G2r Revo Project
 

Hello longtime no see, hehe.

Ok, this is the deal, I bought used g2r Revo roller a sometime ago. Now im a bit lost what to put into it? I have thought castles mamba monster + neu set, but those will be available sometime in August, right? Purpose is to get it running end of this month..
And what comes to batterys, I have considered these https://www.tanicpacks.com/product_i...a69ab2aae5007b. Im done with dealing lipos, two of my 3s2p packs have swelled cause of winter driving.. and I like the 15min charging times for a123..

What do you guys think? Some nice motor/esc combo and about those batterys are them better than lipos? Enough questions for now.

Heres some pictures:

http://picasaweb.google.com/olbero/G2R

Hay Hardstyle,
How is the wearther in Finland (?) it's 82% at the beach here in so-Cal (for what it worth).

anyhow.. Nice pictures.. should be a nice project for sure..
Motor and esc combo would be a MGM and Neu here is link to both;
http://www.rc-monster.com/categories.php?cat=9
http://www.impaktrc.com/index.php?cP...0e44341af7ef3f

Cant help you with the battery (sorry) i'm a lipo man myself.

thanks for your time and have a great one

shaun.

Very nice, those are some low profile tyres. Bling Bling. No one knews when the combos will be availiable but rumor going around August. Keep us updated

Hehe, the weather is pretty lame now, but we have had some pretty warm days too :mdr:

Maybe I should wait for the mmm set and for now order just some basic XL motor, how's that sounds? I already own bk12020 esc so I could use it temporary.
Any suggestion for the a123 battery packs, maybe 09xl?
Btw, does Mike sell a123 packs havent seen any in the store?

I will keep you guys updated, but now I need really bad some advices what to order hehe.

Anyone :neutral: Serum, I know you have some insight for the setup :mdr:
And I probably have to ask from Mike if he could get me couple a123 packs. Whats his email is?

I would check neil's thread - 2x6s1p A123 packs in a triangle formation. That is also what I intend to build for use with a 9XL and a MMM.

Castle are recommending Tanic at the moment for A123 packs - maxamps can also build them.

I've been using 2 5S A123 battery on my EMAXX with 8XL + CC MM. Pretty good runtime and acceleration not to mention wheelie on demand. I have this 2 6S A123 on the way and will try it on a medusa 2000kv + MM... (while waiting for MMM, not sure if it will arm but I know someone did it and he has no prob at all)

I think 9XL would be good enough with MM....but not ideal for 6S2P (might burn esc)

Nice pics...keep them coming

Thanks guys!

Now I have something to start with, so BK12020 (which I already own), 9XL & Two 6s A123 packs. Should be enough power. BK12020 is good to 6s lipos and 120A continous, so there shouldn't be any problem?

Ok, so now the motor setup should be okay.
Now I would need some good charger and (balancer) any suggestion for that? Criterion to charge both A123 packs at the same time..
Btw, do I need to balance A123 packs :neutral:?

A hyperion Duo - does 2 packs at onceand has a built in balancer.

A123 do need balancing but seemingly less often...

That would be nice, but Mike doesn't carry them.. Gotta ask if he could order it for me at the same time with the battery packs. Does that charger have any specific name?
I have 14amp nosrams psu, can it handle both packs with maximum charge rate? It seems that I have to learn more about these A123 batterys, kinda new thing to me..

http://b-p-p.com/proddetail.php?prod=0610iduo

http://media.hyperion.hk/dn/eos/EOS0610iDUO-MAN-EN.pdf

Thanks!

Heres the list:

• 9XL $70.00
• A123 Packs $260.00
• Charger $269.95
• Pinions $12.00
• Heat Sink $24.99

Total:$639.94

Haven't contacted to Mike yet, still missing something :whistle:.

What sizes of pinions should I get?

And what about spare parts, I have some extra diffs, wheels, tires etc. small things
http://picasaweb.google.com/olbero/G...17650899205682
http://picasaweb.google.com/olbero/G...17657204826050
http://picasaweb.google.com/olbero/G...17656175557682
What are the most common things that easily get broken?

