LumberJocks

joint for legs in this Pi Chair

  • Advertise with us

« back to Joinery forum

Forum topic by CharlesA posted 03-25-2015 10:55 PM 799 views 0 times favorited 12 replies Add to Favorites Watch
View CharlesA's profile

CharlesA

3018 posts in 1258 days


03-25-2015 10:55 PM

Topic tags/keywords: question joining

Someone has asked me about building this chair. The back is straightforward. Not sure about the legs, though. How would you join the legs on this chair?

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson


12 replies so far

View mahdee's profile

mahdee

3548 posts in 1228 days


#1 posted 03-26-2015 12:18 AM

It looks like there are 4 extensions, one on each leg that are screwed to the seat and the legs screwed to them. (first picture. right/front leg)

-- earthartandfoods.com

View CharlesA's profile

CharlesA

3018 posts in 1258 days


#2 posted 03-26-2015 12:41 AM

mrjinx, I noticed that. I just can’t figure how that is a strong joint.

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

View RockyTopScott's profile

RockyTopScott

1184 posts in 2939 days


#3 posted 03-26-2015 01:05 AM

Hard to tell from pictures. Maybe sliding stop dovetail connecting legs to extensions?

-- “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 mahdee's profile

mahdee

3548 posts in 1228 days


#4 posted 03-26-2015 02:22 PM

Yea, I think like rockyT says. It is probably doweled into the seat as well as dovetailed to the extension. It will support the vertical weight alright as long as it is not dragged around too much. The back appear to be tongue and grooved into the seat as well. I am not sure if I like the structure although the design is appealing.

-- earthartandfoods.com

View OSU55's profile

OSU55

1056 posts in 1450 days


#5 posted 03-26-2015 02:25 PM

mortise and tenon or multiple dowels, or sliding dovetail to prevent leg rotation. Don’t think screws alone, w/o dowel or something connecting leg to extension to take the stress, will work.

View CharlesA's profile

CharlesA

3018 posts in 1258 days


#6 posted 03-26-2015 02:26 PM

Thanks everyone. I figured screws would just split the legs. I didn’t think about a sliding dovetail. That’s interesting.

We’ll see . . .

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

View Yonak's profile

Yonak

979 posts in 981 days


#7 posted 03-26-2015 02:35 PM

It’s hard to tell with no side view but I wonder if the back legs are screwed into the chair back.

View daddywoofdawg's profile

daddywoofdawg

1010 posts in 1035 days


#8 posted 03-26-2015 04:27 PM

I would say dowels on the legs to the seat, and then a screw in the ext into the seat, and maybe one into the leg.I’ve seen this in dining room chairs and desk chairs just don’t have one to ref. I would glue the leg to the ext.

View CharlesA's profile

CharlesA

3018 posts in 1258 days


#9 posted 03-26-2015 05:01 PM

Mr. Jinx sent me this video. If you look about 4:20, you’ll see how they do it.

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

-- "Man is the only animal which devours his own, for I can apply no milder term to the general prey of the rich on the poor." ~Thomas Jefferson

View Yonak's profile

Yonak

979 posts in 981 days


#10 posted 03-26-2015 05:49 PM



Mr. Jinx sent me this video. If you look about 4:20, you ll see how they do it.

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

- CharlesA

I guess they’ve done their research but it just seems like that design wouldn’t hold up to heavy use.

View mahdee's profile

mahdee

3548 posts in 1228 days


#11 posted 03-26-2015 06:30 PM

These chairs sell for somewhere between $300 to $1200 a piece.

-- earthartandfoods.com

View OSU55's profile

OSU55

1056 posts in 1450 days


#12 posted 03-26-2015 08:25 PM

About as good as it gets with a slender, non cross braced design. Not what I expected from looking at the previous pics. It wouldn’t last long if tilted up on the back legs a lot, but neither would the back.

Have your say...

You must be signed in to reply.

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

HomeRefurbers.com