RR Rated M For Mature
HOME   rrTV-PHOTO   GALLERIES   MY GALLERY   HELP-FAQ
myHOME PM pmRR MEMBERS 454 ONLINE 18 EVENTS SEARCH REGISTER  START HERE
 
25 pages [ <<    <     21      22     ( 23 )     24      25     NEXT    >> ]34337 viewsPOST REPLY
Mikado Modellhubschrauber . Futaba-RC . Boca Bearings

.
.
e-New & Emerging Electrics > EP 400 Build Thread
 
 
dkshema
rrMaster
Location: Cedar Rapids, IA

My Posts This: Topic  Forum

Update. I have two Hirobo Lepton tail booms in my shop now, 15mm diameter, 455 mm long.

I finally found a source for S2M drive belts to allow me to stretch out the heli to run 305 mm, 315mm, and 320 mm blades. With some luck, the belts will be in my hands in about 3 weeks.

It took quite a bit of hunting and finagling to round up these Mitsuboshi belts, but with a little persistence, I've managed to find a rep in the states that can get me the parts I need.

I hope to be able to report on the stretching exercise beginning 3 to 4 weeks from now.

Will keep you all posted.

-----

* Making the World a Better Place -- One Helicopter at a time! *

Dave
01-13-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
ronwilliams
Heliman
Location: 1954 springhill church rd. ringgold LA.

My Posts This: Topic  Forum		400 ep

thanx for the info..............RON
01-13-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Qooo
Senior Heliman
Location: Hong Kong

My Posts This: Topic  Forum		Dave,

Like to read your report of a longer boom and longer blades. Is the bell expensive? Where did you get it? I think I can easily get the Lepton boom in Hong Kong but I don't know if I can get the bell ...

Thanks for sharing.

DX7 - FREYA EVO90 SWM - LEPTON EX - T600E - Thinking 9303 2.4G
01-14-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   HOMEPAGE   GALLERY
 
 
dkshema
rrMaster
Location: Cedar Rapids, IA

My Posts This: Topic  Forum		The belts are something like $1.80 each. But they're coming from Japan via air, shipping is going to be $30. Six dollar's worth of belts, $30 to ship them. Go figure.

I did find one other place that after about a week of me hounding their entire company with emails, answered one of my emails...they would charge me $11.80 per belt, the lead time was still 3-4 weeks. I went with the first guy, a Mitsuboshi belt rep in the states, as once I found them, were very responsive to my request.

Will keep you posted on what works, what the boom lengths need to be,and what the belt part numbers are when I get things going.

-----

* Making the World a Better Place -- One Helicopter at a time! *

Dave
01-14-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
Laurens
Key Veteran
Location: Oegstgeest, NL

My Posts This: Topic  Forum		Can you guys recommend me one of the XP's?

TeamFlightpower, Team Flighttech
02-06-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
dkshema
rrMaster
Location: Cedar Rapids, IA

My Posts This: Topic  Forum		I like the XP I've got. It flies and feels much like the bigger Calibers. I started out with the stock EP400, then bought all the parts necessary to upgrade it to the XP version just before Christmas. The XP is a nice little heli. I don't know what you're looking for in a small electric heli, but the XP is first class quality all the way, and flies nice.

I plan on stretching the tail boom so I can run longer blades as an experiment. I've got the belts on order but can't get a confirmation out of the distributor as to whether they are actually on their way.

-----

* Making the World a Better Place -- One Helicopter at a time! *

Dave
02-06-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
Agustapower
Heliman
Location: Cincinnati, Ohio,USA

My Posts This: Topic  Forum		Caliber 400xp

I just finished my Caliber what a nice model.
I used JR 285 servos on the cyclics and pitch and they fit perfectly almost as if Kyosho designed the mechanics for them!
Everyone that has seen the model really likes the layout and the quality of this heli puts all the rest to shame in my opinion.
Now if the snow would just quit I could get some quality flight time on it.
Bob
02-07-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Laurens
Key Veteran
Location: Oegstgeest, NL

My Posts This: Topic  Forum		I'm looking for quality Dave

TeamFlightpower, Team Flighttech
02-07-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
dkshema
rrMaster
Location: Cedar Rapids, IA

My Posts This: Topic  Forum		After much wailing and gnashing of teeth...

...the people I ordered my S2M drive belts from tell me that they should have them in hand tomorrow -- Feb 26th. If that happens, I should have them in my hot little hands about mid to late week.

And when they arrive, I can start working on the stretched EP400XP. I have all the parts I need, except for the belts.

With some luck, the belts will get here, I can whip out a couple of different length tail booms, and the weather will cooperate for some test flying.

