Low cost 3d scanner advice is needed

  • I just sucseed to adapt used Kuka KR210 robot as soft materials milling robot. According the plans, I should need 3d scanner suitable for the following two tasks:

    1. Scanning spatial 3d models in 0.1mm resolution in space range 4x3х2m;

    2. Calibration of Kuka robot.


    I need your advice for the best low cost 3d scanner, suitable for the mentioned two tasks. Thank you.

    Edited once, last by Gocea ().

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  • How large are the models? Because robot accuracy is not going to get you 0.1mm over 1000mm ranges -- heck, not even 100mm distances. So laser-line sweeping is probably not doable, not without ~$150000 in hardware and software.


    You'll need something like a photogrammetry solution for hand-held 3D scanning, that does not require a laser tracker to monitor the scanner position. The key is to use a hardware&software suite that can "stitch" different photos together while tolerating potentially substantial errors in camera position.


    Capturing 3D point clouds over mulit-meter volumes is going to require pretty major software and memory, though.

  • How large are the models? Because robot accuracy is not going to get you 0.1mm over 1000mm ranges

    The main task that the scanner has to be used for is collecting main contours of car chassis base and other car outer body parts, such as headlights and so on.

  • The main task that the scanner has to be used for is collecting main contours of car chassis base and other car outer body parts, such as headlights and so on.

    Well, my best suggestion is to try some of the open-source options and get a feel for what you need. I strongly suspect that, if you scan an entire car, you're going to end up needing (at minimum) a very powerful computer (top-end gaming or bitcoin miner rig) with a lot of storage and RAM. And be prepared for some very slow image processing.

    https://all3dp.com/1/best-photogrammetry-software/

  • i used Keyence LJ profiler as a stationary sensor to scan products presented by robot. Different heads exist. One that I worked with has laser line about 150mm wide. As i recall resolution was some 2000 samples per line so choosing head with narrower field of view should give more detailed output. Not sure if the depth resolution will work for you. For example scanning coin surface was usually recognizable but fine details were not visible. This maybe because i only did one pass, so going slower, doing multiple passes or using averaging may produce better results. I wrote own code to interface to it and get the data. This sensor can generate quite a flood of data.

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

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