https://www.avient.com/sites/default/files/2020-10/2020-gravi-tech-design-guide-.pdf
Draft on the inside of the boss should be 1/2°, with a 45° chamfer at the top
It will need access to both top and bottom for assembly, and it needs locking
figure 48 above, the optimum velocity is where the plotted line crosses the black
https://www.avient.com/resources/safety-data-sheets?page=5719
MC-84631PETG BLACK/BLACK
MC-86815AB M140 BLACK
MC-87057PP BLACK
https://www.avient.com/resources/safety-data-sheets?page=4480
SILCOGUM BLACK 016
SILCOGUM BLACK 036
SILCOGUM BLACK 233
https://www.avient.com/resources/safety-data-sheets?page=4854
PREC BLACK 8%
PREC BLACK 10%
PREC BLACK 14%
https://www.avient.com/resources/safety-data-sheets?page=5180
1200 A BLACK 11 A
1200 A HS BLACK 13 A
1204 HS BLACK 13
https://www.avient.com/resources/safety-data-sheets?page=656
PC-17MCF/000 BLACK
MB1952 BLACK
MB2292 BLACK
https://www.avient.com/resources/safety-data-sheets?page=6810
BLACK NEP V2
BLACK NEP V3
BLACK NEP V1
https://www.avient.com/resources/safety-data-sheets?page=4464
SILCOGUM BLACK 017A
SILCOGUM BLACK 095
SILCOGUM BLACK 223
https://www.avient.com/products/polymer-colorants/fiber-colorants/renol-fiber-colorants
Deep Jet-Black Shades for Textiles
Deep Black for Polyester Textiles
Renol™ Fiber Colorants Deep Black Colorants for PET Fibers
https://www.avient.com/resources/safety-data-sheets?page=4485
SILCOPAS BLACK 35911
SILCOPAS BLACK 37561
SILCOPAS BLACK 39861