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250 Class Electric Helicopters 250 Class Electric Helicopters manufactured by Align, Tarot, SYMA, Airhog, Chaos, HK and similar.


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Old 09-29-2016, 07:46 AM   #1 (permalink)
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Default Swash upgrade?

I have purchased three align swash replacements on my Align 250 and they all have play and make it impossible to setup correctly. All are Align products. Is there anyway to tighten them up?

Bill
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Old 09-29-2016, 09:18 AM   #2 (permalink)
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They all have play in them I have noticed, but if you get everything else setup correctly they little play in the swash should not affect you too much.
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Old 09-29-2016, 09:42 AM   #3 (permalink)
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+1

There is play, but it shouldn't affect the performance. I flew the crap out of mine and it was quite sloppy. Don't go crazy in setup. It doesn't need to be 1000% perfect.
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Old 09-29-2016, 10:06 AM   #4 (permalink)
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Default Swash slop

Setting up a BeastX 7200 or 7210 gets rather difficult in menu steps G & J with all the slop. Might not matter with other DFC gyros. I have use Align exclusively because of what has previously been high quality. Their 250 swash is not up their past quality standards. Makes me wonder if I should consider other manufacturers.

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Old 09-29-2016, 10:14 AM   #5 (permalink)
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I don't know what steps G and J are, but if they're anything to do with neutral pitch, don't worry about it. The 250 is a design from 8 years ago. Back when micros were not common and it was hard to machine stuff that small with high tolerances. It's not a precise mechanical machine, but it flies excellent.

Unfortunately you will not be able to get the mechanical setup perfect on this helicopter. But with a little patience and time it will fly very well, even with all the slop. It certainly shouldn't make you want to change manufacturers.

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T-REX 250 DFC Before Crash (2 min 50 sec)
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Old 09-29-2016, 02:08 PM   #6 (permalink)
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All three of my dfc swashes have excessive play as well. I pulled one apart and put in a different bearing, but it didn't help much. I also use the AR7200bx. For step J, I wiggle the blade I am using for the adjustment and get 6 degrees at the center of that wiggle. For step K I use the upper end of the wiggle for the desired positive pitch, and lower end for the desired negative pitch. I haven't done step G for awhile, I don't recall an issue with it.

I had issues with my dfc head and replaced it with a non-dfc from a copterX. Both the copterX swash and the Align non-dfc swash have nearly as much play as the dfc swashes.

I don't fly like Number does, but I really don't see any negative affects from that slop. I have two other similar sized helis with rock solid swashes and the T-rex flies as precisely as they do..
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Old 09-30-2016, 04:32 AM   #7 (permalink)
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its disapointing that theres so much slop in various places. I just upgraded to the dfc head and was impressed by how solid it was, but then the swash has some slop, and dont get started on the tail seriously... it was slop free in the pitch area but blade grips were terrible, then after some use some play has developed in the pitch links .

http://www.microheli.com/t-rex-250-series

microheli do some nice upgrades but no swashplate :/
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Old 09-30-2016, 04:48 AM   #8 (permalink)
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As a confirmed DFC hater I swopped out the DFC sytem on my Align Trex250Pro for the CopterX swash with FBL head. The CopterX swash has an inferior bearing when compared to the Align swash, but having said that it flies perfectly. I dont think the little bit of excessive play is going to kill the deal. As others have posted above its not really possible to get this little heli 110% mechanically. As far as the tail slop, do the quad bearing mod on the tail grips and you will feel a good improvement.
And whatever you do, do not fall for the blingy upgrades from aftermarket suppliers, it is really not neccesary. A better tail servo is a good idea though.
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Old 09-30-2016, 01:12 PM   #9 (permalink)
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Honestly I've never worried about slop on the 250. With a good FBL unit and a fast tail servo it flies pretty well regardless, and you're never going to get a 250 mechanically perfect.

The Oxy3 is the smallest precision model that I know of, below that size I treat them as beaters and try not to spend too much money on them.
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Old 10-01-2016, 04:20 AM   #10 (permalink)
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Quote:
Originally Posted by myxiplx View Post
Honestly I've never worried about slop on the 250. With a good FBL unit and a fast tail servo it flies pretty well regardless, and you're never going to get a 250 mechanically perfect.

The Oxy3 is the smallest precision model that I know of, below that size I treat them as beaters and try not to spend too much money on them.
yep ive tried to mmake the tail work with an ok anologue servo. the best i got was a tail that was very soft and would bounce a little on stops. accell value needs to be dropped right down otherwise it just wags badly or goes into WOD.

i have a copterx swsh and it has some slop, when my 250 was fling well the slop didnt seem to make much difference. flew fine to me
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