The height position of the tool tip is as follows:
R5 parameter edge - bevel height variable - tool radius
Figure 4: Triangle formed by the tool and the bevel
Figure 5: Schematic diagram of the height variable
Figure 6: Radius Variable Schematic
   From Fig. 5 and Fig. 6, it can be concluded that the ball cutter is at the lowest point of the machining bevel when the center of the ball is at point A. At this time, the radius compensation value is the initial value, and the initial value is not equal to the radius of the ball cutter but equal to the ball. The R6 parameter value of the right angle side of the triangle formed by the knife and the inclined surface indicates that as the tool is lifted layer by layer along the lowest point of the oblique side, the tool at each height should be continuously changed with the tangent radius compensation value. The heart continues to move inward, causing the radius compensation value to keep decreasing.
As shown in the position map of the center of the sphere, the change in the radius value can be seen:
Point A: radius compensation value = R6,
Point B: radius compensation value = R6-L1
Point C: radius compensation value = R6-L2
Point D: radius compensation value = R6-L3,
Point E: radius compensation value = R6-L4,
Point F: radius compensation value = R6-L5,
It is estimated that a negative value of the offset value may occur when the distance the ball moves inward and the initial value of the radius compensation value.
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Yongyue cryo vials are made of medical grade polypropylene (PP) and have no endotoxin. They are disposable laboratory consumables specially used for storing biological samples.
The anti-slip texture of the cap and body is easy to screw cap.
The tube cap has an O-ring built-in gasket to prevent liquid leakage.
The cryo tube is suitable for ultra-low temperature refrigerators, and the tolerance temperature is -86~121 °C, and it can be repeatedly frozen and thawed.
In the gaseous state of liquid nitrogen, it can withstand low temperature to -167 ℃.
According to different requirements, there are ordinary grade and PCR grade. PCR grade products are free of DNase, RNase, endotoxin and foreign DNA. Sterilized by gamma irradiation, sterile.
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