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Hello, I am having a problem with a product I make infrequently, and every few months when it comes around I experience the same frustration. I know there has to be a better way.
This is a no drip edge for a sink. The joint is made with 1/4" proud of the surface and then rounded over with reverse bullnose bit. The problem I have is sanding and finishing that inside edge and the inside corner. What or how are you all handling this?
Need to shape a blank - several and glue paper on them. Lots.
Coving sander does well.
We also take a coving router and cut as much glue off as possible.
Coat the base well with topcoat.
We have Velepec and Amana bits with the no drip profile Standing the top up allows the router base to run on the apron
If I did these on any frequency I would be setting up an inside corner cove jig for a trim router with a small ball nose bit where I could just sweep that inside corner right into the 90 until its clean an be done.
If you have access to the continuous joint edge during fabrication (no clamps in the way), run your acetoned, gloved finger down the wet glue line, much like shaping caulk. This should get you 95% of the way there, then the cove sander is the tool of choice. 3m makes small flap wheels in various grits to polish out that fit into a rotary tool.
A good scratch stock scraper helps too. An old wood working tech, but when honed well the scraper really holds the details.
Thank you all for the recommendations. I make a few of these every 1 or 2 months so I am going to give all of these options a try.
Stewart: When I make these I assemble them upside down with the deck resting on 1/4" material to make the reveal. I have tried previously to chip out the squeeze out and apply a fresh line of adhesive, and wipe smooth with lacquer thinner vs. acetone. I am going to try again with acetone. Thanks for the tip. I'll look into a cove sander as well.
Mark: I am going to seriously look into a set up like this with a trim router. A router was my initial thought, but the cove based router we have needs a tall back splash to ride against vs the very short lips on a no drip sink. If per chance you have a photo of a setup like this I would love to see it.
This may help
We use a custom bit similar to the attached.