Brushless CRT Questions - Page 2 - RC-Monster Forums

Serum · 02.06.2007, 02:05 PM

if you want to go Neu, the Quark would be a good controller. both motors are top-notch. i personally don't think there is a large quality difference between either the neu/quark or the lehner/mm the Neu has got holes, which allows dirt to slip in. (Mike has got this cool 7.5 dollar fix for it though) the Lehner has got rather undeep holes for screwing it onto the mount.

Both setups are great IMO.

The quark isn't a real PITA, it just takes some time before you get used to it. the mm is one of the easiest programmable escs available.

Sower · 02.06.2007, 02:11 PM

Right. Yeah, I think I'll stick with the Lehner/MM then. The motor's more, but the esc is less, so it's fairly even. I really like the Lehner motor for long term too. I've owned a Neu motor before, and they are awesome, but this time I'll go Lehner.

I had a Quark 33 before too, and the programming was a PITA when compared to the sweet Castle Link. That thing is just awesome.

Oh, one other question . . . where do I get a good UBEC? And does anyone have photos of how to install one so I can see what I'm doing? :027:

Serum · 02.06.2007, 02:13 PM

Mike has got them, don't know if they are in stock though. check the link in BrianG's signature, it has got a nice layout of how the wiring needs to be done.

glassdoctor · 02.06.2007, 02:17 PM

I was thinking about the Quark vs. MM thing, caused by the MM/Neu issues:

1940 $285
125b $280
total $565 :eek:

MM $135
ubec $15
9XL. $90
total $240 :005:

You save enough money that you can also pick up a Neu 1515 whenever Castle has a fix for the cogging issue, which should be soon.

This makes it seem like a no-brainer when you look at the $$$

glassdoctor · 02.06.2007, 02:19 PM

Or you could buy a MM and a 9XL, 7XL, 12L, and a 380c 7s for a 1/10 car....

or two XLs, a MM esc, and a MM 7700 system, or.... hee hee

Sower · 02.06.2007, 02:19 PM

Quote:

Originally Posted by glassdoctor

I was thinking about the Quark vs. MM thing, caused by the MM/Neu issues:

1940 $285
125b $280
total $565 :eek:

MM $135
ubec $15
9XL. $90
total $240 :005:

You save enough money that you can also pick up a Neu 1515 whenever Castle has a fix for the cogging issue, which should be soon.

This makes it seem like a no-brainer when you look at the $$$

Right. I looked at that too and it seems to make sense for me. Although I would take your second scenario and plug in the Lehner 1950/7 instead of the 9XL. Still saves me over $60 vs the Quark/Neu setup.

glassdoctor · 02.06.2007, 02:20 PM

Quote:

Originally Posted by Sower

Right. I looked at that too and it seems to make sense for me. Although I would take your second scenario and plug in the Lehner 1950/7 instead of the 9XL. Still saves me over $60 vs the Quark/Neu setup.

True dat :)

Sower · 02.06.2007, 02:26 PM

Quote:

Originally Posted by glassdoctor

True dat :)

By the way, how is your CRT running these days?

phidailo · 02.06.2007, 02:28 PM

I have run a 7xl Feigao, 9xl Wanderer, and now neu. If lehner is anything like the neu the extra money is def. worth it.

glassdoctor · 02.06.2007, 02:33 PM

It's all good except for the occasional MM/Neu "two step" :005:

I haven't run it much... cold and snow is a PITA to run in... everyting gets wet, etc.

BUT I think I;m going ot try to take it out and sky it off a huge snow jump just for kicks... and if I do I will get some video!! :004:

Sower · 02.06.2007, 02:52 PM

Quote:

Originally Posted by glassdoctor

It's all good except for the occasional MM/Neu "two step" :005:

I haven't run it much... cold and snow is a PITA to run in... everyting gets wet, etc.

BUT I think I;m going ot try to take it out and sky it off a huge snow jump just for kicks... and if I do I will get some video!! :004:

Sweet - you'll have to get video for sure! Definitely not enough brushless CRT video online.

02.07.2007, 01:47 AM

Hey Sower,
As you know I am working on a CRT conversion as well. I though I had my mind set on the Enerland 5s5000 pack, but I think I'm on the verge of switching to a MaxAmp 5s8000 pack. I chose a lower Kv wind (Neu in this case, but i claim no knowledge of which motor is better), with 5s over 4s. I did it because I too have hot summers and a fetish for cool gear. I figure with higher voltage I can gear down and have less current for the same power demands, and less current means less heat to dissipate. My last project I rotated through a bundle of motors trying to find the ideal, but voltage always gave me the best window to work within. Given the cost of packs, I'm going to employ the ole "it's better to have the voltage and not need it, then to need it and not have it" perspective in order to not blow 250-300$.
Also from eagletree data I am skeptical of ALL Lipo ratings. Given such, I'm thinking about choosing the 8Ah pack from Maxamp cause it fits nicely in my conversion and it actually has a lower CofG. Unfortunately, this is all a guestimation until the order comes in. Had to special order the smooth can Neu for the heat sink I posted in another thread.

Just my 2 cents.........

glassdoctor · 02.07.2007, 02:32 AM

I went to check out the parking lot and snow bank... I was by myself and it was getting dark out, so bad for video... but I got a quick test run with a buggy. The "jump" is like 8' tall... but the snow is not as hard packed as I hoped it would be. But I got the buggy like 10' off hte top I think... so at least 15' up in the air.

So I think it's a go for some good video, maybe tomorrow :)

Sower · 02.07.2007, 10:45 AM

Quote:

Originally Posted by cadima

Hey Sower,
As you know I am working on a CRT conversion as well. I though I had my mind set on the Enerland 5s5000 pack, but I think I'm on the verge of switching to a MaxAmp 5s8000 pack. I chose a lower Kv wind (Neu in this case, but i claim no knowledge of which motor is better), with 5s over 4s. I did it because I too have hot summers and a fetish for cool gear. I figure with higher voltage I can gear down and have less current for the same power demands, and less current means less heat to dissipate. My last project I rotated through a bundle of motors trying to find the ideal, but voltage always gave me the best window to work within. Given the cost of packs, I'm going to employ the ole "it's better to have the voltage and not need it, then to need it and not have it" perspective in order to not blow 250-300$.
Also from eagletree data I am skeptical of ALL Lipo ratings. Given such, I'm thinking about choosing the 8Ah pack from Maxamp cause it fits nicely in my conversion and it actually has a lower CofG. Unfortunately, this is all a guestimation until the order comes in. Had to special order the smooth can Neu for the heat sink I posted in another thread.

Just my 2 cents.........

Yeah, I have been following your other thread. Looks great by the way. I think I'm with you logically - I'm going to go with the Lehner 1950/7 hi-amp. I would rather have too much motor than not enough.

I'll look into the Maxamps packs. I'm not down on them, I've just heard they don't perform as well as some others out there. I'm definitely cool with having more run time due to higher mah. I'll have to check the weight too to make sure the chassis stays balanced.

Sower · 02.07.2007, 10:47 AM

Quote:

Originally Posted by glassdoctor

I went to check out the parking lot and snow bank... I was by myself and it was getting dark out, so bad for video... but I got a quick test run with a buggy. The "jump" is like 8' tall... but the snow is not as hard packed as I hoped it would be. But I got the buggy like 10' off hte top I think... so at least 15' up in the air.

So I think it's a go for some good video, maybe tomorrow :)

Dude, that sounds awesome. You have to post video when you can.

. . . the sun will come out tomorrow . . . la la la . . . :027: