3573, 7249, and 3572

[Gerald Lasser]

Sorry for chiming in late here, I still have a HOLD on the part 3573 as the curve is not correct, and needs to be slightly higher

NewElementary is actually not correct here, the curve is not a continuation of the 50950, see the picture of my real parts here:
   

Here is a digital comparison:
- Yellow/Red: Ldraw
- Blue/white: BI-raw data

   

In my view:
- the curve of the 50950-family is pretty accurate to the BI Data
- the curve of the 3572/3 is too far of the BI-model and needs to be adapted to be closer to the BI curve  
     

Here is a comparison including the LDraw 7249 which is closer to the BI-Mesh and which represents the picture I took
   

Both share the same shortcoming that all of the curve slope and slope parts have, the 4 LDU hight lip. The lip is 5 LDU in the BI meshes, which I would not touch

So my way forward would be:
- Keep the lips at 4 LDU
- Keep the 50950-family
- Adapt the curve of the 3572 and 3573 to the 7249

BR