Sine Bar
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The primary use of a Sine Bar is to position the part being machined at a precision angle. Setting up a part at a precise angle can be crucial when using a mill or a grinder. The Sine Bar is used in conjunction with gage blocks. Gage blocks are metal blocks that are ground to extremely precise thicknesses. They are made out of a hardened metal material with a high quality finish that resists, scratching, denting, and corrosion.
Procedure
Step | Description |
---|---|
Location
| |
Forming Triangle
| |
Mill Setup
|
Common Angles
Angle of block v. height needed* | |
---|---|
Angle (deg) | height (in) |
5 | 0.4358 |
10 | 0.8682 |
15 | 1.2941 |
20 | 1.7101 |
25 | 2.1131 |
30 | 2.5000 |
35 | 2.8679 |
40 | 3.2139 |
45 | 3.5355 |
50 | 3.8302 |
55 | 4.0958 |
60 | 4.3301 |
*heights are given for a 5-inch sine bar