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August 7, 2014
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Hi Alex,
Further development of the straight-per-part stringboard is not currently planned to be done. So adding a number of parts in the properties screen and manual correction will be needed in some cases.
Extending a point is also possible by using the relative angle coordinates on the coordinate input on top of the screen.
About cutting stringboards that are customised, you need at least 2 step noses to cut and keep the customisation. Due to the complexity of this calculation, this is a mandatory condition.
Regards
Michel
August 7, 2014
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Hi Alex,
Working with the straight per part can require some manual work, and there is where a cad becomes useful. In Stairdesigner, you can not just move a point like an extension of the angle, so it is very difficult to do so. In a cad, it is an easy task. You can output the 2D plan to rework the stringboard and then transfer the points back to the software. This is not ideal, but this is how the software editor operates at the moment. There are not any extended cad functionalities in it.
To see if 2 stringboards align properly, you can do that in the 3D window using the ” hidden faces orthogonal “button. In combination with the side view buttons, you have a perfect view of the angle lines, and you can see immediately if the stringboards are in line.
You can mostly not have the top and lower point plumb for a cut and keep the parallel and width the same. Another factor is the step winding. This also makes it impossible to keep the reference line the same above all step noses. The straight per part is a balance between the worst and best case scenario and will always require some manual intervention with or without the need of a cad. I have sent a message to the developers to have a look at it if something could be improved without the certainty that it will.
Here is a version that I made to correct the stringboard as good as possible. The cutting creates an issue depending on where you cut it. Sometimes the customisation is lost after a cut. This remark has also been sent to the developers.
Regards
Michel
June 9, 2023
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Hi Michel,
I just tried to split a different staircase but my X values aren’t the same when i go into the outside edge of the stringboard? If i enter my measurement it says that it won’t work. Drawing attached, it’s the last stringboard on the right.
Thanks
Alex
June 9, 2023
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couldn’t attach all photos so here is the reference one of what i need.
THanks 
June 9, 2023
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Hi Michel,
That video
One other issue i have stumbled upon is when you have to modify the first stringer on a winder. The program does not make the vertical offset the measurement you choose. I understood from you that is because it tries to find the average over all the step noses.
I have manually changed the top of the stringer to be 50mm from the nose of the step but i don’t know how to make the first step the same as there is no reference points to measure from.
Also once the top of the stringer is modified now how can i check that it is parallel to the bottom of the stringer and at my desired width of 270mm?
Once this right stringer is complete the left stringer needs to be exactly the same width of 270mm and finish at the same points. how can I check this too?
Hope that makes sense. File in question is attached.
Thanks
Alex
June 9, 2023
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Michel said
Hi Costi,
As discussed during the setup session, we do not have specific custom measurements on the documents like steps and stringers. You, therefore, need to output the dxf files and open them in a cad program in order to set the measurements you need. The other alternative is printing the templates, but I understand that this is an option you are not willing to explore. I will send this feedback to the developers and see if there is something that can be done. If some specific programming is requested, it might come with a cost.
About the kite winders, see our model adjustable winders stair in the libraries. We have discussed this model during the setup too.
On the exterior perimeter, there is a possibility to cut the stringboard into sections. Send us a stair, and we will provide you with a video on how to do it. Also, mention how you would cut them.
Finally the pitch or angle is not a standard parameter from stairdesigner as you have the control values including the stair rule. I will also send this feedback to the developer but here some inside information on the stair rule
Stair Rule
BLONDEL RULE
He found that the length of a comfortable step on an even surface is the double of the step
height on a vertical ladder. He concluded that two times the step height plus the tread width
correspond to the length of a step.
The length of a comfortable step is about 62 cm. The Blondel Rule, also called Stair Rule,
says:
60 < (2xH + T) < 64
Due to recent increases in the size of the human body those values may be replaced by 62
and 66.
2 CONTROL FUNCTION
In addition to the Blondel Rule, the control function avoids the stair being:
– Too steep, which leaves too little space for the feet on the steps and
would make it difficult to climb, or
– Too shallow, which would take up too much space.
The parameters “height” and “tread width” are controlled by means of a maximum and
a minimum value so that the inclination of the stair remains at 33° ± 5°.
