Quick Answer:
Short Answer
Yes. Wide sensors enable centerline matching that automatically aligns webs regardless of width differences—no manual offset adjustments needed.
Yes. This is a unique capability of Roll-2-Roll Technologies Master/Slave guiding that legacy systems cannot match.
By using wide field-of-view sensors (ODC 480, ODC 768, or ODC 960) that see both edges of each web simultaneously, the controller can calculate the centerline of both the Master and Slave webs. It then guides the Slave web so its center aligns with the Master's center.
Key benefit: When web widths change, the centerline matching adjusts automatically. Operators no longer need to recalculate and enter new offset values—a tremendous time saver that eliminates a major source of alignment errors.
Example: A 400mm Master web and 350mm Slave web will automatically center-align without any manual intervention.