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-   -   My rides: GD (https://www.rc-monster.com/forum/showthread.php?t=5572)

Procharged5.0 02.08.2007 07:01 PM

Anyone heard when the when the update is due?

wallot 02.08.2007 07:02 PM

the top heatsink is needed as it holds the bottom ones tight to the quark. i might replace the heatsink just with 2 metal bars but it was so cheap i just got 4 heatsinks
i put the original gear cover on (after i have taken the pictures) so nothing can get there (actually added 2 new pictures of fully assembled maxx)

Batteries are temporary and they were ok with titans :) . I am waiting for battery bars so i can make 8cell packs from existing Sanyo packs i have been using and still deciding about better quality batteries to make new 8cell packs. Its winter anyway so plenty of time till I run maxx everyday, so I will spend a month or two with Sanyo 8packs for those few weekends

AAngel 02.09.2007 04:35 AM

Man, just what I was afraid of...there is no end to it. LOL

Nice stuff, do you actually have the time to enjoy all of it?

wallot 02.09.2007 04:44 AM

Thanks to mild winter i run my maxx almost every Saturday. Once weather gets better I will have it in my car and run it after work on BMX track on my way home.

I actually enjoy building maxx and stuff around. There are still couple things I want to change except new batteries:
FLM Shocktowers with 1/8 scale threaded shocks
Want Nomadio React radio with all the sensors
and maybe new suspension arms

And after I am done I will probably start building a new truck - either LST or Revo

wallot 02.10.2007 06:23 PM

Even with 14 sanyo cells and 3.3 diffs the car is insane. Was running 51/18 gearing and all that nitro guys said was "wow". I cant imagine it with higher quality cells (with 18 cells and 1/8 diffs) the top speed should be about the same). Unfortunately front bulkhead and arms did not like one bad landing :)
Well next time i'll be running with the FLM hybrids and RPM arms are on their way.
http://www.radeks.net/temp/broken.jpg

jnev 02.10.2007 06:35 PM

Thats what happens when you bash hard, but it is all part of the fun.

Serum 02.10.2007 06:36 PM

too bad man! these things suck.. you managed not to pull your pillowballs thru the knuckles?

glassdoctor 02.11.2007 02:29 AM

Wallot

Not trying ot bust on you... but I tried to make a thread to post pics etc of my stuff so it's not all over the forum. ;)

I think I need to work on a website and just link to that... does that work good for anyone? I have seen a few guys do that but I tcan't think of too many guys here that have websites or pages with their stuff.

glassdoctor 02.11.2007 02:31 AM

I did a little racing today... it was good and bad... and had some fun.

I have a short video clip to show... just have to decide where to post the info.

starscream 02.11.2007 05:50 AM

Quote:

Originally Posted by glassdoctor
new avatar ;) this is the car I wanted back in the day... I had the original Ultima and i thought the Optima was sweet but I never got one.

Ah yes, I remember the good ol days of the Optima. That was my first RC (I believe it was 1987). My buddy had the Assoc RC10 but I wanted something 4wd so I got the Optima. Too bad we didn't have brushless back then...

wallot 02.11.2007 08:05 AM

Quote:

Originally Posted by glassdoctor
Wallot

Not trying ot bust on you... but I tried to make a thread to post pics etc of my stuff so it's not all over the forum. ;)


:) from you first post "Maybe others can do the same" i thought its a thread for others to post pics so the forum is not full of tons of pics threads :)

coolhandcountry 02.11.2007 10:24 AM

I like that you are using the truck. Nice.

glassdoctor 02.11.2007 11:42 AM

No problem wallet... just having some fun ;0

steve671 02.18.2007 11:08 PM

Quote:

Originally Posted by glassdoctor
new pics of 8ight with 1512 (other pic of it had the 1515)... and my old XX4 with MM 7700 and maxamps lipos

Big brother little brother Losis ain't it cute?


Awesome!

I am currently doing a conversion for a 777. Can I ask where you got your pinion gear from? I am having a hard time finding the correct pitch.
Thanks,
Steve

glassdoctor 02.19.2007 01:41 AM

Thanks... you need mod1 pitch pinions.

www.rc-monster.com has some as does starluck-rc.com

also you will find some made by Century, the r/c helicopter company.

steve671 02.19.2007 03:46 AM

Quote:

Originally Posted by glassdoctor
Thanks... you need mod1 pitch pinions.

www.rc-monster.com has some as does starluck-rc.com

also you will find some made by Century, the r/c helicopter company.

Thanks.
I am using a Mamba 5700 motor which has a 1/8 inch diamiter shaft. It appears that all they have availible that works with the metal spur gear is 5mm bore. Do you know of an adapter or sleeve to make the 5mm bore pinons work with the 1/8 inch shaft?
Thanks.

Serum 02.19.2007 07:56 AM

Shoot Mike an email, i think he can make an adapter for you.

glassdoctor 02.19.2007 10:43 AM

Yeah.. I think he has had some 1/8" bore mod1 gears before...

EDIT: woah... you are using a MM5700 in a 777? That motor is way too hot (too high kv) for a 1/8 buggy and it's undersized too. It will run but it will get very hot.

You can try it but watch the temps and see what happens... I think you will be picking up a new motor very soon. And it will have a 5mm shaft... ;)

Serum 02.19.2007 10:54 AM

12,13,14 and 15t should be available in 1/8th bore any time soon. But that motor is a concern indeed!

steve671 02.19.2007 04:05 PM

Quote:

Originally Posted by glassdoctor

EDIT: woah... you are using a MM5700 in a 777? That motor is way too hot (too high kv) for a 1/8 buggy and it's undersized too. It will run but it will get very hot.