-----

* Making the World a Better Place -- One Helicopter at a time! *

Dave
02-26-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
dkshema
rrMaster
Location: Cedar Rapids, IA

My Posts This: Topic  Forum		Not much has been happening with my EP400XP stretch experiment. I've been trying since January to get two each of three different length S2M timing belts from Japan so I can run longer tail booms.

I've been promised that I'd have the belts by Feb 26th, March 13th, and just this evening am told the belts have made it to Ottawa and will ship out to the states tomorrow. To think that I was told the belts would ship air freight from Japan (for a $30 shipping fee), and here nearly three months later, I still don't have them, is a bit frustrating.

If what I'm told THIS time is correct, I might see the belts finally in my hand within a couple of weeks. I hope I see them a lot quicker, but I'm not holding my breath as to when I'll actually hold the belts my hands.

I'll post additional information as soon as I have some stretch pics and test flight results.

-----

* Making the World a Better Place -- One Helicopter at a time! *

Dave
03-22-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
dkshema
rrMaster
Location: Cedar Rapids, IA

My Posts This: Topic  Forum		Finally. At last. After nearly three months of waiting, the S2M timing belts arrived.

Wee Haw.

Now the stretch experiments can begin. Time to whip out the tools, cut up some tail booms and see what happens. I'll post results as I get them.

-----

* Making the World a Better Place -- One Helicopter at a time! *

Dave
03-22-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
dkshema
rrMaster
Location: Cedar Rapids, IA

My Posts This: Topic  Forum		The first shot at stretching the EP400XP has been completed:

Mavrikk 320mm blades, tail boom approximately 380 mm long. Rotor diameter is 720 mm, the length of the heli from tip of the canopy to tip of the tail case is about 630 mm.

Here is a shot of the completed conversion:



A second shot:



An overhead comparison between an original (short) Trex 450X-V2 on top, a new Trex 450SA in the middle, and the stretched EP400XP on the bottom:



More good news. I took it outside about 10:30PM to give it a hover test. Though it's a bit tail heavy now (I can move the TR servo forward with a longer pushrod), it hovered pretty well. The bad news is that it was raining, a bit windy, and dark (flying in the light of the porch light only at night).

Bad news, though. I had the heli sitting on the floor for a couple of minutes, unattended to go get my camera. When I returned, I discovered that one of our cats had decided to taste test the brand new Mavrikk 320mm CF blades. She chewed the tip of one of the blades, leaving a broken tip with a 1/4 inch hole in it. #$%&%*@$ Cat! So, more flight testing is not going to happen until I get a new set of blades in the house.

I got about a minute's worth of hovering, and in spite of the rain, wind, and dark, the heli felt pretty solid in the air. I'll get another set of blades, cross my fingers for good weather soon, and get some flight testing done.

-----

* Making the World a Better Place -- One Helicopter at a time! *

Dave
03-23-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
dkshema
rrMaster
Location: Cedar Rapids, IA

My Posts This: Topic  Forum		Hooray. The new blades arrived a couple of days ago. I checked their balance, then put them on the stretched XP. Yesterday afternoon when I got home from work, I took the heli out in the front driveway and hovered out a battery, and did a little forward/reverse flight up and down the sidewalk that runs in front of the house.

The first thing I noticed is that I've got to change my pitch and throttle curves. The additional lift from the larger rotor disk is very noticeable. The handling characteristics of the EP400XP don't appear to be adversly affected, the heli now feels even more like its bigger brothers in the air.

The Just Go Fly 450TH is having no problem at this point spinning the larger disk.

I am anxious to get out in the wide open and fly the pants off this new bird.

One thing that's going to be necessary is to change out battery packs. I currently have a Thunder Power Pro Lite 2100 mah 3S pack up front, which worked quite well for the stock XP. With the longer tail boom, I'm now a bit tail heavy.

Sone of that can be corrected if I get a longer pushrod for the tail rotor control. Using the one that comes with the XP forces me to move the TR servo away from the main frame quite a bit. If I could move the servo back in towards the frames, it would help the CG problem.

I need about another 25 grams of weight in the nose. The TP pack weighs in at about 140 grams. I've got a new pack for my Trex SA from Heliproz. It's a"YT" brand and weighs about 180 grams which would make the bird nose heavy. If I can find a 3S 2000+ mah pack, good for 18C or more that weighs in the neighborhood of 160 grams, I can balance out the chopper without having to add plain dead weight.

The cyclic and collective controls seem to be working well under the extra load placed on the head by the larger (and heavier) CF blades.

I'll continue to post test results as I get a chance to fly the stretched heli.

-----

* Making the World a Better Place -- One Helicopter at a time! *

Dave
03-31-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
Lil_jonnnny
Heliman
Location: London

My Posts This: Topic  Forum		Hi all, i have the Kyosho Caliber 400 with a Align 420LF Brushless motor (it's the motor that came with my Align T-rex 450XL)

The pinion that came with my caliber for the Standard motor wouldnt fit into the Align 420LF Brushless motor.

