12-24-2009, 09:42 AM | #201 |
RCC Addict Join Date: Jan 2009 Location: ?????
Posts: 1,059
| x2 , that was what made me pull the trigger on this thing. .. . o well, as long as it works good it could still be worth it. .. .
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12-24-2009, 10:06 AM | #202 |
PapaGriz Yo Join Date: Apr 2004 Location: In the garage building the wife a crawler
Posts: 13,137
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I'm running 4ws on Peanut now with this ESC. I have a Hitec 5995 (333 oz/in) up front and a Hitec 645 (133 oz/in) in the rear. Both are running off the internal BEC. I have not experienced any steering issues while running 3S LiPo, a 21T HHH 540, 22/81 gearing, and Hot Bodies Rovers. The wheels are Axial 2.2 8 holes with a full wrap of weight on all four wheels. I have been extremely happy with the performance of this ESC so far. Last edited by Grizzly4x4; 12-24-2009 at 10:10 AM. |
12-24-2009, 11:16 AM | #203 | ||
owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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We are still working on the throttle curves, it is in the works. I have seen a few issues with really high torque servos, it is true that the internal BEC just doesn't match the power of the Castle BEC. I don't know if we can ever really get around using an external BEC on the very high performance setups. The next ESC I am designing will try to address this in one way or another. Most setups won't need an external BEC, but if you are really pushing the rig hard or competing it may be worth it to have one handy for testing. | ||
12-24-2009, 11:55 AM | #204 |
RCC Addict Join Date: Nov 2006 Location: Lowell, Arkansas
Posts: 1,307
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And just for the entertainment value...... A BRXL, HH 3s Lipo, and gray can HHH 35t motor powered my shafty rig to a win at the last weekend's NWARC comp at the "fake dams" site. No issues at all with the BEC and JR8711 servo. Had to wiggle the servo to get the front end to slide through one gate. |
12-24-2009, 02:14 PM | #205 | |
[HOONIGAN] Join Date: Nov 2005 Location: Grand Junction
Posts: 4,269
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As for the BEC, I think the internal one will be fine for the 1.9 scalers, but everything else is going to have to go back to the external. | |
12-24-2009, 02:31 PM | #206 | |
Got Worms? Join Date: Jun 2009 Location: Golden, CO
Posts: 6,116
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12-24-2009, 04:38 PM | #207 | ||
[HOONIGAN] Join Date: Nov 2005 Location: Grand Junction
Posts: 4,269
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12-24-2009, 06:33 PM | #208 |
Got Worms? Join Date: Jun 2009 Location: Golden, CO
Posts: 6,116
| I'm planning on running dual hh esc's, a 7955 on a ar600 (the DSM spektrum airplane receiver) I hope it doesn't burn up
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12-26-2009, 09:31 AM | #209 | |
I wanna be Dave Join Date: Jan 2009 Location: laying low
Posts: 2,508
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12-26-2009, 01:24 PM | #210 | |
[HOONIGAN] Join Date: Nov 2005 Location: Grand Junction
Posts: 4,269
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12-27-2009, 09:51 PM | #211 |
Got Worms? Join Date: Jun 2009 Location: Golden, CO
Posts: 6,116
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so a spectrum rx can handle dual hh speed controls also will i have double the amperage so my servo will not stall any more
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12-27-2009, 11:45 PM | #212 |
Rock Crawler Join Date: Jun 2007 Location: Arlington
Posts: 684
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I'm not putting the motor amp load on the ESC that a MOA rig would, I run a DNA SS chassis with two servo's and a single motor. My servo's are a Z9100T for steering, and a 225MG for dig shifting. The 225mg's are leftovers from upgrading my T-Rex 500's servos. I run 2S and 3S lipo's with a 35T handwound arm in a EPIC Cobalt II can. With the 2S/3S batteries, there is no noticeable servo stalling, even when dig shifting-full-throttle-full-steering lock. I decided to "stuff" one of my 5S T-Rex packs into it and noticed the steering was lacking when "on" throttle/dig/full lock steering. The 6S T-Rex pack(6s1p 30C 2650mah), made it even worse. It would not steer when using full throttle and dig. Trying to dig, while steering, blipping the throttle, it was fine. Even with the 6S pack. I only used the 5S and 6S packs to see what would happen. I don't own any 4S packs, so I can't comment on those. For "NORMAL" people who rarely go above 3S, you don't need a BEC. I'm not going to use a BEC with this ESC, I'll never want to see my motor arcing like it did with the 5S/6S packs. Awesome ESC. Just being able to use 4/5/6S Lipo's is a benefit, and tribute to how stout this ESC seems to be. You don't need to go any faster, you're crawling. |
12-28-2009, 12:29 AM | #213 | ||
[HOONIGAN] Join Date: Nov 2005 Location: Grand Junction
Posts: 4,269
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Like I was stating earlier, on all bec's, the higher the input voltage the lower the output amperage of the bec. In turn, this equals less steering power under high load of the servo. The heavier the rig and the heavier the wheels you are trying to turn the more you are going to notice the lack of power. Also, with the higher torque digital servos, such as your 7950's 7955's and 8711's, you are going notice the lack of power a lot more than cheaper analog servo's such as a 645 or 985. | ||
01-02-2010, 08:27 AM | #214 |
I wanna be Dave Join Date: Jun 2007 Location: Canada, eh.
Posts: 2,919
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Is there really only one left in stock John or do you have more available? Putting together a group order for the local guys and I was hoping to order some later this week.
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01-02-2010, 08:52 AM | #215 |
owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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Almost out of stock here, but a few more hundered are scheduled to come in pretty quick.
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01-02-2010, 04:00 PM | #216 |
On the lookout for Rocks Join Date: Mar 2006 Location: Monroe, Louisiana
Posts: 3,711
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Seeing that V1.05(Beta) is out. This must to be the update that you talked about a few weeks ago. It has the option for Drag Brake Type...Passive or Holmes Hold. *******EDIT******** Guess it still needs some work. I just put the Holmes Hold on my SCX10 with a 30T HH TMP HW and it shutters pretty bad. I also put in on my Berg with a pair a 35T Warriors and it did the same thing. The Passive Hold is great....little better drag brake. Here's a link to a vid.... http://s235.photobucket.com/albums/e...00102_3253.flv Last edited by constantmotion; 01-02-2010 at 04:24 PM. |
01-02-2010, 05:26 PM | #217 |
RCC Addict Join Date: Dec 2005 Location: Tucson
Posts: 1,190
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Yeah my Bully does the same. It got better when i turned the drag brake to about 30%
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01-02-2010, 06:39 PM | #218 | ||
owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down!
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What voltage and motors? The info I need is the drag %, motor wind and type, and voltage used during the issue. We have already gone through a few revisions on this, and I thought this one would be "weak" enough to stop the glitching. The higher the voltage, the worse it gets. | ||
01-02-2010, 06:40 PM | #219 |
owner, Holmes Hobbies LLC Join Date: Nov 2004 Location: Volt up! Gear down!
Posts: 20,290
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Also, try out the Quiet mode and tell me what you think at really low throttle inputs, VS normal.
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01-02-2010, 07:42 PM | #220 |
Keep it real Join Date: Jun 2006 Location: Yakima,WA
Posts: 6,532
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I tried the new update today, Titan 21t on 1700 35c 3S, 100% drag... shutters at neutral throttle. Went back to the older version and it's great. I'll try turning down the dragbrake and see |
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