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-   -   Brushless hpi baja rc-monster (https://www.rc-monster.com/forum/showthread.php?t=20189)

lincpimp 06.16.2009 10:00 AM

I plan to use a clamp style mount, like the flux moun, (might actually be flux mounts as I have spares) as they hold the motor more solidly and will fit my design and manufacturing abilities better than a side plate. I do agree with Mike that the screw issue is not that bad, I would still like a rear motor support, just in case.

My design will most likely not be adjustable, as I only have and only plan to run a 12t pinion. My 1527 has an 8mm shaft and so far pinion choice is not that great. Looking forward to Mike offering more pinion choices. If I can make some time this weekend I will try to get some work done on the baja. Just not enough hours in the day!

scarletboa 06.16.2009 04:16 PM

while we are talking about pinions,

mike, would you be able to make an adapter so people can use your 5mm pinions with a KB 45 motor? i have a KB motor that has already been ground down to 5mm, but i bought it used and don't want to risk ruining my new KB motor.

so a 6mm~5mm adapter?

brushlessboy16 06.16.2009 04:23 PM

Quote:

Originally Posted by scarletboa (Post 296240)
while we are talking about pinions,

mike, would you be able to make an adapter so people can use your 5mm pinions with a KB 45 motor? i have a KB motor that has already been ground down to 5mm, but i bought it used and don't want to risk ruining my new KB motor.

so a 6mm~5mm adapter?

you might want to think that one over again... you cant take away diameter of a shaft with an adapter..

nitrostarter 06.16.2009 04:29 PM

The only way that is possible is to trim the ahaft down to 5mm...

scarletboa 06.16.2009 06:34 PM

Quote:

Originally Posted by brushlessboy16 (Post 296244)
you might want to think that one over again... you cant take away diameter of a shaft with an adapter..


wow, i hadn't really thought that out very well.....


mike, could you start making 6mm bore mod1 pinions? i have one of your 18t 5mm mod1 pinions and it has no signs of wear. (unlike my RRP pinion)

Unsullied_Spy 06.16.2009 07:22 PM

Quote:

Originally Posted by RC-Monster Mike (Post 296144)
I think the "too much weight hanging off the screws" is more paranoia than legit concern to be honest. The screws are held in tension and friction is really what holds the motor in place(from the screws pulling it against the mount). The actual amount of force required to pull an m3 screw out of even aluminum is measured in thousands of pounds and the screws themselves are not the weak link(it is the threads in the aluminum that will fail first). If you have sheared a screw in a similar application, it was likely a low grade screw that was loose to begin with. :)

Paranoia is pretty much it, I've never broken off a screw in a motor but I'm not looking forward to it happening. IIRC the 1527 uses M4 screws which would be even tougher. I still have that bit of worry in my head about that long motor only being secured by 2 little screws in the front :neutral:

Ryu James 06.29.2009 01:51 AM

whats the latest on this project? pinions available yet? conversion kit? videos? i know i keep asking but hey, i am excited. anyway, my 1/5 kit gets in tomorrow and i need to order some 8mm pinions so i am hoping you have some, one, anything. keep us posted.

finfin 08.07.2009 09:23 AM

what is it going on for this project?
Please.... continue.........

chumanji 08.20.2009 07:34 PM

Any updates to the conversion?

76Bentley 09.07.2009 02:35 AM

Sorry to keep bring this up, but I had really hoped to make a 5b for my next project. Mike can you let us know where this stands? With Patrick's thread on the ICE with new software it sounds like we have a ESC now. Any info would be appreciated.

Fast5sRevo88 09.07.2009 02:58 PM

I talked with Mike about this last week, he said the conversion was mostly done accept for a few tweaks on it to make it an easy drop in. The original prototype needed the buggy to be slightly modified in order for it to work, the tweaks to the conversion will fix that. He said the price will be in the $125-$150 range. If you emailed him, you might could get one before it hits the store.

nl12 09.12.2009 09:26 AM

I'm looking forward to getting one of these conversions.

nl12 09.14.2009 03:40 PM

Ready to order I got a sweet baja in progress for this thing

kazuaki 09.14.2009 04:25 PM

What will be the motor of choice for a setup like this? I have a decked out ESP powered baja that I would consider converting.

nl12 09.14.2009 05:32 PM

Neu 22 series for me

thomatrix 11.01.2009 05:54 PM

Does anyone know if they use the 5mm or 8mm shaft on these conversions?

Ryu James 11.01.2009 08:38 PM

Quote:

Originally Posted by thomatrix (Post 330594)
Does anyone know if they use the 5mm or 8mm shaft on these conversions?

the provided pinion gear will be 8mm bore for a 8mm shaft but i think you can get a bore reducer on the RCM store that can reduce the pinion bore from 8mm to 5mm. so you could go with either shaft size although i would recommend using the 8mm just from experience with my own 1/5 conversion and the amount of torque on the Neu 22xx motors. in my opinion, the slightest mistake in gear mesh or chassis flex would easily snap a 5mm shaft on these large, heavy conversions.

RC-Monster Mike 11.01.2009 09:14 PM

Quote:

Originally Posted by Ryu James (Post 330637)
the provided pinion gear will be 8mm bore for a 8mm shaft but i think you can get a bore reducer on the RCM store that can reduce the pinion bore from 8mm to 5mm. so you could go with either shaft size although i would recommend using the 8mm just from experience with my own 1/5 conversion and the amount of torque on the Neu 22xx motors. in my opinion, the slightest mistake in gear mesh or chassis flex would easily snap a 5mm shaft on these large, heavy conversions.

