RE: AXI Set up   
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version



All Forums >> Electric Aircraft Universe >> Glow to Electric Conversions >> RE: AXI Set up Page: <<   < prev  1 2 [3] 4 5 6 7 8 9 10   next >   >>  

Login
Message << Older Topic   Newer Topic >>
RE: AXI Set up - 1/20/2004 4:58 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		Kelvin,

Good question. The answer is simply no worries at all.

My receiver for this project is the FS5 from FMA Direct and it will be a sidebar in my review. A complete review on the FS5 receiver will be published soon.

The FS5, 5-channel Flight System receiver package represents the leading edge in safe, reliable radio controlled equipment. Equipped with new DSR technology and free Viewer Software, the FS5 receiver protects your aircraft during every phase of the flight!

Combining unprecedented interference rejection, digital servo support, failsafe operation, radio data readout and other groundbreaking features in a small package, the affordable five channel FS5 works with the FM PPM transmitter you already have (or your PCM transmitter set to PPM mode).

Exclusive Digital Signature Recognition (DSR) technology continuously guards against on-channel interference. In the event of signal loss or overwhelming interference, the FS5 instantly moves servos to their pre-set failsafe positions that are programmed using your transmitter and External Switch/LED (or Viewer Software).

Before you take-off, the FS5 scans the airways and detects if someone else is on your frequency before you even turn on your transmitter. If there are interfering signals, the FS5 warns you with a bright LED light. This multi-function LED will also check battery voltage and inform you if signal loss was experienced during flight.

While you fly, exclusive DSR technology continuously guards against interference. You just turn the receiver on and the DSR is automatic. It analyzes the data stream and automatically checks for:


  • positive or negative shift
  • valid number of pulses (and stores this)
  • valid frame length


After you land, the FS5 tells you how your radio system performed during flight. Each FS5 receiver includes free Viewer Software for extended, graphical data readout. While the Viewer Software isn't required for setting up the FS5, it is a great tool for radio system troubleshooting!

_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to Kelvin)
       Post #: 51

RE: AXI Set up - 1/20/2004 9:38 PM   
Kelvin


 

Posts: 30
Score: 100
Joined: 6/5/2002
Last Login: 11/18/2009
From: Frisco, TX, USA
Status: offline 		OK, here's a dumb question. Your Corsair will have 2 aileron servos, a retract servo, and elevator servo and a rudder servo. How do you get the ailerons to work independantly of each other with channel 5 on the retract servo? I thought a 6 channel would be minium.

Kelvin

Hide Signatures

(in reply to Greg Covey)
       Post #: 52

RE: AXI Set up - 1/20/2004 10:18 PM   
Mike Parsons



Posts: 1011
Score: 100
Joined: 5/24/2003
Last Login: 4/3/2009
From: Atlanta, GA, USA
Status: offline 		My guess is a Y harness.

Hide Signatures

(in reply to Kelvin)
       Post #: 53

RE: AXI Set up - 1/21/2004 2:38 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		Kelvin,

In my setup, the ailerons are tied together with a "Y" adapter cable like Mitch suggested. You don't need independent aileron controls on the Corsair.

I should also note that while the FS5 can mask interference issues, you still need to pay attention to such issues. After all, you don't want a situation where you are failsafing around the sky, right?

FMA offers an excellent companion to receiver installation in situtations where you are using long aileron extensions, etc. in an installation. The 605SB servo buffer can be added in-line for each long wire run to the servo. The addition of the FS5 Viewer software and Flight Recorder has given R/Cers the ability to troubleshoot installation and design issues we were never able to see before.

First fly the FS5 with no buffers. When you land, look at the LED, if it's blinking, it will blink out the number of failsafe events you had during the flight. Don't turn power off or the memory will be cleared! Press the button on the FS5 3 times and it will then blink out the number of bad frames you had during a flight. The objective of course would be to install the buffers (at the receiver) until you minimize failsafe events (should be 0 if your radio is in good shape and tuned properly), and/or a low number of bad frames. This will provide you a very definitive picture of RF performance.

