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ZCI with removeable insert

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Forum topic by Robert posted 05-05-2021 10:06 PM 425 views 0 times favorited 16 replies Add to Favorites Watch
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Robert

4592 posts in 2599 days


05-05-2021 10:06 PM

I have a Jet saw I want to make or buy some of the old Unisaw type throat plates with replaceable inserts.

SawStop has one, too. Does anyone have the SS throat dimensions?

I tried making my own with dovetailed inserts, but I’d like something better.

I’ve looked at the Betterly but unscrewing inserts & losing screws in the midst of working is not in my wheelhouse.

-- Everything is a prototype thats why its one of a kind!!


16 replies so far

View SuperCubber's profile

SuperCubber

1193 posts in 3403 days


#1 posted 05-06-2021 01:00 AM

Have you looked at Colliflower insert?

http://www.colliflower-zci.com/

-- Joe | Spartanburg, SC

View LittleBlackDuck's profile

LittleBlackDuck

7076 posts in 1939 days


#2 posted 05-06-2021 01:28 AM

Wish you mentioned dovetail inserts a few days ago… and I wish I would have read it!


Have you looked at Colliflower insert?
http://www.colliflower-zci.com/
- SuperCubber

Now that’s sending me back to the drawing board!

-- If your first cut is too short... Take the second cut from the longer end... LBD

View therealSteveN's profile

therealSteveN

8009 posts in 1693 days


#3 posted 05-06-2021 04:02 AM

Betterly Tru Cut. I’ve been using them back when on PM66’s, and now on my General 350. Nice inserts. They allow you to use a saw guard.

https://betterleytools.com/categories/tru-cut.html

-- Think safe, be safe

View LittleBlackDuck's profile

LittleBlackDuck

7076 posts in 1939 days


#4 posted 05-06-2021 04:31 AM


... They allow you to use a saw guard…
- therealSteveN
NO!... I refuse to buy one!... even to spite SWMBO for a new pair of shoes.

-- If your first cut is too short... Take the second cut from the longer end... LBD

View therealSteveN's profile

therealSteveN

8009 posts in 1693 days


#5 posted 05-06-2021 05:33 PM

When do you want us to swap from calling you Duck, to Stumpy? Before or after?

I sincerely hope that doesn’t happen, but your odds of it are much higher than mine if we spent the same amount of time running a TS. I would have to literally pick up my guard, and then put my hand into the blade. You only need a moments distraction, the blade is already in the “cut me” position.

-- Think safe, be safe

View Robert's profile

Robert

4592 posts in 2599 days


#6 posted 05-06-2021 10:51 PM

The Betterley is ok but I’m averse to screwing in inserts. What I’m looking for is the throats size of a sawstop maybe I can adapt to fit my Jet.

WADR, there are no absolutes about guards. The first thing I did 21 years ago was remove the crappy guard from my saw. Keeping you hands away from the blade doesn’t require a guard, proper use of push blocks, obeying the 4” rule are important,

Believe me, there are more ways to get hurt in a table saw, and other ways to cut a finger off. We have to have our guard up ;-). Some of the worst cuts I’ve gotten are from hand tools.

That said, if I were buying a saw today no question it would be a saw stop.

-- Everything is a prototype thats why its one of a kind!!

View LittleBlackDuck's profile

LittleBlackDuck

7076 posts in 1939 days


#7 posted 05-06-2021 11:52 PM


When do you want us to swap from calling you Duck, to Stumpy? Before or after?...
- therealSteveN
Where, when, how? I try not to deliberately show bad practices and will eagerly stand corrected.
I don’t show many of the safety features I depend on as in my pictures and videos as I’m not a multi-tasking non-male, and have to be the camera man.
However, that can lead to complacency.
If you are referring to my “lack of guard”, what came with my saw was more dangerous with than without… but only if I wanted to feed timber through it.

