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Making zero-clearance insert for Delta 36-725

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Forum topic by Zvonko posted 02-19-2019 03:08 PM 404 views 0 times favorited 7 replies Add to Favorites Watch
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Zvonko

48 posts in 143 days


02-19-2019 03:08 PM

Hello,

This is probably a really basic question for you experts, but I’m still fairly new to all this.

I’ve been using my new Delta table saw and I LOVE it. I’ve quickly realized why people use zero-clearance inserts. I’ve read and watched videos on how to make zero clearance inserts and it seems pretty straightforward except that everything I’ve seen doesn’t use a riving knife.

Like I said I’m fairly new to this, but everything I’ve read about table saws and safety indicate that it’s a very good idea to keep the riving knife on. SO, how do I make one that also accounts for the riving knife?

Has anyone done this or have suggestions? I’m sure I could experiment and figure something out, but I’d rather do it right.

Thanks

-- You can't always control WHAT happens, but you can always control HOW you respond.


7 replies so far

View WhyMe's profile

WhyMe

1139 posts in 1889 days


#1 posted 02-19-2019 03:14 PM

I made a zero clearance insert for my 36-725 and just made the slot long enough for the riving knife to come up through.

Here’s a thread… http://www.lumberjocks.com/projects/99601

View SuperCubber's profile

SuperCubber

1069 posts in 2613 days


#2 posted 02-20-2019 02:25 AM

I made one also, with a long enough slot. I did, however, cut off the nub on the top/back of the riving knife, so that it would fit better.

-- Joe | Spartanburg, SC | "To give anything less than your best is to sacrafice the gift." - Steve Prefontaine

View BFamous's profile

BFamous

312 posts in 449 days


#3 posted 02-20-2019 03:16 AM

Make the insert, put it in place on your TS. Then slowly raise the blade to cut the slot in the insert…

Once you have the slot cut for the blade cut, use a jigsaw and straight edge to extend the slot far enough back to allow for the riving knife.

-- Brian Famous :: Charlotte, NC :: http://www.FamousArtisan.com

View EricLew's profile

EricLew

237 posts in 1694 days


#4 posted 02-20-2019 04:29 AM

I also have that saw and make my own.

ZCI

They aren’t hard to make, the challenge with this saw is the narrow, shallow lip needed around the outside bottom edge.

but….You can do it, and when you do, make a bunch of them. :-)

-- I love the smell of coffee in the morning, and sawdust in the afternoon

View Zvonko's profile

Zvonko

48 posts in 143 days


#5 posted 02-20-2019 01:32 PM

Thanks for the replies everyone. Great ideas there.

Just for reference if anyone finds this post in future…While following your links I saw this one of the replies. I like Izzy’s idea of using PVC on the top. BUT, all the suggestions are really good. Just a matter of preference (and skill probably) on which one you choose.

BTW – I’m new to woodworking and this site. I’m finding it extremely helpful as I try to learn. Thanks to all that contribute to it.

-- You can't always control WHAT happens, but you can always control HOW you respond.

View Davevand's profile

Davevand

99 posts in 1164 days


#6 posted 02-20-2019 03:15 PM

The slot for the riving does not need to be perfectly tight to the riving knife, make the space for the riving knife a bit over sized. The only part of the ZCI that need to be a tight tolerance is where the front of the blade goes thru the insert.

View SuperCubber's profile

SuperCubber

1069 posts in 2613 days


#7 posted 02-20-2019 03:38 PM



The slot for the riving does not need to be perfectly tight to the riving knife, make the space for the riving knife a bit over sized. The only part of the ZCI that need to be a tight tolerance is where the front of the blade goes thru the insert.

- Davevand

I guess it depends on your goal. I like a ZCI that is tight against the entire blade and riving knife, so thin strips can’t fall into the slot.

-- Joe | Spartanburg, SC | "To give anything less than your best is to sacrafice the gift." - Steve Prefontaine

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