After assembling the lower half of the rocking chair, there is some clean-up work that needs to be done once the glue has cured.
Seat Tenon Before
The seat tenons and wedges stick out from above the surface of the seat. Ash is very hard and this is end grain that needs to be surfaced. These tenons come up through a curved area of the seat and eliminate the option of using a saw to flush the tenons.
These are the attachments that work on my angle grinder. I’m not sure that the shearing cut of the Arbortech would work well on end grain. I need to experiment with this on some scrap and not the real thing. I defaulted to the carbide disk pictured in the upper right of the photo. I’ve used this disk successfully on 40 seat tenons in the past. Newer carbide disks have cut-outs to give a better view of the progress of the grind. That would be a handy feature when trying to avoid damaging the seat.
To clean up the grinding marks, I use a 50-grit disk on my random orbit sander. I work my way up through the grits to keep removing sanding marks.
Seat Tenons After 80-Grit Sanding
The seat cleans up real nice when the tenons are ground and sanded flush.
Close-up of the front tenon. This the one where the wedge tilted to the side when driving it in as seen in my assembly video . There is a 1/16” gap on the right side of the wedge which the glue filled.
Close-up of the rear tenon.
Next blog will cover the shaping of the rocker/leg joint…
-- Mark, Minnesota