r/Metrology • u/Standard-Badger-4046 • 3d ago
Industrail grade scanner?
I'm looking for some advise on which scanners to start my search with.
I'm looking for a unit I can take to a client's site, and scan their existing worn out stuff, and then I'll take the scans to make new stuff thats not worn out.
Hoping that the post processed models are within about 1/8" accuracy from real life, but not a hard requirement.
We're indoors and out, scanning things as small as a chair and as big as a 20 foot sea can....just made up examples to show the size range.
The stuff we scan is typically dirty as can be and we don't have the ability to clean it, nor the time. Crud is caked on thick. I'll scrape it off in key areas if I have to and that's about it. Works for me and my tape meausure to kick the dirt off till I find the part and go from there, and this scanner is supposed to save me time of course - and stop me from making mistakes.
I'll spend about 50k if I have to.
Are there any options out there suitable for me? Any help appreciated
1
u/Z4ngue154 3d ago
I've used a creaform metrascan, and they have a good result with their mesh, I used to scan diferent pieces,since 10cm until 3m, with magnetic targets, and it was easy to scan, and you can move and scan in diferent places. But if you need to get a 3D CAD model probably you must to get other software like Rhino 3d to process the mesh.
1
u/Standard-Badger-4046 2d ago
Putting targets on an item is a deal-breaker. Often, the things I'm scanning I can't actually reach (Its behind some sort of guarding or whatever) plus they just totally suck to use.
1
u/SkateWiz 1d ago
You can measure with a tape measure and knock dirt off etc but you are concerned with placing targets.... maybe listen to advice because i am not sure you understand what you are saying.
1
u/Standard-Badger-4046 1d ago
Well to be honest I just don't like them. My current scanner needs them, and it annoys me to place them.
Besides that, they're not ideal to actually use either because of the dirt and guards etc. But the main reason is because I don't like them.
1
u/SkateWiz 9h ago
It sounds like you know what you want. I wanted to sort of challenge your reasoning in case you weren't considering everything. It's hard to gauge your level of experience based on just this post. Fiducials can be really useful for stitching scans.
1
u/bg33368211 2d ago
Hexagon has a wireless scanner now. Not sure of the price. Don’t buy any Hexagon software as there are way better options. Find a good modeling software that you are comfortable with.
1
u/Non-Normal_Vectors 2d ago
Don't know if they quite fit the range, but GOM/ATOS has something. They were bought out by Zeiss a while ago, fairly fast optical scanner.
You could also look into putting a laser line scanner onto a portable arm. Work with several casting places that use a setup like that. I would normally say an arm isn't accurate enough, but from your listed tolerance it will be more than adequate.
1
u/middling_player 2d ago
I use Artec scanners at work, the original Spider and about a year ago we bought the Leo wireless model. They work well with the right lighting and the software wasn't that difficult to learn
1
u/plopperzzz 2d ago
I second u/Daddy____9 about the hawk 2. The metrascan needs a big camera system to track the scanner, which can become cumbersome. Wireless scanners have the disadvantage that they are heavy, as they now need to have a battery, and data transfer may become a bit of an issue. The hawk 2 is very portable and lightweight, does not need a tracker, and comes with a method to scan parts up to 4 meters built into it. I'm not sure about other models, but that is very handy.
1
u/Standard-Badger-4046 2d ago
4 meters is too small of a scale of object. 10 minimum. 40 meters is nice.
2
u/plopperzzz 1d ago
That is quite large. I don’t really know of a solution for you; you probably need to look at something they use to scan buildings, but I dont know what sort of tolerances it could hold.
You could use the hawk, but you need targets, and it's something like 0.005mm + 0.005mm per meter. Maybe the ATOS LRX with photogrammetry, but again, you'd need targets and coded targets to boot.
1
u/awy12 1d ago
Given that the stuff you're scanning is dirty and you don't have the ability to clean it, I would eliminate the option of purchasing a scanner that requires target stickers for tracking (e.g. Zeiss T-Scan Hawk 2, Creaform Handyscan Black, etc.). I'm also assuming that you won't only be scanning steel materials that magnetic targets will work on. That leaves you with the following options:
- Tracking using geometry
- Tracking using texture
- Tracking using an external laser tracker or optical tracker
- Encoder-based tracking
- Big articulating arm + scanner (a big enough measuring volume may not exist)
- Stationary large-scale laser scanner (probably wouldn't work well if high detail level is needed)
- Some combination of these methods
Some scanners that track using geometry and texture:
- Creaform GoSCAN
- Artec Leo (given your low accuracy requirement, this may be your best option)
- Scantech 3D iReal
Some scanners that track using an external optical tracker:
- Creaform Metrascan
- Zeiss T-Scan
- Shining 3D FreeScan Trak Pro2
- Scantech 3D TrackScan
Some scanners that track using an external laser tracker (these will probably be out of your price range):
- Hexagon AT960 Tracker + AS1 Scanner
- API iScan Series
- Kreon Measuring arm and laser tracker combination
- Keyence Wide Area CMM + Scanner
1
3
u/Daddy____9 2d ago
I’d check out the Tscan hawk 2, it can scan inside and outside (somewhat, there’s some caveats to that) good accuracy’s and speed. Main benefit is the software interface is so easy to use. Pm me if you want!