Best budget servos for my 450 pro v2?

[aForcefulThrust]

I was thinking about these savox servos.. Will they fit?

Any other recommendations?

[Ranger71d]

Take a look at the Hyperion 11AMBs for cyclic. I really like these on my 450.
I use an MKS 8910a+ tail servo. Not budget but well worth the price.

R71D
Sent from my phone, excuse the bad grammar and auto corrections.

[satgod]

on a budget I like the henge 933's on cyclic and 922 on tail or 922 all the way around
you can get all 4 off ebay for about 50.00 shipped to you and they are metal geared
you can gear case and gear replacements from http://tarot-rc-heli.com here in the U.S.
he has the servos as well but they are a little higher here in the U.S.

on a real tight budget I have used tower pro 90mg servos they work well but are analog

[JoeW]

Not sure how 'budget' is budget but... the new Align DS415's are metal geared, slightly faster and slightly more torque than the 410s, and are about $25 each.

That's a full servo cheaper than the 410s were/are.

I just bought a set for a Pro I'm working on. I'll probably pick up another set to replace some older 410Ms... then use those older ones as spares for my other three 410M helis.

http://www.align.com.tw/shop/product...oducts_id=4356

[senoj]

I have the Savox 0257MG on mine. They fit but the mounting holes have to be opened slightly to get them to line up with the holes in the block.

[amedv]

Originally Posted by satgod

on a budget I like the henge 933's on cyclic and 922 on tail or 922 all the way around
you can get all 4 off ebay for about 50.00 shipped to you and they are metal geared
you can gear case and gear replacements from http://tarot-rc-heli.com here in the U.S.
he has the servos as well but they are a little higher here in the U.S.

on a real tight budget I have used tower pro 90mg servos they work well but are analog

How do you mount 922 on tail? It's a micro servo and the Pro accepts mini.
Use custom servo tray?

[pinguin]

Use a servo mounting plate, or make your own.
http://www.miracle-mart.com/store/in...oducts_id=4802

[satgod]

the mounting plate pinquin said or put it ont he tail boom with these

http://www.ebay.com/itm/Metal-rudder...item231a4acfef

I put mine on the boom it makes it easy to center the servo and make adjustments and then I put my esc between the frames under the main gear

and you can always go with a 9257 clone like this

http://www.ebay.com/sch/i.html?_trks...servo&_sacat=0

remember if you use any 9257 servo even a clone your bec can not exceed 5v or you will kill the servo

[Arkanor]

I just ran some of the Hobbypartz Solar D650's and they work pretty damn good for $10/pop. They hold well for cyclics, had one on the tail too but it doesn't quite have the speed, had to replace that one anyway when I burned it out smashing the heli into the ground and bending the hell out of the tail rod (without flicking the gyro back to Rate). Unfortunately Hobbypartz has pretty mixed/poor reviews as a retailer though I haven't had a problem yet but sometimes they go out of stock on things, I know those servos were out for a while (though they held up so I didn't really need more).

Replaced the tail with a Hitec 8054MG, it's rock solid and fast, $35 but it seems like it's a non-standard mount. I made a micro-mount plate for my D650 in the rudder servo holder and had to make another custom plate for the 8054.

[Bladecpnitro]

I like the Henge 933 MG's on my EXI 450 Pro but the first mild crash broke the tab off an almost brand new one on the elevator. I put about 24 flights on the next one on elevator and the top mounting tab broke off just under normal hard flipping. I've learned to inspect my bird pretty carefully before every flight and caught that before it crashed me. I have an old T - Pro 90 stuck on the elevator now until I can get some servo cases for my 2 injured Henge 933's or a different servo all together.

T-Pro 90s work great but the servo arm is bad to slip on the spline in hard usage and get the servo arm off center. I pressed the arm on with a piece of tape on top of the spline this time and cut off the access to tighten the fit up a little and so far its holding.

I'd like to know how the new Align DS 415 holds up.

The trick to faster flipping is in the paddles. I love my KBDD paddles. Its not flipping backwards quite as fast as it was with the Henge 933 on elevator but still way faster than stock paddles. That's the single best upgrade I ever did to my bird. It makes it really sensitive at high speeds so you have to add some expo in there to tame it.

I think I'll order one Align DS 415 right now and try it.

[Bladecpnitro]

Hey JoeW, how are you liking the Align DS 415? I just ordered 2, 1 for elevator and a spare. The specks on it look better than the famous Hitec HS65MG. I thought the high torque would work well on elevator.

