At the end of the 21st, Wanli was entrusted with the design of RTX 4090 graphics card. The customer mentioned two words: tank and hale and hearty. From appearance to structure, considering the process and cost, I revised it several times and finally changed it to an amazing green. After many persuasion, it failed. It can only be attributed to my lack of deep understanding of the market.
I thought the customer was at the top of the mountain, but he was in the atmosphere. The sales volume of this product was surprisingly amazing overseas, so the design of the 4080/4070 at the back was green to the end....
In the design, the cost is relatively dead. In the structural design, I firmly do not use die castings based on the concept of saving energy and saving energy. At the beginning of the design, I decided that the theme was Cyberpunk style (Cyberpunk was 2077 popular that year, and it was hot), and I named it "Cybertank.
It is worth mentioning that in the light, in order to achieve the effect of liquid and want to save money, I thought of using a level meter for decoration. The light is very Cyber-like when it lights up. There is another unexpected gain in this design, that is, it can also assist horizontal installation, which is very useful on the supercomputing platform. Many customers praised it, and the two levels also used three models...

After getting the drawing and design requirements of the heat sink, the advanced structure analysis roughly draws the frame, and pays attention to avoiding the position and setting the range that can exceed the board to facilitate the following design. Because it is a 4090 series, there are no too strict requirements on the thickness and width, which is more conducive to the appearance of the play.

After the appearance design is completed, some simple and fast rendering will be carried out to facilitate customers to make suggestions. Among the three color matching, customers have a special liking for green. There is no way to continue the structural design.

In the structural design is very simple, mainly add some columns and card wire slot, for some processing complex details to delete or modify. The edge of the sheet metal is bent many times, resulting in the joint with the plastic is not very tight. Several R-angle modifications have been made here to achieve the close fit of the finished product.
At this stage, the case is basically over, and the rest is to render several final renderings to the customer.