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martenHSQLD
823 Vistas, 3 Respuestas

curved glass railing

Hi Guys,

 

I'm relatively new to autocad, self taught.  I do glass railings, and I've mastered using 3d autocad to layout and design my flat panels, but now I'm trying to do curved stairs.

 

The fabrication company needs a flat dxf with a separately specified radius.

I use a total station to shoot the nosings of the stairs. 

I'm working on a trial design to get the workflow figured out before I quote one that's coming up.

1) to model the stair rail, am I best off to do a helix starting from the bottom of the stair to the top of the stair, copy it to make the top edge of the glass, and then use that, or make a cylinder and slice away the non-stair portions

2) is it possible to make a helix based on 3 or 4 points, like you would an arc?

3) If I create several arcs based on different nosings on my stair, is it possible to get the program to make a best fit line, so I get the best arc that is the closest fit for all?

4) once I've designed the glass in the curve, how do I unroll the panel along the radius, to get the flat panel the glass company needs to cut.  From what I've found in my searches, it sounds like I may have to invest in autocad inventor for this.

 

Thanks in advance