Thread Inspection with Gom Software

[[ca...]]

Hello everyone,

We think about using  GOM software for thread inspection purposes. Which functionality does the GOM 2021 or 2022  have specifically to inspect thread geometry?

Is there any documentation that I could use as reference?

Many thanks,

Canset

[[Na...]]

Hi cansetm,

we don't have a modul or a configuration like Blade Inspect for threads. I am also not aware of a documentation, I'm afraid.
From my experience a cylinder based section (https://techguide.gom.com/en/gom-software-2022/article/cmd_section_create_multiple_cylinder_based_section.html) was a useful tool for this kind of inspection. 
What exactly do you want to measure?

Nanno

[[Au...]]

We have recently been looking into the same type of inspection with our ATOS scanners. Where our largest downfall is having to inspect small threads and only being able to see so deep into a hole. On our CMMs we use true position locators we are currently in the process of implementing these into our scanner. That may be a good solution depending on what type of threads you would be inspecting.

[[Ja...]]

I did some work with a client on various thread metrics.  There is no direct tool but we were able to build the metrics that were interesting to them.   However this was external thread in plastic.   If in metal down a hole...i personally wouldnt go near this with cmm nor 3dsl.  A good solution isto use a thread guage for checking the hole then probing/scanning the gauge end ( may need to be customised for this) to get the hole position.

[[Au...]]

That solution is similar to what we are currently testing. We use these on our CMM's/PCMM's. Attached is a picture of the tool. The only drawback we currently have is the shininess of the locator itself so we are working with the manufacture to provide them with a "dull" finish.