Quote:
Originally Posted by Rimrock
I suggest to use more time studying building threads of similar sized loaders at the web before buying too much stuff. Problem 1 is often one does not get enough power on the wheels at first try, or the correct speed. Don't know how you are planning setting up the drivetrain, there are 2 options;
- 1 off gear motor on each wheel, like the 'Le Tournau' equipment. The axles are made of tubes, and the gear motors are installed in the tubes.
- 1 main gear motor and 2 off axles with differentials, like Tamiya truck axles, all linked with shafts/universal joints, like the RC4WD loader
If it's about 4-5'' diameter wheels, around 50-60 rpm is suitable. The gear motor you are linking to are weak, probably a 1'' diameter, not suitable in a loader. If going for 1 off main motor, you will be looking for 540 size motors, 37mm diameter. If going for 1 off gear motor on each wheel, there are some motors 28-32mm diameter that can be suitable. 37mm diameter is even better, but might give quite low ground clearance for your size of loader.
The voltage is like the pressure the current is pushed into the motor, like hydraulic pressure is given in Bar. 7.2 V and 12V is the standard in this hobby. Voltage is given in the description of the motors, same with ESC, then one choose a battery with the correct voltage and size fitting into the model.
Dual shaft motors is some specialized stuff, often high cost, mostly used for industrial purposed. One can hook up to the motor in both end of the shaft, and possible save some space when it comes to gearboxes etc. Forget about that for a RC loader. If going for a single main motor, one connect that motor to a gearbox, and the gearbox then have dual shafts, for rear and front axles
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ya as for drive you should see if you can find a rock crawler for a drive train. that way all of your gear box axles and drive shafts are there for you and its easyer to get the speed and power you want out of it. or do like i did.
drive train=
1. a rc4wd r2 tranny
2. 2 single out put tamiya axles for semi trucks
3. 4 traxxas metal u joints and a set of drive shafts
4. 65t crawler motor .
6. castle creations sidewinder v2 esc.
radio/ power =
1.tatci ttx650 6 channel radio
2. tatic tx55 servo(steering)
3.castel creation bec.
hydrauics=
1.magom hrc mini pump with motor.
2. 2 bags of magom hrc 3mm hose
3. 2 robart 3/8 x2.1/2 in cyclinders
4 1 5robart 5/8 x 2" cyclinder
5. 2way valve set magom hrc
6. one duritracs brushed forward only esc ( for pump motor)
battery=
1. 5000 mil 2s lipo
2. 1 radio shack rechargable 9v (lights)
lights/wire =
traxxis led replacement leds
bag of deans wet noodle wire
deans plugs
lhws heat shink
good thin solder
60w soldering iron
thats my basic setup
now tires wheel and the rest is up to you, do the research. you'll get it worked out.