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Log joinery question.....

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Forum topic by Catspaw posted 05-03-2008 12:34 PM 2864 views 0 times favorited 10 replies Add to Favorites Watch
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Catspaw

236 posts in 4350 days


05-03-2008 12:34 PM

Topic tags/keywords: question joining rustic traditional

I’m looking for log joinery info without having to go out and buy yet another book I’ll look at for 20-30 mins, get info I need, then never look at it again.

I’m not looking for stacked log home joinery, I know that. I’m looking to join round logs, debarked, into a timber frame structure maybe 12’ by 18’ or so, corregated roof, and eventually some barn siding I have laying around. Mortise and tenon, bents, rafter to header, etc. Probably 3 bents 12’ wide.

I have maybe 30 or so sassafrass logs, 10’ to 12’+, 8” to 14” in dia. (not enough for a log home), but, enough to make a timber frame for my coal forge. Rather than re-invent the wheel and waste some logs I can’t afford to lose, I would like to be able to get right to it.

I’m searching this site right after I post this also. (you’d think I would do that before wasting everybody’s time.)

-- arborial reconfiguration specialist


10 replies so far

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frank

1492 posts in 4741 days


#1 posted 05-03-2008 01:20 PM

Hello Catspaw;
—-now you’ve got my attention!

‘Bents’....I love, as so also do I like half-laps….mortise and tenon….along with scarfs. So also do I love//like talking timber framing….old barns and all that wood joinery found in post and frame.

These pictures are inside my 4 bay, 5 bent English Barn, 1780 which we took down back in 2000 and moved up to my place. Oh….by the way, the ‘we’ was my wife and I and then some other guys….

....and….

....and….

....and….

....and….

So if this is what you’re looking for….I’m happy to talk and answer//ask questions. I will be going off-line shortly but will be happy to get back with you, if you want….

Thank you.
GODSPEED,
Frank

email at:
[email protected]

-- --frank, NH, http://rusticwoodart.tumblr.com/

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Thos. Angle

4444 posts in 4497 days


#2 posted 05-03-2008 01:20 PM

might try the library or you might have to write the book yourself

-- Thos. Angle, Jordan Valley, Oregon

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frank

1492 posts in 4741 days


#3 posted 05-03-2008 01:37 PM

—-just an-other thought or comment here, I also like talking about making my own tree-nails for putting those timbers together! See, I really can’t leave the subject of timber framing….

Actually I probably have just about all the books on the subject that have been written….at least the ones worth reading….but after reading them, I found the best teacher was just doing and hanging around folks who do this sort of framing//building. I do know that over in your neck of the woods there are a lot of timber framers still working the woods, so you might try asking the locals also. In my experience I have found timber framers to have a wealth of information and they are some of the friendliest folks to hang around. You might start by trying the local timber framing guilds and then also the Amish around you.

I might also add that all those wood joints you are wanting to cut can also be cut with a chainsaw….

Thank you.
GODSPEED,
Frank

-- --frank, NH, http://rusticwoodart.tumblr.com/

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snowdog

1167 posts in 4517 days


#4 posted 05-03-2008 02:40 PM

Great pics, thanks frank. My tag line (signature) says it all.

-- "so much to learn and so little time"..

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Karson

35207 posts in 4935 days


#5 posted 05-03-2008 04:01 PM

Good luck on the construction.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Appomattox Virginia [email protected]

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Catspaw

236 posts in 4350 days


#6 posted 05-03-2008 04:03 PM

Well, when I did my search your name [Frank] came up. Unfortunately, the normal beam type stuff I can figure out because it’s similar to any framing.

What I’m talking about is all round logs. So mortises and tenons are easy enough. A bent is easy. The problems are when you get to an intersection between. the top corner of the bent, the connector beam, and a rafter tail (most likely with a round birdsmouth).

I’m guessing that if I extend the connector beam beyond the bent, I can stack the cross beam on the post, connector on top of that corner, then put the fly rafter on the end of the connector.

But there are watershed issues that I’m still trying to imagine for the birdsmouth (maybe a wedge shape with the peak at the top so water will run out of the birds mouth underneath kinda thing.) Plus shear braces and or purlins for the roofing and board and batten siding.

time to go to farmers market. must go. thinking more. back later.

-- arborial reconfiguration specialist

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Catspaw

236 posts in 4350 days


#7 posted 05-04-2008 02:02 AM

The silly things is I work amoungst so many people who do this type of stuff, but, I never have access to them. Work is an hour away and when I’m working, I’m working. And I don’t feel like sight-seeing other times. I have to wait for one of the bosses friends to show up to interact.

I’m surprised that all my queries returned timber framing with square beams and such or straight-up log cabins. Doesn’t anybody just build with trees anymore? (that’s supposed to be a joke.)

Actually, I wasn’t thinking chainsaw….more like axe and adze. I have about 70% of the hand tools for timberframing and could grab more stuff from work if need be. I view this as an opportunity to better understand the process, particularly since it is a small job. Already did the Prazi beam saw and stuff on a straw bale. Lookin’ for something more primitive. Trees and fire and metal and grunting…what more could you ask for.

-- arborial reconfiguration specialist

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Catspaw

236 posts in 4350 days


#8 posted 05-10-2008 11:31 AM

Thought I’d add this to the confusion. Boss said to look up Swedish Scribe cuts. Which I did and it still came up with mostly log cabin structures. He did fine tune the thoughts alttile in that he said joining rounds logs as I’m wanting is not usually mortise and tenon, but, rather Swedish Scribe cuts.

At least it’s closer than I was before.

-- arborial reconfiguration specialist

View dirtclod's profile

dirtclod

169 posts in 4395 days


#9 posted 05-10-2008 02:16 PM

I like what you are doing. Seems like a couple of cool projects. Normally I like sassafras for this type of project but I’m worried about it’s tendancy to start fire at the slightest spark. What do you think about using it close to your forge?

-- Wonderful new things are coming! - God

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Catspaw

236 posts in 4350 days


#10 posted 05-11-2008 12:22 AM

Well, I don’t think the sparks are going to gang up and attack the sassafras. If I seal them with Thompson’s or something there shouldn’t be any problem. Having started so many fires in my lifetime I learned that wood doesn’t combust unless you prod it pretty good.

Also, I figured I’d have some sort of protection like a wall of stone or sheet metal vent/chimney, etc. For something like this, I’m not going to really leave anything unchaparoned. But, the volume of wood won’t be that great. The contents of a building add more to a fire than a structure like this. Plus, I don’t see me really using it heavily like an everyday blacksmith. I’m more worried about casting and/or welding.

Although accidents do happen, I don’t work un-safely. I have a tendency to be aware of where sparks and things are flying when I grind and weld and such.

(besides, knowing sassafras the fire wouldn’t last very long anyway…..........that’s supposed to be a joke…)

-- arborial reconfiguration specialist

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