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josh
527 Vistas, 5 Respuestas

Need an option like Skew, CNC cutter is not square.

I found myself here after realizing that ACad 2024 does not have a skew command. I have a situation where a CNC cutter is not square and I can't use it because ACad does not have this seemingly simple command. Help if you can and want to.

 

 

 

[ The subject line of this post has been edited for clarity by @pendean Original: Suggestion board? Skew. ]
[INVENTOR provides the base .dxf only and does not skew, "Need an option like Skew from INVENTOR: CNC cutter is not square"]

pendean
en respuesta a: josh

FYI: suggestions to Autodesk's attention go here only https://www.autodesk.com/company/contact-us/product-feedback

SKEW can be interpreted in many ways in AutoCAD, which of these many suggestions in this similar post are you trying to do
https://www.cadtutor.net/forum/topic/49817-skewing-a-block-verticallyhorizontally/
josh
en respuesta a: pendean

I have a laser cutter which is currently about .4° out of square, for the purpose of this thread assume that this can not be changed or corrected on the machine at the software or hardware level. I normally use INV to make my sheet metal parts and export the flat patterns for cutting.

 

To cut a square on this machine I have to draw it out of square which is easy to do, not so much with a complicated flat pattern. My work flow would need to be INV>Autocad skew .4°>import into laser or better if I am missing something.

 

The links in the link that you provided are all dead in the OP. These posts are much closer to what I am trying to do with the one talking about LISP being the closest, I have never used LISP and for now I hope not to. I have included a drawing.

 

https://forums.autodesk.com/t5/autocad-lt-forum/skew-distort-from-a-rectangle-block-to-a-parallelogr...

https://forums.autodesk.com/t5/autocad-forum/stretch-on-an-angle-or-skew/m-p/11674799

TomBeauford
en respuesta a: josh

You could simply use the UCS (Command) to skew your User Coordinate System 0.4 degrees.

No need to code anything.

64bit AutoCAD Map & Civil 3D 2023
Architecture Engineering & Construction Collection
2023
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josh
en respuesta a: TomBeauford

Changing the UCS does not do what I need, it changes both the x and y axis and I need the y to stay put while the x sees a .3935° rotation.

All vertical lines at 90° need to stay at 90°, all horizontal lines at 0° need to change to .3935° and everything in between needs to change. I need to trick the machine by altering my drawing so that any feature which would involve using the gantry, or X axis, has a slight change in angle. 

pendean
en respuesta a: josh


@josh wrote:

...what I am trying to do with the one talking about LISP being the closest, I have never used LISP...


Not a problem: here is an online tutorial showing the different ways to load LISP, its easy to start as long as those LISP are actually what you need

https://www.lee-mac.com/runlisp.html#:~:text=How%20to%20Run%20an%20AutoLISP%20Program

 


@josh wrote:

...for now I hope not to...

 


sadly sometime you don't get a choice. See if any others respond then decide on your next steps.