Standardized test shapes
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- sliptonic
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Standardized test shapes
I believe the first step to a better, faster, more reliable CAM system is better test shapes. If you aren't a programmer but want to help out, this is a good place to get involved.
http://cnctorture.xyz/
What do you guys think? If you agree, I'd like to pin this topic so it doesn't get buried.
http://cnctorture.xyz/
What do you guys think? If you agree, I'd like to pin this topic so it doesn't get buried.
Re: Standardized test shapes
Go for it!
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Re: Standardized test shapes
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Re: Standardized test shapes
What a great idea.
It would also perhaps pave the way for further tutorials/troubleshooting goto for users.
It would also perhaps pave the way for further tutorials/troubleshooting goto for users.
Re: Standardized test shapes
Of course there's my +1 on this, but after going over the examples you already have, not sure what could be added. Maybe some "basic" mold shapes for the dropcutter / waterline?
Mark
Mark
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- sliptonic
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- Posts: 3460
- Joined: Tue Oct 25, 2011 10:46 pm
- Location: Columbia, Missouri
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Re: Standardized test shapes
That's a great topic for discussion! I can think of several areas that i've intended to work on and haven't gotten to yet:
- Parts with features that need boundary extension
- 3D drilling on a 4th Axis (outside of rotary)
- 3D drilling on a trunnion table (inside of rotary)
- Slotting features
- Dovetail features
- keyhole features
- how about a part for a theoretical marquetry/ inlay operation
- How about a threaded hole?
- exterior threaded region for lathe
Re: Standardized test shapes
Something like this? Small threads are pseudo trapezoidal - large is a 3 start flute. Should work for both a mill 4th axis and lathe, with or without a forming tool. A little added extra, One end of the flutes (starts?) is on a curved surface. If it's something your looking for, I'll attach the model.
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- sliptonic
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- Posts: 3460
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Re: Standardized test shapes
Absolutely!
How about adding an internal thread to the end?
How about adding an internal thread to the end?
Re: Standardized test shapes
Yes, I'm rather surprised that there are not standard NIST test shapes or something similar. I think I posted a question on CNCzone but did not get a lot of feedback.
I started looking for some test patterns last year but did not spend too much time on it since my hardware is not quite finished.
Making a repository is definitely a good idea , though I find it hard to believe that this does not already exist somewhere.
https://www.researchgate.net/figure/Mac ... 0_44020612
The classic "Diamond Circle Square" test and others:
https://wiki.shapeoko.com/index.php/Cal ... test_files
https://www.youtube.com/watch?v=CkZJ-zUqlhk
NAS979
https://www.youtube.com/watch?v=31uhPMY5Bes
Seems there are ISO tests but this link is a paywalled document. I guess some searching may find a copy.
https://www.iso.org/standard/54730.html
Here is a dimensioned ISO drawing which could be converted into a 3D model or Gcode machine file.
https://www.sis.se/api/document/preview/917991/
ISO 230-4
https://www.iso.org/obp/ui/#iso:std:iso:230:-4:en
This a bit theoretical but looks good:
https://arxiv.org/pdf/0910.1758.pdf
Ball-bar testing apparatus: interesting.
https://resources.renishaw.com/en/downl ... sts--99016
I started looking for some test patterns last year but did not spend too much time on it since my hardware is not quite finished.
Making a repository is definitely a good idea , though I find it hard to believe that this does not already exist somewhere.
https://www.researchgate.net/figure/Mac ... 0_44020612
The classic "Diamond Circle Square" test and others:
https://wiki.shapeoko.com/index.php/Cal ... test_files
https://www.youtube.com/watch?v=CkZJ-zUqlhk
NAS979
https://www.youtube.com/watch?v=31uhPMY5Bes
Seems there are ISO tests but this link is a paywalled document. I guess some searching may find a copy.
https://www.iso.org/standard/54730.html
Here is a dimensioned ISO drawing which could be converted into a 3D model or Gcode machine file.
https://www.sis.se/api/document/preview/917991/
ISO 230-4
https://www.iso.org/obp/ui/#iso:std:iso:230:-4:en
This a bit theoretical but looks good:
https://arxiv.org/pdf/0910.1758.pdf
Ball-bar testing apparatus: interesting.
https://resources.renishaw.com/en/downl ... sts--99016
Re: Standardized test shapes
What is NIST?
I have the feeling it would be helpful, if you don't only provide lots of links and documents, but map your findings to FreeCAD, e.g. instead of
it would be great to have the FreeCAD file.Here is a dimensioned ISO drawing which could be converted into a 3D model or Gcode machine file.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.