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04-20-2006, 07:25 PM
| #1 |
| Newbie Join Date: Jan 2006 Location: kansas city
Posts: 24
|  steering servos
i am still new here and my searching hasnt lead me far. i blew my steering servo today on my max project. i need some advice on servos. i want some good torque but dont wanna spend a fortune. i will be running them through a "y" harness for 4ws. the one i broke was a jr650m. the stock traxxas and jr combo wasnt that great anyways. the traxxas wont turn under and pressure. by the way i am stretched to 16" and running spools. thanks |
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04-20-2006, 07:51 PM
| #2 |
| I wanna be Dave Join Date: Feb 2005 Location: Cleveland, OH
Posts: 8,009
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JR makes a clone of their 650 in their JR Sport line, called the ST125MG. It's got metal gears and 142 oz torque at 6V. $33.95 with a 3-year warranty. Your Z650 is probably covered by the warranty, too, if you can dig up the receipt. I have killed a couple ST125's on my Kyosho Turd Crawler by not using a servo saver. The first one was replaced at no charge. The second one, I'm having second thoughts about sending back. It's obvious that I'm abusing the things (they only lasted a couple minutes) and I don't want to be That Customer. Put a servo saver on and haven't had any problems burning up servos, but you won't turn the wheels in every situation. For huge torque, look into a 1/4-scale servo. As the name implies, they're huge, and not all that spendy, but there are more powerful servos in a standard size case. You'll spend more money, though. With servos, you generally get what you pay for, and pay for what you get. How heavy is your rig? |
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04-21-2006, 03:30 PM
| #3 |
| Newbie Join Date: Jan 2006 Location: kansas city
Posts: 24
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rig is kinda heavy, and i dont think you can get a replacement from them for the abuse it took. i broke the gears clear out of it. i will look into the 1/4 servos. my lhs just has outlandish prices. |
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04-21-2006, 03:39 PM
| #4 |
| Pebble Pounder Join Date: Jun 2005 Location: Rockwell, NC
Posts: 131
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The JR 125mg is junk fried two of them before i even hit the rocks. Went back to the 645mgs.
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04-21-2006, 03:48 PM
| #5 |
| Newbie Join Date: Jan 2006 Location: kansas city
Posts: 24
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i'm kinda new to this , what is the 645mg? |
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04-21-2006, 04:42 PM
| #6 |
| I wanna be Dave Join Date: Feb 2005 Location: Cleveland, OH
Posts: 8,009
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645MG is Hitec's metal-gear servo. I've heard lots of horror stories about those not centering properly. Anyone had that problem?
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04-23-2006, 10:12 AM
| #7 |
| Pebble Pounder Join Date: Jun 2005 Location: Rockwell, NC
Posts: 131
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As long the batteries not dead they work good.
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04-23-2006, 05:30 PM
| #8 |
| I wanna be Dave   Join Date: Feb 2005 Location: Burnsville
Posts: 3,096
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645mg's are great for low budget 2.2's and maybe a Super, but they do not come close to a quality High torque digital servo. I can't stand the term, you get what you pay for, but so far that's how it has been for me with servos. I think one of the most important components for crawlers and r/c in general are the electronics used in the vehicle. So I say get the highest amount of torque you can afford. There are quite a number of guys from SERCRC that run 1/4 scale servos and do really well with them. |
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04-23-2006, 07:18 PM
| #9 |
| I wanna be Dave Join Date: Jan 2006 Location: Albuquerque
Posts: 2,206
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This is really true. I finally invested in a Hitec 5955 for my maxx crawler and man does that thing move those tires. A couple guys thought my tires were loose with how easily it moves them. Now I just need to put my moabs on that rig and I'll be set. |
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