Stair Design Software

Some people have been asking me how to build solid curved parts using StairDesigner. To answer I have made a short video that shows how to use StairDesigner DXF files and a 3D solid modeller in Progecad or Autocad to get the block size and face moulds needed to mark out a curved handrail or string.

I find that using a solid modeller is faster less error prone and more accurate that doing everything in 2D whether it be on paper or in CAD.

The method I outline in this video is based on traditional European methods so for English and American carpenters used to the tangent method it may seem a bit obscure. But I also use the 3D solid modeller when I set out tangent handrails and it’s also very handy.

I use the tangent method extensively for setting out wreathed rails, not only moulded solid rails but also rounded and twisted rails as seen in my article on Curves stair parts here:

http://stairdesignsoftware.net/different-ways-to-build-curved-stair-parts

I guess that the number of people today looking to build solid wood wreathed rails and strings are few and far between as this craft is today indeed a dying art.

It use to be the very height of a wood worker’s craft to build wreathed rails, this was when men pushed themselves on to excellence simply for the creative pleasure of inventing something new. Surpassing one self and moving forward into unexplored ground was a challenge men undertook for the sake of itself and not only to earn more money, buy a bigger car or look better that the neighbour.

The world has certainly changed quickly these last 30 years and our immense creative abilities have been channelled towards a technical progress that instead of creating a more human world, in my option have, in many cases hindered and destroyed our real creativity and aspiration towards beauty and achievement.

In my everyday work as a stair builder I have always strived to use modern technology as another tool in the workshop.

In any real in life on has to be clear on the goals one’s aiming at.

In craftwork the goal is the creation of a object that has to balance utility, beauty and economy.

Firstly the final object has to serve it’s purpose, then it has to be as perfect in it’s form as possible given the circumstances and last but not least, it has to fit the budget.

Utility and beauty are noble objectives that quickly send our egos rocketing to the sky. Economy is a more humbling objective that should keep us well rooted to the ground.

As with all tools technology is only of value when it’s being used to progress in the right direction.

A tool is only useful when it’s at the service of a higher goal.

I would even say that the man holding the tool is only useful when he himself is a tool working towards a higher goal.

Maybe the higher goal for a craftsman is his craft. The goal of building the object that assembles together in harmony for this one and unique time the three objectives of utility, beauty and economy.

Using technology, that has a beauty in itself of course, I try not to forget my goal, and strive to find the balance between utility, beauty and economy.

Here’s a video where I show grossly how I use high tech CAD to simplify the design process of solid wreathed handrails.

The techniques I use here are based on traditional European techniques that have been around unchanged for hundreds of years.

I also use CAD in a similar way to set out handrails using the English tangent system.

CAD has the great advantage of minimizing the economical aspect by making the design faster, smoother and more efficient.

Hope you enjoy the marriage of modern and tradition.

I use StairDesigner to adjust the flow of the curved parts so that everything fits nicely together.

To see how I adjust the curves please read this article here:

http://stairdesignsoftware.net/stair-design-for-curved-strings-and-landings

If you have found this article interesting or maybe not , please leave a comment and let me know

Technorati Tags: curved, handrails, stair construction, stair design, stairbuilding, stairs, strings, wreathed

ProgeCad, Using Stair Designer curved, handrails, stair construction, stair design, stairbuilding, stairs, strings, wreathed

Stair caculator software and AutoCAD

StairDesigner can calculate and build and draw stairs very fast and efficiently but as with all parametric software whether it is stair software or not, it doesn’t cope with all the intricacy and complexity of real world situations.

I find that once StairDesigner has drawn up the general stair plans it’s often necessary to add details or modify the design to adapt to my construction techniques and the specific on site situations.

In the majority of projects that I have its rare that I only have the staircase to build. In general the staircase needs at least a balustrade around the stair well, where as more than often I need to design many elements that parametric stair software is not built to cope with, like balustrades around complicated stair wells, cupboards under stairs, specific handrails and balusters, curved steps, etc, etc……

After having looked around at other design software I’ve finally come to the conclusion that although parametric software is great for stair calculations and design, only general drafting software like Autocad can really cope with all the different situations that I come across in my real life stair design situations.

Leaving out the design details, specific moldings, cupboards, here are some of the main limitations that I have found with the StairDesigner parametric stair calculator:

- Doesn’t draw bull nose and curtail steps and curved risers.

- Doesn’t draw starting volutes

- Can’t give different thicknesses for strings on each flight

- Doesn’t design the string and handrail transitions to level landing

Luckily StairDesigner drawings can be exported in DXF and opened in a general drafting software to update and modify the design details.

In this video I show how to take a stair built in StairDesigner and open it in Autocad to add a bullnose step.

Of course I use AutoCad but the same process can be used with any CADD software that can read DXF files.

If you are only interested in building manufacturing drawings then a 2D drafting program like Solid Edge is easily enough. For 3D presentation a dedicated rendering tool is probably easier than AutoCad.

The interesting thing about combining CAD and StairDesigner is that it gives unlimited design possiblities for adding and modifying the stairs.

To read our review on StairDesigner just click on the link below:

<Stair software review>

Here are some other articales for AutoCad users:

Spiral Stair case problems - AutoCAD Forums
Spiral Stair case problems AutoCAD 3D Modelling & Rendering.

3d Curved stair - AutoCAD Forums
Making stair in 2d and 3d with AutoCAD

Creating a New Drawing by Using Parts from Another Drawing
Create a separate staircase drawing by using the staircase you’ve already drawn.

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Using Stair Designer autocad, cadd, calculator, curved, software, stair, staircase, stairway, step, string