Hi All,

So I created this tapered baguette gemstone by measuring a real one:



I'm trying to make it solid but am unable to. I thought I'd try using lines joined together to make a facet and then planar the surface but that doesn't seem to work either.

Could someone please point out what I'm doing wrong?

Many thanks in advance!

Gunter

Hi Gunter, some of the facets are 4 sided regions but they are not planar, so that's why Construct > Planar isn't able to do anything on those.

Probably the easiest way to generate it without tuning up it up to be all planar would be to use join together these pieces to make 2 closed curves:



Then use Construct > loft which will build about half of it like this:



Now join these 3 pieces:


And these 3 pieces:


And then Construct > Loft between those 2 curves to get this:


Repeat that on the other side and use Edit > Join to glue it together into a solid.

- Michael

Hi Gunter, or another way is join up these 3 segments at each corner:



Select the 4 corner curves:



Run Construct > Loft and set loft options for "Loft style = Straight" and turn on the "Closed" checkbox:





Then the top is planar so you can finish it by selecting the object and run Construct > Planar, it will fill in the top.

- Michael

Michael, this is awesome, thank you very much!
Kindest,
Gunter

You have also the other solution to make like a real gem builder! ;)

Take a box so yet a solid and make some boolean diff! ;)

You will be sure to have a solid!

HI gunter
我想，使用网格曲面可能是最快的方法（GIF是完整过程的演示，如果我对命令的位置更熟悉，可以更快），当然这需要对网格的曲线的选择有一定的理解，将对象拆分成一个个封闭的平面，使用平面命令是最好理解方式。
I think using mesh surfaces （network）may be the fastest method (GIF is a complete demonstration of the process, and if I am more familiar with the position of commands, it can be faster), but of course, this requires a certain understanding of the selection of mesh curves. Splitting objects into closed planes, using the plane command is the best way to understand.

Thank you Pilou!

Thanks for your help Suiyan