Angle Holes

Compact manifolds, using minimum number of cross drills are often possible using angle drill holes.
MDTools^® is equipped to model, visualize, and design using angle holes.

Let us see how to use the angle drill holes to create connections when designing a manifold with the help of an example.

The figure, ‘Alpha’ - rotation on the surface, displays two cavities, 2-CV and 4-CV, which are connected using angle drill AN1, inside cavity, 2-CV.

1.     Cavity 2-CV is a 2-port cartridge valve cavity.
     Cavity 4-CV is a 4-port cartridge valve cavity.

2.     Port2 of 2-CV is required to be connected to Port2 of the 4-CV valve.
     This connection is made using a compound angle drill AN1.

Note:

·       Alpha angle is the rotation of an angle hole on the surface.

·       Angle holes with alpha angle of 0, 90, 180, or 270 are called Simple Angle Holes.

·       Angle holes with alpha angle other than 0, 90, 180, or 270 are called Compound Angle Holes.

·       Beta angle is the inclination of the angle hole from the surface normal.

·       Alpha and Beta values are the values entered in the MDTools Edit Cavity dialog box.

Alpha - rotation on the surface

Beta - inclination from surface Normal

Alpha angle convention used in MDTools

Note:

The depth of an angle hole shown in the Edit Cavity dialog box is the depth along the axis of the angle hole.