The FS5 is actually an extremely precise glitch counter. Of course, if you have a real bad installation, you may get several failsafe events and you could run the counter on the bad frames to it's max which is 256. A clean flight should be somewhere in the neighborhood of 30 bad frames or less. It takes 50 consecutive bad frames to go into failsafe. Also, when you're counting bad frames, long blinks = 10 bad frames and short blinks = 1 bad frame. 10 long followed by 5 short would = 15.

You might be surprised by how much you haven't been able to "see" before this technology!

Attachments
Click to see fullsize image.
Click for fullsize


_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to Mike Parsons)
       Post #: 54

RE: AXI Set up - 1/22/2004 9:38 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		I was fortunite to have a rising young artist, Jaclyn Favro, from the Disney Studios in Orlando paint my WWII pilot figure for me. She used a scheme similar to my AT-6 pilot but added some additional detail for a great looking touch to my Corsair!

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


< Message edited by Greg Covey -- 1/22/2004 9:42:12 PM >

_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to Greg Covey)
       Post #: 55

RE:pilot - 1/23/2004 3:23 PM   
mookie1


 

Posts: 74
Score: 100
Joined: 1/7/2004
Last Login: 4/15/2008
From: Charleston, SC, USA
Status: offline 		Greg, That pilot looks amazing. It's too bad that you have to cut it down to make it fit. It makes mine look like a decomposing corpse. Nice job to the artist.
Also, I am interested to see where you find the batteries end up for proper CG. Please post a pictures ASAP.

Hide Signatures

(in reply to Greg Covey)
       Post #: 56

RE: RE:pilot - 1/24/2004 5:57 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		mookie,

Thanks, I know what you mean as I had to cut my pilot figure down for my AT-6. I was able to cut less off by allowing the pilot's head to slightly press against the canopy. I haven't fit the new pilot in my Corsair yet.

The elevator linkage installed perfectly! All the parts were supplied in the kit.

Attachments
Click to see fullsize image.
Click for fullsize


_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to mookie1)
       Post #: 57

RE: RE:pilot - 1/25/2004 11:24 PM   
bassmanh



Posts: 695
Score: 105
Joined: 7/29/2002
Last Login: 11/22/2009
From: fond du lac, WI, USA
Status: offline 		hello again,
well here is a picture of my finished world models F4-U with the conversion all done. the scheme is from the USS WRIGHT year of 1948. i think it turned out pretty good . i cant take it out to fly since we have a BUNCH of snow and were supposed to get 4 more inches tonight.

Greg, do you think 12 cells would fly this plane ? as i have a bunch of 6 cell 3000 mah packs around from my fast electric boat. also i decided to use a round shipping tube for my battery packs to go into, i just cut it to size i need and epoxy it in and it works well just need a little soft foam to pack around them.

well anyway here is the picture of my completed plane .

P.S. greg if i wanted to use li-poly`s in this plane wich would i need ? i was looking at the thunder power 4s4p 8000 but i KNOW NOTHING ABOUT LI-POLY. what does the 4s4p mean ? do i need more than 1 of these for my plane ? thanks for the any info on this.

mitch

Attachments
Click to see fullsize image.
Click for fullsize


< Message edited by bassmanh -- 1/26/2004 2:54:31 AM >

_____________________________

it landed in one piece ? what did i do wrong ?planes= H9 B-25, H9 Hellcat, Arrow, sky vista, WM spitfire, slowpoke

Hide Signatures

(in reply to Greg Covey)
       Post #: 58

RE: RE:pilot - 1/26/2004 2:13 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		Mitch,

With your 14" prop, 12 cells may be ok.

It looks like we are both almost finished. I couldn't mount my cowl because my prop was out being balanced and I wanted to get the position just right before taking photos. Remind me to give a dissertation on the Jeti ESC set-up for AXI motors.

Ahh, Lithium packs...you're company bonus must have arrived!

A 4s4p configuration means that the pack is made up from 16 cells. The 4s gives you an equivalent voltage to 12-14 NiCd cells and the 4p gives you the 8AH capacity and powerful current delivery.

One of these packs will provide much more power level and duration than your 12 cell, 3000mAh pack.

