HOW TO USE A SINE BAR / PLATE
- To set an angle on any sine device, whether
it is a sine bar, sine plate, compound sine plate, or other sine tool, you must first
determine the center distance of the device (C) and the angle you wish to set (A).
- Next, you must look up the 'setting
constant' in the appropriate table.
sine tables provided in this booklet are the basic sizes needed to set an angle on most
sine products. For center distances other than those sizes listed, use the appropriate
multiple of the constant determined from the basic chart.
For example: to obtain the constant needed
to set a 15 degree 12 minute angle on a 10" sine plate, look up the constant in the
5" chart and find 1.310946". Multiply this by 2 and the result is 2.621892"
- After determining the appropriate constant,
assemble a stack of gage blocks (G) equal in size to that constant.
- Place these gage blocks under the gage block
roll of the sine device, and the desired angle is set.
- Tighten the locking mechanism on those
devices that have one, and you're ready to go.
Metrology 130 Liberty Street Painesville, Ohio 44077
Phone: (440) 354 6436 Fax: (440) 639 9983