[Amps] Front Panel Express Help

[MU 4CX250B]

There is a utility you can download from the front panel express
website for designing dials, arcs, and so forth.
Jim W8ZR

Sent from my iPhone

On Apr 9, 2014, at 5:52 AM, Paul Christensen <w9ac at arrl.net> wrote:

>> "Can anyone give me some pointers on creating a 150 degree arc label for a band switch for Front Panel Express? I have a radio switch 86 switch with 30 degree detents. 6 positions, 160-10 meters."
>
> If an actual arc is needed, you can select "Insert Curved Slot" from the menu.  Then select the engraving width/depth (e.g., cutter 0.6mm).  The slot can be rotated, expanded, degrees set, etc.
>
> To set up 30-degree index positions (and optionally with with engraved lines radiating from center), you can use trig functions on Cartesian coordinates. For all switches, I used the switch center hole as the Cartesian origin. Once you decide on the distance to engrave from the switch center -- and you already know the angle, then solve for (X, Y).  Take the computed X coordinate and add it to the the origin's X coordinate.  Do the same computation for the Y coordinate.
>
> When recently solving this for a 2-position switch,  I wanted to take advantage of the switch's locking tab and insert it into a blind hole on the panel reverse side.  So that the position center center lined up vertically, this meant that position 1 is 15 degrees left of vertical and position 2 is 15 degrees right.  Instead of solving by using the actual 30 degree arc, it was easier to solve using 15 degrees.
>
> You're welcome to my panel file if you want to have a look.
>
> Paul, W9AC
>
>
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