Kerfmaker in finnish plywood

  • Advertise with us
Project by StudioFormaat posted 01-03-2014 05:06 PM 8633 views 50 times favorited 17 comments Add to Favorites Watch

My version of this handy tool is made of 18mm Finnish-birch plywood [one of of my favorite materials] and can handle up to 75mm stock. The design is minimalistic in approach. With rounded corner on the sliding bar that cradles the thumb when the bar is pushed against the wood for a close fit. A large screw is inserted at the rear end for fine adjustment.

17 comments so far

View HillbillyShooter's profile


5737 posts in 1534 days

#1 posted 01-03-2014 05:10 PM

Definitely like your design and the minimalist approach—thanks for sharing and a definite favorite!

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View BTimmons's profile


2291 posts in 1727 days

#2 posted 01-03-2014 05:12 PM

I like the simplicity of it. Welcome to Lumberjocks, by the way.

-- Brian Timmons -

View Sanding2day's profile


1001 posts in 1089 days

#3 posted 01-03-2014 06:01 PM

Welcome to LJs… Pretty slick design, added to favorites… Thanks for sharing…

-- Dan

View ratchet's profile


1369 posts in 3029 days

#4 posted 01-03-2014 06:26 PM

Very nice! I do favor the functional almost Scandinavian look to it. Question: isn’t the screw used to adjust to thickness of the saw blade?

View RockyTopScott's profile


1184 posts in 2721 days

#5 posted 01-03-2014 07:01 PM

Looks like he built the kerf into the design.

-- “When you want to help people, you tell them the truth. When you want to help yourself, you tell them what they want to hear.” ― Thomas Sowell

View hoss12992's profile


3685 posts in 1135 days

#6 posted 01-04-2014 01:05 AM

Great job and welcome to LJ’s

-- The Old Rednek Workshop

View Philip's profile


1241 posts in 1781 days

#7 posted 01-04-2014 01:10 AM

That looks sharp. How does the screw adjust? Welcome to LumberJocks!

-- I never finish anyth

View woodchuckerNJ's profile


1094 posts in 876 days

#8 posted 01-04-2014 03:21 AM

I don’t understand how this one works. How do you adjust for kerf?
What does the screw adjust?

-- Jeff NJ

View stevo_wis's profile


123 posts in 2270 days

#9 posted 01-04-2014 03:22 AM

It looks like a nice job. I am embarassed to say that I dont know what it does. What is it’s function please?

-- Stevo

View dawsonbob's profile


1535 posts in 998 days

#10 posted 01-04-2014 03:24 AM

I’d like to know the function, too. I’ve never seen one of those before. Whatever it is, it looks really, really nice. Good job on whatever it is.

-- Mistakes are what pave the road to perfection

View ediazf's profile


19 posts in 1747 days

#11 posted 01-04-2014 03:41 AM

favorited… loving it. I was thinking a while ago on building on of these and yours surely look like what I wanted to do but, i think, I am not able to do so cleanly.

Nice work!

inspired on this one?

works like that, isn’t it? (Just that the kerf if fixed..?).

View dawsonbob's profile


1535 posts in 998 days

#12 posted 01-04-2014 03:48 AM

Ah-haaa! Thanks for the link, ediazf. Now I get it, but I don’t think I would have figured it out just from the pictures. I can be pretty dense on days that end in the word “day.”

-- Mistakes are what pave the road to perfection

View Greg In Maryland's profile

Greg In Maryland

544 posts in 2240 days

#13 posted 01-04-2014 04:42 AM

I think that he uses the phillips screw on the end to increase/decrease the kerf by screwing it in or out. Or at least that is my take on it.

StudioFormaat that is a nicely done tool and your photography is stellar!

Welcome to LumberJocks!


View ediazf's profile


19 posts in 1747 days

#14 posted 01-04-2014 05:00 AM

I think that the kerf is already set when the end of the jig is flush (I think you can see that there is a kerf like space on the inside part where the two pieces meet). All you have to do then is to place the wood piece on the slot and you have the correct spacing for your second cut….

That what I am thinking… is too late here (Chile, south america) for my brain to function well.. I am giving it another thought tomorrow and maybe even try to build one for myself :)

View Bsmith's profile


330 posts in 1912 days

#15 posted 01-04-2014 04:05 PM

Plywood never looked so good.

-- Bryan

showing 1 through 15 of 17 comments

Have your say...

You must be signed in to post the comments.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics