The Precision Aerobatics Bandit 3D Racer : Build and Fly Log

Started by rcpilotacro, June 10, 2012, 06:18:44 AM

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rcpilotacro

Likewise Karma!
between Addiction X and Bandit, Addiction X as of now,

PS
we have default news channel in all our offices. It is never changed and is shown without audio, basically we watch the ticker tape for any important info. that default has been changed from NDTV to CNN IBN, once ! for a breif moment, caught you looking down (Like 1/20th of a second) :giggle:
Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

Propfella

Hi Gusty,

Nice choice, nice build, nice plane, nice flying. Just one other thing I'd like to add,  ummm, NICE.

So a glider is next on the agenda. I've already finished my Phoenix 2000. The
build was so easy on it, not one drop of glue required. Maiden in 2 weeks but Bixler next week. I'm about to start building the Predator and fitting it out with FPV gear after it's maidened and trimmed out.

Happy flying mate, regards  Stu
"Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind."

rcpilotacro

Thanks Stu!
this voltec servo is killing me! just doesn't center, anyways here is the pic of the flight yesterday! when the rains stopped, we ran to the field and flew our hearts out
Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

sushil_anand

Hangar: Zlin 50L -120, CMPro Super Chipmunk, Ultimate Bipe EP, Imagine 50, Christen Eagle 160, Ultra Stick, Super Sports Senior

Propfella

Hi Gusty and hello Sushil-anand,

Some of the servo can have a poor quality pot in them and a dirty surface can cause intermittent settings. If it was mine I'd be tempted to pull it down, give it a good squirt of a PCB orcontact cleaner. They both come in a spray can and you just drown the electronics and let it sit to dry and put it back together. The main cause of the problem is the potentiometer or variable resistor which is situated under the main drive shaft. Asmall row of "fingers" make contact with a resistive strip and as the servo rotates These fingers make contact with the strip and by the level of resistance the electronics can tell where the servo is in it's travel.

Simple wear from a well used servo can cause problems as can a build up of dirt or occasionally the strip just wasn't applied correctly when built. Using a good contact cleaner is the best remedy only if it's dirt causing the problem. Anything else is just delaying the inevitable and the servo may last a little longer but fail again. If this is the case then it would be better to mark it as faulty and keep it for spare parts.

I must add that pulling the servo down is best done methodically, remembering the way the gears are mounted otherwise putting it back together can tax the brain. When the "pot" is pulled apart check the fingers to see that they are making good contact. If you havea multimeter the resistance can be checked by rotating the main shaft. It should be nice and smooth in it's reading, an intermittant reading will show that this is where the problem is.

The biggest question could be, is it worth it. That depends on the price mainly and do you have the time to pull it apart. Personally I opt to pull them down. Not because I'm a cheapskate but I enjoy fiddling with things to make them work. Only yesterday I pulled a servo apart with stripped gears and swapped the gears for some out of a servo which had a burnt out motor. I saved myself about $3.00 .... maybe I am a cheapskate.

A word of warning, avoid using WD40 or similar and silicone derivatives as these can damage some parts or leave a residue which will gum the works.

Happy flying to you both and best wishes  Stu
"Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind."

rcpilotacro

#55
stu,

thanks for such a good info, yeah in this hobby you got to be cheapstake! in india nothing goes waste, we are exceptional in using what is considered trash by the rest, servo rework is people's pasttime.

However! these are brand new 20$ ea servo.
Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

Propfella

Hey Gusty,I have a question for you. Is there a plane in your Airforce which can carry enough fuel to get to Australia and back. Carry a fair amount of computer, HiFi and other electronic equipment and get you back home before the plane or you is missed.

I have a mountain of gear I'd love to give to the boys over there but I'd have to charter a big plane. I tought that seeing as how you can borrow the keys  could you nip over sometime :-) Our airport is unattended after 8pm at night so you could dead stick it in and no one would know. I'm sure the guys would chip in a few dollars for fuel.

Just a thought  regards  Stu.

Comms on 21.400mhz. SSB
"Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind."

rcpilotacro

Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

Propfella

It was worth a try :giggle:

Seriously, I would like nothing more than to hand this equipment to forum members. Although the equipment is worth a lot of money for some reason the people around here want it for free. I'd rather choose who I give it to and I'm sure it would be appreciated. Unfortunately that's all it is, a thought with no remedy.

I will find out what freight fees are to India. Maybe some smaller items can be sent via mail.

Stu
"Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind."

karma

Thank you.  :salute: :hatsoff:I am capable of sillier stuff while anchoring  ;D i almost walked out of the studio once

rcpilotacro

Karma

nevertheless, you are the best in the gen next at CNN IBN, not because i know you i am saying this, be that as it may, as you asked and for anyone who cares, here is the iPAs link for a 4S setup, Aeroplane, motor, esc, 4S batt, servos and the prop and the works (No VGs and Spinner, you need to get them separately, if you need them)

http://www.precisionaerobatics.com/product_details.php?pid=698

order it online at their website and it should be at Delhi through EMS 4-5 days max

PS
paying through paypal was PIA for me, took me 3 months to accomplish that
Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

rcpilotacro

Converted Bandit to 4S 2200mah setup, 12x6 prop and carbon spinner, due to poor servo centering couldn't fly hard 3d, kissed wing tip twice (not by design) while trying harrier. here my mom posing with the Bandit
Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

AEROVISHWA

sir ...  which are the servos u are  using in this...??

still not able to  decide on  the servos for the skyfury...! its lying as a hanger queen
Aerodynamics are for people who can't build engines.
-Enzo Ferrari

https://sites.google.com/site/vishveshkakkeri93/
HAPPY LANDINGS

shadman_alam

Its 46size ryt.. any high speed servo somewhere about 0.15speed n below are good... All standard servo suits 46size 3d plane.. Try getting digital n metal gear.. For durability.. Im using futaba 3003s on all surfaces on ucando3d 46.. No issues till now .. No blow backs.. I have literally abused it like anything.. But still servos holding firm n precisely centres.

rcpilotacro

#64
Quote from: AEROVISHWA on July 24, 2012, 02:39:49 PM
Which are the servos u are  using in this...??

This aeroplane presently has Voltec servos (http://www.voltecservos.com/vts70.html) 10.7 gms servos 25 $ + shipping.

Will be switching to MKS DS 450, i am told they are good servos, for a 9.5 gms servo they produce 3.22 Kgs of torque, can you believe that ?

Turnigy 16 Gms should do in your aeroplane i guess
Gusty's Hangar and Introduction.

A Good pilot will practice until he gets it right,
A Great pilot will practice until he can't get it wrong.

AEROVISHWA

Aerodynamics are for people who can't build engines.
-Enzo Ferrari

https://sites.google.com/site/vishveshkakkeri93/
HAPPY LANDINGS

akky

hi there gusty uncle try using servos from savox usa... its n upcoming brand....but there servos are damn great for their price....you can compare them equally with hitec....i have been using them myself for 3d n pattern
Arcarious @ Akky.....
I have never crashed while flying....Its the Landing only that gets me....
Happy Landings....&.....Happy Crashings

niki

Hi there,

Very nice build thread, many thanks for the effort sharing your tips!

Right now I'm playing with katana md and can't fit the cowl without leaving a gap between the fuse and the cowl from their left side. I saw how you sanded the motor box edge and I'm wondering is this lowering the strength of the motor box, if I sand mine did I have to do something more to keep the strength? Currently I have enforced it only with the fibre cloth that comes with the kit and epoxy.

Thanks!