How to use 3D solid to build a slope sink like the image?

[YUKIdesign]

[Renerabbitt]

9 minutes ago, YUKIdesign said:

Subtract the solid pyramid tool, then convert it to a symbol, stretch it in its width, then convert it to a sink symbol

[YUKIdesign]

Thank you! Will try it : )

[YUKIdesign]

Thanks Renerabbitt

I make the symbol and stretch it in its width already. How can I convert it to a sink symbol and I try to use subtract again to make the hole, but couldn't success. What did I do wrong?

[YUKIdesign]

I found it! Thanks again