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Zero clearance insert - odd table saw opening

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Project by Oldtool posted 08-05-2013 12:00 AM 2102 views 13 times favorited 12 comments Add to Favorites Watch

I have a very inexpensive table-top table saw, with an insert stamped from thin sheet metal, which it flexes or bows down with any weight on it, not to mention the permanent 5/8” wide opening around the blade, making this saw difficult & somewhat dangerous to use on small, narrow, or short parts.

In order to fill some of my afternoon, I decided to improve this situation by making a zero clearance insert. The first problem is the fact that the insert mounting pads don’t allow for any material thicker than 1/16”, see photo number 3.

I decided to just strengthen this plate, using it for mounting again, but with an epoxied 3/4 oak attachment, as the table offered no other option for mounting of anything thicker. I first needed cut the additional insert material to fit the opening, and then create a rabbit for the existing insert.

After using epoxy to adhere the oak to the thin plate, I needed to find & use extra long screws to secure the plate in place over the blade, which when taken completely down was only 1/8” below the table top, as shown in photo #2. I secured it at this height using two squeeze clamps, photo number 5, and slowly ran the blade up through the oak.

With the new assembly now secured with the original short screws, you can see in photo #1 that this created a good flat and zero clearance opening for delicate work. As far as flex, there is none, and I’m more comfortable with the closed up 5/8” opening.

I hope this helps any others that are suffering with a similar situation on a saw of this type.

Thanks, and I’ll be glad to answer any questions.

-- "I am a firm believer in the people. If given the truth, they can be depended upon to meet any national crisis. The point is to bring them the real facts." - Abraham Lincoln





12 comments so far

View woodworker59's profile

woodworker59

560 posts in 889 days


#1 posted 08-05-2013 02:08 AM

Looks like a working zero clearance insert to me… must be doing something right over there… I agree, that it makes for a much safer saw, and you will notice the difference in chip out on your hardwoods as well… Papa

-- Papa@papaswoodworking.com

View kiefer's profile

kiefer

3186 posts in 1355 days


#2 posted 08-05-2013 02:47 AM

Great heavy duty solution the kind I like !!!
Well done .

-- Kiefer 松

View HopBoy's profile

HopBoy

5 posts in 587 days


#3 posted 08-05-2013 12:34 PM

I have almost the exact same situation with my new/used Sears table saw. I was heading down a different direction, trying to make an insert to cover the whole opening. Tried using plexiglass… but quickly dismissed that… thin enough but much more bendy than the original plate.. not to mention the little shards that like to stick in skin (had to cut a 45 degree angle on the left side)

I really like this idea. The bulk sits down below the table top once the original screws are replaced.

Thanks for sharing!!

-- Ed "I cut it twice, and the dang thing is still too short."

View DonDA's profile

DonDA

117 posts in 1920 days


#4 posted 08-05-2013 01:07 PM

Innovative and very workable. Enjoy.

-- Don, Saginaw Mi

View 03roadking's profile

03roadking

13 posts in 624 days


#5 posted 08-05-2013 01:25 PM

Thanks for the post! I have been in need of this for a while.

View BBF's profile

BBF

141 posts in 527 days


#6 posted 08-05-2013 01:34 PM

Nice fix.

-- I've never been disappointed buying quality but I have been disappointed buying good enough.

View 7Footer's profile

7Footer

1217 posts in 637 days


#7 posted 08-05-2013 05:27 PM

Favorited! I have a very similar insert on my Hitachi, and after like 5 failed attempts at a ZCI I gave up, but never thought of adhering the wood to the original insert, might be time to try again! Well done sir!

-- Before you criticize someone, you should walk a mile in their shoes. That way, when you criticize them, you're a mile away and you have their shoes." -

View exit116's profile

exit116

114 posts in 480 days


#8 posted 08-05-2013 06:46 PM

thank you for sharing

-- Money: if you do not have fun earning it, have fun spending it, I do not enjoy spending it so I have fun earning it.

View Oldtool's profile

Oldtool

1846 posts in 879 days


#9 posted 08-05-2013 07:33 PM

Hey guys, thanks for the comments, much appreciated.

I need to make sure those who might try this should know that this will be a dedicated 90 deg. insert. If I were to tilt the blade, this insert must come out, or the blade slot will be recut & no longer a zero clearance device.

As I use this saw only for ripping and crosscuts, I didn’t mind dedicating the factory insert to this application. If I ever have to tilt the blade, I’ll do so with the insert removed, assuming I’ll be mitering long pieces.

FYI

Thanks for looking.

-- "I am a firm believer in the people. If given the truth, they can be depended upon to meet any national crisis. The point is to bring them the real facts." - Abraham Lincoln

View Mauricio's profile

Mauricio

6842 posts in 1840 days


#10 posted 08-05-2013 08:51 PM

Brilliant idea OT! I need to do this to my saw.

-- Mauricio - Woodstock, GA - "Confusion is the Womb of Learning, with utter conviction being it's Tomb" Prof. T.O. Nitsch

View Boatman53's profile

Boatman53

839 posts in 885 days


#11 posted 08-05-2013 10:51 PM

Just remember that with that thick of a plate not to tip the blade for a miter or you will bend a blade before you realize it. A good solution none the less.
Jim

-- Jim, Long Island, NY Ancorayachtservice.com home of the chain leg vise

View Kevin's profile

Kevin

539 posts in 987 days


#12 posted 08-12-2013 06:38 PM

Good solution, I had a table saw with that problem that now belongs to a friend, I’ll pass on your solution to him, he’ll appreciate it.

-- Measure twice, cut once, then rout a whole bunch

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