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Hi all, newbie here with first post. I'm glad to have found thus forum! I have been going through router tables, some I make others I get from CL or inexpensive sources. My question is with my Porter Cable 890, why is it a secret what the measurements are for the mounting screws? I have literally been looking for over two years, when the time comes to remount and drill.......carefully and measured 3 times.

What would you all do? Does anyone have the dimensions? It sure would be great to have a printable paper template to use and take the anxiety out of drilling into the router table base.

Thanks and looking forward to making some new friends here. I appreciate your responses. Tony in the OC
 

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John
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Hello and welcome to the router forum.
Here is a utube video
 
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I don't think I've ever seen a schematic that shows that for any router and I don't know why that is. Most of us, I think, use the black plastic base plate as a template. I bought a set of transfer punches to make sure I center the hole when I'm marking it onto a plate. They aren't terribly expensive and come in handy from time to time. Transfer Punch Set - Lee Valley Tools

With some routers you can attach a guide bushing to the base plate and stick the bushing through a pre drilled hole in the table plate to fit it and that will keep the base plate in position while you mark or drill the holes.
 

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Hey, Cuz; welcome!
Tons of previous threads and comments in the archive re the whole topic of plates and mounting them.
Good luck! :)
(You did check the replacement parts approach to finding the screw info? If you can take the screw into a decent hardware store, you should be able to find the correct nut, which will tell you all you need to know about the screw threading.)
 

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I've always used a centering disk or cone, coupled with screws with the heads cut off and sharpened to a point. Thread the sharpened screws in, install the centering tool and place the insert plate on and give a sharp rap at each screw. Drill where the marks are.
 

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Doug
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Tony,

I use the sub base from the router as my pattern. Here is some data that might help. It is from a 690, but I am 99% sure the holes are the same, just the screws for the 890 are metric and the 690 were imperial.
 

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Theo
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I use a pencil to mark the hole, then whack a nail in the center of that, to mark where to drill. Never had a problem with doing it that way yet.
 
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