Need a strong, durable standard size servo

[CSR]

A friend gave me a used TQ3 radio system. I did the toggle switch mod and hooked up another Hitec 645MG on the rear. I ran a couple of batteries thru it here at the house, everything worked great. I went to my crawling spot this afternoon, LOVE 4WS in the big rocks. On my second battery pack, I noticed the rear steer getting slower, much less torque. Before the battery was dead I had lost rear steer all together. :( Other than a set of stripped gears the front 645 has been a good servo. Should I get another 645? The 5645 has more torque and more holding power, seems it would be a good rear servo? I'm using the Super Rooster's 6V to power everything currently, buying materials to build a couple of 6V receiver packs this week. Not ready to go 1/4 scale just yet.

[badtodabone]

hey i got a hitec 645 servo. I only used it for a year and it is in good condition 30 bucks takes it

[killertxt]

Go 1/4 scale you will love it.

[badtodabone]

how do you mount a 1/4 scale on a clod?

[badtodabone]

can i see a size comparasin pic between normal scale and 1/4 scale?

[killertxt]

Here's a link there is a clod and txt with 1/4 scale servo's
http://www.rccrawler.com/postt2328.html

[RXcrawler]

Sounds like the servo is bad or something? On my trucks, when the battery goes dead the motors stall but I still have full function of both servos. I would get another 645.

PS I got some LST and cut the chassis for better clearance!!!!
Yesterday I snapped the pinion shaft in half where the driveshaft connects, its amazing at the traction of those tires.

[CSR]

I'm thinking the servo was bad. I bought it off Ebay. It was packaged in a new box and looked new? I have a 645 on the front, have had good luck with it other than a set of stripped gears. I might just get another 645, I have spare parts now.

Thanks for the offer badtothebone but I don't want a used servo. Hitec will warranty servos as long as you have a reciept, so I need to get one from a hobby shop.

Joey, LST's are hard on stuff! I had a problem rounded out the hexes on wheels. Got stronger wheels now I'm rounding off the hexes on my TTR adapters.

[aubie]

Kenny has killed off a hitech so far and last summer I lost 2 high $ giant scale planes due to hitech servos. Don't know if it is bad servos or hitechs quality has dropped.


Go 1/4 scale you won't regret it.

[TwistedXT]

i posted info on a new brand of servos on the txt forum called blue bird servos, they have one model # HS-630MG that at 4.8volt has 181 oz/in and at 6.0 volts it has just under 200 oz/in and they have the introductory price at $24.95 + shipping. Id give it a shot myself except fot the fact that i just got done building a duel servo setup for my txt with 2 brand new 6055BB Hitec servos. Im itching to try em though... for 25 bucks... might be worth a shot.... oh yeah, they are standard size.

[SR5Dave]

1/4 scale stuff is da BOMB. They're SUPER easy to mount on a clod. The mounts can be made with a drill and hand tools.

With the 1/4 scale Tower Hobbies (el cheapo) servo, I can shove my 20# truck sideways ;) Even if ALL the weight is on the front it still turns the tires with ease.

[rckjeep]

anyone use the futaba 3305?

[Grizzly4x4]

Hitec HS-5945MG They are da Bomb! for a rear steering application.

Torque 4.8/6.0v : 153 / 181 oz.
Speed 4.8/6.0v : 0.16 / 0.13 second
Size : 1.2"x 0.8"x1.5"
Cost: $84.95


HS-645MG
Torque 4.8/6.0v : 107 / 133 oz.
Speed 4.8/6.0v : 0.24 / 0.20 second
Size : 1.6"x 0.8"x 1.5"
Cost: $52.95

Big tires deserve good servos.

[SR5Dave]

Griz.. You are nuts! I would never pay that much for a servo. My Rear servo is an FMA unit, 135 oz-in, full metal gears, EXTREMELY reliable, 30$. I've killed two Kimborough servo savers with it.

For a bit more torque, there is that Blue Bird one above, or 1/4 scale stuff. Get a 1/4 scale servo griz, I guarantee you WON'T go back. The power is just nuts! I need to figure out how to get one on the rear.....

[JasonInAugusta]

I'm using Airtronics 359s on the Gecko, some Futaba micro servos on the shafty.

[CSR]

The 5945 is $90 at Tower! 8O I ordered a 5645 today. It uses the same gears as the 645's so I have spares. If I kill this servo I'll definitely find a way to mount a 1/4 scale on there.

[rckjeep]

Well I bought some cheapo servo's from Balsa.com

And what do you think about this as a steering servo? it has 1715oz. of torque.

http://www.servocity.com/html/power_gearbox_servos.html

[Grizzly4x4]

Originally Posted by SR5Dave

Griz.. You are nuts! I would never pay that much for a servo. My Rear servo is an FMA unit, 135 oz-in, full metal gears, EXTREMELY reliable, 30$. I've killed two Kimborough servo savers with it.

Yes I am nuts . In a competition environment I do not want my servos puking on me so I want the best. So far the 5945 has been the best. And I refuse to run servo savers, they do not offer enough control...yes I tried the good Kimbroughs.

Originally Posted by SR5Dave

For a bit more torque, there is that Blue Bird one above, or 1/4 scale stuff. Get a 1/4 scale servo griz, I guarantee you WON'T go back. The power is just nuts! I need to figure out how to get one on the rear.....

If my 5945 pukes I will try the Blue Bird, sounds like a good deal but it has to be reliable and I have my doubts about cheap servos. 1/4 scale servos will not werk on The SuperDuke. The coil spring suspension and chassis design just dont give me enough room. Plus the weight is too much for a competition crawler IMHO.

Yes it's pricey, but I am really happy with the performance of the 5945. When I turn the rear tires and climb an obstacle, the servo holds it's position...always. I would recommend it to anyone.

Rckjeep, those servo city units are awesome! 8O

[badger]

Originally Posted by Grizzly4x4

Rckjeep, those servo city units are awesome! 8O

Yeah, I am thinking you can turn that into a nice winch.

[rckjeep]

what about using a sail winch servo for a winch? anyone?