Formica routing

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Forum topic by willhime posted 01-09-2022 02:01 AM 714 views 0 times favorited 6 replies Add to Favorites Watch
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214 posts in 3000 days

01-09-2022 02:01 AM

Topic tags/keywords: jig question resource tip trick router finishing veneering

I’m making a grid surface that will accept T-bolts. The dimensions are 29×29”. I’m going to have t channels every 5 inches. Horizontally and vertically. I haven’t worked a lot with laminate or formica so I’m wondering- is it better to route out my grid first with a 1/4” endmill for the majority of the channel then go back through with my t-slot bit to finish the slots…
Then adhere the formica to the surface and flush route the channels with my formica flush bit, or

Adhere the formica to the surface then put the surface into my cnc and route everything through the already adhered formica ?

-- Burn your fire for no witness

6 replies so far

View LeeRoyMan's profile


2731 posts in 1188 days

#1 posted 01-09-2022 02:37 AM

I would adhere the laminate first.

View woodbutcherbynight's profile


10889 posts in 3870 days

#2 posted 01-09-2022 02:39 AM

I would adhere the laminate first.

- LeeRoyMan


-- Live to tell the stories, they sound better that way.

View DS's profile


4110 posts in 3882 days

#3 posted 01-09-2022 02:51 AM

+1 laminate first.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS

View Lazyman's profile (online now)


9619 posts in 2849 days

#4 posted 01-10-2022 03:14 PM

+1 on Laminate first. Then hog out a groove with a straight bit first, then use the T-slot bit.

If you are going to use your CNC, make sure that your tool paths enter and exit from the ends with the T-slot bit. Not all CNC software understands undercut bits so you may have to force it to do it. Might be a good idea to test the paths with an air cut first. (EDIT to add:) You might do a practice slot on some scrap first too.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

View HokieKen's profile


21735 posts in 2600 days

#5 posted 01-10-2022 04:56 PM

+1 Formica first then route. I’ve done it both ways and the results were the same and doing the formica first is less work.

-- I collect hobbies. There is no sense in limiting yourself (Don W) - - - - - - - - Kenny in SW VA

View bbc557ci's profile


698 posts in 3536 days

#6 posted 01-10-2022 06:54 PM

As others have said, Formica (or other plastic laminate brand) first. Easier & quicker in the long run.

-- Bill, central where near the "big apple"

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