Mode Zero

The Micron 'Elf' is quite an unusual set in that it was a late arrival on the S/C scene and consequently Micron only sold about a hundred units. It was sold as a kit for home construction, as can be seen from the advertisement.
This one was kindly given to me by Phill Wigley and had long ago been hastily refitted with the board from an Acoms 2ch car set, the original Micron electronics lost. From that aspect it was ideal for conversion to 2.4g, which I've done using a Frsky DFT transmitter module (in V8 mode) and a V8R4 receiver which is lost inside the original Elf receiver case!
The encoder is the Digimac 1+1 with the throttle button left unconnected.
This is a true recreation of the original set which was strictly single-channel, it drove one proportional servo with no option to expand. The servo would typically be used for rudder in a model plane or boat.
Uniquely the transmitter didnt send PPM but instead was directly modulated by a standard PWM servo signal. In effect, it was like a servo tester via an RF link. The AM, single-conversion 27mhz receiver had no decoder as there was only one pulse per frame, and hence nothing to decode, its output a standard 1-2ms servo pulse.
After almost 45 years this set is again destined for the flying field, probably in a Veron Impala rudder-only slope soarer. It would also be ideal for a small diesel or Babe-Bee powered S/C model. Far better it spends the rest of its days 'out there' than on a collectors shelf!
Cheers
Phil
. . .

Hey Phil,
If they are only £17.95 I'll take one...or twenty


Ron

My old Micron ELF replica was upgraded by two black sides with the typical four holes for more accuracy. I think it looks much better now.
An even better replica with a 3D-printed case is 50% finished. Frank

Brilliant Frank.

It makes a big difference having the 4 holes on the sides.
Will you be sharing the print files on the forum?
I think it would be a popular project.
The elf is on my list of to-do’s. I just need to find a suitable stick unit first.

Ron.

Of course Ron, if it is of interest to somebody, I will post it.
Here are the OpenSCAD- and stl- files for the side panels above. The print files for the next ELF replica will be posted, when the transmitter is finished and I know, that everything will fit properly together. Frank

Another Elf replica is finished with a 3D-printed case. It has the same features as the old Elf replica plus low voltage and inactivity buzzer, and it has a changeable Futaba style HF-module.
For those, who would like to give it a try, the OpenSCAD and stl-files are available in the 3D-files section. Frank

Another top job Frank! Thanks for sharing

Does this use the ATtiny sketch you posted previously?

Thanks Wayne,
yes, it´s the same sketch.

Frank

As usual Frank,
A very nice job on the Elf.
Looking forward to the flight report

Ron.

Thanks Ron,
I will be on vacation the next two and a half weeks, so test-flight will be after that.

Frank