ALL DETAILS NEEDED
To find out the student number, you need to go HERE, click New, click To, and find the person's name. Their code will be in the addressbook. If you use the code from webmail, you need to add a 1 in front of it (look at the example above).
Your generated card is above. You can then right click and Save As. You can then print it on dense paper, and laminate it with dense laminate. All the barcodes are correct. Just measure your own lunchcard to get the proper size.