Creating any useful miter angle with Parf MK II created MFT

[Pant]

Because Parf MK II allows to offset any hole with as little distance as 32mm from another you can create preset hole configurations to cut at useful miter angles. Normally with only 96mm spacings only 90 and 45 degrees are reasonably available (and 30/60 with the isometric setup).

For example you could place dogs (or fence against dogs) 5 96 spacings to left and 5 96 down to create a 45 degree cutting angle.

Examples:

approximately 15 degrees (14.995): 96 * 9 + 32 offset horizontally, 96 * 2 + 48 offset vertically.
approximately 22.5 degrees (22.521): 96 * 6 + 48 offset + 32 offset horizontally, 96 * 4 + 48 offset + 32 offset vertically
approximately 30 degrees (30.005): 96 * 11 + 48 offset + 32 offset horizontally, 96 * 2 + 48 offset + 32 offset vertically

Visual example of the 15 degree example (each - is 32mm, . is 16mm, x is where you insert dogs (and bump fence and work piece against):

()-()---()---()---()---()---()---()---()---()---(x) |      |
-                                                  |      |
-                                                  |      |
-                                                  |      |
()                                                  |      |
-                                                  | RAIL |
-                                                  |      |
-                                                  |      |
()                                                  |      |
-
.
(x)

I have the code to calculate configuration for any angle, seehttp://jsfiddle.net/6y8xohun/show If your table is smaller than above examples, the "app" suggests alternative configurations that lose some precision in the approximation of the angle but can be implemented in smaller space.

 

[Freedj]

This is a really clever solution.  I’m having trouble imagining how to get a 48mm horizontal offset though. Do you just put a 48mm spacer against the horizontal dog?

 

[Pant]

After you have a complete 96mm arrangement of 3mm holes you can start creating 48mm and 32mm offset colums and rows using the special 32/48 holes in the parf mk 2 ruler sticks. The new parf revision dogs could be used if your table already has 20mm holes. Are you unclear on how to use the 32/48 specisl holes in the parf sticks?