# Record, scan and find a suitable length

Record exact measurements, respect uncertainty and allowances, then look up piece and bin labels locally.

Source: https://help.smartfact.ai/offcutbench/guides/record-and-find

Audience: Operator

## Record, scan and find a suitable length

1. **Import a prepared rack**

   Import a prepared rack.

   This synthetic backup enters the ordinary strict restore path. It has aluminium and steel pieces, including damaged and unchecked ones.

2. **Open the recording step**

   Open the recording step.

   Each record represents one physical piece. Measure it and check its condition before attaching a label.

3. **Try an invalid grouped number**

   Try an invalid grouped number.

   Lengths are exact values. A comma is refused rather than silently interpreted.

4. **Check the length refusal**

   Check the length refusal.

   The refused record leaves the rack unchanged.

5. **Enter an exact measured length**

   Enter an exact measured length.

   1250.125 mm is retained exactly, with three decimal places.

6. **Try uncertainty below the rack minimum**

   Try uncertainty below the rack minimum.

   This rack requires at least 2 mm. A smaller value is not accepted.

7. **Read the measuring-practice refusal**

   Read the measuring-practice refusal.

   A reason cannot override a positive minimum uncertainty.

8. **Use the rack measuring practice**

   Use the rack measuring practice.

   The guaranteed length will be 1250.125 minus 2, which is 1248.125 mm.

9. **Record the measured offcut**

   Record the measured offcut.

   The app creates its own new identifier and appends history. Downloading a label does not prove it was printed or attached.

10. **Find a suitable length**

   Find a suitable length.

   A search changes no stock and reserves nothing.

11. **Ask for two blanks**

   Ask for two blanks.

   Each blank needs its own blade-width allowance.

12. **Set the finished length**

   Set the finished length.

   Use 600 mm for each blank.

13. **Read the cut allowances**

   Read the cut allowances.

   Required length is N × (finished + extra) + N × blade width + trim + buffer. This rack uses 0, 3, 10 and 0 mm respectively.

14. **Run the search**

   Run the search.

   Two 600 mm blanks need 1216 mm with these reviewed defaults. A 1248 mm guaranteed piece leaves 32 mm spare. Damaged and unchecked pieces are excluded.

15. **Scan a piece label**

   Scan a piece label.

   A keyboard scanner or typed full OBP1 code looks up only this loaded rack. This is a synthetic value, not a live scanner check.

16. **Scan a bin card**

   Scan a bin card.

   OBL1 selects a bin and filters the local rack list. It does not verify physical put-away.

17. **Try an unknown label**

   Try an unknown label.

   A label from another rack has no cloud lookup. This message does not establish whether the physical piece exists.

18. **Ask for a length that is not listed**

   Ask for a length that is not listed.

   A no-match result describes this rack list, not fresh physical stock.

19. **Read the no-match result**

   Read the no-match result.

   Check the list and physical rack before deciding to cut new stock.

[Watch or practise this chapter](https://help.smartfact.ai/offcutbench/demo?guide=record-and-find&chapter=record-and-find)