-- If your first cut is too short... Take the second cut from the longer end... LBD

View Jim2020's profile

Jim2020

89 posts in 357 days


#8 posted 05-07-2021 12:11 AM

I agree with Duck. The guard that came with my Craftsman contractor saw made it a more dangerous machine. I built myself a really nice blade cover for my Unisaw, mostly for dust collection, but when I use it, I just can’t see what I’m doing. Don’t use it very much as a result. Safe practices are better than gimmick guards. Just my opinion. Jim

View LittleBlackDuck's profile

LittleBlackDuck

7076 posts in 1939 days


#9 posted 05-07-2021 12:55 AM



The Betterley is ok but I’m averse to screwing in inserts.
- Robert

Thanks R...
Playing devils advocate… Screws in MDF is a no-no (and when it comes to timber, I’m one of those fake MDF guys), however, I have had great success in solids using The Wood Whisperers threaders\... they have a better tolerance than standard taps in wood… I don’t think he sells them anymore but a WEB search will reveal suppliers.
Now I’m not saying go and screw it, but I’m saying, don’t totally ”go screw it”!


... Safe practices are better than gimmick guards…
- Jim2020

How true.

I use a lot of gimmicks to assist in safety…
For sheet goods my Jess_em spring into action (pun intended),

a MJ SPlitter is an integral part of all my ZCI’s (‘cept dados/coves)

not as good as a riving knife, but serves it’s purpose.
Push sticks for the choice of timbers,

and push blocks for in-between,

as my safety guard was off more than on, I made the decision to leave it off entirely and take alternative measures… including a Trend face mask for cutting MDF…

not just cutting grass (modestly)... usually (unless making bloody videos).

-- If your first cut is too short... Take the second cut from the longer end... LBD

View bigJohninvegas's profile

bigJohninvegas

1043 posts in 2581 days


#10 posted 05-08-2021 04:40 AM

I use the lee craft plates. They come in zero, and dado. My Ridgid R4512 came with a thin metal throat plate. so using the leecraft plates caused me to have to readjust the leveling screws. So I opened a zero plate to give it the opening like the factory throat plate. That makes it so I could use it for miters too.

https://www.sliversmill.com/category_156_Jet.html

There are many places to buy these plates. but it seems inventory is hit and miss.
I bought a several direct from Mr. Lee several years ago. this Woodcraft link has a phone number.
https://www.woodcraft.com/blog_entries/leecraft-zero-clearance-insert-product-guide#

-- John

View Robert's profile

Robert

4592 posts in 2599 days


#11 posted 05-08-2021 09:18 AM

I’m looking for slide in inserts.

-- Everything is a prototype thats why its one of a kind!!

View Fred Hargis's profile

Fred Hargis

7024 posts in 3612 days


#12 posted 05-08-2021 01:15 PM

Robert, I’m not sure why you want the SS throat dimensions, but here they are (I measured my Colliflower plate instead of the saw throat) 15 7/8” long x 4 1/2” wide. The radius of the arc appears to be (as best my aging eyes can see) 2 5/32”. I’m sure this won’t fit the Jet if that was the thought.

-- Our village hasn't lost it's idiot, he was elected to congress.

View 987Ron's profile

987Ron

1381 posts in 435 days


#13 posted 05-08-2021 01:17 PM

Sliding ZCIs are not for me, I find the 5 inserts I have serve the purpose, faster, easier and no loose parts. Fewer pieces to keep up with.
My ZCIs are Vertical, 45 degree, less than 45, and dato. Somewhere the one that came with the saw as a pattern if I need to make another.
Like LBD I use the MJ splitter, Grippers, and other push sticks Haven’t used the factory blade guard for 40 years.
The joy of your own shop is getting to do things your way, right or wrong. What works for each is his own.

Just be safe.

-- Ron

View CommonJoe's profile

CommonJoe

17 posts in 41 days


#14 posted 05-08-2021 04:52 PM

The inserts are a good idea im going to find me one. thanks

View Robert's profile

Robert

4592 posts in 2599 days


#15 posted 05-08-2021 08:49 PM



Robert, I m not sure why you want the SS throat dimensions, but here they are (I measured my Colliflower plate instead of the saw throat) 15 7/8” long x 4 1/2” wide. The radius of the arc appears to be (as best my aging eyes can see) 2 5/32”. I m sure this won t fit the Jet if that was the thought.

- Fred Hargis

Yeah, way too big, my thinking was if it was close aluminum can be routed.

I made some using QS oak for the throat plate and a dovetail slot, but you never know one day to the next if it will slide out or need to be hammered out. I have a phenolic plate I could use, but I’m too scared of screwing it up.

There’s a guy somewhere who makes the things out of aluminum.

-- Everything is a prototype thats why its one of a kind!!

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