You can try it but watch the temps and see what happens... I think you will be picking up a new motor very soon. And it will have a 5mm shaft... ;)

It will be running on 11.1v li-po. If I gear it very low, do you think I will still have problems?

glassdoctor 02.19.2007 04:45 PM

Yes, I do... but it will be interesting to find out how it does. I don;t know if anyone has pushed these motors to the limit in something like this. I know a guy who ran a basic 4200 motor in an emaxx and it did 40mph+ but ran hot. The 5700 setup may be very fast if done right, but it will be limited to short runs, imo.

A back-of-napkin estimate says that if you gear it 9/46 it will hit 50mph theoretical. I don't know if the little 5700 can do that... but it will sure try. That's why it will run hot... it's being overloaded.

The only way I see it doing ok and not overheating too quick, is if you gear it even lower... so it tops out around 30. That will take some custom work... large spur, truck diffs, etc. Even then the high revs will make it run pretty hot, but it should work.

squeeforever 02.19.2007 06:15 PM

Personally, I don't think it will do good. I would probably bet money it will fry the controller. I would invest in a good XL motor and run 4S LiPo. 4S should kinda be a minimum to run in a buggy, MT, etc.

steve671 02.20.2007 01:20 AM

Quote:

Originally Posted by glassdoctor

A back-of-napkin estimate says that if you gear it 9/46 it will hit 50mph theoretical. I don't know if the little 5700 can do that... but it will sure try. That's why it will run hot... it's being overloaded.

I know the Mamba ESC and 5700 are rated to be able to handle the 3s lipo. Do you say this because of the extra weight of the 1/8 car?

If I change to the Mamba 4600 with 2s lipo will this be any better?

MetalMan 02.20.2007 01:48 AM

1/8 buggies/truggies weigh about twice as much as the 1/10 cars the Mamba Max system was made for. None of the Mamba Max motors will run properly in a 1/8 buggy/truck/truggy. You could use the Mamba Max ESC, though, just not the motors.

BP-Revo 02.20.2007 03:03 AM

Quote:

Originally Posted by steve671
I know the Mamba ESC and 5700 are rated to be able to handle the 3s lipo. Do you say this because of the extra weight of the 1/8 car?

If I change to the Mamba 4600 with 2s lipo will this be any better?

For comparisons sake, its like running a 500cc ATV motor in a Hummer...its just not big enough.

glassdoctor 02.20.2007 03:07 AM

1/8 buggy = 8lbs and heavy 4wd drivetrain, big tires
1/10 buggy = 3.3lbs and very light 2wd drivetrain and tires

Yes the difference is HUGE

Eveyone is trying to tell you it's not a good idea, but you are free to do it. A few years ago guys were running setups kinda like that. The first "emaxx" bl system was an 8s motor... somwhat like a MM4600 I would guess.

But nobody runs a setup like that anymore... for good reason.

squeeforever 02.20.2007 03:32 AM

Quote:

Originally Posted by steve671
If I change to the Mamba 4600 with 2s lipo will this be any better?


Quote:

4S should kinda be a minimum to run in a buggy, MT, etc.
^You might want to take that advise.^ I didn't say it for no reason...

steve671 02.20.2007 03:34 AM

Quote:

Originally Posted by glassdoctor
1/8 buggy = 8lbs and heavy 4wd drivetrain, big tires
1/10 buggy = 3.3lbs and very light 2wd drivetrain and tires

Yes the difference is HUGE

Eveyone is trying to tell you it's not a good idea, but you are free to do it. A few years ago guys were running setups kinda like that. The first "emaxx" bl system was an 8s motor... somwhat like a MM4600 I would guess.

But nobody runs a setup like that anymore... for good reason.

Makes sense. Thanks for your help.

Can you recommend a motor? I would like to use the Mamba ESC; I really like the tunability through the computer. I am not looking for extreme speeds; 30-40 max. I would like to use 11.1v or 7.4v lipo and get long run times.
Thanks again for your help.

steve671 02.20.2007 03:37 AM

Quote:

Originally Posted by squeeforever
Personally, I don't think it will do good. I would probably bet money it will fry the controller. I would invest in a good XL motor and run 4S LiPo. 4S should kinda be a minimum to run in a buggy, MT, etc.

I am not clear on why this is so? Any chance you could let me in on this?

squeeforever 02.20.2007 03:50 AM

Why what is? Why I would use a XL motor, or why 4S should kinda be a minimum?

steve671 02.20.2007 04:03 AM

Quote:

Originally Posted by squeeforever
4S should kinda be a minimum?

my bad.

I am also going to use the stock disk brakes, not electronic braking. My understanding is that this will help with limiting the current draw.

Patrick 02.20.2007 04:03 AM

Watts = Amps x Volts
So say you need 750 watts to do 40mph (just a guess, some one else might say different).
At 7.4 volts you'll need 101 amps (740 / 7.4 = 101)
That's alot, I think the limmit of the MM is 100amps, so you'll burn it out pretty quick. Plus axcellerating will take more amps (if your batteries can handle it).
At 11.1 volt you'll need 68 amps, plus more for acellerating. Still a lot for the hole system.
At 14.8 volt you'll need 50 amps. Still a lot, but no where near as much as 100 amps.
These numbers aren't 100% accurate, but you get the idea.

With high current low voltage everything will get hotter. And your batteries will drop voltage more with the high amps, making the car feel less powerful on take off.

glassdoctor 02.20.2007 11:52 AM

I think you need to start a new thread... and look up some other 1/8 buggy MM setups. This thread is getting way OT and all over the place.

Advice: For $80-90 you can get a Feigao L or XL with or without finned can. An 8XL or 9XL on 4s will run great. And you don't need the mechanical brakes.. it's only adding weight and complexity.

Think about what's been said... and start a new thread with the questions you have now.

steve671 02.20.2007 01:21 PM

Thanks.
I appreciate your help.


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