Lumbar cradle

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823 posts in 1618 days

01-19-2021 01:11 AM

This is the design for the back of a dining chair Called the “Lumbar Cradle”
An orthopedist and me came up with the design. Where the chair back would contact the fewest pressure points when sitting and engaging the back at the optimal angle on the scalene muscles of the back.
So at the 5-7degree angle of the chair limited pressure would be placed on the thorax- cervical vertebrae.

-- Illigitimii non carburundum sum

7 replies so far

Loren home \| projects \| blog 11020 posts in 4657 days #1 posted 01-19-2021 02:00 AM	Interesting idea and design detail. Are you going to band saw and sand it or do you have another idea for production?
Scap home \| projects \| blog 154 posts in 936 days #2 posted 01-19-2021 02:20 AM	Sign me up! :) So many chairs kill my back, this one sounds amazing.
Peteybadboy home \| projects \| blog 3074 posts in 2959 days #3 posted 01-19-2021 10:29 AM	Interesting idea. -- Petey
OldBull home \| projects \| blog 334 posts in 305 days #4 posted 01-19-2021 12:42 PM	We have some rocking chairs that are unusable to me. How they ever sold any was a miracle. They are flat across the back and bottom and hard as a rock. I would love to build something like this.
pontic home \| projects \| blog 823 posts in 1618 days #5 posted 01-20-2021 12:17 AM	Interesting idea and design detail. Are you going to band saw and sand it or do you have another idea for production? - Loren The bach is already ban sawed. I use my new craftsman “Roll sander to get the final contours. Here is a picture dry fit before band sawing. -- Illigitimii non carburundum sum
pontic home \| projects \| blog 823 posts in 1618 days #6 posted 01-20-2021 12:18 AM	Some of the steps -- Illigitimii non carburundum sum
pontic home \| projects \| blog 823 posts in 1618 days #7 posted 01-20-2021 12:22 AM	-- Illigitimii non carburundum sum

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Lumbar cradle

7 replies so far

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Walnut Eagle Carving

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Lumbar cradle

7 replies so far

Have your say...

Woodworking Skill Share Your woodworking skills are displayed for several lifetimes in each project. Have you had to compromise your project...

Woodturning On the lathe, by the lathe: do you have questions? frustrations? tips? This forum is for all the woodturners out there.

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Scrollsawing Intarsia, fretwork, intricate design cutting and more! This forum is for scrollsawers: share your tips, ask questions...

Joinery Have a question? a tip/strategy to share? a challenge, perhaps? Share your "joinery" discussion here.

Finishing The finish, whether paint, wax, stain, or something else, can make or break a project. What are your tips and questio...

Designing Woodworking Projects Looking for information on designing your projects? Having difficulties reading project plans? Looking for help with ...

Power Tools, Hardware and Accessories Are you unsure of which tools, or hardware, you need, or which brands to buy? Investing in tools and hardware can be ...

CNC Woodworking Questions and answers about CNC machines, tooling, best practices, and projects.

Hand Tools Wood, your hand tools, you and a little know-how. Share your questions, tips and strategies for the use and maintenan...

Jigs & Fixtures Using a jig is like having a couple extra hands helping out. Show us your jigs, share your tips, strategies and, of c...

Wood & Lumber Different wood requires different woodworking strategies - from cutting to finishing. Share your tips and challenges ...

Safety in the Woodworking Shop Before you pick up those woodworking tools, take the time to ensure your safety in the shop! Eyes, ears, fingers, and...

Focus on the Workspace Are you looking for or do you have tips to share regarding the workshop? Storage, equipment placement, efficiency, an...

Sweating for Bucks Through Woodworking If you are selling your work, then you have entered a woodworking dimension with added complexity and stress. If you...

Woodworking Trade & Swap All of us are holding onto treasure in our shops, that we either don't need, don't want, or could part with if presen...

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Woodworking Skill Share
Your woodworking skills are displayed for several lifetimes in each project. Have you had to compromise your project...

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Have a question? a tip/strategy to share? a challenge, perhaps? Share your "joinery" discussion here.

Finishing
The finish, whether paint, wax, stain, or something else, can make or break a project. What are your tips and questio...

Designing Woodworking Projects
Looking for information on designing your projects? Having difficulties reading project plans? Looking for help with ...

Power Tools, Hardware and Accessories
Are you unsure of which tools, or hardware, you need, or which brands to buy? Investing in tools and hardware can be ...

CNC Woodworking
Questions and answers about CNC machines, tooling, best practices, and projects.

Hand Tools
Wood, your hand tools, you and a little know-how. Share your questions, tips and strategies for the use and maintenan...

Jigs & Fixtures
Using a jig is like having a couple extra hands helping out. Show us your jigs, share your tips, strategies and, of c...

Wood & Lumber
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Focus on the Workspace
Are you looking for or do you have tips to share regarding the workshop? Storage, equipment placement, efficiency, an...

Sweating for Bucks Through Woodworking
If you are selling your work, then you have entered a woodworking dimension with added complexity and stress. If you...

Woodworking Trade & Swap
All of us are holding onto treasure in our shops, that we either don't need, don't want, or could part with if presen...

LumberJocks.com Site Feedback
Connect with the Website Gurus and tell us what you are thinking, suggestions, problems, functionality issues, and so...

Coffee Lounge
Need a break from all the standing and wood dust? Chat with your Forum Friends about their projects, their life, thei...