RCCrawler Forums

bobbythebrain · 12-27-2006, 06:26 PM

What's the concensus on getting the most torque out of your steering servo?

I mounted a Hitec 645 (kimbrough saver), 109 oz on the left axle brace using a peice of angle aluminum for a bracket.

The steering sucks. It has a huge turning radius and doesn't seem to have much power to turn the big stock tires. I did notice quite a bit of flex in the bracket.
I wat to cure this issue before I get another serve for the rear.

dezfan · 12-27-2006, 07:03 PM

You need WAY more than 109 oz's. of torque. Try a servo w/ 200 oz's. of torque.

bobbythebrain · 12-28-2006, 05:58 AM

Thanks for the reply

I see other people using the same servo HS-645MG (133oz at 6v). Does anyone else use it with good results? If so what type of mount?

Another question I have is about my ESC power. I'm powering the reciever from a Super Duty ESC. I'm not using the BEC but yet it powers the reciever through the throttle channel. Is that ok/normal? If ok, then is it 4.8v or 6v? Novak doesn't specify in the manual, it just talks about the BEC.

run2jeepn · 12-28-2006, 06:56 AM

Drop the dough on a Good Servo set up. You don't have crap unless you and steer the rig. Save up the money and buy a good servo.

andrewmp6 · 12-28-2006, 08:11 AM

most use the hitec hs 645mg or some use the 1/4 scale ones which are high torque and cheap but big

bobbythebrain · 12-28-2006, 11:21 AM

run2jeepn I don't have a problem spending money on the good stuff, I just want to make sure I'm not doing something wrong before I spend the money and go through the trouble.

It's nice to know what others are using, nobody in my neck of the woods does this kind of custom hobby. Thanks for the reply andrewmp6. You say most use the 645, where do they typically mount it?

And if it's not big enough for the front can it be used for the rear steering?

dezfan · 12-28-2006, 12:04 PM

Try the JR9000T w/ 300+ oz's. for around $115.00.

Or the Tower Pro MG995 w/ 208 oz's. under $20.00 on the bay and a great servo!

run2jeepn · 12-28-2006, 12:06 PM

Or the Hitec 5955TG can handle 6 cells for 471oz torque. Or 5 cells for 333oz..$115 from Towerhobbies or thecrawlerstoer or RCP.

mr.maxx · 12-28-2006, 12:23 PM

Quote:

Originally Posted by dezfan

Try the JR9000T w/ 300+ oz's. for around $115.00.

Or the Tower Pro MG995 w/ 208 oz's. under $20.00 on the bay and a great servo!

I have 6 of the Tower Pro MG995 servos and they work great!! You can beat them for the price. The only draw back is the wait... If you order some I would get 3 or 4 because the shipping cost is the same for 1 as it is for 4...

Nicklepimp · 12-28-2006, 12:33 PM

Agreed... the 645 is ok for when you start out, but for difficult climbing, or comps they just don't stack up. I've stripped out the gears too many times, and the motor gets weak over time and are known to fry. I've switched over to a digital JR servo (I can't remember the model # off hand), and it's been great.

bobbythebrain · 12-28-2006, 01:15 PM

Thanks a ton guys, I know what I need to do now.

FiremanJim · 12-29-2006, 06:10 AM

I just went from a 645 in the front to a 5955 and love it,the rear is a 645 still and it stripped the other day.I need to replace the rear with something stronger.

lime · 12-29-2006, 08:40 AM

Quote:

Originally Posted by dezfan

Or the Tower Pro MG995 w/ 208 oz's. under $20.00 on the bay and a great servo!

do the tower pro servos need a voltage regulator to run or can i run two of them off of my tekin rebel 2.

thanks

dezfan · 12-29-2006, 12:16 PM

I ran two off a MOPED ESC, so a TR2 will have no issues at all!

lime · 12-30-2006, 11:49 AM

Quote:

Originally Posted by dezfan

I ran two off a MOPED ESC, so a TR2 will have no issues at all!

thanks for your help.

i ordered a couple to use in my super.

EeePee · 12-30-2006, 12:12 PM

Quote:

Originally Posted by bobbythebrain

It's nice to know what others are using, nobody in my neck of the woods does this kind of custom hobby.

I live in Columbus.

bluonyx · 12-30-2006, 10:36 PM

What servo horn is needed on the MG995's?

I've been trying to do a search and saw Futaba horns work but, I just want to be sure.

Thanks.

dezfan · 12-30-2006, 10:40 PM

Futaba.

skinner · 12-31-2006, 12:05 AM

heck the 645mg is crap....mine lasted 4 batterys worth

,i flipped the gear and put a servo saver on it for now.is the towerpro mg995 stronger than a 645mg for the $??

bluonyx · 12-31-2006, 09:04 AM

I bought these ones on Ebay.

http://cgi.ebay.com/ws/eBayISAPI.dll...7152&rd=1&rd=1

It says 208oz. @ 6V where the 645MG is rated at 133oz. @ 6V

HS-645MG on Tower for 39.99 each + shipping
2 MG995 on Ebay for $40.49 shipped. (That's for 2!)
I figued I'd give them a try, it's only $40 bucks.

