RC Radios, Transmitters, Receivers, Servos, gyros Discussion all about rc radios, transmitters, receivers, servos, etc.

New and ready to modify!

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Old 01-20-2011, 12:36 PM
  #1  
Pinkmisttt
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Default New and ready to modify!

Hey everyone. The guys are in a competition at work, "who can have the best crawler from walmart"!LOLSo, I just picked up a Maisto Rock Crawler. Ihave a budget of $200.00. What can i do to improve the range first of all, battery life, speed and torque? Ihate loosing and 6 ofus are compeeting. Surely for $200.00 Ican improve this thing a lot! Help me spend my money. This is the first RCtoy i've ever owned, so Ihave no idea where to start.
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Old 01-20-2011, 01:09 PM
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Default RE: New and ready to modify!

Here is an ad for it

http://www.rcmania.com/maisto-rock-crawler/

It does not show the insides so I cannot see how the radio is installed. If you can replace the Tx and Rx with something on 2.4Ghz, that is Full Range, you will have met the Range requirements. The ESC (Electronic Speed Controller), servos, and motor all have Current and Voltage requirements that will determine what type of battery choices you have. If you can use LiPo or A123 cells it would give you some options for battery life and charging time. If the servos are not replaceable than the only way you can improve Speed and Torque is to use the highest voltage the servos will allow.

It all depends upon what it comes with.
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Old 01-20-2011, 02:30 PM
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Default RE: New and ready to modify!

This is what i've come up with, I'm now to all this, so bare with me.

Controller and Rx

verridetablestylehps>verridetablestylehps>
http://www.hobbyking.com/hobbyking/s...dproduct=15140

ESC
verridetablestylehps>verridetablestylehps>
http://www.hobbyking.com/hobbyking/s...idProduct=6457

UBEC

verridetablestylehps>verridetablestylehps>
http://www.hobbyking.com/hobbyking/s...idproduct=6233

Battery Pack
verridetablestylehps>verridetablestylehps>
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Old 01-20-2011, 02:52 PM
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Default RE: New and ready to modify!

So you have a two stick transmitter and not one with a Trigger and a Wheel? Is that what came with the Buggy?

If that is what the Rx looks like you can surely purchase a Full Range Tx/Rx combo.

Is it really worth it to keep the Buggy and upgrade all the radio equipment?
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Old 01-20-2011, 03:56 PM
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Default RE: New and ready to modify!

No, it's a trigger and wheel, I just thought since i was changing it I might as well get a controller I liked to use. Is there a reason I cannot use it? Like I said, I have no idea what works with what.

I've taken the thing apart and the steering is run by a "standard motor FP130-CN/14135/DV, SMAD 020513 ROHS

and the front motor is a PF-130SV, 16140-38CB

Rear motor is the same as the front.
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Old 01-20-2011, 03:59 PM
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Default RE: New and ready to modify!

The circuit board in the Crawler has a Maisto part number:  63-40300-361907801-00  Date 2010  Rev1.1
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Old 01-20-2011, 04:38 PM
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Default RE: New and ready to modify!

For the most part, one manufacturer's 2.4Ghz radio will not work with another manufacturer's 2.4Ghz radio. If there is a Circuit Board in he Crawler, it probably means that the Rx is not removable.
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Old 01-20-2011, 04:54 PM
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Default RE: New and ready to modify!

From what i'm thinking, and correct me if i'm wrong, but can't I basically replace everything with hobby grade parts and have a good set-up?  meaning taking out the circuit board, motors, steering motor, batteries and modifing the chasis to accept all new hobby grade parts.  Im very good with wiring electronics and can run a dremel tool like nobody's business.  lol
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Old 01-20-2011, 05:05 PM
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Default RE: New and ready to modify!

When I first started building and flying control line model aircraft, in 1956, we found out that if you have enough power, you can fly a flat board. All I mean by that is that you can turn anything into a flying or driving model.

I have friends that scavenge the radios out of cheap foam electric RTF aircraft and stick them in small Free Flight planes and gliders to make them RC.

If you have the talent and imagination, you can easily gut the Buggy and upgrade the Radio, Batteries, etc. It is all about having fun.
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Old 01-20-2011, 05:31 PM
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Default RE: New and ready to modify!

That's what i'm thinking, i just don't know what will all work together.  the list of stuff i have above for example, will all that work together or will something start smoking and catch fire as soon as i hook it up?  lol  That's my real problem, I just don't know what motor will work with what Rx or ESC and so forth.
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Old 01-20-2011, 05:46 PM
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Default RE: New and ready to modify!

The important thing with Electrics is to be sure that the Motor and Esc are both rated for the Voltage and Current you intend to use. The Voltage depends upon how many cells are in the battery you are using. LiPos are usually 3.7v per cell, Nominal, and 4.2V per cell Fully Charged. LiPo batteries are rated for how much Current you can draw, either Continuously, or in a Quick Burst. LiPos are much lighter than NiCad and NiMh. 7 cell NiMh packs are 8.4v.

Picking the motor is tough if you have no idea where to start. Check with you LHS or RC Car enthusiasts for recommendations. You can't blow it up if you stay under the recommended Voltages and Current.

A Wattmeter is a good tool to hook up between the ESC and the Battery. You can gradually advance the Throttle and read the Current, Voltage, and Wattage. If it looks like you are going above the recommended Current and Voltage then you need to Stop and change something.
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Old 01-20-2011, 06:02 PM
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Thank you VERY much BuschBarber.  You've been a HUGE help.
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Old 01-20-2011, 06:29 PM
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You are welcome!!
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Old 01-21-2011, 07:44 AM
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ORIGINAL: Pinkmisttt

That's what i'm thinking, i just don't know what will all work together. the list of stuff i have above for example, will all that work together or will something start smoking and catch fire as soon as i hook it up? lol That's my real problem, I just don't know what motor will work with what Rx or ESC and so forth.
Hello Pinkmisttt,

A good part of the fun in this hobby is to learn more and more as we go along.

At the beginning there is a lot to learn and it is easy to find the information.

As one gets into the higher levels of knowledge it becomes more difficult to find the infomation.

BuachBaber and his close friends are an invaluable source of information with years of experience and the ability and willingness of helping out people.

It has become nearly a career for Busch and It appears that he delights in it.

He deserves many thanks and gratitude for his time in researches he makes for the beginner or the inquirer.

The main thing that Busch and I have in common is that we are both old timers much older than we wish to be .

I think I could be his father ___if I guess his age correctly,I am not kidding.

Zor
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