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-   -   Bench Top Question - Bo Jones (http://tracksawforum.com/showthread.php?t=15)

Archiver 08-21-2009 07:16 AM

Bench Top Question - Bo Jones
 
I may be very anal, obsessing, mountains out of mole hills or all of those.

The closest "3/4" ply I could find is 3/64 lower on the bench top than the SME. I'm concerned that the difference might let thin material bow down in the 17 " between SME's as the saw passes over, thereby moving the EAC.

If this happens, the no chip action would be negated for that area, or would it for that small difference?

If the 3/64 is a problem, it seems that I could :
1. Rout out the fixed base the 3/6 for the SME to fit in making a smooth surface.
2. Adjust the routing on the edges of the sliding panels so they ride even in the SME.
3. Accept that it will not be a problem and have the panels flat on the base and the SME's are slightly higher.

So, what are you all's thoughts? What would you do?

Thanks
By the way, I learned today why women like silent men--they think we are listening.

Archiver 08-21-2009 07:17 AM

Dik Harrison
 
Bo,

I doubt it will be a problem, but you can always do option 2 and rout the edge so the top of the ply is flush with the top of the SME. I was using melamine covered particle board, and it being 3/4, had it above the top of the SME which caused things to snag on the melamine when they were sild across the bench top. I have switched to plywood (23/32 I think) which puts the ply slightly below the SME. Works fine...

Archiver 08-21-2009 07:18 AM

Peter Pedisich
 
Bo,

You could route down the area under the extrusion like you said ir shim up the ply with sheets of posterboard (take a caliper to Staples!)
I would resolve it - you will notice 3/64" (0.046875" / 1.191mm)

Pete

Archiver 08-21-2009 07:18 AM

Burt Waddell
 
Dik is probably correct but I would put a spacer between the two sheets of ply. Like peter suggested, poster board, thin strips of wood, a couple layers of formica, or almost anything that will bring it closer to level.

Burt

Archiver 08-21-2009 07:18 AM

Bo Jones
 
Dik, Peter and Burt, thanks for the suggestions. Routing or using a spacer both make sense. After reading your thoughts and playing around with ideas, although adding shims of some type would be easier, I'm going to rout. Have had the SRK for a year and a new Hitachi Router for several months but never used them. So I'll rout as a learning experience. This forum has to be among the best if not the best on any subject for quick, understandable answers to questions with reasons and experience.

Thanks for sharing.

Archiver 08-21-2009 07:21 AM

Burt Waddell
 
Quote:
Originally Posted by Bo Jones [IMG]file:///C:/DOCUME%7E1/Dik/LOCALS%7E1/Temp/msohtml1/01/clip_image001.gif[/IMG]
Dik, Peter and Burt, thanks for the suggestions. Routing or using a spacer both make sense. After reading your thoughts and playing around with ideas, although adding shims of some type would be easier, I'm going to rout. Have had the SRK for a year and a new Hitachi Router for several months but never used them. So I'll rout as a learning experience. This forum has to be among the best if not the best on any subject for quick, understandable answers to questions with reasons and experience.

Thanks for sharing.

Bo,

That does sound like a good way to make freinds with your new toys!

Have Fun!!!!!!!!

Burt


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