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Edge cuts aren't square

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Forum topic by roughcuts posted 02-08-2017 12:54 AM 653 views 0 times favorited 12 replies Add to Favorites Watch
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roughcuts

18 posts in 380 days


02-08-2017 12:54 AM

Topic tags/keywords: jig question cherry joining

Hey guys. I am using 2” – 4” lumber for my dining tables. I have a Makita 16-5/16” Circular Saw. I built a jig using a straight edge on top of a piece of MDF. I square the edge off, and them put the two pieces i will be gluing together on the jig. I run the saw down the cut. The visible side of the joint meshes up perfect. However, one the bottom, there is a noticeable gap. Any ideas to get the joint seamless on top and bottom? Thanks


12 replies so far

View woodbutcherbynight's profile

woodbutcherbynight

3650 posts in 2248 days


#1 posted 02-08-2017 02:24 AM

Check your blade for being square to the base vertically. Sounds like the blade is slightly out at the bottom of your cuts.

-- Live to tell the stories, they sound better that way.

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roughcuts

18 posts in 380 days


#2 posted 02-08-2017 03:14 AM

I checked it with a square and it looked good. I confirmed it with a digital angle gauge and it was good. Im wondering if the board that wasn’t under the jig wasn’t sitting as flat as adjacent board?

View TheFridge's profile

TheFridge

8333 posts in 1325 days


#3 posted 02-08-2017 03:31 AM

Or your saw has a bunch of runout.

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

View gmc's profile

gmc

49 posts in 1996 days


#4 posted 02-08-2017 05:34 PM

my circular saw was off 5 degrees vertically that i could not correct. It must have gotten dropped and i either forgot or my son used it and didn’t tell me. This is the exact problem i found was boards wouldn’t be square to each other. Try a different saw even if you have to borrow one would be the quickest way to check. Good luck

-- Gary, Central Illinois

View LittleShaver's profile

LittleShaver

208 posts in 459 days


#5 posted 02-08-2017 07:34 PM

Did you try flipping one of the boards?

-- Sawdust Maker

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roughcuts

18 posts in 380 days


#6 posted 02-08-2017 08:00 PM

I will give it a try and see if that works. The one thing i know for sure is that i have to use the short side of the saw base on the jig. The boards I’m using are 6” or less wide and the edge from the base plate to the blade is about 5.5”. when i clamp the jig to the board, it wants to roll. I will take pictures to give you a better idea of my setup. Hopefully you guys have some ideas as to how I can improve it.

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roughcuts

18 posts in 380 days


#7 posted 02-09-2017 04:43 AM

I ended up building a carriage for the 16” Makita. There were too many variables using the previous method. Tested it and cut dead square. It wasn’t exactly level/cutting square, so i had to bevel the saw to compensate, checked it with my digital angle. Thanks for the input fellas

View woodbutcherbynight's profile

woodbutcherbynight

3650 posts in 2248 days


#8 posted 02-09-2017 05:26 AM

Practical solution, and it works. Nice.

-- Live to tell the stories, they sound better that way.

View DirtyMike's profile

DirtyMike

637 posts in 741 days


#9 posted 02-09-2017 05:58 AM

No bevel on the saw horse legs?

View bigblockyeti's profile

bigblockyeti

4698 posts in 1560 days


#10 posted 02-09-2017 05:59 AM

Are you getting a glue line rip with the setup you have? I only ask because I have one of the Makita big boys too and I’ve only used it for cross cuts and maybe short (< 12”) rips on larger timbers. I wouldn’t have guessed it would be good for much more.

View jerryminer's profile

jerryminer

811 posts in 1281 days


#11 posted 02-09-2017 06:34 AM

I’m glad you were able to get good enough cuts. That saw is really a rough carpentry tool, not typical for furniture work.

When you get a jointer, you’ll never look back :)

-- Jerry, making sawdust professionally since 1976

View rwe2156's profile

rwe2156

2716 posts in 1320 days


#12 posted 02-09-2017 02:08 PM

Pretty difficult to build furniture with a skilsaw.

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

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