Does anyone have a CNC file for the JessEm 02120 Mast-R-Lift II they are willing to share?
Also can a 1/4 upcut endmill cut through Formica?
Yes a 1/4" up cut bit will cut through Formica. The issue with up cut bits is it tends to leave the top surface fuzzy if the good side of the Formica is up.
Are you looking to reproduce the entire machine, or a specific part of it? (Insert rings, larger or replacement plate)
Another issue with upcut bits is they tend to lift the material. Unless it is secured very well, it will want to lift, resulting in chipping. I think a downcut bit would give much better results.
Wouldn’t an upcut bit in an upside down router pull material down?
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It indeed would. 
I was thinking he was going to make a formica part on the CNC for the router table??
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I am making a custom router table as I just picked up the JessEM router lift. I happened to ask AI if it had the dimensions and radius of the corners for the top plate and to my amazement it did. (9.25x11.75x0.375 with 3/4" radius corners)
My plan was to laminate some MDF or Baltic birch with formica then CNC the router lift opening into the table. I have yet to CNC formica and I know it is very dense and likely to chip easily. I have up, down and compression bits.
If it’s laminated well to the MDF or Ply, it will be less likely to chip.
Back in my cabinet making days, we always used a straight flute to trim formica.
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I’m leaning towards a down cut or maybe a compression. The CAD creation should be easy now that I have the dimensions.
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I used melamine for my router table top a million years ago, long before CNC was in my life so I made a template for the router to cut and it was good.
The table is still in use today and the surface of the melamine is slick enough for material to slide nicely.
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My experience is to use ply over MDF, especially if your in a fairly humid environment.
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About a year ago, I built my own router table using a JessEm Mast‑R‑Lift and a JessEm router. Against all the rules, the top layer is a 1 3/4" solid oak top—and it hasn’t moved a single thousandth of an inch. I also reused an old Bosch router table as the router box.
It’s basically a Frankenstein setup, but it works great. Here is the cutout file for the top.
Hopefully this could help.
Table Router Mastercraft.c2d (76 KB)
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I think the plates are the same as theJessem Rout-R-Lift 2. I posted this a while back. What did you cut on your Shapeoko/ Nomad today? - #4567 by DockLee
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