How to actually grind angles 15°, 30° and 45°

How to actually grind angles 15°, 30° and 45°
In this video I'm going to demonstrate how to set up to grind 15° 30° and 45° on angled parallels
in this setup I will be using two different methods for the 45° and 30° I will be using a sign bar and angle plate
on the 15° I will be using a vice and assign bar because the angle is extremely small and would be very difficult to clamp using a sign plate
I will also demonstrate how to calculate 15° 30° and 45° setups using a 5 inch sine bar and Gage blocks

[Halflife]

These videos are amazing for a young toolmaker

[rafimex]

Nice videos i love them alot information for some one like me new in this trade

[jorgekariuki]

Thank you for sharing 🙏.. very well explained new insight for me. Can I ask a Q? Kindly

[sto]

3:05 - excellent explanation on how to use a sine bar for arbitrary angles. I thought the last result was a "1" when it should be a "0", but realized you only wanted to draw a box. What happens when using a 1 inch sine bar?

[rafimex]

Is my first year as a tool and die i would like to know how to make my program on mastercamp to make my own angle blocks from 30° to 1° thank you

[DawidKellerman]

Hmm id you did the math with metric it would be the same? You made sine bars really click for me

[rok]

I am rather surprised that you don’t know that the blocks are held together by Van der Waals force.
Not by vacuum and definitely not by friction.
Friction is the force that one surface or object encounters when moving over another. When objects are not moving, friction between them does not exist.

[philcook]

Wringing gauge blocks together has nothing to do with friction.