What is your budget?
You can build a 2K scanner for about USD$1500-$2000 plus the cost of a projector to use for parts, and a Windows based computer with USB3 and an SSD RAID or one of the new fast PCIe SSDs (need at least 700MB/s write speed). If you want to go 4K, then the sensor cost starts getting very high ($3000+)
If that is within the budget, I can lay out how to go about it, but basically you need an LED control board with trigger function and camera control (from memory around $500-$700 or so), A PGR sensor ($500-$750), a hall effect sensor and magnet and some associated components ($25), and a suitable projector, some mounting hardware and a focusing rail/micrometer adjustable stage ($80-$400)
A 2k scanner for around $2000 would be more in my budget. I already have a PC with some USB3 inputs, no SSD yet (have to check on that). Althought I don’t have budget for a 4k system yet, that doesn’t mean I won’t have it later, so if something can be done to adapt the set up later, that wouuld be helpful. So, what can I get and work on without the 2k-4k specs ? I guess the projector(s) might be among those (which one and how do I modify it) ?
Thanks to answer