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Gasser Model RC Helicopters > Align 600N gasser conversion
 
 
Pre-Mix
Senior Heliman
Location: Thailand

No worries! This place was a real life saver for my project. All the best.

regards, Johan

*186,000 miles per second...ITS NOT JUST A GOOD IDEA---ITS THE LAW*
04-19-2008 06:35 PM
HOMEPAGE  
 
 
Fixit
Key Veteran
Location: UK

Hi Dana, How are the test flights doing? Oh and your homepage seems to be down, I'm sure you know but I just thought Id mention it.

Cheers
04-20-2008 10:12 PM
HOMEPAGE  
 
 
copperclad
Elite Veteran
Location: ..

hi Peter
thanks , i found out the server i had , decided to stop supporting internet exploiter , i moved my homepage to a new server , so i am thinking it is back up and running , thanks again , dana
04-20-2008 10:31 PM
 
 
Fixit
Key Veteran
Location: UK

Hi Dana

Yep it’s back up now

Cheers
04-21-2008 04:23 PM
HOMEPAGE  
 
 
copperclad
Elite Veteran
Location: ..

hi
i wanted to post an update since it has been awhile , i have been flying and having a great time with the machine , everything seems to be working out fine , i have all but finished putting the first gallon through the machine , and have been going over the mechanics with a fine tooth comb between flights , and it looks quite happy with the engine , there is no noticable wear anywhere and the machine is breaking in and flying very smoothly , all the bearings are smooth and tight still , the clutch runs cool , and the maingear looks brand new still

my friend Fixit has been involved with this project from the very beginning , and we thought it would be good if a second machine was built up and flown for evaluation , so Peter has started on a build of a modified design that is based on the stock bellcranks and using a top start option , i have modified a Predator fan and fan hub and sent them off to him and he has built the rest of the machine , and we are just waiting for the parts to cross the pond , i always say " spread the guilt , and the punishment will be less severe " and i figure two opinions are better than one , it is great to see another machine being put together , good work Peter , cheers , dana
04-25-2008 04:42 PM
 
 
jackheli
Elite Veteran
Location: Vancouver - Canada

Hi Dana,

Congrats on a well executed project!

Here comes the question bombardment:

Have you finally managed to overcome the pinion drought? still on the 1500rpm head speed? does the head wobble at all at that low speed? which dampers are you running?

Has anybody tried the machine on hard 3D?

And best for last: when do you foresee it will be available to us, poor drooling pilots?



Anyone who has never made a mistake has never tried anything new - Albert Einstein
04-25-2008 06:03 PM
 
 
victor55ca
Senior Heliman
Location: Vancouver BC

Another question:

A parts list break down would be nice too.

Kit, Engine, Century Fan, etc....

I am in the market for a new gasser and this seems like a very cool project.

Vince
04-25-2008 06:47 PM
 
 
copperclad
Elite Veteran
Location: ..

hi Jack

i have been running it down to the field and flying every chance i get , and i am just finishing the first gallon of fuel , so i am still breaking in the engine and playing with pitch & throttle curves and the gyro gain , the tail still kicks a bit as it is still running a touch rich , but i can say so far i am very happy and the machine is very smooth , my main interest is still to fly off a few gallons and see how things hold up , and with Jack's machine and now Peter's machine in play , there will be more experienced pilots flying than just myself

i am running 620mm blades and at 1500 RPM , the machine is very smooth , i don't see any wobble , but again as a sport pilot i am probably not qualified to judge , one thing i am seeing , and this is just for myself , but the 20 tooth pinion seems to be fine for what i am doing , i was worried i would not be able to manage 1500 RPM , but i am seeing the engine seems to be running easy with the head at 1500 and running cool also

i am still very interested in offering a kit , and it is looking a lot more promissing to me now , but i have to say , there is still a lot more to do before that happens , thank again , dana
04-25-2008 06:53 PM
 
 
copperclad
Elite Veteran
Location: ..

hi Vince

my guess would be yes , but the 231 has a larger profile , so it would involve a new set of frames , but other than the new frames it would work well with the Century fan and shroud , i have a 231 sitting here in a box , so i might be able to run up a set of frame profiles for it , i have the 231 engine profile in my computer already from the R-90 conversion i was doing last winter , dana
04-25-2008 06:59 PM
 
 
Fixit
Key Veteran
Location: UK

Hi Dana
Quote 
Peter has started on a build of a modified design that is based on the stock bellcranks and using a top start option

Hi Dana, Well I might have helped Dana make is mind up to start this conversion by saying I would like to covert the 600 but I could have never come up with anything like the conversion Dana has created on my own.

