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What Tolerance Using JessEm's Router Table Template?

by jivers
posted 01-16-2018 05:06 AM


5 replies so far

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jivers

14 posts in 1347 days


#1 posted 01-21-2018 05:11 PM

bump

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davezedlee

38 posts in 1363 days


#2 posted 01-21-2018 06:16 PM

i just clamped four pieces of MDF to the actual outside edges of my plate and used a template bit, but made sure to leave enough of a ledge so the lift fits, but there’s lots of support… the corners have gaps, but everything fit nicely

the second picture shows the “top” of the plate on the bottom edge; otherwise, my measurements would appear upside down

using their template means the “pinchers” wouldn’t reach, which was pointed out on a youtube review i saw

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jivers

14 posts in 1347 days


#3 posted 01-21-2018 06:22 PM

My table top is formed and laminated at this point, so the method you describe isn’t applicable.

However, my question is about the 1/32” tolerance and if others think it normal given the template and plate are form the same company. Again, I expected something tighter.

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bbasiaga

1243 posts in 2534 days


#4 posted 01-21-2018 08:11 PM

I bought the Incra verrsion of the mast-r-lift, at Rockler, which has its own plate size. (i did not know that at the time, but probably would have bought it anyway since I could only afford it due to the 20%off coupon). Anyway, I bought the rockler pre made MDF template and did like Dave with a pattern bit. Fit pretty snug.

If it is too loose for you, you can coat the edges and a portion of the top and bottom of the plate around the perimeter with a good coat of wax, and then use some 2pt epoxy to ‘bed’ the opening to your plate.

I don’t think the 1/32” 0f an inch is too big a deal. Strange that they do not match more tightly than that, yes. A lot of those plates are made assuming they will be bolted through the table top, so it won’t move anyway. At that point, the clearance is nice because it is easier to get in and out. It is a minor pain to get mine in and out, but I don’t do it often.

Brian

-- Part of engineering is to know when to put your calculator down and pick up your tools.

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jivers

14 posts in 1347 days


#5 posted 01-21-2018 08:56 PM

I misunderstood Dave’s response on first read but now get it. I think I’ll give that method a go, as it seems to be a bulletproof way to achieve a tight fit. Another advantage is I can use a pattern bit with a greater diameter than the bit / guide combo required for the template. I’ll then end up with a wider shelf, eliminating the issue with the plate’s leveling nuts possibly not having enough material beneath them.

Thanks for the feedback on the tolerance I got using the template.

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