Diff's - You may need to get aluminum inner and outer cases...

9XL on 6s around 22 IIRC - Try Briang's speed calc

You mean this http://www.rc-monster.com/proddetail.php?prod=int3149s? So two of these, anything else? Arms, gears to the gearbox?

22 IIRC, sorry but what does it mean :mdr:?

22T pinion with 66T spur should be fine (iirc = if i recall correctly)

You should also look at the inner diff cups - Looks like mike doesn't sell them.

Arms are fine - you will need this http://www.rc-monster.com/proddetail...rod=RCM03idler

Thank you very much Arct1k, you have been so helpful, RESPECT & to the others too :mdr:

So final list should look like this is there missing something?

• 9XL $70.00
• A123 Packs $260.00
• Charger $269.95
• 3xPinions $12.00
• Heat Sink $24.99
• 2xExternal Diff Case $29.99
• Hardened steel idler gear $15.00
• 2xRPM Front Left + Right A-arms $13.50
• 2xRPM Rear Left + Right A-arms $13.50
• 2xOfna spurgears for Strobe slipper $7.50

Total:$ 804.92

Just got Mikes confirmation, that he is ready.. he just need spessific list about these parts :party:

I have to think more about those inner diff cups, if they are too expensive.. But have to ask Mike if he could get em with reasonable price..

And one thing about my strobe slipper, there are now 51T spur so the pinion should be smaller.. In the list I put 3 pinions, so I could choose variety sizes. What sizes should I get?

The RDlogistics internal diff cases are cheap - $30 for 2 or Mike has the FLM ones for $30 each if you want to go that route.

I would skip the RPM arms - Just go for the traxxas extended rears - I find the RPM ones too flexible.

If you have the strobe slipper at the moment I assume you are mod 1 - Use Briang's script to check pinion sizes once you decide on a motor.

On the Hardened Idler - If you are single speed you will only need one - I recommend the single speed mod.

It might be worth looking at the medusa 60mm - People are finding the run cooler and with the heatsink and the cost of this beast you may just spend the extra $20.

Also you don't need to go as expensive on the charger - I think you might want to re-look at the 1210i which mike stocks - You can charge both packs together with a Y lead and every once in a while charge separatly to balance them.

This saves you $100 which could allow you to buy a Neu motor - A 1515 2.5DF would be perfect and a much better investment in my opinion.

Rgds

Ok. So the external diff case is useable with the FLM internal case?
Ok. Only rears?
Yes, Mod1. I will check that script
Yes, the gearbox is singlespeed, I think. But I think that last owner has replaced the Hardened Idler.. Have to check that tomorrow
Is that motor 4 poler? BK12020 won't run it nicely?
Does the charging times suffer with this kind of modding? And this 1210i has integrated balancer?
This motor/esc setup is just temporary, I will look the mmm + neu set later... when they publish it...

Sorry for the huge quote :na:

Check with Mike on the diff cases but I believe yes.

Go with the:
- traxxas extended rear revo arms http://www.rc-monster.com/proddetail.php?prod=TRX5333R
- RP front arms (only if using stock plastic drive shafts)

Best confirm about the BK and Medusa compatability in brushless section I'm not sure

610i It has a lower power rating 250w but at 25V this is still 10a which is enough for a 2p pack - It has a built in balancer for when you do an occasional balance charge
http://b-p-p.com/proddetail.php?prod=fb_0610i
The 1210 requires an LBA10 external balancer.

PS at the BK site it references that it should work on a 4 pole up to 50k rpm - I'm sre what this means practically though

I think I go with the basic 09XL motor for now. There shouldn't be any problems then and they are rather cheap. Don't get me wrong the motor/esc will change as soon as castle release the mmm combo..

I used Briang's parameter solver for the pinion and it pointed some around 20t pinion. Not quite sure If I typed all correctly though..

Differential Ratio: 2.8461538461538463
Transmission Ratio: 1.7222222222222223
Additional Ratio: 1
Spur Tooth Count: 51
Pinion Tooth Count: 20.7831
Battery Voltage: 19.8
Motor KV: 1853
Tire Diameter (inches): 5.51
Top Speed (MPH): 50

So you think the 610i with Y-lead would be enough for the A123 packs?

