Oh, No, LOOK what I went and did...

All discussions about 1:18 scale and up electric offroad RCs.
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Mazda787b
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Post by Mazda787b »

What do you mean in trust? As long as you charge li-po packs at the correct rate, everything will be fine. You are still planning on running a mamba, right? The Mamba M-25 ESC has a adjustable low-voltage cutoff that they implimented for running li-po packs. I would recommend the Great Planes Triton charger. It charges any battery out there and is $120 at tower. By all means do NOT buy a MRC charger, the new 969 has problems charging lithiums, and is the main culprit of overcharge mishaps.
There's no replacement for displacment.
sg219
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Post by sg219 »

I want the Intellipeak ICE. It charges everything that I might buy or use in the future. :cool:

Just like the JR XS3 Pro Radio I want. It'll run things that I don't even have yet.

I just haven't really seen enough positive and idiot-proof Li-poly info to make them my first choice. Especially since I'm still new to the larger scale of RC. I want to keep it simple first, then I'll move onto the Li-poly after I get familiar with the norm first.

I don't want to burn my house down with the first charge. :-(

It'll be one year for me in January for being into RC's, and I started with 1:64th and Bitpimps as my info source. Now I'm reading things all over the place and dealing with 4 different scales, less than a year later.

After all that, I finally had the time, patience, and confidence to do my first dual cell in a bit last week.




Just like my RC scale progression....

1:64th then...
1:43rd then...
1:2xth then...
1:18th then...
1:xxth then...

Gotta :walking: before you :driving:..............
gnubee
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Post by gnubee »

sg219 wrote:Um...Not really. Not until Li-poly's become as easy to use and TRUST as Nimh's.


Right now I want to use an 8-cell set-up.
the batts and chargers are easy to use and trust.

the performance with lipo is so much better that i beg you to reconsider.
from your work you clearly are the type of person who is willing to be careful and diligent-you take your time and pay attention to what you are doing.
anyone anal retentive enough to de-anodize his aluminum aftermarket parts wont make the mistakes that cause the problems in the first place.

all you have to do is:
never dead short the battery (causes fires w/nimh too!)
always confirm output settings on charger (causes fires w/nimh too!)
never charge the battery in the toy (also good advice for any battery)
program your mamba esc one time for voltage cutoff

what you get is almost double the runtime as lipos give up the juice at full amperage and voltage until they are almost exhausted.
less or no cogging
less weight for the same voltage and capacity

b-p-p.com can set you up with a 3s tp1900 and a charger for $99.

http://www.b-p-p.com/Mini-TBatteriesandChargers.htm
Last edited by gnubee on Tue Dec 07, 2004 10:22 am, edited 1 time in total.
sg219
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Post by sg219 »

Put up the link. I'll check it out.

I'm not saying I'll never use then, I just didn't want to as a first time thing.


What a line this is.....
gnubee wrote:anyone anal retentive enough to de-anodize his aluminum aftermarket parts wont make the mistakes that cause the problems in the first place.
...I guess you sorta have a point on that one. :geek:
sg219
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Post by sg219 »

Anyone heard from LordDevo recently? He hasn't posted since Nov. 6th...

I want to see his Mini-T with the Aluminum chassis. :search:

I gotta PM him to see what's up. :???:
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midget_man1387
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Post by midget_man1387 »

ok sg, wtf is up?? Tell me you didn't pussy out on us...
sg219
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Post by sg219 »

No, I didn't. I've just been spending cash on other things....

T-Maxx
XXX-NT
MRS4
Xmod alloy (as long as CJ can get what I want, I will buy it)
Collecting Bit-Char-G's


I spent $600 to get 2 nitro's and a ton of parts with a value of around $1,500 or so. Now I need them both to run properly.

Plus, other stuff. :cool:

I haven't kicked the Mini-T to the curb. Its right there every moring to remind me to finish it.

I don't have much to go to finish it. About $300-400 more in parts and electronics.

Needed...

