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Wooden coping saw

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Project by kaerlighedsbamsen posted 11-09-2015 11:52 AM 4723 views 29 times favorited 20 comments Add to Favorites Watch

For a while I have been looking for a suitable Coping saw. But all awailable, even the Bacho ones, had sloppy steel spring frames that was too “bendy”. And after seeing how Paul Sellers use his on the push stroke so that the lines are not obscured by breaking wood fibres, a stiff frame became a must have.

Looking at this video with Adam Savage of Mythbusters it was clear that a broader frame is the way to go. Tose are nice saws but insanely expensive. And while at it- what has flexural strength as good as aluminium? Wood!

So off to the drawing board and then the workshop. Made all working parts i a few hours, and after having tested that the frame was stiff enough, took the time to make a nice handle. Wanted it to facilitate both push and pull use and ended up with the shape seen that is nice to hold.

Thsi resulted in a super light saw (125 gr/4.4 oz) half the weight of a Knew coping saw. The frame is stiff and the blade can be tensioned to make a high pitch ring when tapped. And i spent 1,5€ in materials including the blade.

Frame from straight grown ash, handle from ebonized oak and metal parts from assorted screws and bolts. The blue tape is just to give a little extra resistance when rotating the blade. Homemade danish oil and wax for finish.

Yet another fun and rewarding tool build.
Let me know what you think!

-- "Do or Do not. There is no try." - Yoda





20 comments so far

View kaerlighedsbamsen's profile

kaerlighedsbamsen

1194 posts in 1381 days


#1 posted 11-09-2015 11:57 AM

Thought that this was a “worlds first” wooden coping saw untill right now when i found this nice writeup of a different approach.

-- "Do or Do not. There is no try." - Yoda

View Jim Jakosh's profile

Jim Jakosh

18511 posts in 2773 days


#2 posted 11-09-2015 11:59 AM

Nice strong frame. Good job on it…..................Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View horky's profile

horky

200 posts in 2598 days


#3 posted 11-09-2015 01:00 PM

Great looking and functioning saw. Any chance you can share dimensional information? Thanks.

View Smitty_Cabinetshop's profile

Smitty_Cabinetshop

14245 posts in 2286 days


#4 posted 11-09-2015 01:11 PM

Very nice!

-- Don't anthropomorphize your handplanes. They hate it when you do that. -- OldTools Archive --

View yuridichesky's profile

yuridichesky

624 posts in 1631 days


#5 posted 11-09-2015 01:26 PM

Like it very much! Good build of great tool!

-- Yuri (10x4 -- yeah, that's my tiny shop!)

View kaerlighedsbamsen's profile

kaerlighedsbamsen

1194 posts in 1381 days


#6 posted 11-09-2015 02:30 PM

Thanks guys!

Horky: Sure- this should be the information you need:
- Frame overall: 225×130
- back: 4,5×32
- Ends: 12×32 tapering to 25 The weight reduzing cutouts made on the TS by moving across the blade (and resting against a fence).
- Handle: Ø28×125 Bolt glued in with epoxy
- Metal parts: M6 bolts and wing nut

Let me know if you have any questions

-- "Do or Do not. There is no try." - Yoda

View AaronK's profile

AaronK

1465 posts in 3132 days


#7 posted 11-09-2015 04:25 PM

fantastic idea, and a super easy build. thanks for the idea and the details!

View madts's profile

madts

1775 posts in 2007 days


#8 posted 11-09-2015 04:57 PM

Very nice tool Bamse.

-Madts.

-- Thor and Odin are still the greatest of Gods.

View kaerlighedsbamsen's profile

kaerlighedsbamsen

1194 posts in 1381 days


#9 posted 11-09-2015 05:17 PM

AaronK: Thanks! Are you going to make one?
Madts: Thank you too. Definitely the most fun projects in the workshop are tools

-- "Do or Do not. There is no try." - Yoda

View AaronK's profile

AaronK

1465 posts in 3132 days


#10 posted 11-09-2015 05:25 PM

I think so – eventually anyway.!

View kiefer's profile (online now)

kiefer

5328 posts in 2334 days


#11 posted 11-09-2015 07:02 PM

Bamse that is one great looking saw and looks to be well made and strong I am amazed at the light weight .
I sure will make one like it but may try Baltic birch ply and hope it is strong enough .
Thanks for posting this with all the details that will help a lot .

Klaus

-- Kiefer https://www.youtube.com/user/woodkiefer1/videos

View kaerlighedsbamsen's profile

kaerlighedsbamsen

1194 posts in 1381 days


#12 posted 11-09-2015 07:28 PM

Thanks for the kind words, Kiefer. Looking forward to see your version!

Btw found another diy wooden saw, this time in the shape of a small frame saw: https://youtu.be/5bPAp4uY-Rs

-- "Do or Do not. There is no try." - Yoda

View Grumpymike's profile

Grumpymike

2083 posts in 1983 days


#13 posted 11-09-2015 07:29 PM

Way cool, And on my bucket list for sure.

-- Grumpy old guy, and lookin' good Doin' it. ... Surprise Az.

View Texcaster's profile

Texcaster

1215 posts in 1341 days


#14 posted 11-09-2015 11:39 PM

I like this a lot. My bendy old Stanley is in for a refit.

-- Mama calls me Texcaster but my real name is Mr. Earl.

View ColonelTravis's profile

ColonelTravis

1453 posts in 1561 days


#15 posted 11-10-2015 04:51 AM

That’s awesome, so you made the frame with slots in the end pieces and the long piece slides down in there it looks like. But is that also a spline I see, or just darker end grain?

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