12-27-2006, 06:26 PM	#1
bobbythebrain Newbie Join Date: Dec 2006 Location: Columbus Posts: 10	Servo Torque What's the concensus on getting the most torque out of your steering servo? I mounted a Hitec 645 (kimbrough saver), 109 oz on the left axle brace using a peice of angle aluminum for a bracket. The steering sucks. It has a huge turning radius and doesn't seem to have much power to turn the big stock tires. I did notice quite a bit of flex in the bracket. I wat to cure this issue before I get another serve for the rear.

12-27-2006, 07:03 PM	#2
dezfan I wanna be Dave Join Date: Dec 2005 Location: Happiness is a warm AK. Posts: 12,563	You need WAY more than 109 oz's. of torque. Try a servo w/ 200 oz's. of torque.

12-28-2006, 05:58 AM	#3
bobbythebrain Newbie Join Date: Dec 2006 Location: Columbus Posts: 10	Thanks for the reply I see other people using the same servo HS-645MG (133oz at 6v). Does anyone else use it with good results? If so what type of mount? Another question I have is about my ESC power. I'm powering the reciever from a Super Duty ESC. I'm not using the BEC but yet it powers the reciever through the throttle channel. Is that ok/normal? If ok, then is it 4.8v or 6v? Novak doesn't specify in the manual, it just talks about the BEC.

12-28-2006, 06:56 AM	#4
run2jeepn I wanna be Dave Join Date: Sep 2005 Location: USA Posts: 11,196	Drop the dough on a Good Servo set up. You don't have crap unless you and steer the rig. Save up the money and buy a good servo.

12-28-2006, 08:11 AM	#5
andrewmp6 Rock Crawler Join Date: Apr 2006 Location: louisville Posts: 814	most use the hitec hs 645mg or some use the 1/4 scale ones which are high torque and cheap but big

12-28-2006, 11:21 AM	#6
bobbythebrain Newbie Join Date: Dec 2006 Location: Columbus Posts: 10	run2jeepn I don't have a problem spending money on the good stuff, I just want to make sure I'm not doing something wrong before I spend the money and go through the trouble. It's nice to know what others are using, nobody in my neck of the woods does this kind of custom hobby. Thanks for the reply andrewmp6. You say most use the 645, where do they typically mount it? And if it's not big enough for the front can it be used for the rear steering?

12-28-2006, 12:04 PM	#7
dezfan I wanna be Dave Join Date: Dec 2005 Location: Happiness is a warm AK. Posts: 12,563	Try the JR9000T w/ 300+ oz's. for around $115.00. Or the Tower Pro MG995 w/ 208 oz's. under $20.00 on the bay and a great servo!

12-28-2006, 12:06 PM	#8
run2jeepn I wanna be Dave Join Date: Sep 2005 Location: USA Posts: 11,196	Or the Hitec 5955TG can handle 6 cells for 471oz torque. Or 5 cells for 333oz..$115 from Towerhobbies or thecrawlerstoer or RCP.

12-28-2006, 12:33 PM	#10
Nicklepimp RCC Addict Join Date: Apr 2006 Location: Minnehopeless Posts: 1,129	Agreed... the 645 is ok for when you start out, but for difficult climbing, or comps they just don't stack up. I've stripped out the gears too many times, and the motor gets weak over time and are known to fry. I've switched over to a digital JR servo (I can't remember the model # off hand), and it's been great.

12-28-2006, 01:15 PM	#11
bobbythebrain Newbie Join Date: Dec 2006 Location: Columbus Posts: 10	Thanks a ton guys, I know what I need to do now.

12-29-2006, 06:10 AM	#12
FiremanJim Rock Stacker Join Date: Dec 2006 Location: Jacksonville Posts: 67	I just went from a 645 in the front to a 5955 and love it,the rear is a 645 still and it stripped the other day.I need to replace the rear with something stronger.

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12-29-2006, 12:16 PM	#14
dezfan I wanna be Dave Join Date: Dec 2005 Location: Happiness is a warm AK. Posts: 12,563	I ran two off a MOPED ESC, so a TR2 will have no issues at all!

12-30-2006, 10:36 PM	#17
bluonyx Quarry Creeper Join Date: Oct 2006 Location: Simi Valley, CA Posts: 217	What servo horn is needed on the MG995's? I've been trying to do a search and saw Futaba horns work but, I just want to be sure. Thanks.

12-30-2006, 10:40 PM	#18
dezfan I wanna be Dave Join Date: Dec 2005 Location: Happiness is a warm AK. Posts: 12,563	Futaba.

12-31-2006, 12:05 AM	#19
skinner Quarry Creeper Join Date: Nov 2006 Location: out in boonies!! Posts: 349	heck the 645mg is crap....mine lasted 4 batterys worth ,i flipped the gear and put a servo saver on it for now.is the towerpro mg995 stronger than a 645mg for the $??

12-31-2006, 09:04 AM	#20
bluonyx Quarry Creeper Join Date: Oct 2006 Location: Simi Valley, CA Posts: 217	I bought these ones on Ebay. http://cgi.ebay.com/ws/eBayISAPI.dll...7152&rd=1&rd=1 It says 208oz. @ 6V where the 645MG is rated at 133oz. @ 6V HS-645MG on Tower for 39.99 each + shipping 2 MG995 on Ebay for $40.49 shipped. (That's for 2!) I figued I'd give them a try, it's only $40 bucks.

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Thread: Servo Torque