Rhino 3D - clerestory roof

[Overseer]

Mick,
looking magnificent; I'm glad you dropped the top inside corners. I think they used a slightly smaller radius for the corners.

The Rhino steps to produce the roof would be:
View attachment 81870
The two pink curves are the rails that the green surface is going to sweep along, so five curves drawn, three of which are joined to make the surface.

View attachment 81871
The Sweep 2 Rails command involves selecting the two rails, selecting the surface and then pressing enter. The view is shaded as I don't use the render view as it slow's things a little and is rather dark. The highlight on the right doesn't exist when viewed from other points.

The new London bus was designed in Rhino which possibly explains all the curves on it!

Simon

Sorry to Mickoo for a diversion from his thread. Simon, would you be able to do a brief step by step procedure for how you would tackle a clerestory roof end for 3d printing in Rhino? For something like these carriages - the clerestory rolls down to meet a straight curved roof (early ones were arc, later were elliptical. The thin edge with ribs would be good to include.


I have had Rhino for years but use it so rarely that I haven't progressed beyond beginner. I blame using AutoCAD most days but only in 2D. I gave up on 3D AutoCAD after finding it couldn't generate a template for the intersection of a hyperbolic paraboloid roof with a curved wall, and wrestling with alterations to drawings during a project. Very impressed with Mickoo's work though.

 

[Brian McKenzie]

Fraser (Overseer),

Have a look at this video tutorial for 'Bridging Curves' in Onshape (from 8:25mins). OK, so it's not Rhino, but many 3D packages work in a fairly similar manner, and it might just help turn on a light in your clerestory. Creating Curves in Onshape

I'm also impressed by Mickoo's good work, dedication and perserverance in using AutoCAD for solid modelling (and similarly with Big Train James detailed instruction for same). But the wearing of Autodesk's hair shirt is just flagellation when the cool of tee shirts can be had with other softwares devised specifically for this work (with some packages for free).

-Brian McK.

 

[SimonT]

Fraser,
let me have a ponder and I'll put something up (I'm deep in Hall valve gear at the moment). I learnt Rhino from the Infinite Skills video training DVD's - https://www.amazon.com/Learning-Rhino-Training-DVD-Tutorial/dp/B006UGY0XQ. They include lots of tutorials and exercisies. I still go back to them to refresh. There are supposed to be good training packages at McNeel but I have yet to try them.

Simon

 

[Overseer]

Thanks Simon. No rush. I don't think I need a detailed tutorial, just a list of steps with the tool to use would be very helpful. I have drawn things in Rhino but the tools don't always work the way I expect them to so I am not efficient at all. I get monthly emails from McNeel with all their training sessions etc but never seem to have the time to spend on learning it.

 

[SimonT]

Fraser,
how about this?

Draw a set of axis and set a CPlane on the end. On the CP draw the roof arc, offset the curve as required for the thickness of the roof and then draw the ends of the panel. Join or better Connect the four curves to give you an object to extrude.

Extrude the planar curve, straight to end of you axis. This axis, of course, is the length of the roof. Switch the roof off by a centre click and the extinguished light bulb. I am staying in perspective but for the next step switch to front view.

Draw the top line of the roof from the front and join the two curves. From the right copy this roof top line down and across to form the outer side of the clerestory. Make it into a closed shape. Mirror the shape to form the other side. If both sides are the same leave this until you have a complete side and then mirror the side

Make a copy of the roof shape in another layer and switch off the original layer. Draw lines for the outer edge of the clerestory and make a closed shape as in the dark blue.
To make the roof use the Sweep 1 rail command (under surfaces). The green roof line is the rail, the dark blue closed curves are the cross section curve.


Extrude the clerestory side to the desired depth.

Switch everything back one and you have this. I always have a layer called Used 2D where I keep the 2D shapes used to make the model. When you need to redraw you have something the work from rather than a complete redraw.

Hope this helps

Simon

 

[SimonT]

Mick,
thanks for the Hijack.
Simon

 

[Overseer]

Thanks Simon. Looks great. I will have a go over the weekend and report back.

Maybe Adrian could move these posts into a new Rhino 3d thread.

 

[adrian]

Maybe Adrian could move these posts into a new Rhino 3d thread.

A good suggestion - I hope this is ok? Any problems then please let me know.