Blue light scanners, data loss question

[NickBtheCDT]

I know the numerous colors of the spectrum have their own characteristics. Is there a laser scanner that is better than others based on the laser type? And typically, how much data loss is there from the scan/design/milling process? I know they say on our Roland mills, we cant have an USB cable longer than 10 feet as it will have too much data loss and the machine will have errors. Whats yall's views and experiences on this?

Nick

 

[CoolHandLuke]

Is there a laser scanner that is better than others based on the laser type

laser scanners are not like industrial cutting lasers, which have laser types (example: Carbon Dioxide laser vs YAG or neodymium laser)

for optical scanning with lasers you will miss data points that reflect laser beams, such as any shiny metal surface which need a coating of opaque powder in order to scan correctly.

you will also miss points that are undercut with respect to the normal direction of the laserbeam, this is why older 3shape laser scanners were phased out because blue light offered scanning via photogrammetry and captured the undercuts without issues.

for CAm, the loss of data occurs when the signal can't get to its destination in time to be processed, so usb data or older roland with the audio jacks have to restrict the length of the cords so that the signal and the processing of it on the other end are in sync. ie you press a command on the vpanel and the machine responds in time rather than after a few seconds. given vpanel and the machines have to communicate back and forth when doing calibration this is even more necessary to restrict the length of the cable so that communication is timely.

 

[NickBtheCDT]

laser scanners are not like industrial cutting lasers, which have laser types (example: Carbon Dioxide laser vs YAG or neodymium laser)

for optical scanning with lasers you will miss data points that reflect laser beams, such as any shiny metal surface which need a coating of opaque powder in order to scan correctly.

you will also miss points that are undercut with respect to the normal direction of the laserbeam, this is why older 3shape laser scanners were phased out because blue light offered scanning via photogrammetry and captured the undercuts without issues.

for CAm, the loss of data occurs when the signal can't get to its destination in time to be processed, so usb data or older roland with the audio jacks have to restrict the length of the cords so that the signal and the processing of it on the other end are in sync. ie you press a command on the vpanel and the machine responds in time rather than after a few seconds. given vpanel and the machines have to communicate back and forth when doing calibration this is even more necessary to restrict the length of the cable so that communication is timely.

Thanks, Luke! BTW, my 5 year old son is named Luke. I always call him Cool Hand Luke when he does something nuts. LOL Hope yall are having a good day.