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Advice re riser for winder into stringboard
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John O'Connor

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March 5, 2020 - 8:11 am
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Hi Michel,

Thanks for the explanation.

John

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michel melon
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March 5, 2020 - 7:02 am
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Hi John,

The 3D DXF is the full representation of the parts as the 2D DXF is a technical representation for the build. Risers are mostly not machined. 

The riser you see on the 2D DXF for a step does not contain any angle as there the position and width are key. For the production of the steps, it only needs to travel completely over the length of the step and through the sides. For the stringboards, the width of the riser notch is calculated by SD and represented in the 2D DXF so you know where to cut and at which thickness.

The cutting list is showing the Netto width and length of the finished risers. While assembling the stair the riser angles can be made

with a belt sander ( manual or stationary ) to reach the desired angle. 

You see the angle of the risers on your workshop doc file when looking at the steps. 

There are some machines on the market to make the riser angles but it is the only purpose they have and are quite expensive. (see picture example).

riser-machined.jpgImage Enlarger

So the manual approach unless you have a 4 axes CNC that can do the job is still the best approach.

regards

Michel 

 

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John O'Connor

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March 4, 2020 - 10:18 pm
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Hi Michel,

I’m paying £50 per month for the software so I wouldn’t call it free 😉

I’ve attached two screenshots of the component in autocad from your component dxf. One is top view and the other is front view.

I’ve also attached extracts from the full 3d staircase dxf you sent me where I isolated the same riser and captured the top and front views. The angle the component is presented in the front view is different.

riser-front-view.jpgImage Enlarger

riser-isolated-from-full-3d-front-view.jpgImage Enlarger
riser-isolated-from-full-3d-top-view.jpgImage Enlarger
riser-top-view.jpgImage Enlarger

John

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michel melon
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March 4, 2020 - 8:27 pm
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Hi John,

Can you add a picture on what you see? I guess you are using the free version of stairdesigner and there indeed you cannot see all dimensions and the outputs are blocked. For the rest, it performs exactly the same as a full version. 

regards

Michel 

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John O'Connor

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March 4, 2020 - 10:37 am
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Hi Michel,

I have used AutoCad to look at the risers in the 3D model and can see this now. The 2D dxf’s don’t appear to have this information – they are a 2d view of the face with a line indicating where the angle cut starts i.e. no view from above. I couldn’t see this information in StairDesigner either. Am I missing something? I can’t measure anything within StairDesigner so reliant on the dxf’s for dimensions. I am paying a monthly subscription so perhaps the software is limited?

Thanks for your clarification, 

John

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michel melon
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March 4, 2020 - 5:51 am
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Hi John,

SD calculates the riser pocket in the stringer based on angle and riser thickness. So, in fact, the pocket becomes wider for the riser due to the angle of entry. 

angled-riser.jpgImage Enlarger

In the picture, you can see the riser entry in the stringboard. The riser is here 11.5mm and the pocket in the stringboard ends up to be around 16 mm width. The pocket width is however reduced as the riser gets a perpendicular side to match the pocket depth and avoid a gap in the connection.

regards

Michel 

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John O'Connor

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March 3, 2020 - 1:21 pm
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Just a quick question re dealing with a riser into a stringboard at an angle when the tread is winding. Wondering how you usually deal with that? Mortice at angle, square off ‘tenon’ on riser, or route wider slot?

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