I met Dana through the Raptor 90 gasser thread and we chatted and became friends after a while but we haven’t been on a date yet LoL

I soon realised that Dana not only had the skill to carry out the 90 conversion but also he has the machinery and the knowledge on how to use it, the only problem was he got the 600G fever half way through the 90 build and that could have been partly my fault

T-Rex600G
I have started a 600 conversion using Dana’s ideas but as I like to run the onboard generators so I wanted to Keep the starter shaft, I’m well into this build now so I will post some pictures later when I can find them all

This conversion isn’t going to be the cheapest of gassers because of the parts used in the drive train but they are robust and well proven and that’s why Dana chose to use them, apart from the drive train the rest of the parts will be easy to get anywhere when you need them after a crash and as far as gassers go they will be cheep

Thanks again Dana for coming up with this work of art

Peter
04-25-2008 07:07 PM
HOMEPAGE  
 
 
victor55ca
Senior Heliman
Location: Vancouver BC

Well upon reflection I think there could be problems with blade grips, are they strong enough for a 12 lb helicopter? Can the dampeners take the extra weight? One would have to extend the tail boom to use 680, 720 blades can you get patrs for that? The pinion would have to be changed to get a good ratio for a 231. Are the frames stiff enough for the extra touque?

Is Align coming out with a 90 size heli?

Vince
04-25-2008 07:09 PM
 
 
Fixit
Key Veteran
Location: UK

Hi Vince
The synergy boom fits the 600 and you can use the R90 shaft along with it, you could swap out the blade grips for the 600 alloy upgrades but the 700 will be out soon and that could have interchangeable parts like the pinion and grips.
I will be stretching my 600 to 680 after its run in.
04-25-2008 07:17 PM
HOMEPAGE  
 
 
jackheli
Elite Veteran
Location: Vancouver - Canada

Guys... the coolest thing is to have a 600 size gasser KILLER heli.

'nough said!



Anyone who has never made a mistake has never tried anything new - Albert Einstein
04-25-2008 07:24 PM
 
 
copperclad
Elite Veteran
Location: ..

hi Vince
Quote 
Is Align coming out with a 90 size heli?

there are a bunch of people here on RR , that have already converted 600n's to 90 nitro and larger , there are stretch kits out for these big block 600s also

and as Peter points out the 700 is comming out soon , of course don't tell anyone you heard it here , but i have heard people are already talking about the 700G , dana
04-25-2008 07:30 PM
 
 
Fixit
Key Veteran
Location: UK

Vince asked
Quote 
A parts list break down would be nice too.

Parts list for the none Bell Crank 600G Conversion Off the shelf parts
T-rex 600n kit & 2 Frame Mounting Blocks, you wont need the stock frames.
Zenoah 20 Ei Gas Engine
Zenoah Pull Start
Century Gas Fan Shroud, you need to shorten this by 10mm
Century Shroud Mounting Plate
Century Long Alloy Servo Arms,optional
Century V2 Muffler, optional
Raptor 90 Clutch & Bell
Gas Fuel Line & Tank Stopper
Felt Clunk

None Standard Parts
600G Frames and Base Plate,
R90 Pinion Reworked
Century NX Fan Hub Reworked
Century Gas Fan Reworked
Start Dog for Pull Start, this has to be made from scratch.

For the Bell Crank version
First you need the bell crank bearings pressing out of the standard 600n frames but this will render them useless, or you could bond 2 flanged bearings in the 600G frames and save the 600n frames.
You then need a starter setup
For this I used a R90 6mm shaft and coupler, bearing block and four 12mm spacers for each side of the bearing block that you will need to make.
I’m sure Dana will correct this if I’ve missed anything.

I think that’s all and I hope it helps.

Fixit
04-26-2008 02:06 AM
HOMEPAGE  
 
 
Fixit
Key Veteran
Location: UK

Fixit's 600G build Part 1

I was lucky enough to get the chance to build this 600G so I thought I would share it with you all, the quickest way to get the 600G frames for me in the UK was to cut them out from a drawing provided by Dana (copperclad) and this is how I set about cutting the frames out.

