have to see.

Lots more on Literate Programming at: http://literateprogramming.com/ and esp. see: http://www.literateprogramming.com/adventure.pdf

EDIT: I also maintain a list of Literate Programs published as books (and a couple of helpful texts): https://www.goodreads.com/review/list/21394355-william-adams?ref=nav_mybooks&shelf=literateprograms

[WillAdams]

However, it seems that PythonSCAD itself has some support for this already:

https://old.reddit.com/r/OpenPythonSCAD/comments/1hzdkcq/odd_difficulty_with_redefined_definition/m6srd95/

[WillAdams]

Do you have an example G-code program which shows a basic cut on a lathe as controlled by a CNC?

Found:

https://www.cnccookbook.com/g68-g69-rotate-coordinate-cnc-g-code/

but would like to see a straight-forward and compleat file.

[ipsod]

No, not really. I've found that it probably won't be easy, because g-codes for lathes are so cool. Check out G46 canned turning cycle. It's like lathes get to skip CAD and CAM and just go straight to making the part.

…

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