You will still have plenty of power with the axi, but the torque will be lower since the motor diameter is smaller. The runtime will be longer with the 2212 as well. Boils down to how much power you want to have in reserve.
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OutRunner brushless motors?
- Thread starter microgoat
- Start date
- Status
K_B
I wanna be Dave
Decisions, decisions... I guess I'll just have to give the AXI a whirl and see what happens! Hopefully this weekend! I spent last weekend working over my spool with a dremel. Hardened steel sucks to work with...
stearmandriver
Newbie
Hello gents:
I am a brushless airplane and heli guy building my first rock crawler. TLT based.
I understand and have read every post in this thread. I will be using some of my 11.1 volt lipos with a UBEC. From what I have gathered it seems a slightly larger brushless is desirable. I am looking at the Park 450 890kv motor. How do you feel this would work? Could you recommend a suitable sized AXI. I think the 22 series is slightly small. A 28 something AXI would be nice, or am I going to big?
ESC duties will be performed by the Mamba-25 and castle link.
Thanks
Dave Hughes
I am a brushless airplane and heli guy building my first rock crawler. TLT based.
I understand and have read every post in this thread. I will be using some of my 11.1 volt lipos with a UBEC. From what I have gathered it seems a slightly larger brushless is desirable. I am looking at the Park 450 890kv motor. How do you feel this would work? Could you recommend a suitable sized AXI. I think the 22 series is slightly small. A 28 something AXI would be nice, or am I going to big?
ESC duties will be performed by the Mamba-25 and castle link.
Thanks
Dave Hughes
the shtick
Newbie
Hey !!!!!!!!!!!
just wondering if you guys are gona post a "review or how to" with a list of components that are needed to get up and running with brushless?
just asking for the reeeeeeeaaaaaaly lazy people who hate to read....i'm just sayin:roll: i'm not one of those people :mrgreen: i'm just makin sure THOSE people are covered;-)
thanks
just wondering if you guys are gona post a "review or how to" with a list of components that are needed to get up and running with brushless?
just asking for the reeeeeeeaaaaaaly lazy people who hate to read....i'm just sayin:roll: i'm not one of those people :mrgreen: i'm just makin sure THOSE people are covered;-)
thanks
dezfan
I wanna be Dave
the shtick said:
First, buy a Brushless ESC and motor.
Then install it.:mrgreen: Finally enjoy!:twisted: Does that help?;-) :lol: This had been the reeeeeeeaaaaaaaly lazy "how to".
K_B
I wanna be Dave
stearmandriver said:
Sounds like you're on the right track. I have a Axi 2212/26 and I think it is gonna be a tad weak so the Park 450 might be the way to go as long as you're using your lipos. The Axi 28s might be too big. These things have lots of torque so you'd be surprised at what these motors can do in a crawler.
If you wanna save some dough, that dude johnrobholmes has some outrunners that he sells for $50 that are pretty much perfect for crawling (so I've heard). I THINK they are roughly the same size as a Park 450...
K_B
I wanna be Dave
dezfan said:First, buy a Brushless ESC and motor.
This had been the reeeeeeeaaaaaaaly lazy "how to".
That is the best how-to.... ever....
stearmandriver
Newbie
Thanks KB, Mr. Holmes is very close to getting my order. I was just curious about the 450 or equivelant AXI. Do you have any experience with water and brushless motors? I can protect the speedo but I am a little nervous about the motor.
Thanks
DAve
Thanks
DAve
dezfan
I wanna be Dave
K_B said:That is the best how-to.... ever....
Thanks!:lol:
K_B
I wanna be Dave
I haven't run mine in water and I don't plan to. I am very leary of getting crud in a $60 motor. I have a brushed setup that I'll use for the mud. Better to gum up a $20 lathe motor than my fancy schmancy AXI
stearmandriver
Newbie
Roger That! Although I do think given the relatively simple internals of the brushless motor, (ie: no brushes, springs etc.) cleaning the little booger out would be easy. When I finally figure which motor to go with I will do some testing a report back. High pressure contact cleaner works miracles.
stearmandriver
Newbie
Hows the weather up in Anchorage? I am an airline pilot for a living with African bush flying experience early on in my career. Every time I meet someone living up there I wish I were flying Super Cubs for a living. Probably couldnt afford RC though. ;-)
Sorry for the off topic!
Sorry for the off topic!
K_B
I wanna be Dave
I can finally drive the Jeep with the top down! I have friends who fly for a living. One was a bush pilot and hated it. Like you said; no money. Not to mention the isolation. Now he flies Citations on med-evac duty. And he makes $$$$.
To keep things on topic, I was thinking the same thing about the motors, but I'm too chicken to test it I do have a Park 370 in a VMG I might consider drowning. The nice thing about 'em is that they're so easy to take apart too, so if they can survive a swamping (or two, or three), they'd be easy to clean. And muddy trail riding is much easier to get to for me. Otherwise I gotta drive, and with the price of gas, that's less likely to happen. This hobby is costing me enough already!
To keep things on topic, I was thinking the same thing about the motors, but I'm too chicken to test it
I do have a Park 370 in a VMG I might consider drowning. The nice thing about 'em is that they're so easy to take apart too, so if they can survive a swamping (or two, or three), they'd be easy to clean. And muddy trail riding is much easier to get to for me. Otherwise I gotta drive, and with the price of gas, that's less likely to happen. This hobby is costing me enough already!microgoat
I wanna be Dave
I'm a bit leery of the larger outrunners with the Mamba, since they stall at more than 25 amps. It is possible to stall an outrunner, huge torque aside, and when you stall one of these motors, the amp draw goes right up to the motor's maximum to try to get it going again.