Ok, so let's look that list again :smile:

• Charger - 610i
• Mod 1 Pinions 18,20 & 22T
• Traxxas extended rear & front revo arms (Steel drive shafts)
• 09XL
• Rc-Monster Heat Sink, Black
• 2x Ofna spurs For Strobe Slipper
• 2x 6S A123 packs 19.8V 4600 mah
• External Diff case + (FLM) Inner Case

I opened the gearbox
It seems that the Hardened Idler is there? Should there be grease inside?

Looks great - That should work great - Yes there should be a V light coating of grease Honda Moly 60 works well.

Agree on gearing with tire balooning I think you might want to consider 16 18 20

OK, Thanks. Tomorrow I will email Mike the list. And ask at the same time about those outer/inner diffs.. Probably have to ask Mike to do the Y-Lead to the charger too.

It is just this - you will need one anyway to connect the two packs into your esc...

Bk12020 has two sets of wires (black/red) so it will work in parallel when I just plug the packs to them. But anyway the charger needs the Y-lead.

Is there anywhere some more info about A123 batterys? just want to know the basic things..

I shot an email to Mike two days ago about the stuffs. But haven't got an answer. Should I spam another?
Just that im leaving end of this month to lapland and want to take the car with me. So there is pretty short deadline. Should I be worried, is Mike fast on shipping things to europe?

He is very fast with shipping, probably just busy with orders and such as per usual. Give it another day or two, then email him again as a reminder. For basic A123 info, try my FAQ on my website: http://robotwars.00server.com/emaxxfaq.html and scroll down to the battery section.

Thanks, Bookmarked the site.

Ok the order is in progress, I think.. but still have to work out the payment with Mike..

Now I started to wonder about the motor, will 9xl be too hot with 19.8 volts? What you guys think?

Little update. Mike lost all my emails so the order did delayed a little bit :intello:. It happens, but I think he can get the stuff coming in a few days..
I did some preliminary work and turned around the gear box, installed front/rear bumbers, put the servo in place and loctited all the metal to metal screws. Also I ordered new Spektrum Dx3r radios :yipi: should be here in couple days.. Cant wait :party:

Can anybody say about the motor, should I consider 10xl beside 9xl?

Here some crappy pics:

I'm running my 9XL on 6s 2p A123 at the moment and it seems OK -It is getting hot but I manageble with HS and fans.

I would start with 9XL or look at 10XL if you havn't ordered the motor yet - I woudn't buy both as you would be better off buying a better motor from the outset.

I concur. The 10xl on 4s or 5s would run cooler and still give great power and speed, geared correctly. Starting to wish I had ordered the 10xl clone now, but never mind.

Yep I changed it to 10xl, Mike prefer it too..

Got something cool today :party:

Hmm, looks like some kind of handheld control device.

:lol: Mom thought that it was some kind of camera :intello:

:rofl:

Sorry for not posting here a while.. Haven't been around, was in vacation in Lapland. But the order is now on its way here, should get em for next week (fingers crossed). Mike is quite fast on shipping..

Anyways have a question about the bk 12020 esc's wires (motor and battery wires). How long should them be? And how much I can cut em or should I at all?

The general feeling is, the shorter the wires, the better basically- less voltage drop and/or resistance. Shorter wires also make for a cleaner install too.

Ok, thanks. I thought that too..

I have been thinking about the esc placement and I notice that it will fit with little modification under the rear axle.
Got some pics about it. Just if it start to burn, its nearly impossible to get it out of there :tongue:. What do you guys think?

http://lh3.ggpht.com/olbero/SNkMPadE...0/IMG_0394.jpg

http://lh5.ggpht.com/olbero/SNkMPwpQ...0/IMG_0395.jpg

http://lh4.ggpht.com/olbero/SNkMP8vz...0/IMG_0396.jpg

http://lh4.ggpht.com/olbero/SNkMQCuu...0/IMG_0398.jpg

Nah - To close to moving parts and dirt IMO