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Zoom › Belt conversion for V1?
01-27-2007 02:21 PM  10 years agoPost 1
heliz4art

rrApprentice

San Diego, California

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Does anyone have recent experience with either Helibobby's or HubDave's belt conversion for the V1 Shogun?

Or should I get the manufacturers V2 conversion? I heave read here that the V2 has tail gear drive problems as well.

Thanks

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01-28-2007 01:26 AM  10 years agoPost 2
hueyman

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Joliet, Il.

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with a little skill, you can convert with $15 in parts. just takes a little modding of some plastic parts and the frame. you can do a search or i can post the links if your interested.

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01-28-2007 02:04 AM  10 years agoPost 3
heliz4art

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San Diego, California

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Thanks! i have already done a buch of searches and I am still unsure what to do, so if you could post some links and/ or instructions that would be great!

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01-28-2007 04:55 AM  10 years agoPost 4
hueyman

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Joliet, Il.

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http://www.cuttingedgecnc.com/shogu...Drive%20Version!

and

http://www.rcgroups.com/forums/showthread.php?t=288954

I modified the plastic parts with a dremel tool, couple of drill bits and a small milling tool chucked in my drill press. i had
the milling tool but you can get one from Mcmaster Carr or use a bit from a rotozip (rotary saw). i was able to use the stock elevator seesaw and servo rod control by sanding off just enough of the seesaw
and drilling a new hole for the control rod. forget about installing an elevator control arm on the outside of the frame - the pivot hole in the frame will wear quickly and cause slop because there is not enough room to install a bushing like the stock setup.

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01-28-2007 06:27 PM  10 years agoPost 5
heliz4art

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San Diego, California

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Thanks Hueyman

That is very helpfull information. I will think on this and decide what to do. My neighbour might have a small lathe I could use to trim the drive pulley, I will ask him.

My heli is a not actually the Shogun V1, it is an almost exact clone, called the Falcon 3D which i just bought. It has a bevel input gear to the driveshaft that sits on a bevel gear on the main gear, so I have more room above the main gear than the Stock Shogun. I wonder if I should give the gear drive another chance to work before I convert? The input gear did not fail, the tail bevel gears did fail, because they were meshing too loosely, and the tailcase flexes some, allowing the mesh to get looser under load.

Thanks again!

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01-28-2007 09:53 PM  10 years agoPost 6
astroflyer

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Milford, Nova Scotia, Canada

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Make sure your bearings are locktited to the tail drive shaft, in particular the ones closest to the gears. if they are not, they often migrate up the shaft a bit and under load the shaft flexes and the gears strip.

once you do this, the gear tail is as good as the belt tail.

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01-29-2007 02:03 AM  10 years agoPost 7
hueyman

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Joliet, Il.

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heliz4art, i had very good luck with the gear drive for over a year, just had to keep adjusting the gears about every 10 flights. also lowered the vert.stabilizer to prevent the tail rotor from hitting the ground. still couldn't land in the grass without damaging the gears. i finally converted to belt when the gears let go about 100' up in flight. needed so many replacement parts from that crash that i figured i might as well cut up the frame and convert. once you convert to belt drive, you'll fly with a lot more confidence as the tail will be much less prone to breakage. I also opted for the larger belt drive pulley to speed up the tail rotors. much more responsive tail now.

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01-29-2007 02:49 AM  10 years agoPost 8
heliz4art

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San Diego, California

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Thanks for your help guys!

Hueyman, when your gears failed, was it the ones in the tail or the input gear?

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01-29-2007 11:00 PM  10 years agoPost 9
X30pilot

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Plano, TX -USA

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heliz4art

After spending too much time on tail maintenance on my V1 Shogun I wanted something more reliable.
For the ultimate in reliability for the tail of the V1 try this tail mod.
I have 300 plus flight on it and can land on grass any time I want without fear of stripping gears. The picture explains it all.

X30

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01-29-2007 11:54 PM  10 years agoPost 10
heliz4art

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San Diego, California

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Thanks X30!

My first electric heli was a Piccolo Pro, and I was initially pleased with how the tail held with a motor on the boom. However, when I started to do fast backwards flight I found the tail would often flip out, I really needed a pitch control mechanism or a motor that could instantly go into reverse (which of course does not exist).

So I will probably stick with a driven tail on this bird.

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01-30-2007 01:48 AM  10 years agoPost 11
hueyman

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Joliet, Il.

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the gear that always failed was the input crown gear. most all failures were from wearing out and i would change the gear before it let loose (except the one time it let go inflight). i had one failure when the pinion gear broke off the tail driveshaft at the tailgear box but that was caused when the rotor blades hit the edge of the concrete patio when overshooting and landing in the grass. whichever way you convert to belt, you'll be much happier than always wondering when the tail will let loose.

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01-30-2007 05:55 AM  10 years agoPost 12
heliz4art

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San Diego, California

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Thanks Hueyman!

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01-30-2007 07:12 AM  10 years agoPost 13
Rob_T

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..

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Mine used to wear out the input gear too. They only lasted 2 or 3 hours for me. Eventually even the top of the motor pinion wore too! That was when I gave up on the gear drive and did a belt conversion! (I still have a few input gears left if you want them- PM me an address and I'll mail them if you like).

I saw an interesting photo a while back of a heli with an AXI brushless motor mounted on the tail. The tail was still variable pitch, just driven with it's own motor (and ESC). The picture I saw wasn't a Shogun (at least I dont think so) but the idea should still work.

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01-30-2007 05:59 PM  10 years agoPost 14
heliz4art

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San Diego, California

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Thanks RobT

It is very nice of you to offer to send me the input gears! I do not need theose gears, but thanks for offering.

The Falcon 3D I have has a much better input gear than the Shogun V1, as far as I can see, the only differences are that the Falcon has bigger bevelled tail gears than the bevelled gears they went to on the SHogun, and it has a separate bevelled drive gear on the main gear, which drives a bigger beveled input gear. It looks to me like the input gear setup will work fairly well.

It may be that if I get a metal tailhousing to prevent the thing flexing and allowing the tail gears to slip, that this set up might work.

I like the idea of a tail motor driving a variable pitch tail setup. I am looking for a minimalist, effective setup on this heli though - I don't have enough time to do all the work.

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