Ridgid r4512 zero clearance insert height adjustment

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Forum topic by DW833 posted 03-27-2014 04:36 AM 1167 views 0 times favorited 5 replies Add to Favorites Watch
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181 posts in 1302 days

03-27-2014 04:36 AM

Topic tags/keywords: r4512 zci table saw zero clearance insert leecraft

I tried to make a ZCI for my r4512 table saw. But could not get the fit just right.
So I purchased a leecraft zero clearance insert. This insert is fine, it does what is should for zero clearance.

However, it has the same problem as the steel insert that comes with saw.
The top of the insert sits a little lower than the table top. About a 32nd.
Tried to use washers to adjust height, but still too low. If insert is raised to high with washers,
the screws used to secure it are above the table top and cause scratches on wood. Used a
counter sink to lower the screws, but still can’t get the ZCI flush with top.

Not a problem most of the time.
But when cutting slots, rabbets, tenons, etc. the height of the blade/ZCI/table can still be off.
Also, for shorter pieces they can rock as they move past the table and are on the insert only.

This LJer made a ZCI for this saw. It does appear to be flush with the table.
However, it doesn’t look like he screwed it down. It is just sitting on the table.

Has anyone had experience with set this up. What can I do to make the ZCI flush with the table top?

5 replies so far

View crank49's profile


3979 posts in 2391 days

#1 posted 03-27-2014 05:32 AM

My insert does just sit in the depression in the saw table. It is only held down by a small spring clip in the rear of the insert. That’s the way they are made. The only screws on mine are jack screws used to raise the insert level with the table.

-- Michael: Hillary has a long list of accomplishments, though most DAs would refer to them as felonies.

View jeff's profile


974 posts in 2884 days

#2 posted 03-27-2014 07:00 AM

my leecraft ZCI for my R4512 fits perfectly,also have the dado ZCI…easy to adjust for level and the back screw works like a charm to snug up lateral movement…you are placing the insert on top of the screws right? because you posted you used the screws to secure the zci to the table top—-the zci is made to sit on top of the adjusting screws…hope this helps…

-- Jeff,Tucson,Az.

View gfadvm's profile


14929 posts in 2110 days

#3 posted 03-28-2014 12:51 AM

Put some blobs of silicone calk under the edges of your ZCI, press it level with your table, and allow the silicone to cure. Quick and easy!

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

View DW833's profile


181 posts in 1302 days

#4 posted 03-28-2014 01:52 AM

Jeff and Michael,

Thanks for your help. Man do I feel stupid. I was using the screws on top of the insert. I’ll have to read the manual next time. The craftsman table saw I had before this had the screws on top of the insert. So I did the same when I bought this saw.

I checked the lee craft instructions and they do mention to place the insert on top of the screws. Checked the ridgid manual. It doesn’t mention the screws at all. It does say to slip the tab underneath table top and push down to secure. I never used the insert that came with the saw. I ordered the lee craft inserts at the same time and never looked at the one page of instructions.

View jeff's profile


974 posts in 2884 days

#5 posted 03-28-2014 02:15 AM

I’m glad you got it figured out…

-- Jeff,Tucson,Az.

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