TX
RX
Axles
Mamba ESC
Mamba motor
Paint the body I have.
...and some other small parts.

Plus a little more polish and de-anodizing. :greenblob:

...and if all goes well, a big surprise!!!!! :wink:
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midget_man1387
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Post by midget_man1387 »

lol I may be on the way to owning a mini-t. I doubt it will be quite as bling as yours but I might be getting it for $85 with upgrades!
sg219
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Post by sg219 »

Damn, I just traded my stock Mini-T away to Hazmat for a Subie Epoch and a non-running IW04.

I would have hooked you up with it cheap. Well, its the past now.
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midget_man1387
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Post by midget_man1387 »

you got anything else you wanna pawn off? I'll throw in some extra cash cuz it doesn't look like that skyline will be coming your way dude. sorry :-?
viperdout
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Post by viperdout »

sg219 wrote:I just haven't really seen enough positive and idiot-proof Li-poly info to make them my first choice.
I really like the idea of having a charger that does it all, but I'm always afraid of choosing the wrong type of charge. My little 50 dollar Apache S2500 not only does the job with li-pos well, but since it detects what the voltage is in the beginning, you can't blow up your house by charging a 2s kokam 1500 pack at the 4s setting.
sg219
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Post by sg219 »

I have several lipo's now. I read up and got the right stuff now.

I'm going to be using lipos for it.
viperdout
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Post by viperdout »

sg219 wrote:I have several lipo's now. I read up and got the right stuff now.

I'm going to be using lipos for it.
Well, just one thing of caution: you'll be hooked. :grin:
sg219
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Post by sg219 »

I haven't updated this in awhile...

I think I found my servo. :-D

But I see this in the describtion.....:???:
This servo comes with a servo accessory package. This servo is not designed to be used in R/C car applications.
Well then what purpose does it serve? Will it still work.

I think I'm going to try it anyway.

BlueBird

Image

Never give up.

I wanted a chrome or silver servo, and now I've found it!!!

No freakin' blue or black. I can't de-anodize plastic. :lol:

BlueBird BMS-380 Max

Weight: 17.2 Grams / 0.64 oz
Size: 29.5 x 13 x 26mm / 1.16 x 0.51 x 1.03 in.
Torque At 4.8V: 57 oz.in.
Speed At 4.8V: 0.16 sec / 60°
Torque At 6.0V: 62 oz.in.
Speed At 6.0V: 0.14 sec / 60°
Ball Bearing: Single
Metal Gears: Yes


Hitec HS-55

Weight: 0.29 oz. / 7.8 grams
Weight w/ Servo Wire: n/a
Ball Bearings: No
Metal Gears: No
Torque (4.8V): 13 oz.in. / 1.1 kg.cm.
Transit Time (4.8V): 0.09 sec./60°
Torque (6.0V): 16 oz.in. / 1.3 kg.cm.
Transit Time (6.0V): 0.08 sec./60°


Hitec HS-85BB

Weight: 0.67 oz. / 19.2 grams
Weight w/ Servo Wire: 0.60 oz. / 17.2 grams
Ball Bearings: Yes, Top BB
Metal Gears: No
Torque (4.8V): 42 oz.in. / 3.0 kg.cm.
Transit Time (4.8V): 0.16 sec./60°
Torque (6.0V): 49 oz.in. / 3.5 kg.cm.
Transit Time (6.0V): 0.14 sec./60°


I'm not really worried about price. I want the best possible. I've gone this far with NO expense, why stop now. ;)

I think the BlueBird wins outright by specs.


Opinions?


I have 2 Mamba's now!!! One for the Mini-T and one for the MRS4!!!

I just got the one I bought from Madscott and I have one other too. But only one ESC.
payaso
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Post by payaso »

It probably doesn't have enough, or too much throw. That's the only reason I can think of.

Now if you get an ajustable Tx, you might be able to dial it in..


The servos they use in robot applications are like that too.




silla :D
payaso...... :)

"Imagination is everything. It's the preview to lifes coming attractions" -Albert Einstein
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