[Amps] Front Panel Express Help

[Jim W7RY]

I just found it Jim.
Now to figure it out....

73
Jim W7RY


-----Original Message----- 
From: MU 4CX250B
Sent: Wednesday, April 09, 2014 5:58 AM
To: Paul Christensen ; amps at contesting.com
Subject: Re: [Amps] Front Panel Express Help

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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