So can i just ask, what size pinon should i use...From what copmpany...where can i buy it?...do you know wat shop i could order it from which is in the United Kingdom...if not just give me a link PLEASE.

Thanks
Jonathan
04-06-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Dwight
Senior Heliman
Location: West Chicago, IL

My Posts This: Topic  Forum		The pinion that you will need is a 64 pitch with an 1/8 shaft size. Robinson Racing makes them and most hobby shops carry them in the car section I have attached a chart that shows your gear ratio and head speed based on 3200kv.

Pinion Gear Ratio Head Speed Head Speed
Size Unloaded Loaded

20 17.59 2020 1717
21 16.75 2121 1803
22 15.99 2222 1888
23 15.29 2323 1974
24 14.66 2424 2060
25 14.07 2525 2146
26 13.53 2626 2232
27 13.03 2726 2318
28 12.56 2827 2403
29 12.13 2928 2489
30 11.73 3029 2575
31 11.35 3130 2661
32 10.99 3231 2747
33 10.66 3332 2833
34 10.35 3433 2918
35 10.05 3534 3004


I would recommend somewhere in the 24 to 30 depending on the type of flying you will do. Unfortunately the chart does not display right but you should be able to figure out the columns.

Dwight
04-06-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
Lil_jonnnny
Heliman
Location: London

My Posts This: Topic  Forum		How would i know if it would fit a 1/8 shaft? As on Tower Hobbies it doesnt say the shaft size.

Would this work?...
http://www2.towerhobbies.com/cgi-bi...p?&I=LXEZ28&P=0
(BUT I DON'T KNOW IF IT WOULD FIT MY BRUSHLESS MOTOR'S SHAFT)

If not that one, can you give me the link to the right one?

Thanks
04-06-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
Dwight
Senior Heliman
Location: West Chicago, IL

My Posts This: Topic  Forum		That is the one. Most of the Robinson racing pinions are for 1/8inch shaft.

Dwight
04-06-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
Lil_jonnnny
Heliman
Location: London

My Posts This: Topic  Forum		Does anyone know where i can get this in the UK? I've looked on google but all the shops are in the US.

Thanks
Jonathan
04-07-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
dkshema
rrMaster
Location: Cedar Rapids, IA

My Posts This: Topic  Forum		If you can find a hobby shop in your area that caters to RC Electric Cars, 64 pitch, 1/8th inch bore pinions seem to be a fairly common size.

The Robinson Racing pinions work great, and are available in a good range of numbers of teeth.

HPI Racing also makes 64P, 1/8th inch bore pinions in similar tooth-counts.

-----

I'm using a Just Go Fly 450TH motor in my EP400XP, it's rated at 3000 KV and I'm having excellent results using a 32 tooth pinion.

-----
I see that you're located in London, I did a quick web search and came up with 29 listings for hobby shops in London...

http://www.yell.com/ucs/UcsSearchAc...rchType=advance

Be careful clicking on some of the links that show up on this search. It appears that some of the shops may not have kept their domain name payments up-to-date, and as a result, their sites have been taken over by some rather unsavory links...

The individual listings at least have telephone numbers and addresses listed.


-----

BTW -- I'm still waiting for weather here to calm down so I can test fly the stretched EP400XP. Of late, we've had temps in the low 30's during the day, and winds in the 25-40 mph range. Neither condition is conducive to flying larger helis, let alone the little XP.

-----

* Making the World a Better Place -- One Helicopter at a time! *

Dave
04-07-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE   GALLERY
 
 
Lil_jonnnny
Heliman
Location: London

My Posts This: Topic  Forum		Hi, i went to my local hobby shop today. It had Robinson Racing pinions in stock, BUT they are a 48 Pitch pinion.
Can i just ask what is the difference between a 48 Pitch and a 64 Pitch Pinion?
When i saw the 48 Pitch Pinion, the Teeths is a bit bigger than the original kyosho's pinion...why's that?

Thanks
Jonathan
04-07-2007 Over year old.
PROFILE   PM   EMAIL   POSTS   BUDDY   IGNORE  
 
 
25 pages [ <<    <     21      22     ( 23 )     24      25     NEXT    >> ]34337 viewsPOST REPLY
XHELI.COM . Autography FlightPower . Advantage Hobby

.
.
e-New & Emerging Electrics > EP 400 Build Thread
 Print TOPIC Advertisers 

Subscribe to This Topic

Sunday, November 22 - 12:19 pm - Copyright © 2000 - 2009 runryder.com | email | link to rr | START HERE | NF