A while back I was watching one of the "how it's made" shows where they were making snow boards by laminating planks. There was a motorized glue well with a roller for applying glue to one side of the plank, which gave me an idea for my high chair arm glue-ups.
Started with some maple for the roller, turned to 1 7/8", pins are 5/8"
Next I cut out the well part and two sides. I used a 3/4" forstner to rill out slots for the roller pins in the sides. Everything was sanded smooth before assembly as I plan to wax the pin slots, well, and sides of the roller really well to make the clean up a little easier.
As shown here, the strips will be rolled across from right to left, my thought is that any excess glue will get pulled under with movement of the roller. Hopefully it will work as planned as there are about 16 strips per arm to apply glue to.