Router Table Insert "zero-clearance" disc size?

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Forum topic by harriw posted 09-11-2012 11:28 PM 1152 views 0 times favorited 0 replies Add to Favorites Watch
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09-11-2012 11:28 PM

Hi folks!

I’m making good progress on my home-made router table (I think I might make a post or blog about it later on tonight after mowing), but have a quick question.

I managed to sort out all the different mounting insert plate sizes, but is there a standard, or at least common size for the round “zero clearance” inserts that drop into the insert plates? I found some 3/16” clear acrylic I’d like to make a few from (rescued from the dumpster at work), but am wondering how big they typically are? I was thinking something in the neighborhood of 4” for the disc so that if I remove it altogether, the lip will more-or-less be sized correctly for a big-ol’ 3.5” panel raising bit (don’t have any nearly that big yet, but I might as well plan ahead). I don’t want to make it too big though for fear of weakening my mounting plate.

Sorry if this is covered, but all I could find are discussions on the mounting plate insert sizes (which was also very helpful, by the way).

Thanks very much!


-- Bill - Western NY

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