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HomeAircraftHelicopterAlignT-REX 700N › New MicroHeli MOD 1 700 Gears come pre stripped!!
04-07-2009 07:02 PM  9 years agoPost 21
baddynergy

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sierra madre, ca- usa

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The design works fine in 50 sixe helis (raptor and 600n) come to mind. But the rest of the 90s have more support. Or the could do away with the one-way in the clutch, and make the clutch and starter shaft 1 piece like the N9 or MA machines. The one way creates a flex point and that combined with the SMALL bearing housing for the start shaft(should be mounted with 4 bolts and another large bearing) allows the torque of the engine to ride off the main gear.

What we need is a larger starter shaft housing that is mounted with 4 screws. IMHO that might solve ALOT of issues.

**Unattended children will be givin a shot of espresso and a puppy**

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04-07-2009 07:09 PM  9 years agoPost 22
johnsalary

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MI

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What we need is a larger starter shaft housing that is mounted with 4 screws. IMHO that might solve ALOT of issues.
Well Badraptor, look the picture. I just started deep research of this problem. The picture show clearly that there is some thing really wrong. I started form zero - it means original setup - no 3rd bearing no MA or other maker gearing. WHY only top 50 % of T area is used?

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04-07-2009 07:14 PM  9 years agoPost 23
baddynergy

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sierra madre, ca- usa

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WHY only top 50 % of T area is used?
Because your engine is not lined up properly.

**Unattended children will be givin a shot of espresso and a puppy**

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04-07-2009 07:19 PM  9 years agoPost 24
johnsalary

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MI

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Is NEW KIT no adjustable clutch bearing block - so HOW to adjust? Another person said
they should have designed it so you can adjust the mesh.
You set:
I do disagree. If all tolerances are the same (which they should be) there would no need to adjust the mesh if machind and designed properly.
Well how NORMAL user can adjust the mesh and engine position?
HOW? I can have aligned my engine properly, when there is no possibility to align my engine?

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04-07-2009 07:19 PM  9 years agoPost 25
hampilot

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Sparks, NV USA

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and you almost never see it actually happen.
Ive seen it happen, to my friend Majestic. He was doing an inverted pitch pump and it just dropped like a rock. This was #3 for him including the microheli gear. He has the clutch bearing block mod and his mesh was perfect until.. the first strip was in easy inverted forward flight, the second was the Microheli gear that lasted just seconds after takeoff, now this one. He now has the third bearing block mod as well, time will tell.

what I dont understand is why some stock machines seem to be fine, while others are not. I saw a ton of 700's in vegas, most of them stock, really getting banged around and no one stripped a gear. My gear is OEM, so is my brothers.

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04-07-2009 07:24 PM  9 years agoPost 26
baddynergy

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sierra madre, ca- usa

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Well how NORMAL user can adjust the mesh and engine position?
Something is not lined up in your set up. Dont know what it is without your heli in front of me. BUT your start shaft and mainshaft are NOT perfectly parallel. I would check clutch bearing mount first. THen i would check to make sure your frames are perfectly aligned. Did your mainshaft drop through the main bearing holders smoothly??
Did you square up the frame when you built it?
Something is out of tolerance, wether it be the alignment tabs on the blocks, holes misdrilled in frame, who knows with these kits.

Just looking at your pix as good as I can, I would say your maishaft is off a degree or 2. Your gears are not perfectly parallel to the frame. THat is why you are only using the top half of the gear.

**Unattended children will be givin a shot of espresso and a puppy**

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04-07-2009 07:43 PM  9 years agoPost 27
johnsalary

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MI

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There is no chance to move the main shaft back or forward. Is locked in the slots by screws EXACTLY at the designed position. Somebody mentioned already here that the wheel is too flexible. I looked on it and it is true. I thing the wheel bend when power applied...... Just got idea to mount camera there and watch the transmission system behavior during flight

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04-07-2009 07:58 PM  9 years agoPost 28
baddynergy

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sierra madre, ca- usa

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There is no chance to move the main shaft back or forward. Is locked in the slots by screws EXACTLY at the designed position.
Yes there is. You need to loosen ALL the frame screws and pull back on the top of the mainshaft until it is vertical. Then retighten the screws while you hold it. It will tweak the frame enough to where it "should" be in alignment.

**Unattended children will be givin a shot of espresso and a puppy**

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04-07-2009 08:12 PM  9 years agoPost 29
johnsalary

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MI

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I have this done twice trying to push the wheels against each other to make the mesh smaller. There is still play. I have build many helis and never had this problem. I have Raptor here aside. Just touching the wheels and trying bent them up and down. Far different feeling at all..
I'm not trying to say bad and bad and all bad. I'm trying to find the real reason why this problem come up - that's it.

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04-07-2009 08:18 PM  9 years agoPost 30
baddynergy

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sierra madre, ca- usa

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john,

Look closely at your pic. Your maingear is not parallel with the frame(it should be). You need to find the reason for this. Even if you could adjust the mesh, "most" still do not allow you to adjust the angle of either the engine or the mainshaft. Something is out of tolerance on you airframe.
I have this done twice trying to push the wheals against each other to make the mesh smaller
You loosened ALL the screws(and I mean each and every screw on the entire heli) and tried to straighten it?? On yours I wouldn't say the mesh is "wrong" its just not aligned. Meaning your gears are not PERECTLY parallel.

**Unattended children will be givin a shot of espresso and a puppy**

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04-07-2009 08:28 PM  9 years agoPost 31
johnsalary

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MI

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Look closely at your pic. Your maingear is not parallel with the frame(it should be). You need to find the reason for this.
It is OK is just wrongly photoshoped - I did not aligned the picture in order to post it quick.
You loosened ALL the screws(and I mean each and every screw on the entire heli) and tried to straighten it??
Yes I did all seems exact and perfect. I have another ideas form others in PM but lets wait till morning. I take the camera and record some action to see whats going on there

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04-07-2009 08:32 PM  9 years agoPost 32
gftazz

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upstate N.Y. in the Adirondacks

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I wonder, as I have read on here in some other forums where the cap head shanked bolts used in the T700 kit are out of round and as you screw them into the holes they wobble and that may be causing some peoples kits to have alignment troubles and others not. May be a first batch second batches thing with those cap head frame bolts.

Some people are buying the T600 ones and swapping them out as they seem to have a clean roundness on the shanks and go in correctly not to mention that the allen wrench hole in the head of them is deeper so they don't seem to strip out like the T700 supplied ones do.

I bought a couple of packs of the ones for the T600 to use when I put my T700 together and I will be watching all these clearances and tolerances to make sure I have straight and tight with proper gear mesh. I may also pick up a Quick UK clutch to use off the get go in it too as these seem to break in the T700 kits too.

Oh No Someone Please Stop Me Before I Go Broke With This Heli Thing!!

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04-07-2009 08:34 PM  9 years agoPost 33
baddynergy

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sierra madre, ca- usa

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johnsalary

In your pix, your heli is NOT stock. You have a third bearing block. Is it possible that it is not installed correctly?

**Unattended children will be givin a shot of espresso and a puppy**

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04-07-2009 08:48 PM  9 years agoPost 34
johnsalary

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MI

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baddraptor I have few helis here and the wheel is taken out from new stock heli after I seen the marks only at 50% of T area. Than posted to gasser, where is 3rd bearing installed and where I'm 100% sure is all aligned perfectly. I want to see now after another one liter of fuel, if the lower bearing makes difference - if the gear become marked by the pinion like should be - in whole working area.. I report it morning.

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HomeAircraftHelicopterAlignT-REX 700N › New MicroHeli MOD 1 700 Gears come pre stripped!!
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