How to scan 40 000 parts effectively?

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vondrej
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Re: How to scan 40 000 parts effectively?

Post by vondrej » Fri Jul 13, 2018 5:40 am

@TommyMaddox
We are located in Czech Republic and we are looking for any information which can help us decide which method is the best for our case.

@jedfrechette
It is possible that we will choose different method than scanning. I have experiences with modelling and for me it is faster than scanning but it depends on shape of the parts you are working with. Of course i will mention that content based image retrieval is the most advanced in my output. That helped me a lot.

Thank you
OK

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stevenramsey
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Re: How to scan 40 000 parts effectively?

Post by stevenramsey » Fri Jul 13, 2018 8:21 pm

I'm sure you could just do this with 2D images. I think google sell some of there tech for internal use. a reverse image look up will spot similar items really quick. Build a small photogrametry booth maybe 10 cameras. place the item in the middle a quick snap and move on to the next. Not sure you would need to scan anything.
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nickherath
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Re: How to scan 40 000 parts effectively?

Post by nickherath » Sun Jul 15, 2018 1:30 am

You are looking at a serious number of parts there so some level of process automation is going to be essential, also as you are in a manufacturing environment you are certainly going to be looking at sub-millimetre tolerances (ie. thread details and thin edges on parts) that you simply won't achieve with something like a dot-product or photogrammetry. With this number of parts you have of all sizes it is most likely any one system is not going to meet all of your requirements.

A white/blue light scanning system from GOM or Zeiss is a good place to start as these are high accuracy metrology grade systems that offer good automation workflows.
https://www.gom.com/metrology-systems/atos.html
http://optotechnik.zeiss.com/produkte/3 ... ng/comet-6

A more manual option would be a handheld/arm based system from manufacturers such as Romer, Faro or Creaform

You should look at the solution as part of a whole of business plan not only for archival purposes but also for inspection and QA. Continental already have metrology labs in most/all of their facilities around the world so speaking to the staff in your metrology labs would be a good place to start.

Start with defining your essential criteria (cost, accuracy, size, automation etc.) then start talking to scanner manufacturers who can demonstrate their systems that may meet your requirements.

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Re: How to scan 40 000 parts effectively?

Post by Felix_the_Cat » Sun Jul 15, 2018 3:29 pm

I hate to be I stick in the mud here, but I want to reiterate something said earlier - the method by which you gather data is inconsequential compared to the incredibly complex task of adding intelligence and search ability to it.

I think folks are glossing over what you actually want to do with the data in their excitement to get you scanning.

It sounds awesome, but the devil will be in the details. I most certainly wouldn't want to have to crack that nut. Yikes.

I can't even imagine how you would do this. A database maybe? I mean maybe you could get tineye or google to make you a one off version so you could search images? But that still doesn't solve how you would handle identifying details. And these things tend to be black holes for time and resources.

I humbly suggest you figure out how you are going to parse that data before you jump in with both feet here. Otherwise you might end up spending lots of money and lots of time with nothing to show for it.

Do you have the luxury of performing vast quantities of research and development? I usually do not.

People want results! Know where you are going before you start driving.

Good luck! I hope you find a solution


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vondrej
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Re: How to scan 40 000 parts effectively?

Post by vondrej » Thu Jul 19, 2018 6:17 am

@nickherath
I know what you mean. But people here did not even tell me any requirements and i wrote to my report that my superior should go to excursion to people here who work with 3D scanners in Continental.

@Felix_the_cat
That is what i wanted to hear. Pros and cons of this method and it looks like scanning is inappropriate and there are things which are difficult to solve. I wrote to my report that there is a problem with comparing photos and 3D models.

By the way i got answer and it looks like this last week with scanning. I think i will start taking and somehow comparing photos so maybe i will ask you to some more questions.

Thank you so much for your answers
OK

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Re: How to scan 40 000 parts effectively?

Post by jamesworrell » Thu Jul 19, 2018 7:12 am

Get in touch with the guys from SiteSee .. might be able to help .. they are using Machine Learning / AI to recognise telecom towers from photogrammetric generated point clouds ..

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Re: How to scan 40 000 parts effectively?

Post by Thunk3D » Thu Jul 19, 2018 9:40 am

Thunk3D Handheld 3D Scanner can do this job.

It integrated two scan range in one device. And you just need do choose the right mode for different material.

There are two scan mode: one is " fine" mode with light range 120*90mm and dot pitch 0.12mm and the other one is "common" mode with light range 300*240mm dot pitch 0.24mm. Both mode support feature and mark register.

furthermore, the accuracy is up to 0.04mm, and dot pitch is optional, you can choose right dot pitch, scan mode and register method according the object.

Attached are some images for your reference
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