Looking at the Park 450 and the 28-series Axi's, you have some 30-amp draws there, and those will smoke a Mamba. The 22-series Axis, with their 12-amp stall amps, aren't going to tax the Mamba. Wonder if there's a Park 425? :lol:
When the Mamba Max 1/10 brushless ESC comes out, we'll have a lot more outrunner options, but it's bound to be heavier and spendier.
Another option with the larger outrunners is the Quark ESC's. But that rules out the Mamba-Link.
Another disadvantage to the larger motors is the need for a 4 or 5mm pinion gear.
Oh, and water? File under B for Bad Idea.
Looking at the Park 450 and the 28-series Axi's, you have some 30-amp draws there, and those will smoke a Mamba. The 22-series Axis, with their 12-amp stall amps, aren't going to tax the Mamba. Wonder if there's a Park 425? :lol:
When the Mamba Max 1/10 brushless ESC comes out, we'll have a lot more outrunner options, but it's bound to be heavier and spendier.
Another option with the larger outrunners is the Quark ESC's. But that rules out the Mamba-Link.
Another disadvantage to the larger motors is the need for a 4 or 5mm pinion gear.
Oh, and water? File under B for Bad Idea.
Last edited:
stearmandriver
Newbie
Thanks microgoat! I will bypass the bigger motors and order the Revolver.
Dave
Dave
cartronicshn
I wanna be Dave
guys don't flame me:mrgreen: , i'am new on the crawling scene:neutral: , i've done some reading on this thread, but need help on buying motors for my clod, what brushless, esc combo is most recomennded? i see the mamba and some outrunners and some other motors in here, but i'am looking to get the best low end set up for crawling:mrgreen:
Dont know where to start here, but..
Water is cool for the motor, not the esc. The motor is just a three phase AC motor and as long as no grit gets inside and there are no shorts everthing is cool.
I think the mamba 25 is much tougher than we think. I have run a 2820 (twice as big as my Revolvers) on the mamba with 6 cells, 40:1 geardown with maxx tires. It was fast, the outside temp was hot, but the mamba didnt get past 155F. Even when the motor stalled out nothing smoked, but there isnt too much worry of stalling out a 1/2 horse outrunner. It is overkill for almost any crawler though. I dont think the mamba would take more than 6 cells on that motor.
Motors to use, any will work, but I find the 28mm diameter stators much better compared to the 22mm stators. Just personal preference though. I have run the park 450, 400, and 370 in crawlers (all 22mm stators, all on mamba 25) and they all worked, just at a power loss.
Water is cool for the motor, not the esc. The motor is just a three phase AC motor and as long as no grit gets inside and there are no shorts everthing is cool.
I think the mamba 25 is much tougher than we think. I have run a 2820 (twice as big as my Revolvers) on the mamba with 6 cells, 40:1 geardown with maxx tires. It was fast, the outside temp was hot, but the mamba didnt get past 155F. Even when the motor stalled out nothing smoked, but there isnt too much worry of stalling out a 1/2 horse outrunner. It is overkill for almost any crawler though. I dont think the mamba would take more than 6 cells on that motor.
Motors to use, any will work, but I find the 28mm diameter stators much better compared to the 22mm stators. Just personal preference though. I have run the park 450, 400, and 370 in crawlers (all 22mm stators, all on mamba 25) and they all worked, just at a power loss.
microgoat
I wanna be Dave
Wow, I had no idea the Mamba would support a 2820 :shock: Can you say overkill?
Proving once again that JRH is the MAN when it comes to brushless :mrgreen:
Proving once again that JRH is the MAN when it comes to brushless :mrgreen:
I only tried it because I didnt know what I was doing at first :lol:
Actually I did some digging before hand, and the motor listed 40 amp burst current. That tells me it can take 40 amps for 30 seconds before it overheats. The mamba takes 50 amps burst before it overheats. I just watched the heat like a hawk for the first 10 minutes, and nothing ever got past 160F. Again, this was on 6 cells.
Actually I did some digging before hand, and the motor listed 40 amp burst current. That tells me it can take 40 amps for 30 seconds before it overheats. The mamba takes 50 amps burst before it overheats. I just watched the heat like a hawk for the first 10 minutes, and nothing ever got past 160F. Again, this was on 6 cells.
cartronicshn
I wanna be Dave
thanks on the info , how about a place that i could get a good deal on this parts, help please:? , i just paid for 2 55t's, then dez told informed that brushless was the way to go:shock: , right after i had placed a bid on the lathes:x , i will be running the clod stock for a month or so before i dedide what chassis to use, i already have a set of 7.7" fireball tires, ordered the spacers for them and a esc for the lathes, but i need some advice on what to run with brushless for my project:mrgreen:
, how about a place that i could get a good deal on this parts, help please:? , i just paid for 2 55t's, then dez told informed that brushless was the way to go:shock: , right after i had placed a bid on the lathes:x , i will be running the clod stock for a month or so before i dedide what chassis to use, i already have a set of 7.7" fireball tires, ordered the spacers for them and a esc for the lathes, but i need some advice on what to run with brushless for my project:mrgreen: - Status
