Hi all,
I am trying to remove material from the inner and outer stringer material on 3 sets of helical staircase. Each one is slightly different as the existing landings are installed at differing heights.
Have tried a few different things but each time has resulted in a bad shape, these stringers will be laser cut from 10mm mild steel and rolled. They need to look fairly neat, flowing around the treads as best they can. On the straight sections they are 260mm wide, this can be wider going up around the curved parts and blended back in.
Appreciate any help, apologies if I have not given enough information.
If anyone would like to play around with it I can send the model over.
Thanks
Gary
If you want to cut the excess material away, you can do that using REVOLVE function.
Draw a sketch on the vertical edge face of the metal plate that wraps around the staircase.
Then select that area and the REVLOVE tool.
Select the axis of the staircase centre.
Set the revolve angle to -180 where it says 360 degrees in the little readout, finally pull the UP arrow to lift the bottom edge of the new body to finish on the top edge of the next straight staircase run.
Now you can SUBTRACT the new body from the existing.
Video sample of doing the cut.
The best way is to do the revolve and rise for the first part, and not cut bits away after.
Alternatively you could now do a new body revolved exactly where you want the outer wrapping panel to be and then Boolean them together to leave the part where both bodies INTERSECT
If you want to do the cut away of the part under the staircase, draw the sketch on the other face then do a revolve of 180 degree and pull the shape down to meet the right point.
+180 revolves CCW and -180 revolves CW
Hi Aaron
When I try and cut the inner stringer top sections it goes through some of my holes/treads, so I’ll go back and make them wider and should work just fine. It has worked successfully everywhere else:
Thanks very much for your help and speedy reply!
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