_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to bassmanh)
       Post #: 59

RE: Rudder Linkage - 1/26/2004 2:18 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		The rudder linkage assembled as easy as the elevator linkage. Since the rudder and tailwheel are turned by a swivel arm, it is important to file a flat spot on the rod where the set screw tightens and use some Locktite to keep it in place.

The supplied snap keeper makes for an easy attachment to the servo arm.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


< Message edited by Greg Covey -- 1/26/2004 2:27:38 PM >

_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to Greg Covey)
       Post #: 60

Charging Harness - 1/26/2004 2:45 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		Once again, I modified a MaxCim Charging Harness to use Dean's Ultra connectors, a 40-amp ATO fuse, and a single battery connection. My hope is that someday this type of charging harness will be sold to R/Cers for easy recharging of the battery packs in the plane. The ATO fuse moves from the Operate to Charge positions to connect the charge jack and disconnect the ESC. This assembly allows me to mount my wing once in the morning of an event and simply taxi into the pits for a recharge after a proper cooling period.

I drilled some extra holes for the motor wires in a position that would not allow them to touch the spinning can and give me the maximum length.

The motor plugs into the ESC and the ESC into the charging harness. The Ultimate BEC is then tapped into the battery connector to feed the receiver and servo 5v.

The UBEC is a state of the art switching regulator designed to convert an input voltage from 5.5v to 35v DC into a regulated output voltage of 5v to power your receiver and servos. The UBEC can deliver a continuous current of 3amps and a peak short term output up to 5amps. This is meant to handle power for up to 8 servos.

A typical 4-cell receiver battery pack weighs 3.2oz so I saved 2.2oz along with the added convienience of not having to worry about re-charging another battery pack.

My control section outside the plane has a On/Off switch for the receiver 5v coming from the UBEC output and the FMA FS5 External Button/LED controls for monitoring interference and voltage level.

The modified MaxCim Charging Harness has a charge jack and 2 positions for the ATO-style fuse; Operate and Charge.

I have used this setup in several glow-to-electric conversions already and it provides the ultimate convenience.

To touch up my exposed balsa from cutting holes, I discovered that the Delta Ceramcoat Acrylics (#2089) Navy Blue paint is a great color match for my Hangar 9 Corsair. The 16-color set was purchased at Michael's (SKU #02 957 5056 0599)

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


< Message edited by Greg Covey -- 1/26/2004 6:29:41 PM >

_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to Greg Covey)
       Post #: 61

JETI Advance Controllers - 1/26/2004 6:02 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		The JETI Advance controllers are a great match for the AXI outrunner motors. When using the AXI outrunners like the 4130 on my Corsair, you can set the controller for Hard Timing mode. Hard timing increases both the motor RPMs and current draw by up to 20% over the default Soft Timing mode. Hard Timing is recommended for all Model Motor's AXI outrunner motors, even for the first flight.

I also turn the BRAKE OFF on my JETI Advance controllers for all my aerobatic planes and scale warbirds. On scale warbirds, you do not want a sudden prop halt to jerk the plane into a possible stall situation. This also seems to always happen when the plane is downwind at low altitude. The free-running prop results in a more graceful drop in power level. More often than not, you can detect the power loss well before the motor is disabled.

To program the JETI Advance controller, it is as simple as setting your transmitter throttle channel to full, turning it on, powering up the ESC and receiver, and listening for the appropriate beeps before setting the throttle stick to low. The new settings will not change after disconnecting the battery pack.

In addition to automatic cutoff and programming of modes, the JETI Advance controllers have temperature overload protection which disables the motor when the temperature reaches 110 degrees C.

< Message edited by Greg Covey -- 1/26/2004 6:04:21 PM >

_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to Greg Covey)
       Post #: 62

RE: JETI Advance Controllers - 1/26/2004 6:52 PM   
bassmanh



Posts: 695
Score: 105
Joined: 7/29/2002
Last Login: 11/22/2009
From: fond du lac, WI, USA
Status: offline 		greg,
sorry to ask so many questions, how do you change the HARD timing of the motor ? my instructions dont say anything about it. i have changed the brake already but im not sure how to change the timing. thanks.

mitch

Hide Signatures

(in reply to Greg Covey)
       Post #: 63

RE: JETI Advance Controllers - 1/26/2004 8:01 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		Mitch,

I looked back a page and noticed that you didn't specify if you had the JETI Advance controller? It is blue like the picture below.

