Blade Flyer
Remotely Controlled Model - Page 1
Protractors used to adjust camber.
After searching for days, I finally realized
prescription glass
frame hinges have the right amount of pressure for supporting the
"brushes" (male servo connectors). I found two at the first thrift
store I visited. With a little grinding and drilling-out one threaded
attachment hole, I was able to secure the arms to one another and
hot-glue them to a mount. I later trimmed the pins (1/8" brass tubes)
to penetrate no further than the outer shroud rib shown with the arms.
Commutator arms open
Telephone cable untanglers as engine connectors.
Commutator arms installed.
The servo connects to a Y-connector I made. It connects to a
server reverser and a straight connector. The male prongs of each
engage the commutator. The servo signal reverser is on top.
The direct connector to the servo is on bottom.
First commutator test - direct to servo on top.
First commutator test - server reverser on top. The connector
"brush" is misaligned
with commutator, because the arm base is too thick.
Commutator connectors again.
Commutator connectors again.
The
servo connectors did not consistently connect with the stripped ribbon
wire, so I cut 0.062" wide slip rings from 17/32" diameter brass tube,
glued paper strips cut from printed rectangles sized to be half the
circumference of the ribbon wire to the rings, cut the rings at the
paper ends, ground the ends, removed the paper, tapered the ends, and
snapped them onto the ribbon cable.
All three slip rings installed on one commutator.
I thought the rings would have to be soldered to the ribbon wire, but
they stick well and conduct to the wire well.
The
reverses work as expected when the commutator is bypassed. However,
they behaved strangely when the commutator was used. I consulted the
source of the server
reverser,
http://www.dionysusdesign.com/.
Even though it was 10:00 PM, they immediately responded.
In the process of conducting tests for them, I discovered
that
the servo reverser is uni-directional. That required me to
fabricate different wiring.
Contact: Bill Holmes via email or 661-305-9465
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