1.5 Post-Scan Review and Data Transfer

Review in LixelGO

After the scan saves (LED solid green), open LixelGO and navigate to the project list. The completed scan appears with its project name, duration, file size, and timestamp. Tap the project to open the review view.

The review view shows the point cloud preview generated during scanning. Use this to assess coverage before leaving the site. Look for gaps, areas where the point cloud is sparse or missing, and any zones that appear poorly registered. It is far faster to re-scan a missed area while the device is still charged and you are still on site than to discover the gap during processing the next day.

• Rotate the preview with a single finger to check coverage from multiple angles
• Pinch to zoom in on areas that appear sparse
• Look for any large voids in areas you walked through, these indicate the scanner lost tracking briefly in that zone
• If a significant area is missing, note the location and plan a re-scan pass before packing up

Expected File Sizes

Use the project duration and file size shown in LixelGO to confirm the scan saved completely. A scan that terminated early due to a power cut or forced shutdown will show a shorter duration than expected.

A file size significantly below the lower bound for the given duration suggests incomplete data. Do not delete the scan from the device until processing confirms the data is usable.

USB Data Transfer

Transfer data via USB. Do not rely on WiFi transfer for raw scan data, file sizes are too large and transfer reliability is insufficient for production use.

File Verification

After transfer, confirm the copied files are complete and uncorrupted before deleting the source data from the scanner. A corrupted transfer is indistinguishable from a successful one by file size alone, the file sizes match but the data is invalid.

For production projects, XGRIDS recommends using TeraCopy or a similar hash verification tool during the transfer. TeraCopy compares the hash values of source and destination files to confirm the contents are identical. This is the only reliable method to confirm a transfer is complete and uncorrupted.

• Verify the project folder structure contains both a project_data subfolder and any relevant external data
• Confirm the total folder size on the destination drive matches the size reported in LixelGO
• Do not delete scan data from the device until at least one successful processing run confirms the data is usable
• Keep raw scan data archived on a separate drive until the final processed deliverable is accepted by the client

What to Practice Next

After completing the first scan successfully, run two or three additional practice scans before any project work. Each practice scan should target a specific skill.

• Practice scan 2: Focus on the initialization procedure, different positions in the same space, observing how the starting position quality affects early point cloud build-up
• Practice scan 3: Focus on loop closure, deliberately plan a multi-loop route and return to the initialization point, then compare the preview against a scan with no deliberate loops
• Practice scan 4: Process the data in LixelStudio, import a completed scan, run the SLAM optimization, and export a LAS file. Understanding the processing workflow before a project prevents first-time processing mistakes on billable data