Exactly. :)

thomatrix 11.02.2009 05:13 PM

Thanks a lot for clearing that out!

Do you guys recommend a finned can for better cooling or just the regular smooth one?

I've also had a look at this ESC:
http://www.hobbyking.com/hobbyking/s...dProduct=10332

Would you think this was a good/bad choice?

RC-Monster Mike 11.02.2009 06:51 PM

The smooth motors allow more gearing possibilities. The conversion kit will likely have a mounting option for a fan over the motor for cooling.
I too am curious how that ESC would work - it looks good on paper. :)

thomatrix 11.03.2009 06:03 AM

Thanks. Just ordered two motors:

- 1x Neu 2215 750kv, smooth can, 8mm shaft
- 1x Neu 2215 480kv, smooth can, 8mm shaft

This will allow me to test both 8S, 10S and 12S setups.

I will try the Turnigy ESC and see how it performs using that. I pretty much have the batteries I need for 8S and 12S so I'll start with that.

To get a little scientific about it I have also ordered the 150A Eagle Tree eLogger with additional temp and rpm sensors.

sujuara 11.06.2009 08:07 PM

Turnigy used to buy in Hobbywing ESC and sticked their name on it... So i would recommend u to buy the Hobbywing Platinum 120A HV ESC... this will give u truck load of power

thomatrix 11.07.2009 04:51 PM

Other opinions on the Hobbywing vs. Turnigy? Direct links:

http://www.hobbywing.com/ENGLISH/Art...?ArticleID=440

http://www.hobbyking.com/hobbyking/s...dProduct=10332

speedy 11.07.2009 05:16 PM

can the monster 200 esc be used with a pistolgrip tx ?

suicideneil 11.07.2009 06:57 PM

Unknown...

thomatrix 11.07.2009 07:18 PM

Quote:

Originally Posted by speedy (Post 331643)
can the monster 200 esc be used with a pistolgrip tx ?

I'm quite curious about that too...

sujuara 11.07.2009 08:39 PM

here we go

Hobbywing Platinum 120A 12S ESC

thomatrix 11.13.2009 09:31 AM

Hi Mike,
it's been about 6 months since you wrote a product update. How far are you with the kit? Any updates will be appreciated.

virusss 11.13.2009 03:06 PM

Yes Mike, please put out the kit ob Brushless Baja!!!
:)

brushlessboy16 11.21.2009 04:43 PM

How would dual kb45 xl's do in a 5b..

700kv and 10s sounds decent.

Unsullied_Spy 11.21.2009 05:51 PM

Quote:

Originally Posted by brushlessboy16 (Post 334499)
How would dual kb45 xl's do in a 5b..

700kv and 10s sounds decent.

It would probably work, but if you want a whole lot of speed they're going to run hot. What kind of peak power output do those have? I'm guessing 1,500 watts, so two of them should be OK if you are careful with your gearing.

suicideneil 11.21.2009 08:36 PM

My question is how would you make them & all the lipos required fit? They aint small motors...

brushlessboy16 11.21.2009 11:07 PM

Quote:

Originally Posted by suicideneil (Post 334523)
My question is how would you make them & all the lipos required fit? They aint small motors...

very creative motor plate that i have all done up in cad.

10s 5000mah 30c?
or do I need more?

suicideneil 11.22.2009 11:18 AM

In theory that should be fine (5s for each motor/esc), but the KB motors are amp hogs from what I gather, so an eagletree would definately be advisable to keep an eye on voltage drop under load..

RC-Monster Mike 11.22.2009 11:37 AM

Sorry it has been so long - I have my baja torn apart as I rework the conversion(I am never satisfied it seems). The updated kit will be pretty sexy and hopefully worth the wait - I should have the new kit installed and running in about a week. Hopefully the kits will be ready within a couple weeks.

lincpimp 11.22.2009 02:11 PM

Quote:

Originally Posted by brushlessboy16 (Post 334542)
very creative motor plate that i have all done up in cad.

10s 5000mah 30c?
or do I need more?

7hp potential in those lipos. Should be ok. What escs do you plan to use? I still have the 12s capable escs that I was going to use with the baja, not sure what to do with them! Maybe run a dual motor 1521 setup in a stretched savage?

brushlessboy16 11.22.2009 02:13 PM

Turnigy HV's

Shoud turn out well on 10s.

I just learned that you can buy 5b rollers(clones) on ebay for 399.

lincpimp 11.22.2009 02:42 PM

Quote:

Originally Posted by brushlessboy16 (Post 334630)
Turnigy HV's

Shoud turn out well on 10s.

I just learned that you can buy 5b rollers(clones) on ebay for 399.

Pretty sure those are the same escs I have. Something like 120 each??? Anyways, sounds like a fun project, but I have found used hpi bajas rtr for 400 bucks...

brushlessboy16 11.23.2009 12:13 AM

Quote:

Originally Posted by lincpimp (Post 334637)
Pretty sure those are the same escs I have. Something like 120 each??? Anyways, sounds like a fun project, but I have found used hpi bajas rtr for 400 bucks...

Let me know if you find any more.

i want to run 10s to each esc.

brushlessboy16 11.23.2009 06:27 PM

What other motor options are ther for motors?
Neu 22xx is too expensive

kb45 are a bit of a pain to utilize...


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