Zero clearance insert for 45 degree tilted blade

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Forum topic by Farrout posted 05-24-2013 03:12 PM 1492 views 0 times favorited 11 replies Add to Favorites Watch
View Farrout's profile


185 posts in 3148 days

05-24-2013 03:12 PM

I recently saw a picture of one, but I can’t figure out how to make one.
Any ideas?

-- If we learn from our mistakes, I should be a genius!

11 replies so far

View verdesardog's profile


160 posts in 2606 days

#1 posted 05-24-2013 03:23 PM

make a blank insert, set it in place with the blade all the way down, turn on the saw, slowly raise the blade while it is running. not rocket science…....

-- .. heyoka ..

View PurpLev's profile


8535 posts in 3643 days

#2 posted 05-24-2013 03:26 PM

make sure you check the blade for 45 before you slot the ZCI – checking it after you cut it could be ‘too-late’ if it isn’t exactly 45

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View Kaleb the Swede's profile

Kaleb the Swede

1831 posts in 1964 days

#3 posted 05-24-2013 03:29 PM

I don’t think the first guy read your question correctly.

I have never tried this but I read that one guy put a blank insert in and started out with a 7 1/4 circular saw blade and then when he had the room to replace it with his 10 inch blade he did to complete the cut. Like I said I don’t know if this will work, but it is what I read someone doing before.

Maybe someone who has done it has a better way

-- Just trying to build something beautiful

View Farrout's profile


185 posts in 3148 days

#4 posted 05-24-2013 03:29 PM

Duh, I forgot the whole blade carriage tilts. Oh well, no stupid questions, right?

-- If we learn from our mistakes, I should be a genius!

View patron's profile


13603 posts in 3335 days

#5 posted 05-24-2013 03:33 PM

make sure to hold the insert down good
with the fence and a small wedge
or a board clamped down on it
where the blade won’t cut it too

the angle of the cut
will want to raise the insert
and it can bind
and maybe kick back

-- david - only thru kindness can this world be whole . If we don't succeed we run the risk of failure. Dan Quayle

View Ripthorn's profile


1458 posts in 2979 days

#6 posted 05-24-2013 03:40 PM

One thing to keep in mind is that the carriage raises at 90 while the blade is at 45. This means your blade will cut the blank insert at the right most (assuming right tilting saw) point and slowly work it’s way left. This means that it will only be zero clearance on the left side, and only for the highest blade height you raise it to. There will still be a gap left from the raised cutting on the right. If you want it truly zero clearance, you have to cut it some other way and you would need a different insert for each blade height.

-- Brian T. - Exact science is not an exact science

View Toolz's profile


1004 posts in 3737 days

#7 posted 05-24-2013 04:06 PM

I just made a single runner sled and made a 45 degree cut. Use it all the time when making boxes.

-- Larry "Work like a Captain but Play like a Pirate!"

View toolie's profile


2121 posts in 2623 days

#8 posted 05-24-2013 06:37 PM

I don’t know if this will work

ZCIs for tilted blades are easy to make and work s well as regular ZCIs. particularly good when raising panels on the TS.

-- there's a solution to every just have to be willing to find it.

View stefang's profile


15881 posts in 3328 days

#9 posted 05-24-2013 07:18 PM

You could just make your insert out of two halves edge glued after making the 45 deg. slot.

-- Mike, an American living in Norway.

View muleskinner's profile


896 posts in 2431 days

#10 posted 05-24-2013 07:23 PM

Ripthorn, I think on most saws (and I know at least on mine) once you tilt your blade, raising it is on a plane defined by the saw blade. Or to use your term, the carriage is raised at the angle you’ve set the blade.

-- Visualize whirled peas

View LoydMoore's profile


105 posts in 1951 days

#11 posted 05-24-2013 08:25 PM

OK. I just went to YouTube and typed in “zero clearance insert”. I counted at least 15 videos before I quit looking.

-- Loyd, San Angelo, TX

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