I just try to mdelise a skateboard in rhino.
I explain you how i think it should works…but sadly…not…
First, i was drawing in top view the 2D drawing of the board.
After, i was drawing the curve for the concave of the board, and the curve for the kicktail of the board, that is made with two lines, i joined.
Here it is:
After, i used the fonction: Surface → Sweep 1 rail like this:
I selectionned the 3 concave curves of the board i duplicated: one at the front of the board, one at the middle of the , one at the end of the board, that is located at the end of the kicktail
And i selectionned, after, the curve along the skateboard tha has the kicktail.
And, i had this form:
But, this is an “open polysurface”.
And this is my big problem, because i thought, after this, that i could extrude this form at 1.106 cm, to do the thickness of the board. And after, extrude with big thickness my 2D drawing of the board that is the first picture here, in order to do a boolean substraction of the two volumes, that should give the skatebaord i want. But, as i have a “polysurface” after i sweeped one rail, i can do nothing with this! So, could you please tell me now, how can i convert this open polysurface into a closed one, in order to extrude it?
I tried too another solution: to do the section of the concave, in order, after, to extrude it, like this:
…but when i try to extrude this, sometimes i can’t, and when i can, it’s an open polysurface, and even with the fonction “CAP planar hole”, it doesn’t works…
Can you please help me?
Thanks so much!