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Laminated Office chair

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Project by DaveGlx posted 10-24-2017 11:21 PM 799 views 1 time favorited 8 comments Add to Favorites Watch

This chair is more of a concept piece.

There are a two elements I wanted to explore in this design.

Ply’s direction – In all my previous works plies were in same direction through all the piece. In this chair, it was obvious that the leg and bucket must have vertical plies to achieve strength while the base has to be made of horizontal plies.
The challenge was to find a way to make this transition interesting and visually pleasing. The solution tested here is to glue the plywood strips of the leg in a spiral manner so there are 4 “faces” instead of usually 2. (Pic 4)

Springiness – I wanted to incorporate some sort of shock absorption to this chair. The shape designed has a flexibility and start to flex with weight of 40kg. To prevent a break from overweight at 100kg the sit layer will be stopped and supported by the bottom layer.

I’m still considering a trim of the sides (Pic 5)

Any C&C will be appreciated.
Cheers,
Dave

-- Dave -





8 comments so far

View DMiller's profile

DMiller

251 posts in 306 days


#1 posted 10-24-2017 11:59 PM

Very Cool!

-- Dale Miller Modesto, CA "I can do all things through him that strengtheneth me." Philippians 4:13. "Woodworking minus patience equals firewood."

View Jim Jakosh's profile

Jim Jakosh

19743 posts in 2938 days


#2 posted 10-25-2017 12:52 AM

Very nice, Dave. I understand the first one to be the concept! You learn a lot by making at least one. That plywood shapes up quite nicely.

I wonder how the sides of the chair would look if it were not straight. Plywood looks interesting if there is a bit of curve to it . That shows some of the ends of the plys.

What kind of plywood is it? What thickness did you use?

Cheers, Jim

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

View DaveGlx's profile

DaveGlx

347 posts in 2277 days


#3 posted 10-25-2017 02:08 AM

Jim, many thanks for your insights mate.
I usually use recycle plywood from shipping crates so lets say kind in unknown/recycled ;)
For this chair i had 15mm thick pieces.

I totally agree about the sides.
As it is a trial piece I may continue and do as you suggest or cut as per pic 5.
The idea to leave it straight ATM was to create some contrast to the leg which shows lots of plies running everywhere.

-- Dave -

View majuvla's profile

majuvla

11181 posts in 2700 days


#4 posted 10-25-2017 05:55 AM

Well, this is quite smart concept and I bet it works good. Only, I would rather see some hardwood for leg set – but as you said it’s just a concept -well done!

-- Ivan, Croatia, Wooddicted

View helluvawreck's profile

helluvawreck

29085 posts in 2699 days


#5 posted 10-25-2017 01:12 PM

This is a very nice and creative chair. Congratulations.

helluvawreck aka Charles
http://woodworkingexpo.wordpress.com

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

View  woodshaver Tony C   's profile

woodshaver Tony C

5529 posts in 3186 days


#6 posted 10-25-2017 02:45 PM

I love unique projects and this one is certainly unique! So I love it! Nice work!

-- St Augustine FL, Experience is the sum of our mistakes!

View kiefer's profile

kiefer

5579 posts in 2500 days


#7 posted 10-25-2017 11:04 PM

Nice work Dave !!!
This is a very interesting design and I like your explanation on the reasons of grain direction and flex of the chair under weight .
I would like to see more of the construction process .

Klaus

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

View Charlie Kilian's profile

Charlie Kilian

43 posts in 450 days


#8 posted 11-03-2017 10:16 PM

How did you attach the legs/bottom portion to the seat/top portion?

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