Well versed RC guys help

[Tech]

Hello,

I'm starting a build from scratch for those who haven't read my newbie thread. Mechanical stuff is my area of expertise, but the electronics is where I lack. I read a thread on here stating that the mamba max pro was the best ESC for crawlers. The thread was made over 3 years ago. Are these still the best ones for crawlers or have they been replaced by newer models already?

Also would like to know what motors will net me the most torque for longer durations. I will be running a dual motor setup for more weight. The dual motor setup means I can run weaker motors, which means a longer battery life correct? Or does the power come from the batteries?

I know enough to make myself sound really stupid, so enlighten me lol.

Thanks,
Tech

[tapped-out]

Comp rig or scaler?

IMO best advice is to read some newer build threads way to many options/combos.

[Tech]

This is just something I'm doing for fun. So scaler I assume.

Thanks

[Olle P]

Mamba Max Pro is still up there, for brushless motors.
You should use a brushed motor and then there are several cheaper ESCs to pick from: Tekin Fx-r is small and good. Castle Sidewinder have some good reviews. Holmes BR-XL is great. ... and there are quite a few more contenders.

[351Beno]

I love the castle stuff with the link you can change just about anything. sidewinder is cheaper and good for lighter rigs 3s or less. mmp is for anything up to 6s.

[fish-hunter]

Why would you want to run 2 brushed motors when there are much better options with plenty of power using a single motor. I think your making things way more complicated.

[JohnRobHolmes]

High torque, long durations, you will probably want a single brushless motor. You can easily add weight elsewhere to regain those 6 or 7 ounces.


The most popular combos we sell are MMP controllers and roc412 motors, or Holmes BLE controllers with 540S or 540 Puller Pro motors. 2200 to 3500kv ranges are where it's at.

[joe.bielski]

Keep it simple is the way to go. Like the others said, there are some great ESC's and Motors out there now that will be more than enough to power your rig.

What scale will your rig be? How heavy do you expect the rig to be? Do you want a fast or slow truck? Answer these and we can help narrow down your choices.

[Tech]

Its a 1/10 scale.
I'm going for a slow, heavy setup for traction with lots of torque.
As far as what I'm expecting how heavy it should be or what I'd want, I can't answer that just yet. But my goal is to have one act as close to a realistic rock crawler as possible.

I've been going through some of the threads, I found one on the gt3b that one of the members can "hack". Sounded fairly simple and extremely inexpensive compared to the others I've looked at. Thoughts on those radios?

I didn't even think about adding dead weight instead of a two motor setup. The rig will see rock, sand, mud and water. (I live by a lake) Brushed motors dislike all of this more so than a brushless motor, correct?

[joe.bielski]

Ok, here's my suggestion, go with a brushed setup. Brushless is great for faster trucks but you don't get the nice, fine control at low speed. ive run my brushed motors in everything. Totally submerged, sand, snow, dirt. The only thing it didn't like was really muddy water. But then I just took it apart and cleaned it out. For good low end torque and control maybe a 45T motor. Then you can play around with the gearing for sped or torque. Holmes hobbies motors are the best you can buy. Older integy motors are good and dirt cheap. The newer ones are crappier quality. For the ESC, try to find a used castle sidewinder V3, it's also water proof and will do both brushed and brushless. This also lets you run 2 cell or 3 cell batteries. Most run small 3 cell batteries and gear low. Great power and torque. I used to run a 2 cell 5000mah battery on a 45T motor and that gave me decent wheel speed (just faster than a walking speed), more than enough torque (twisted all my plastic drive shafts) and hours of run time on one battery (I'd get bored after 2 hours and still have loads of battery left).

Hope this helps

[Tech]

Originally Posted by joe.bielski

Ok, here's my suggestion, go with a brushed setup. Brushless is great for faster trucks but you don't get the nice, fine control at low speed. ive run my brushed motors in everything. Totally submerged, sand, snow, dirt. The only thing it didn't like was really muddy water. But then I just took it apart and cleaned it out. For good low end torque and control maybe a 45T motor. Then you can play around with the gearing for sped or torque. Holmes hobbies motors are the best you can buy. Older integy motors are good and dirt cheap. The newer ones are crappier quality. For the ESC, try to find a used castle sidewinder V3, it's also water proof and will do both brushed and brushless. This also lets you run 2 cell or 3 cell batteries. Most run small 3 cell batteries and gear low. Great power and torque. I used to run a 2 cell 5000mah battery on a 45T motor and that gave me decent wheel speed (just faster than a walking speed), more than enough torque (twisted all my plastic drive shafts) and hours of run time on one battery (I'd get bored after 2 hours and still have loads of battery left).

Hope this helps

This helped a lot. Like I said I know enough to sound really stupid on electronics lol.

[cartronicshn]

you will probably use a hi torque servo, so you will probably end up using a bec to feed that servo.

[Wade]

Here is the "lowdown"


ESC-----Castle creations sidewinder or MMP
Motor-----Holmes Hobbies
Servo----Hitec
BEC---castle creations
As far as "runtimes" I wouldn't be too concerned, Lipos are really cheap grab a few charge'm........ run'm....... and have fun'm



Now this is just my opinion,,,,,,,but its a good one

[Tech]

Ok, what size battery? there are 11.1V and 7.4V lipos im seeing, do I just find one that'll fit?

[Wade]

11.1 is (3s) a 7.4 is (2s) with a 3s you will most likely break more parts over time but you will have a smile from ear to ear. 3s will be faster, the MaH size is what determines the length of run time. I prefer using smaller batteries like 2200 mah 3s, it only takes a few seconds to change a battery but that is just me. Some people will buy a 5000 mah and run for a decent time. I just prefer running smaller batteries. The saying goes volt up gear down.


Cheers,
Wade