The elevator has more stress on it than the front two servos because in elevator only moves you have a single elevator servo pushing and pulling against 2 front servos. I have more elevator servos fail than any other servo.


Its like this pump trolley, if you remove one guy in the back the one left is gonna catch the blues.

YouTube

YouTube

[JoeW]

It's more like 3 guys, equally spaced lifting a hula hoop. If one of them is faster and stronger, it will never be level during the motion. The others will catch up once he's done.

I'm not in love with them yet. The gears will strip out easily. Moving them by hand without power will strip them. Even a 'light crash' you'll be replacing gears. I've started powering up the heli when I fold the blades and using the cyclic to get them in the right position for the blade holder.

I only have about 6 flights on my 450 with the 415s. Maybe they'll free up after some more flights.

My initial impression is they are at least as good as 410s, but the gears are a lot more delicate.


Sent from some Apple device using Tapatalk

[RedOctobyr]

Bladecpnitro, interesting point about the extra load on the elevator servo. But, like JoeW said, it still seems like having mismatched cyclic servos will likely cause some odd effects.

In a full-collective punchout, if your elevator servo gets their quicker (whether because of a faster angular speed, more torque, or a combination of the two), you will tilt forward, because the other two took longer to rotate into position. Dropping the collective quickly, you will tilt backwards.

But I guess it's still better to have elevator be the "odd man out", I'd rather have an unintended tilt straight forward/back, instead of pitch or aileron being different, and having it be a forward-and-to-the-right type of tilt And maybe this tilt isn't actually significant in-practice. But it's something I'd be curious to look for, if it were me.

[JoeW]

Well, if the servos are close in specs, given that we aren't moving a 60* throw, the resultant difference may be small enough that the difference won't be noticed.

But still, it's best practice to replace 1 with the same type and make, or replace all 3.

I don't think you'll find any heli guy tell you having mismatched servos is a solid idea.


Sent from some Apple device using Tapatalk

[Bladecpnitro]

I already have a mis matched set of servos. I'm running a T Pro 90 in back since the tab broke off my elevator Henge 933 in flight and 2 Henge 933s up front and the only noticeable difference is slower backwards and forwards flipping, punch outs are still dead on because its not like I'm running an elevator servo that's half as fast as the 2 in the front. They still all max out about the same time, the 933's do beat the T Pro servo off the line but just barely. Its hard to even see the difference in speed with the naked eye.


Hard loops, back flips and forward flips is where the elevator stress is identical to having one man on the back of the pump trolley and 2 up front. The man in the back gonna get tired quick, IMHO.

I was hoping the DS915s were going to rock Joew. How could they strip just moving them by hand. You have to be joking right?

[Daddy]

Originally Posted by JoeW

Moving them by hand without power will strip them.

[Bladecpnitro]

The Align DS415's come with the Trex 450 Plus Sport RTF kit. Here is a guy flying the crap out of one with the DS 415's. It also comes with a DS425 rudder servo.
http://www.youtube.com/watch?feature...&v=qrxToRWB2Q8

[Bladecpnitro]

I just flew two packs with my new Align DS 415 on elevator and 2 Henge 933's up front on my EXI 450. This guy is definitely strong and a good bit quicker than the Henge 933's if I go full negative and then full positive on the bench really quick, its easy to see how much faster it is. I like it so much I think I'll upgrade the rest to the Align DS915. I hope they last a while.


I finally discovered a little easier way to get the elevator servo in in just a few minutes now.

[Stickey]

On a 450 Pro, I mounted the servo on the outside of the frame instead of the inside. Screwed in a extra nut on a longer bolt for the top for spacing, bottom is flush w/ the frame. Put the ball on the outside of the arm and it's perfect (for me at least). Then you can pull the servo very easily.

You can pull the front ones without too much trouble, just remove the battery tray and have a long screwdriver.

Originally Posted by Bladecpnitro

I just flew two packs with my new Align DS 415 on elevator and 2 Henge 933's up front on my EXI 450. This guy is definitely strong and a good bit quicker than the Henge 933's if I go full negative and then full positive on the bench really quick, its easy to see how much faster it is. I like it so much I think I'll upgrade the rest to the Align DS915. I hope they last a while.


I finally discovered a little easier way to get the elevator servo in in just a few minutes now.

[JoeW]

There's a new main bearing block set coming 'soon' for the Pro. The front servo portion comes off with what looks like a single screw. Hopefully without removing the battery tray.

The ProV2 frames are also cut so that the elevator servo mounts flush on the 'outside' of the bearing block. You just need to put the servo ball facing the servo to maintain the geometry.