StairDesigner offers a control function for the three parameters of the tread line (you can see
whether the stair observes these three parameters thanks to the red or green point on the OK
button of the window “stairwell parameters”).
regards
Michel
Hi Michel,
As requested here is a staircase we need the left stringer number 2 cut into three segments across the plumb cut at the bottom and the top winders.
Let me know if you have any questions.
Thanks
Alex
August 7, 2014
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Hi Costi,
If you want a standard application of the straight per-part stringer, you need to mention this in the submethod of the stringboards and add this to your manufacturing method.
If you have straight steps, then all will be parallel. When you have winded steps, the system calculates an ideal qty of straight segments in order to cut it. This results in an easy-to-cut shape but affects the connecting points between the stringboards. I will give feedback on this remark to the developers to have their views on it. You can add more reference points parameters per stringboard in the field ” number of parts”. This will increase the number of straight segments but also add more cutting sequences on the stringboard. If you set this number of parts around 10, the shape would look like a curved stringboard, as each point is going to reference the step noses. This parameter is set by default on automatic.
On your third point, I will pass it on to the developers. They are the ones deciding on how custom changes are applied in the software. You need to know that you do not pay for upgrades, so extra features are free. If you need a specific feature that is not planned or has no demand, it will be considered bespoke programming, and a cost will be involved if it is feasible.
Regards
Michel
June 9, 2023
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Hi Michel,
As standard when you make a stair it comes with curved stringers in the software. Very few stair manufacturers make curved stringers on a straight staircase as standard. Is there a way to get the software to make the stringers straight per parts when you enter the parameters so it actually displays correctly?
I need to make the stringers custom like you said. But why can’t the program make the top and bottom of the stringer parallel to the nose and bottom of the riser as it does in the curved stringer option? Seems like quite a big limitation that needs to be added. I don’t know how to make them parallel easily and quickly. Please advise.
Not a lot of traditional staircase manufacturers use CNC to cut the entire staircase. Therefor you need to have all the measurements and angles displayed for each peace individually. I don’t want to export the dxf and put the measurements manually as that defeats the purpose of paying for the software in the first place, it needs to do it for me please. If we get the measurement option programmed, coded and payed for how much would it be? I take it this will only be available for our companies software and not everyone else as well since we payed for something custom.
Thanks
Alex
August 7, 2014
Offline
Hi Costi,
As discussed during the setup session, we do not have specific custom measurements on the documents like steps and stringers. You, therefore, need to output the dxf files and open them in a cad program in order to set the measurements you need. The other alternative is printing the templates, but I understand that this is an option you are not willing to explore. I will send this feedback to the developers and see if there is something that can be done. If some specific programming is requested, it might come with a cost.
About the kite winders, see our model adjustable winders stair in the libraries. We have discussed this model during the setup too.
On the exterior perimeter, there is a possibility to cut the stringboard into sections. Send us a stair, and we will provide you with a video on how to do it. Also, mention how you would cut them.
Finally the pitch or angle is not a standard parameter from stairdesigner as you have the control values including the stair rule. I will also send this feedback to the developer but here some inside information on the stair rule
Stair Rule
BLONDEL RULE
He found that the length of a comfortable step on an even surface is the double of the step
height on a vertical ladder. He concluded that two times the step height plus the tread width
correspond to the length of a step.
The length of a comfortable step is about 62 cm. The Blondel Rule, also called Stair Rule,
says:
60 < (2xH + T) < 64
Due to recent increases in the size of the human body those values may be replaced by 62
and 66.
2 CONTROL FUNCTION
In addition to the Blondel Rule, the control function avoids the stair being:
– Too steep, which leaves too little space for the feet on the steps and
would make it difficult to climb, or
– Too shallow, which would take up too much space.
The parameters “height” and “tread width” are controlled by means of a maximum and
a minimum value so that the inclination of the stair remains at 33° ± 5°.
StairDesigner offers a control function for the three parameters of the tread line (you can see
whether the stair observes these three parameters thanks to the red or green point on the OK
button of the window “stairwell parameters”).
regards
Michel
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