If so, then you simply turn use the procedure outlined above and wait for the first set of beeps to go by. After another 5 seconds, a second set of beeps is your timing mode; 5 beeps for soft timing and 5 double-beeps for hard timing.

These controllers also let you monitor the timing setting on a regular power-up cycle...just wait for the first set of 4 beeps to sound and the second sets of beeps determines the timing mode.

Attachments
Click to see fullsize image.
Click for fullsize


_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to bassmanh)
       Post #: 64

RE: JETI Advance Controllers - 1/26/2004 8:16 PM   
bassmanh



Posts: 695
Score: 105
Joined: 7/29/2002
Last Login: 11/22/2009
From: fond du lac, WI, USA
Status: offline 		greg,
thanks for the info i have the red jeti ESC not the advance blue one i got the one that the guy from hobby lobby suggested now i wish i would have gotten the other one. oh well live and learn.
thanks again for all the info you post it is a great help to us all.


mitch

P.S. greg are going to get to fly the corsair soon ? i cant wait to hear how it flys and the duration with your set up.

< Message edited by bassmanh -- 1/27/2004 5:03:56 PM >

Hide Signatures

(in reply to Greg Covey)
       Post #: 65

RE: JETI Advance Controllers - 1/29/2004 3:43 PM   
mookie1


 

Posts: 74
Score: 100
Joined: 1/7/2004
Last Login: 4/15/2008
From: Charleston, SC, USA
Status: offline 		Here is my Hangar 9 Corsair.

Hide Signatures

(in reply to bassmanh)
       Post #: 66

RE: JETI Advance Controllers - 1/29/2004 5:25 PM   
Crash n BUILD



Posts: 8
Score: 100
Joined: 7/16/2003
Last Login: 4/19/2004
From: South Bend, IN, USA
Status: offline 		We can hardly WAIT to see it! lol! (Picture didn't transmit?)

Dan

_____________________________

____________________________
... and Crash and Build and...

Hide Signatures

(in reply to mookie1)
       Post #: 67

RE: JETI Advance Controllers - 1/29/2004 7:59 PM   
mookie1


 

Posts: 74
Score: 100
Joined: 1/7/2004
Last Login: 4/15/2008
From: Charleston, SC, USA
Status: offline 		Hope these came out.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to Crash n BUILD)
       Post #: 68

RE: Charging Harness - 1/29/2004 8:50 PM   
Crash n BUILD



Posts: 8
Score: 100
Joined: 7/16/2003
Last Login: 4/19/2004
From: South Bend, IN, USA
Status: offline 		Hey Mook!

Looks Beautiful!!! Thanks for re-posting the pics. Purdy!
Being Completely "green" to this sport of e-flight, I've been keeping an eye on BOTH e-flight bulletin bds.
I've learned a LOT over these 6 mos, and I continue to learn daily.
"Thanks" to you and all who participate! Keep up your wonderful efforts.

Dan

_____________________________

____________________________
... and Crash and Build and...

Hide Signatures

(in reply to mookie1)
       Post #: 69

RE: Battery's - 1/30/2004 8:13 AM   
mikeatk@cox.net


 

Posts: 22
Score: 100
Joined: 6/16/2002
Last Login: 10/15/2009
From: Chandler, AZ, USA
Status: offline 		Hello everyone,

This thread is just what I was looking for. I'm planning my first conversion and it's a Corsair. I purchased a Jamara ARF with a 62" w/s and think it might make for a good electric but don't know. I'm planning to use the AXI 4130/16 and Jeti 77 Amp brushless controller but I'm not sure about what battery's would be best?

I asked Hobby Lobby and they suggested three set's of their B2400C8 8 Cell CP-2400SCR NiCad packs for a total of 24 cells. Is that too much weight? Nicad's were recommended for higher power output but if there might be a better choice I'd appreciate knowing.

Looking forward to more info and pictures.

