irondesk40
Member
Here i go again. Another question. Has anyone had success with controlling the position of fabric being fed by feed rollers with the use of a light curtain. In the past what i did was i had two break beam type photocells mounted just off the edge of the fabric on both sides and if either of those detected the fabric then i turned on a motor to move the feed rollers in the direction it needed to go in order to keep the fabric centered. We now looking at having to use a light curtain that will be large enough to keep a piece of fabric 40 inches wide centered as it is being fed through a machine. I would assume the light curtain would give a analog signal out. New to me. Anyone ever done this?