I used a jig saw and a yellow blade (marked aluminium) and as you can see I clamped it into my vice and fed the 2mm alloy sheet through it slowly with the cutting speed set half way and then finish them off with files and what ever simple tools I could lay my hands on
The frame drawing was first stuck to the 2mm alloy sheet with wallpaper paste and then when dry cut out leaving the line on.
This is not the way for the faint hearted but it got the job done



Once you’ve done that lay a 600n frame on your newly cut frame and mark out were you want the holes and slots, take your time with this and work from the center out both ways and think were things need to be as the new frames are longer and deeper then drill the frames out when you happy.
I completed one frame first then built it up to make sure all the gears lined up then when I was happy with that I bolted it to another sheet and marked it out for frame No 2, this way I stood a good chance of having a matching pair.

Once you’ve done that it starts to take shape very quickly as you can see from the photo and that's when you start to get the 600G fever like Dana and me




Back soon with some more on this build
And anyone thinking of doing this conversion in the UK grab a bargain
http://cgi.ebay.co.uk/ws/eBayISAPI....:MEWA:IT&ih=019


Fixit
04-26-2008 02:48 AM
HOMEPAGE  
 
 
Fixit
Key Veteran
Location: UK

Fixit’s 600G build Part 2

Once the frames are done you need to fit the six frame mounting blocks and then build it just like you would a 600n, there’s nothing different about the way it goes together apart from the starter bearing block and I will come to that later, just nip the bolts up for now with no thread lock.

When that’s done make a base plate out of 4mm alloy 270mm x 70m, mark it out for the six mounting points and fix it to the frames, now stand it on a flat surface, press down on the top so it sits flat and hand tighten all the bolt and if your happy everything lines up and the gears all runs smooth you can move on to the starter shaft.

The starter shaft and bearing block used came from a Raptor 90 because it mates up perfect with the clutch but the 600G frames are 24mm wider apart so you need to make four spacers for these, I used four Raptor alloy frame spacers for the sentor of the block and then cut the 600n bearing block up to make the outer spacers, see photo below.

Now you have the spacers made fit the pinion, bell and coupler then fit it in the frames and line it up then mark where the holes need to be, now you will have to take it all apart and drill the holes







The 90 bell just clears the frames but I have it on good authority from Dana that it won’t rub if all you’re bearings are in good order



At this point the fan and hub haven’t arrived so I'm moving on a bit with other jobs until they come so for the next job fit the fan mounting plate, the bolt holes are off but you can see were they need drilling easy enough, I traced the century plate and made a new one and then drilled it so I didn’t have spare holes left in the plate and then I set to and cut a hole for the sensor and made a simple bracket to hold it in place at 6 0 clock.



I wanted to keep the sensor at 6 0 clock because you can then fit the spinner that comes with the engine back on the crank with the key in place and mark where the magnet needs to be for the ignition when you fit the fan



The next job was to cut a 10mm section from the shroud and glue it back together, I used a 8mm lining stripe then a cut off wheel and then slipped the front section just into the rear part with two-pack glue and held it together with battery clips, when dry I added a ultra thin matting on the inside with more two-pack and it set fine.





And the next job was to fit the engine in place along with a throttle servo, make a throttle arm for the carb, for this I used a raptor fly-bar alloy arm cut down and drilled for the ball because the hole center matched the shaft on the carb plus it has two grub screws in it already, I used a long futaba servo arm the link lines up perfect,





And the last two jobs for now was to make a plate for the switch and fit the ignition unit under the tank.



Man I'm having a ball building this 600G.

That’s all for now until the fan and hub arrive in the post from Dana (Scottish class) LoL
04-26-2008 06:58 AM
HOMEPAGE  
 
 
copperclad
Elite Veteran
Location: ..

hi Peter
great posts , it is looking fantastic , great to see the photos , cheers , dana
04-26-2008 03:08 PM
 
 
Fixit
Key Veteran
Location: UK

Hi Dana
Quote 
it is looking fantastic
Thanks, I think so too
Peter
04-26-2008 07:56 PM
HOMEPAGE  
 
 
Fixit
Key Veteran
Location: UK

600 Boom Stretch

Hi Dana

I've just picked a synergy boom up today and I'm ready to stretch the 600G I just wondered if there’s a formula in working out the length of the boom in relation to the main blades, in the past all I’ve done is add the difference in blade length to the boom, do you think that’s the right approach or maybe I should add an extra 20mm for the option of using 700s, what do you think.

Peter
04-28-2008 05:08 PM
HOMEPAGE  
 
 
23 pages [ <<    <     18      19     ( 20 )     21      22     NEXT    >> ]14766 viewsTOPIC CLOSED
CarbonXtreme . Midland Helicopters . HeliProz

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Gasser Model RC Helicopters > Align 600N gasser conversion
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