I am a beginner with 3d scanning and i recently scanned a simple flange using a kreon 7-axes arm with blue laser. However the resuting geometry of scan data (as shown in attachment) is not very accurate. I have seen people getting very good results with 3d scanning, while mine is clearly not. Is this due to a problem with my hardware or my software settings?
Kreon laser Scanner
Re: Kreon laser Scanner
When you say "not accurate" do you mean geometrical not accurate or are you referring to the poor quality of the scan (noise, distorted features, rough surfaces)? I don't know that system, but CMM arm based scanners are usually very precise. the Blue laser should give good detail too. To you have the manuals? have you checked your setup and scanning procedure? can you not call tech support?Aal wrote: 25 Apr 2019, 06:11 I am a beginner with 3d scanning and i recently scanned a simple flange using a kreon 7-axes arm with blue laser. However the resuting geometry of scan data (as shown in attachment) is not very accurate. I have seen people getting very good results with 3d scanning, while mine is clearly not. Is this due to a problem with my hardware or my software settings?
2.jpg
µ
Re: Kreon laser Scanner
Prevoiusly When i scanned over the same area multiple times. it usually ended up with different scan points as you can see in the attached picture which is not a regular circle. and yes i am missing the manuals since we lost them. The reason why i posted was that i wanted to know if scanning results are intially supposed to be like this and then refined in modeling or be more accurate.
Tightening the screws at the base of the arm and better clapming of part has helped eliminate this problem now. The accuracy is in microns now.
Tightening the screws at the base of the arm and better clapming of part has helped eliminate this problem now. The accuracy is in microns now.
Re: Kreon laser Scanner
Looking at your scan, it seems like you're dealing with registration issues rather than pure hardware problems. When you scan the same area multiple times and get different point positions, that's typically a tracking or calibration issue with the arm system.
A few things to check: First, make sure your arm is properly calibrated — even small temperature changes in the workspace can affect accuracy. Second, check if you're moving too fast during scanning — the Kreon system needs steady, controlled movement to capture clean data. Also, is the flange properly fixtured? Any movement of the part during scanning will create exactly the kind of scattered points you're seeing.
The good news is that Kreon systems are capable of much better results than what you're showing, so it's almost certainly a setup or technique issue rather than broken hardware. Are you getting any error messages from the software about tracking quality during the scan?
A few things to check: First, make sure your arm is properly calibrated — even small temperature changes in the workspace can affect accuracy. Second, check if you're moving too fast during scanning — the Kreon system needs steady, controlled movement to capture clean data. Also, is the flange properly fixtured? Any movement of the part during scanning will create exactly the kind of scattered points you're seeing.
The good news is that Kreon systems are capable of much better results than what you're showing, so it's almost certainly a setup or technique issue rather than broken hardware. Are you getting any error messages from the software about tracking quality during the scan?