Losi 1/10 motor on axle (moa) start thread

[thumper17]

Could some of you guys/gals with MOA conversion crawlers, maybe put some of your knowledge and post/present experiences and maybe a build thread too?. I myself am interested in building one, just need the expertise from one our crawling members here. That would be great!! Thanks.

[kwkride]

Well mine is fairly new. I finished building it last Friday and ran a comp with it the next day. I made the finals (against 2 other Losi MOA rigs) and managed a 3rd place finish. I am very happy with it right now.
I am running:
Castle Sidewinder ESC
Castle BEC
Hobbico CS-170 Servo
Dual Integy 35t Motors
I made the dig with a
Hobbico CS-12mg Mini Servo
and 2 momentary switches from Radio Shack

And of course the Eritex Inc MOA kit (http://www.eritexinc.com).

Here are a couple of pics of the motors mounted up to the axle.

http://myrcmt.com/review/images/gallery/albums/userpics/10015/normal_IMG_1488.JPG

http://myrcmt.com/review/images/gallery/albums/userpics/10015/normal_IMG_1492.JPG

Feel free to ask questions.

[Rara]

I'm new to crawling and find MOA concept interesting.
What are the advantages of MOA?
Less sprung weight?
Simpler dig?

[kwkride]

What are the advantages of MOA?

You are on the right track, it does lower the sprung weight and provide the option of a simple dig setup.

You are eliminating the transmission / slipper setup and lowering the center of gravity.

Some people are running a dual ESCs with their MOA setups allowing you to have independent throttle control over each axle.

There is the drawback of dealing with "Clod stall" though. A simple explanation of this is that if you are climbing up an incline, the rear motor has more of load on it. So if you hold the throttle at a set position on an incline you may see the rear motor slow down or even stall. Experienced crawlers can even use this as an advantage sometimes though. Sometimes it's nice to have the rear wheels turning slower on an incline so that the rig doesn't flip over backwards.

[thumper17]

You are on the right track, it does lower the sprung weight and provide the option of a simple dig setup.

You are eliminating the transmission / slipper setup and lowering the center of gravity.

Some people are running a dual ESCs with their MOA setups allowing you to have independent throttle control over each axle.

There is the drawback of dealing with "Clod stall" though. A simple explanation of this is that if you are climbing up an incline, the rear motor has more of load on it. So if you hold the throttle at a set position on an incline you may see the rear motor slow down or even stall. Experienced crawlers can even use this as an advantage sometimes though. Sometimes it's nice to have the rear wheels turning slower on an incline so that the rig doesn't flip over backwards.

Thanks Jim, and all the rest of you guys for expertise with this type of setup. I was just wondering if you have to run 2 esc's or if you do it with one what are the drawbacks?. Looks like the moa has a huge advantage on steep inclines, being that the cog is much lower and puts more weight down low where you need it. Thanks guys!!!

[kwkride]

I am running it with one ESC. The advantage is less cost, the disadvantage is that you cannot control each motor independently. So far this has not been an issue for me.

For the dig, I have a Hobbico CS-12mg Mini Servo with two momentary switches. This can cut the power to either motor. Since the worm gear axles cannot coast, cutting the power to the axle locks it and creates your dig. It's a very simple setup.

[thumper17]

I am running it with one ESC. The advantage is less cost, the disadvantage is that you cannot control each motor independently. So far this has not been an issue for me.

For the dig, I have a Hobbico CS-12mg Mini Servo with two momentary switches. This can cut the power to either motor. Since the worm gear axles cannot coast, cutting the power to the axle locks it and creates your dig. It's a very simple setup.

Thats great news Jim. I was trying to figure out how I'm going to mount two mamba max's since I have two of these. I have one tekin fxr-pro hanging around as well, think I'll use that one instead. Are the majority of moa's running brushed motors? or have you seen anybody run two brushless motors?. I imagine that cost is the key factor here. I just have to order the eritex kit then, I have two 35turn HH brushed motors which should do me fine!!. Thanks for all your input so far, It's great to have this Losi specific site for us here!!. Thanks, Dan.

[catpwred]

here's another idea for all of u that have moa'ed ur losi's :eek:

[Tommi]

here's another idea for all of u that have moa'ed ur losi's :eek:

I found it funny they still call those thingys LCC? Whats left with original roller, axles and mayby shocks?

