Dyne's LD-F1 (D-O concept) build

[Dyne]

I was particularly pleased to see that someone else uses Milliput on their droids!

I used the terracotta version on BB-5M a few years ago, but that was getting very old so I got some fresh yellow-green the other day.  It worked a treat.

Had to go get some wire and connectors and more paint/primer today.  It's too humid to use it, but it's starting to come together.


Edit: I've also done some config on my radio so everything will control properly once I assemble it.  This is similar to what I was doing with Treadwell, and in fact this model started out as a copy of that one.  Here are the relevant settings...


Inputs:



As with Treadwell, the right stick (Inputs 2 and 4, named RY and RX respectively) controls the tracks.  I have switch SC (the 3-pos switch above the right stick) weighting these inputs to alter the speed of the droid: Slow, Normal, and Fast.

The left stick (Inputs 1 and 3, or LX and LY respectively) controls the head tilt and nod. I've set the left stick's "speed" settings to be controlled by switch SB.  Since this is sent to a servo, it is actually limiting the range of motion to 50, 75, or 100%.  I may change it to alter the servo's actual speed later (which would be set on the Mixer page, so there would only one line apiece for LX and LY, each at 100% weight).



Mixes:



This page is where the magic happens.  As you can see, the first two channels go to the drive motors for the left and right track.  The first four lines perform the tank mixing (adding the RX value to the RY on the left, subtracting it on the right).

Channels 3 and 4 control the two head tilt servos.  These are mixed exactly like the tracks are.  However, since the two servos are oriented 180 degrees from each other, one will need to be inverted.  We will handle that later.

Channel 5 is for the head rotation.  This is currently set on the left potentiometer on the radio.  I had it set on the right (which is marginally preferable since it has a detent for center position), but that one is a little jerky at times.


Outputs:



This page doesn't do a whole lot at the moment.  Mostly it inverts the output of channel 4 so the head servos both move in the right directions.  However, once I get the droid assembled and can check the movement, this is where I will set the min and max values for channels 3, 4, and 5.