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Old Feb 28, 2010, 05:14 PM
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Rosella's Avatar
Adelaide, South Australia
Joined Mar 2004
413 Posts
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Blade SR BELT DRIVE

Heard news about the release of the new Blade SR and wondered about how easy a belt conversion could be done.
Picked up the Blade from a LHS on Friday and after tinkering over the weekend, the conversion was complete.

This was quite easy compared to the other mods I made like the Axe and CP Pro (www.freestyle-hobby.com)

The electrics allow only a tail servo (currently a Futaba S3114 analoge) to be added. Simply unplug the tail motor, unplug the signal plug from the gyro to the esc, and plug in th new servo.

Mechanically: a custom made alloy belt pulley and retainer for the main gear, spacer to drop the main gear slightly, an idler block for two flanged bearings to guide the belt down the stock boom, custom made belt, and a complete Skyartec tail unit (currently metal, will try plastic when I have more parts).

I adjusted the servo push rods (about two full turns each) to compensate to the main gear spacer, which lowered the head about 1mm.

It is totaly reversable with only three 2mm holes drilled into the heli. No other modification required.

Total weight, including battery, 370 grams.

Flight testing is continuing and hope to have some data (amp draw, flight time ect) and video this week.

Tail holds well and is precise. Flys best on idle up or flight mode 1 (higher head speed). I guess with a digital servo (the stock gyro has digital output) it will work best.
Like the rest of the heli, the tail responds nicely to stick moments and will suit the begginer.

Video links

First video starts with a little flight in normal mode and slower cicuits

blade SR belt drive first.MOV (2 min 14 sec)


Second flight is straight into flight mode 1

blade SR belt drive second.MOV (2 min 41 sec)
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Last edited by Rosella; Mar 05, 2010 at 03:35 PM. Reason: Video links added
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Old Feb 28, 2010, 05:19 PM
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Very nice will be keeping my eye on the progress.
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Old Feb 28, 2010, 05:23 PM
KAE
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United States, WI, Sheboygan
Joined Jan 2010
219 Posts
Wow. That didn't take long!
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Old Feb 28, 2010, 05:28 PM
Fly Runaway Fans
United States, TX, Fort Worth
Joined Jan 2009
9,384 Posts
Wow, a 2-day hack of a heli that's only been in distribution a week? Awesome!

You kinda gotta wonder, if it's that easy, why Eflite didn't do it in the first place.
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Old Feb 28, 2010, 05:29 PM
If it flys it can die!
LaserSVT's Avatar
Texas
Joined Oct 2009
892 Posts
Holy cow! That was fast! I am very very interested in this mod. That looks factory!

Would you be interested in supplying all the parts for me to do it too? PM me and I can PayPal you whenever. I dont mind waiting a bit for you to work the bugs out and I can get a digital servo locally but I am really really interested. I am already getting annoyed at the tail wag on this thing after 10 flights.
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Old Feb 28, 2010, 05:39 PM
Coaxially Fixated
copperclad's Avatar
Rochester N.Y.
Joined Oct 2005
1,899 Posts
Hi Rosella

very nice work , thanks for posting , regards
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Old Feb 28, 2010, 05:47 PM
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United States, PA, Lake Wynonah
Joined Aug 2004
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Excellent Job.
Thats how it should have come
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Old Feb 28, 2010, 06:17 PM
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Germantown, WI.
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........................................
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Last edited by Balr14; Mar 02, 2010 at 08:25 AM. Reason: off topic
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Old Feb 28, 2010, 07:00 PM
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Rosella's Avatar
Adelaide, South Australia
Joined Mar 2004
413 Posts
Quote:
Originally Posted by skeppley View Post
Excellent Job.
Thats how it should have come
Thanks, I agree.

The conversion, once sorted, will take less than an hour to complete.
Best of all, all the stock equipment and radio gear can be used without any major adjustments.
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Old Feb 28, 2010, 07:10 PM
Bruno, GOOD DOG
A Rdnek's Avatar
United States, IA, Grinnell
Joined Aug 2007
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Quote:
Originally Posted by Rosella View Post
custom made belt
How do you "custom" make a belt?
Ron
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Old Feb 28, 2010, 07:17 PM
Registered User
Rosella's Avatar
Adelaide, South Australia
Joined Mar 2004
413 Posts
Quote:
Originally Posted by A Rdnek View Post
How do you "custom" make a belt?
Ron
The belt has been spliced to approx 2mm wide, with a shop built tool.
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Old Feb 28, 2010, 07:24 PM
Bruno, GOOD DOG
A Rdnek's Avatar
United States, IA, Grinnell
Joined Aug 2007
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Quote:
Originally Posted by Rosella View Post
The belt has been spliced to approx 2mm wide, with a shop built tool.

OK, Now I understand.
Thanks
Ron
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Old Feb 28, 2010, 08:00 PM
Chef, Snowboarder, WEEEE!
Latham NY
Joined Apr 2007
276 Posts
THAT IS F'N SWEET !

nice job.. send the specs and stuff to E-flite...

THIS IS WHAT IS SHOULD HAVE BEEN !
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Old Feb 28, 2010, 08:04 PM
2 seconds from crashing
indoorheli's Avatar
United States, WA, Seattle
Joined Sep 2007
7,349 Posts
Rosella nice job on your conversion

Quote:
Originally Posted by Balr14 View Post
Buy a GuruZ-Neon or Xeon conversion kit, swap the SR parts over to it and add a tail servo. We have been doing this for years using HBFP and Blade CP components. http://www.heli-fever.com/index.php?...kg5pa57mq5tr05
Yeah this is what i might go with if my other idea doesnt pan out since it is fairly cheap
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Old Mar 01, 2010, 11:56 AM
If it flys it can die!
LaserSVT's Avatar
Texas
Joined Oct 2009
892 Posts
Quote:
Originally Posted by Balr14 View Post
Buy a GuruZ-Neon or Xeon conversion kit, swap the SR parts over to it and add a tail servo. We have been doing this for years using HBFP and Blade CP components. http://www.heli-fever.com/index.php?...kg5pa57mq5tr05
I would rather have his mod.
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