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01-19-2005, 05:20 PM | #1 |
Rock Stacker Join Date: Jan 2005 Location: In a van down by the river
Posts: 51
| 1/4 scale servo on stock txt-1?
wondering if a 1/4 scale servo limits the suspentions movement on a stock txt? or if it will hit the bumper with the axle up?
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01-22-2005, 07:33 AM | #2 |
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i use that setup with my txt, it doesnt limit the travel at all -Chris |
01-22-2005, 05:15 PM | #3 | |
I wanna be Dave Join Date: Feb 2004 Location: Columbia Gorge
Posts: 5,512
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Why would you want to run a 1/4 scale servo? They are not very efficient nor do they supply any advantages over a GOOD 1/10 scale servo. 1/4 scale servos need power.... you'll need to run a reciever pack to keep play time long enough. I've ran 1/4 scale servos in the past, and will never run them again..... well..... maybe but only if I ever decide to build another BIG truck. | |
01-23-2005, 09:10 PM | #4 | |
Quarry Creeper Join Date: Feb 2004 Location: Mobile AL
Posts: 217
| Quote:
There is no servo out there thats very efficient, plus you can get 2 1/4 scales for the price of 1 standard servo, plus a good standard servo has to be digital forcing you to buy and expensive radio, 343 oz/in of torque for 55 bucks on both ends of the truck you cant beat that... plus with 2 stadard size servos require a reciever pack also... just my 2 cents... Later Jake | |
01-23-2005, 09:41 PM | #5 | |
2006 2.2 National Champ Join Date: Dec 2004 Location: Big Bear Lake
Posts: 8,328
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01-28-2005, 02:18 PM | #6 | |
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first of all, I can get not one, but *TWO* for $57.98 (http://www2.towerhobbies.com/cgi-bin...?&I=LXLN93&P=7) for price comparison, the cost of *ONE* HS-945MG servo (which is not the best 1/10 scale servo by any means, but decent, so i will use it for servo comparison) is $72.99 (http://www2.towerhobbies.com/cgi-bin...?&I=LXNZ35&P=7) so, 2 of them will be $145.98 ok, now you may say that 1/4 scale servos require a receiver pack which is true, even so, a good receiver pack is only $30 (http://www2.towerhobbies.com/cgi-bin...?&I=LXFPY8&P=7) also, running 2 DIGITAL 1/10 scale servos will also NEED a receiver pack for best performance, even when using a super rooster. However, if you do not agree with this, going with 1/4 scale servos still puts you ahead $58.00 even with the added cost of a receiver pack aside from the price advantages 1/4 scale offers, here are the rest: -heavier, which means more weight on the axles which equates to more traction and stability -much larger nylon servo horn with teeth that could be considered 48-pitch (you will never strip a 1/4 scale servo horn) -way more torque: 1/4 scale Hobbico CS-80 has 343oz/in at 6.0volts HS-945MG has LESS THAN HALF of that at 153oz/in at the same voltage -the Hobbico CS-80 has a .14sec transit time, the HS-945MG has a .12sec transit time, a difference so little that it need not be a factor, not to mention that in rock crawling, it does not matter how fast you can steer Hopefully by now, with these FACTS presented, you have seen the light of 1/4 scale servos -Chris | |
01-29-2005, 12:05 AM | #7 |
2006 2.2 National Champ Join Date: Dec 2004 Location: Big Bear Lake
Posts: 8,328
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Rockeater does your RX pack last as long, w/ two 1/4 scale servos, as your stick pack? If so, how many packs can you run before you need to charge RX pack? You also need a charger for RX pack. I just think if you build strategically, and keep weight of your rig reasonable, you can get away w/ 1/10 servos. I wouldn't spend money on SR if your going to use RX pack. There are also guys here that run clods w/ 2 lathe motors and two 1/10 scale digital servos off just SR w/ out any problems. Your adding a lot of bulk/weight running two 1/4 scalers and an RX pack. Just my opinion though. ;)
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01-29-2005, 01:23 AM | #8 |
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my RX pack lasts about 3 runs with the stick pack, i charge both batteries at once using a Duratrax Intellipeak Dual charger, which i got for $50 i guess your right in the fact its possible to 'get away with' using 1/10 scale servos depending on your situation, however, to get 1/10 scale servos that match the performance of 1/4 scale, be prepared to spend a good $200 on a pair of servos to me, it just makes more sense to stick with 1/4 scale for the reasons i mentioned earlier in this thread -Chris |
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