2 replies to this topic

[Cutter]

Here's an alternative method for mounting side rails
to casing. Instead of milling flats on the casing,
cut the 1.500 radius on the rails.

Formula -- diameter of the cutter divided by the desired diameter = the sine of the angle.

1.000 cutter, 1.500 radius, 19 deg 49 min

 

 Radius 3-id=898.bmp   523.74KB   31 downloads

 

 Radius 2-id=897.bmp   523.74KB   25 downloads

 

 Radius 1-id=896.bmp   294.85KB   16 downloads

[nitewatchman]

That's actually what I did also but I did it by coutouring the contact face using a ball nose end mill. I also thickened the block and wrapped the lower portion around the case where the crank axle bores pass through to increase the contact area for soldering. The also allows the case side rails to be tied into the oscillator base.

gary

[Cutter]

Good job Gary,
It makes a real clean look.