What's this?
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No manufacturing in mind as yet Gregory, just playing around. If it develops into something, so be it
Just thinking out loud ...... maybe TIG's sprung clip could be used in a double central column (inner / outer) to achieve an easy dual height for the table.
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Maybe...
Make the top [moving] 'sleeve' bigger than the bottom part and use sprung hw catches...
Awkward to 'unlatch' 4 of them !
???
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How about tabletop supports that move with the tabletop?
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Yeah, something along the lines of both might work. I was thinking about an umbrella type support struts also.
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Great idea... though I think as you drew it the 'down' support locations might clash with the chairs under etc...
However, it could be the basis of a neat solution...
Perhaps a two-step lift...
You raise the table higher that its 'up' position and the supports lock in place at their bottom ends, then the top ends of the supports slide out to lock in the top in its 'up'...
Perhaps along these lines ?
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Think we are getting somewhere now
Probably could do with Dave R for comment as wood can be tricky at times 
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How about simplifying this thing and eliminating the sliding seatback altogether?
Personally I find this version much more inviting and less utilitarian. It has the added benefits of using less material and easier construction.@tig said:
Great idea... though I think as you drew it the 'down' support locations might clash with the chairs under etc...
No, actually they fit quite nicely under there in the lowered position.
This isn't finessed and needs a lot of tweaking but you get the idea
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Just noticed that the piano hinge on the back of the chair is not where it should be. I raised it when rotating the seatback support and forgot to lower it again. Sorry about that.
First mistake I've ever made
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One observation - I don't think any of these ideas would ever qualify as a coffee table. Way too high, and too big too.
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I have a coffee-table that's bigger in plan, although a few mm lower...
PS: Love the new idea - without the plumbing ! "
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@tig said:
I have a coffee-table that's bigger in plan, although a few mm lower...
Really? It seems awfully high to me, and it seems like it wouldn't work in the average home, overall size-wise. Only homes with larger than average size living rooms. But whatever, the fun is in the designing.
@tig said:
PS: Love the new idea - without the plumbing ! "
Thanks.
No plumbing???
Would be really convenient. Maybe as an option? -
I was also playing around with the idea of a spring in the base to make raising and lowering easier. Any thoughts on this?
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I saw this and thought of you ! Gotta say it's pretty tight.I like the fact it is asymetrical perhaps this is an avenue no one here has been down.
PS i don't see it on their main site, anyways both the facebook link and their home page are pretty design centric for us 3D nerds.
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@chedda said:
I saw this and thought of you ! Gotta say it's pretty tight.I like the fact it is asymetrical perhaps this is an avenue no one here has been down.
PS i don't see it on their main site, anyways both the facebook link and their home page are pretty design centric for us 3D nerds.
Interesting, Chedda. But they main point of this thread is to design something that can be converted from a coffee table to a dining table, requiring it to be raised and lowered
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Interesting FB site.
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Hey Mike, you never did say what you thought of my non-sliding seatback solution.
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The project in on the shelve at the moment but I will take it down and play a little more over the weekend. Thanks for you input, its been very helpful.
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Oh i see hell n back that is a tall order. If its just a coffee table without chairs it's do able. Otherwise both the chairs and table will have to extend. Perhaps telescopically.
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