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Repeat dados, wider than dado stack, is this possible?

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Forum topic by onesojourner posted 03-26-2015 03:14 AM 873 views 0 times favorited 10 replies Add to Favorites Watch
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onesojourner

73 posts in 1180 days


03-26-2015 03:14 AM

Hopefully this picture expains what I am trying to do. Each bar has 8 evenly spaced cuts. I have 20 of them to do. My dado will not cut the full width of the cut in one pass. I thought I had this figured out but when I went to do it I failed. I scratched my head for about 2 hours and made lots of test cuts but I could not come up with anything. I also have a router table I can utilize but only one miter guage.

-- http://icftfsystemshome.blogspot.com/


10 replies so far

View mark4345's profile

mark4345

66 posts in 1887 days


#1 posted 03-26-2015 03:42 AM

Make a box joint jig to index the cuts

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waho6o9

7174 posts in 2041 days


#2 posted 03-26-2015 03:53 AM

https://www.youtube.com/watch?v=NutwD7B6tmE

William Ng ^

Good idea Mark4345

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TheFridge

5765 posts in 950 days


#3 posted 03-26-2015 03:55 AM

Yeah buddy

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View realcowtown_eric's profile

realcowtown_eric

565 posts in 1401 days


#4 posted 03-26-2015 04:39 AM

Get some inexpensive plastic shimns and widen it so you can do it at one go,

Most dado heads have negative rake, so they tend to lift the work. with all the ones I use, two passess are required for precise depth.

Eric

-- Real_cowtown_eric

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onesojourner

73 posts in 1180 days


#5 posted 03-26-2015 12:38 PM



Make a box joint jig to index the cuts

- mark4345

That was my thought to, and that is how I cut this scrap. The space between the end and the first cut is perfect, but the next cut will be wrong until the rest of the waste in the first cut is removed.

-- http://icftfsystemshome.blogspot.com/

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onesojourner

73 posts in 1180 days


#6 posted 03-26-2015 12:48 PM

I think maybe instead of having the spacer 15/32nds from the closest edge of the blade, maybe I should have the spacer in my jig set at 45/32nds from the outside of the blade. that would get my first cut in the right spot then I could just put the opposite face up against the fence and it should come out perfect… right?

-- http://icftfsystemshome.blogspot.com/

View Kazooman's profile

Kazooman

626 posts in 1416 days


#7 posted 03-26-2015 12:58 PM

Yep, box joint jig. Set it up to cut all of the left hand sides first so they will have the proper spacing. Then reset it to cut out the remaining portion of the slots in a series of second passes.

View distrbd's profile

distrbd

2227 posts in 1911 days


#8 posted 03-26-2015 01:02 PM


Get some inexpensive plastic shimns and widen it so you can do it at one go,

Most dado heads have negative rake, so they tend to lift the work. with all the ones I use, two passess are required for precise depth.

Eric

- realcowtown_eric


Exactly.you need a couple of spacers to do accurate cuts.

-- Ken from Ontario, Canada

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MrRon

3926 posts in 2708 days


#9 posted 03-26-2015 06:57 PM

This is basically a large finger joint jig. Make your first 15/32 cut. Then index every 1-13/32 and repeat cut until all cuts have been made. Then go back to the start. Remove the last bit of the first cut and index the rest the same 1-13/32 until all have been done.

View onesojourner's profile

onesojourner

73 posts in 1180 days


#10 posted 03-26-2015 07:27 PM



This is basically a large finger joint jig. Make your first 15/32 cut. Then index every 1-13/32 and repeat cut until all cuts have been made. Then go back to the start. Remove the last bit of the first cut and index the rest the same 1-13/32 until all have been done.

- MrRon

Awesome. That is what I was thinking. Thanks.

-- http://icftfsystemshome.blogspot.com/

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