7  Scanning

7.1 Preparation

Note

INFO: Logs need to be dry and out of the sun to be able to scan

Before you can produce a part you need to scan it.

7.1.1 Logs

Cracks in a log can make your life really difficult when you use the scan to calculate a scribeline because the cracks will be scanned. While humans ignore the scan and still see the whole log, the scanner is seeing the cracks and will take them as what it is - a surface of the log. The resulting scribeline calculation will make it really difficult to calculate a scribeline. It can be that the calculation will find a better match in the crack than the surface. Since this is technically correct, it is not what we want.

To prevent this there is an easy solution: tape the crack with a painter’s tape. A painter tape

  • is easy to attach in seconds
  • is cheap and does not create much garbage
  • keeps the natural shape of the log - the scan is 1:1 as there would be no crack
  • easy to remove
  • doesn’t leave any marks when you remove it
  • the resulting scribeline calculation will be perfect

Painter Tape

Cracks covered up

7.1.2 Hardware

Make sure the cable is in a position that it won’t be pulled or is in the way of the scanner.

Placement of the cable for scanning.

7.1.3 Software

7.1.3.1 Adjust Settings

  • Check settings and adjust OffsetZ and CenterOffset
  • Mark X = Panel(Log) Length
  • End X = Panel(Log) length + 300

7.1.3.2 Turn scanner on

  • On the handheld select “Inputs and outputs”
  • Select View > Digital outputs
  • Mark do_LaserPower
  • Set value to 1 by clicking on the 1 on the bottom (Select 0 will turn off the scanner)
  • Wait approx 30 seconds to allow the scanner to boot up

7.1.3.3 Create the robot code

Press the button “Create Robot Code” in GabbieCam

7.2 How scanning works

A scan of a log or beam is built out of two halves. First the robot will move the scanner along the log(s) on one side and then switches to the outer side and scans in the opposite direction. This scan will be saved as tempScanData.gsc as a backup in case something goes wrong in the next steps.

Raw scan of multiple logs

Those half scans will be automatically put together so that every log has the correct half and saves the single scans to separate files.

7.3 Procedure for single-scan

Every part has a scan attached. This means every part can be scanned. This also becomes really handy for beams because they are not always 100% straight.

  1. Select the log in the panel that is going to be scanned
  2. Press Record in GabbieCam
  3. PP Main
  4. Start Robot
  5. The Robot will go to start position and stops when the laser is on top. Laser will be turned on for marking the log
  6. Move the log in so that the laser line is approx. 100mm from the log start
  7. Mark the log with a pencil
  8. Hit start again on the robot, the robot will start scanning the log on both sides
  9. Press Stop Recording

The log is now completely scanned and the data is saved.

7.4 Procedure to scan a Panel

A panel has multiple logs that need to be scanned. The scans will be saved under the Scandata Dir folder (settings).

There are two different ways to scan the logs for a panel:

  • Single mode
  • Multiple mode

7.4.1 Single mode

The single mode means you have to scan every single log alone.

The procedure is exactly the same as Procedure for single-scan, except you need to select the log in the panel you are going to scan. This will make sure that the scan is saved in the correct folder.

7.4.2 Multiple mode

In the multiple mode more than one log can be scanned. GabbieCam will scan all the logs and recognize the amount of logs. GabbieCam will choose the right data and will create single files in the background.

Make sure there is a gap between the logs of between 900mm and 1000mm to allow space to cut the ends.

Scanning multiple logs

Select the panel where those scans will be attached. Make sure the panel has a unique name. The scans will be saved in the Scandata-Dir folder/panel name/log_n.

Example: D:/scans/panelA1B1/log_1.gsc

Start the scan. The single scans will be created and saved in the folder. When finished, the scan will show up in the panel.

7.5 Settings

7.5.1 Scanner

For 14” log:

Name Description
Offset Z 240mm
Center Offset 800mm

7.5.2 Hermary settings

Scanner Settings in scanner.
Note

INFO: On startup the scanner Force_Trig needs to be set to ON or the scanner will not turn on.

Scanner Settings.
Caption of the table
Name Description
IP Address IP Address of the Scanner
Port Port where the Scan Data will be received
Scandata Dir Folder where to save the data
MM btw. Scans How many mm are between single scans

Dimensions.

7.6 Limits

Only the left and right sides of a log can be scanned at the moment.