Seating Matters 3Ds Max Development

I am just going to use this blog as a way of showing my step by step progress in 3d Modelling using 3Ds Max.


Seating Matters Origional Chair Design

The Back of my Chair design

Developments in the design are visable in the upcoming work

I have now come to the stage where the chair is divided up into many segments, alot of which move to fit the body shapes and abnormal curvature of body parts such as the spine.

I am now basically shaping the segments to make them more organic and mould better with the body.

I began looking at how the chair is put together

this bar will allow the upper leg rests move in or out to suit the needs of the user.

 

Ergonomics
At this Stage none of my dimensions are accurate so I need to have a look to see what the average size human, man and woman is in order to see what size my chair should be.

I found this rather useful website http://www.allsteeloffice.com/NR/rdonlyres/3B6AC489-FC78-4B78-895A-0A5D8A9E888A/0/ErgoHandbook.pdf

'Ergonomics is a science focused on the study of human fit, and decreased fatigue and discomfort through the product design.'

'Anthropometry is the science that measures the range of the body sizes in population.'

It is important to remember that everyone comes in a different shapes and sizes and chairs and other products should be designed with this in mind.

Measurement

Letter

Female Male

                                          5th – 95th% 5th – 95th%         Over all Range 5th-95th%

Sitting Height A                  31.3” – 35.8” 33.6” – 38.3”         31.3” – 38.3”

Sitting Eye Height B           42.6” – 48.8” 46.3” – 52.6”         42.6” – 52.6”

Waist Depth C                    7.3” – 10.7” 7.8” – 11.4”            7.3” – 11.4”

Thigh Clearance D              21.0” – 24.5” 23.0” – 26.8”         21.0” – 26.8”

Buttock-to-Knee E               21.3” – 25.2” 22.4” – 26.3”         21.3 – 26.3”

Knee Height F                    19.8” – 23.2” 21.4” – 25.0”         19.8” – 28.0”

Seat Length/Depth G           16.9” – 20.4” 17.7” – 21.1”        16.9” – 21.1”

Popliteal Height H              15.0” – 18.1” 16.7” – 19.9”         15.0” – 19.9”

Seat Width                        14.5” – 18.0” 13.9” – 17.2”          13.9” – 18.0”

I also obtained some information from two different books
1) Adult Data. The Handbook of Aduly Anthropometric and Strenth measurements. -Data for Design. Government Consumer Research, Department of trade and Industry. By Laura Pebbles and Beverly Norris, Institute for Ocupational Ergonomics. Department of Manufacturing Engineering and Operations Managment.
2) The Measure of Man & Woman, Revised Edition, Human Factors in Design. By Henry Dreyfuss Associates.
 

Materials and fabrics in Mind

This would be for the area at the back of the seat which can allow parts of the seating to move in and out at different times. It connects to the chair and to a centre pole which will not move. There would need to be a screw on either end which would twist in opposite directions to tighten the metal causing it to lock, unable to move.

This would be the type of material that I would use as the actual chair cover. The seat will be sold with two seperate covers and the handy thing about this chair, is that it is divided into segments, so if one segment of the chair is soiled then it is only that part which needs cleaned and not the entire cover. This material is extremely handy aswell. It is 100% waterproof, but still allows air through, unlike leather. It is also alot more comfortable to sit on as it feels soft and smooth and can be patterened or coloured to suit the tastes of the individual users.