Mike

Hide Signatures

(in reply to Crash n BUILD)
       Post #: 70

RE: Battery's - 1/30/2004 1:50 PM   
mookie1


 

Posts: 74
Score: 100
Joined: 1/7/2004
Last Login: 4/15/2008
From: Charleston, SC, USA
Status: offline 		Forget about the ni-cads. Spend the extra money on ThunderPower lithium-poly's. You will get three times the duration and they weigh less. I have a bunch of old ni-cads, I'll sell them to you because they are worthless to me now. It is these batteries that are making conversions like this possible and have moved the hobby forward at such a fast rate. The ni-cads will work and I understand that it gets expensive but if you can by all means get li-poly's. The Astroflight Lithium Deluxe Li-Poly charger is fast and safe. You will need to read up on safe use of these batteries before using. Good luck. Mookie

Hide Signatures

(in reply to mikeatk@cox.net)
       Post #: 71

RE: Battery's - 1/30/2004 4:18 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		Mookie,

Nice photos! It looks like we are both close to finishing.

Mike,

Welcome! For entry-level electric enthusiasts, I would recommend using NiCd or NiMH cells over Lithium cells.

The 24 cells suggested for your setup weighs 54oz (3.4lbs). My 18 cells weighs only 40oz (2.5lbs). The difference is almost a pound! (or 0.9lb to be exact) This is a significant weight increase.

All,

I'm actually finished except that my CG is 1" forward with the batteries all the way up front. Once I move them back to "zero in" the CG, i'll post some position photos. My fear was that it was going to be tailheavy but it turned out just fine.

Here is my finished cowl mounted on the fuselage.

I rev'ed up the motor just briefly after mounting the prop and it was pretty scary. Too much for indoor current and RPM measurements (picture my wife yelling in the background) so i'll take it outside soon to make the measurements.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


< Message edited by Greg Covey -- 1/30/2004 4:59:53 PM >

_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to mookie1)
       Post #: 72

Balancing the Corsair - 1/30/2004 4:22 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		Here are some photos showing my Corsair balanced at 4" behind the leading edge (LE) with the 18 cells in two packs behind the firewall. The proper initial balance point is 5" behind the LE at the fuselage.

I'm using the Great Planes CG Machine.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


< Message edited by Greg Covey -- 1/30/2004 4:29:18 PM >

_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to Greg Covey)
       Post #: 73

RE: Balancing the Corsair - 1/30/2004 5:40 PM   
bassmanh



Posts: 695
Score: 105
Joined: 7/29/2002
Last Login: 11/22/2009
From: fond du lac, WI, USA
Status: offline 		greg,
it sounds like you were as impressed with the power of these AXI motors as i was .
what kind of wing loading do you have with your plane ? mine is at about 26 oz/sq ft . i say about because i dont have an accurate scale to weigh my plane.right now with my set-up its at between 7.5 lbs and 8.5lbs.

let us know how it flys


mitch
also greg is there any advantage to running nicad scr 2400 cells compaired to the nimhs i have ?
i know theres better power, would that help me with the 12 cells i want to run ? or would i be better off with my nimh`s ? thanks again.

< Message edited by bassmanh -- 1/31/2004 2:02:09 AM >

Hide Signatures

(in reply to Greg Covey)
       Post #: 74

RE: Balancing the Corsair - 2/2/2004 2:15 PM   
Greg Covey



Posts: 4827
Score: 104
Joined: 5/24/2003
Last Login: 11/21/2009
From: Rochester, NY, USA
Status: offline 		Mitch,

Either cell can deliver the current you need for this setup.

I decided to install my pilot after the maiden flight so instead of gluing on the canopy, I made it removable with Du-bro (#525) #2 x 3/8 Button Head Sheet Metal screws.

Attachments
Click to see fullsize image.
Click for fullsize


< Message edited by Greg Covey -- 2/2/2004 2:22:53 PM >

_____________________________

Visit my Web Hangar at www.gregcovey.com/rc.htm

Hide Signatures

(in reply to bassmanh)
       Post #: 75

Page:   <<   < prev  1 2 [3] 4 5 6 7 8 9 10   next >   >>  
All Forums >> Electric Aircraft Universe >> Glow to Electric Conversions >> RE: AXI Set up
Page: <<   < prev  1 2 [3] 4 5 6 7 8 9 10   next >   >>  




Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

Kaango.com Classifieds

3.047RCU1