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Author Topic: Public Comment Requested: Calibration and QA of 3D Instruments Used for VCM  (Read 2982 times)

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Offline Alan Zheng

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The Technical Working Group for 3D Toolmark Technologies (TWG3D2T) is soliciting public comments on their draft “Best practice guide for the calibration and quality control of 3D surface topography measurement instruments used for Virtual Comparison Microscopy (VCM) of toolmarks.” Please review the document and provide any comments you may have. All comments will be adjudicated by the Quality Assurance task group after the public comment period has closed. Thanks!

Please visit to download the document and public comment form if you’re interested. The public comment period will start on November 1, 2023 and end on November 30, 2023. For more information or help with accessing the files, please email
« Last Edit: October 31, 2023, 03:40:45 PM by Alan Zheng »

Offline rhlilien

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  • Ryan Lilien
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Thanks Alan! I would definitely encourage labs to read and comment on this document.

One small step for TWG3D2T, one giant leap for VCM! 

Happy Thanksgiving Everyone


Offline Zak Carr

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One last bump for this topic before the comment period is over...
Please take some time to read and comment on this document.  Much effort has gone into the development of this document to serve the discipline as we transition into VCM.
Zak Carr
Cadre Forensics

Offline Alan Zheng

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