draw a cupboard for motorcycle

[dr1990]

Good morning to all,
I am new on this forum as a registered user but I have been following you for a long time and I have solved many issues of realization thanks to the tips of many users enrolled on this forum. so thank you for the help received in the past.
Today I address myself to you as I can not realize a part of solidworks with simple appearance: a cupboard to mount on the bike.
It is a design that I think is not complicated but I can't find the functions and a way to achieve it. below I attach a photo taken from the web to give an idea of what I would like to do.

​

Obviously I do not intend to do exactly this model, but I have difficulty understanding how to do the various steps to reach something that comes close to it. My difficulty lies in shaping the curved surface and creating the two concavities.
I tried to make the profile seen from above and try to make an extrusion with loft but I did not have great results.
how should I proceed?
Thank you very much

 

[MassiVonWeizen]

almost certainly you have to work with the surfaces, which with the loft is an assaje casino

 

[Meteor02]

I'd say you have to work on surfaces. I am a surface expert and I have quotas but this could be an idea of how to proceed.View attachment cupolino.rar

 

[dr1990]

thank you all for the answers. Now I'm trying to start from the back where it's taller. from them I created many parallel planes by spaceping them and doing some sort of off-set converting the previous sketch made on the new floor. being speculated, I realized only a half of the profile. from there I slightly modified the size. I have created so many plans to bring everything together at one point. so I used the extrusion function with loft and created a nice smooth geometry and I am able to change all the parameters by updating from time to time the finished model from the sketch relative to the plane in question. I mirrored the semi-model and then I emptied the whole thing. below place a photo.
I have never worked for surfaces, I have traveled this way because I am usually working with solid geometries and surface modeling is (at my point of view) "difficult" on solidworks what is easier to achieve with blender.
I attach some photos

 

[volaff]

also the model would not be bad

 

[marcof]

also the model would not be bad

there had been a time ago a Kilometer discussion with examples of modeling, various files and working methodologies just on a motorcycle dome. I think he had left the omnicad forum. in any case do a search here on the forum or via google.

 

[massit78]

can be very useful this dassault tutorial to model airplane spirit of st. louis that has surfaces very similar to your dome
http://blogs.solidworks.com/tech/2017/04/solidworks-lindberghs-spirit-of-st-louis-part-1.htmlin any case being the symmetrical piece, modeling half part with the surfaces: It's easier, then mirror

 

[Meteor02]

If you can do everything with solids it is great but you should do a check with zebra strips, if the surfaces do not turn out classy you will have great difficulties of refraction and distortion looking through the dome.

 

[dr1990]

I did not realize that the attachments had not been loaded. Sorry

 

[dr1990]

the design in question is a very gross draft of what I wanted to do. I think I did the right procedure. the final will certainly not be this. I'll post it if anyone likes it. thanks for support