Posted by dogz85 |
May 20, 2014 @ 11:29 AM | 1,382 Views
UPDATE scroll down, V3
Frame weight is now 158grams without battery. with 1300mah is 278grams.
its also shorter at 120mm long (tpiece to motor) and 160mm wide (motor to motor).
Flight time is about 13min cruising and 10min with acro
Well i got some sunny sky 2300kv motors the other day (to run on the blackout) But instead of swapping them over i decided to make a mini tri.
its a proof of concept atm, just to see if i can get a tri to fly as good as a quad, then the designing can start. aiming for a smallest tri using 5 inch props i can make.
of course it will be for fpv, no point flying something this small line of sight, i would loose it in the sky.
anyways, i got a rotor bits tri mechanism and bolted it together (yeh its heavy) and everything works.
FC is an afromini32, motor is sunnysky 2300kv, esc are 12Afro v1(flashed to new firmware)
EDIT add photo. and some more info
Well its been in the air and flight characteristics are VERY nice after a bit of pid tuning on the yaw axis. Unfortunately it has since hit a fence and the frame split at the t-piece. However as a proof of concept it has sone its job and prototyping can move onto version 3.
All the wires are trimmed to the length and soldered directly to the board (no header pins) the RX is is a Frsky d4r2 with headers removed, jumber direct soldered and ppm direct soldered. The rear ESC is powering the servo (isolated...Continue Reading
Posted by dogz85 |
Jan 03, 2014 @ 04:59 AM | 2,436 Views
Well this is my first entry into the blog, i got sick of seeing nothing here.
this is my i copter, named befor h frames become known to me.
this is made from various parts from Rusty's shop, although many are no longer available. I am pretty sure its unique, i have not seen a design with a single 12mm carbon rod as the centre spar.
This copter is probably the best flying copter i have, not to mention the most crash resistant. the design has a 'breakpoint' the central boom with break at the join with the motor arm. when this happens i just reinsert the carbon rod and the copter becomes 2cm shorter. i get at least 4 breaks befor i need a new central spar and i still have a length e of carbon rod that is useful for other things (like the motor arms).
also the motor arms will twist in a crash. it just seems that after it has it the ground all it takes is a few twists and its back to 100% straight and stiff for flying.
as of this post,
current electronics are unflashed turnigy plush 12a (yes a copter that flies well unflashed!)
multiwii paris air flight controller + gps
KEDA 20-28 motors
frsky receiver (don't remember the model)
3 cell bat from 2200mah to 3000mah or 4cell 2200mah to 5000mah
I must give many thanks to this copter, it endured 16 months of me learning to fly like worthox. I still can't fly like him, but i can say after 16 months of over an hour of flight time per day with this copter i can do almost any trick in the book and if i see...Continue Reading