[GreenZ]

I found it funny they still call those thingys LCC? Whats left with original roller, axles and mayby shocks?

Plus the MOA doesn't run as good as a stock Losi crawler. I'll save my money and not waist it on something that wont help performance. :p

[jim]

Any of you guys that are running the losi moa compared it to a berg moa? Is there a noticeable difference?
jim

[kwkride]

Any of you guys that are running the losi moa compared it to a berg moa? Is there a noticeable difference?
jim

I have not actually driven a Berg, but I have beat several. :D

The one advantage that some of the Bergs seem to have is more ground clearance in certain breakover situations. The main difference is probably still going to come down to the driver.

[freakofnature]

go out and buy the newest edition of the rc driver crawler edition and read the lcc moa conversion that chris long did. or sign up at gsrcrc.com and talk to a fella named artc1k he knows a lot about moa and what not

[losikid]

i've got the MOA kit and it preforms better than the shafty other than the clod stall. I'm running Holmes Hobbies Cobolt 7t Puller motors (My favorite motor, loads of speed and even more torque) Dual Holmes Hobbies BR-XL ESC, dual 1300 25c 3s batteries, and a dx6. Only disadvantage The LCC MOA has is that the ground clearance isn't as high as the other moa kits but it isn't that noticeable it still smokes bergs and bullies out of the water

[LJ(Josh)]

Did they stop making the MOA kit for the Losi?? I can find where you can get it.. Any help would be great.. I love my worms and would really like to do a MOA.. Best of both worlds..:D

[LJ(Josh)]

Thanks for any info on this...

[kwkride]

TCS Crawlers has one (http://www.tcscrawlers.com/Eritex-Losi-Motor-on-Axle-Conversion-p-17945.html) in stock right now.


Here's some recent pictures of my Losi MOA

http://i301.photobucket.com/albums/nn80/kwkride/CSC%202011%202_2%20Class/IMG_0077.jpg

http://i1111.photobucket.com/albums/h467/relic68/SAM_0990.jpg

[LJ(Josh)]

Thanks for the info on the MOA kit.. How do you like it?? I have been looking hard at getting a XR-10 but I just really love the worm gears on my comp.. It just keeps having motor heat problems.. I'm running Novak rooster Crawler ESC and Novak 55T motor.. It has way to slow wheel speed and the motor gets super hot after about a 10min. run.. It is driving me crazy.. I guess that is what you get for buying a used set up.. Any other help you guys can give me would be great.. I am very new to the sport.. I really enjoy crawling..:D Some suggestions on motors and Dig set up would be great..??? I would like to try to stick with my DX3E radio if possible.. I just bought it not long ago to make use of the dig on my crawler's Losi trans.. The guy I bought this comp from never set it up.. Because I was so new to crawling I didn't know what all to look for when I was looking it over so he got over on my some things.. I ended up paying to much for this comp..:mad: Oh well lesson learned.. No worries!!! I won't happen again tho.. :cool:

[kwkride]

I really like running mine as an MOA. I have 35t motors running on a 3s lipo.

If you are running a 55t motor it will get very hot and the motor won't last long.
The LCC transmission and axles are geared so deep that you are spinning that motor really fast to get the rig moving. It was designed to work with a brushless setup. Some people have had decent luck with running a much faster brushed motor. (19t or faster).

[LJ(Josh)]

Do you run 1 or 2 esc's and how do you have your dig set up??

[kwkride]

Do you run 1 or 2 esc's and how do you have your dig set up??

I was originally running a single ESC with a dig switch.
I am now running dual Sidewinder ESCs with a wantAsummit dig/mixing unit (http://www.rccrawler.com/forum/showthread.php?t=307196).
This allows me to control the speed of each motor independently with my DX3R radio.

[LJ(Josh)]

Thanks for all the info..:D Hope I haven't been to much of a bother..:cool:

[kwkride]

Thanks for all the info..:D Hope I haven't been to much of a bother..:cool:

Not a problem, ask all you want! :D

[shack 166]

Anyone ever fool with brushless moa? I Have The 21.5 Goat 3s system and enjoy the power and want to keep the motor.

[kwkride]

Anyone ever fool with brushless moa? I Have The 21.5 Goat 3s system and enjoy the power and want to keep the motor.

I don't know anyone personally that's tried it, but I'm sure it could be done.
You'll have to let us know how it works out.