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01-03-2020, 10:13 AM | #701 |
Moderator Join Date: Aug 2017 Location: Readsboro, VT
Posts: 2,053
| Re: ProModeler Servo: 420oz, billet case, o-ringed, $79
He's so adamant about clean power that it makes me wonder if his servos have problems with noisy power. I've never seen anybody so bent on running directly from battery power instead of through a high quality BEC. Most people would prefer to run off their main battery via BEC because there's less voltage sag on a larger battery, but John insists that his servos need a dedicated battery, or at least a direct feed from the main (2S) battery. It makes me wonder if his servos won't tolerate noisy power like, well, everybody elses do.
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01-03-2020, 11:19 AM | #702 |
I wanna be Dave Join Date: Jun 2016 Location: Deep in the Everglades
Posts: 5,817
| ProModeler Servo: 420oz, billet case, o-ringed, $79
John is a pilot, and thinks airplanes. I’ve about died with this threads responses...... But being a long time reader, not unexpected. Jato usually comes off as an ass, But usually has a good point. I know John will test any servo if you spend 4.00 to mail it in. I’ve always seen the High Voltage servos as needing High Voltage, which starts at 7.4v I’m not an electronics expert, but I do see a huge difference amp draw at higher voltages, and little torque change. I still run 2, one on the 2.2 Bully(light!) and the other on my VS4, and I turned it down to 7.4 as I wanted slower turning response , as the 4.65 tires are easy on the trails I will add I did stall out both a PM420 and a Holmes V2, on my 11# Wraith, which has a 2290 and works flawlessly at 8.4v Yes I always use a bec and a Holmes RX bypass. Hang up and Drive Last edited by mikemcE; 01-03-2020 at 11:22 AM. |
01-03-2020, 11:43 AM | #703 | |
I wanna be Dave Join Date: Jun 2017 Location: Humboldt county
Posts: 4,475
| ProModeler Servo: 420oz, billet case, o-ringed, $79 Quote:
Last year I did just that, I told him I think I got a dud as it was stalling too easily. Sent it back and they tested it and it passed all of their tests , great but it failed the test of working in a real world application. I think the most frustrating thing is that these have the potential to be really good servos but they're let down by some sort of bind relief or some sort of safety thats cutting the power to these servo's. Give us a crawler servo with no safeties please! Here's a short video that I took of the issue and never posted out of respect. This is the 470 run straight off a fully charged 2S battery (which gave me the same results as running off a "garbage" BEC signal) https://youtu.be/h2WkfUNLOCQ Last edited by HumboldtEF; 01-03-2020 at 11:51 AM. | |
01-03-2020, 11:48 AM | #704 |
Gold Star Baby! Join Date: Dec 2017 Location: Las Vegas
Posts: 2,554
| Re: ProModeler Servo: 420oz, billet case, o-ringed, $79
@humboldt wow I’m surprised that stalled it That’s a fine assumption but if the servo can’t function properly off 6V then it shouldn’t even be advertised as such, remove the 6v specs from the page entirely and Jato likely would have never tried it since it didn’t fit his application’s design of a 6v system. Last edited by Topher Builds; 01-03-2020 at 11:51 AM. |
01-03-2020, 12:02 PM | #705 | ||||
Moderator Join Date: Sep 2008 Location: PA
Posts: 13,922
| Re: ProModeler Servo: 420oz, billet case, o-ringed, $79 Quote:
Quote:
Quote:
If it only runs at 7.4V that's fine, but state it on the page and don't give specs for lesser voltage. He claims it gets 415 oz-in at 6.0V. That would be plenty for me if, indeed, it put out that much power. It doesn't. At 6.0V it's worse than a $25 servo from China. Quote:
Last edited by JatoTheRipper; 01-03-2020 at 12:07 PM. | ||||
01-03-2020, 12:08 PM | #706 | |
I wanna be Dave Join Date: Jun 2017 Location: Humboldt county
Posts: 4,475
| Re: ProModeler Servo: 420oz, billet case, o-ringed, $79 Quote:
To be fair those were giant tires but I just find it unacceptable that in some instances it doesn't even try to turn at all. EDIT: I gave my Brother one of the 470's at the same time and he was also let down by the stalling but didn't want to send it in to get tested. Last edited by HumboldtEF; 01-03-2020 at 12:11 PM. | |
01-03-2020, 12:13 PM | #707 | |
Moderator Join Date: Sep 2008 Location: PA
Posts: 13,922
| Re: ProModeler Servo: 420oz, billet case, o-ringed, $79 Quote:
Mine does similar stuff with 4.75" tires on a fairly light TRX-4. I'll have to try to remember to get video. | |
01-03-2020, 12:36 PM | #708 |
I wanna be Dave Join Date: Sep 2011 Location: Douglassville, PA
Posts: 4,218
| Re: ProModeler Servo: 420oz, billet case, o-ringed, $79 I wasn't driving the truck, but that looks to be exactly what Jato's servo was doing. |
01-03-2020, 01:02 PM | #709 |
I wanna be Dave Join Date: Jun 2016 Location: Deep in the Everglades
Posts: 5,817
| Re: ProModeler Servo: 420oz, billet case, o-ringed, $79
I guess I’m stupid then, I better get it out of my VS4...... and it’s three years old, run off a castle bec. I could of written down easily half of this thread without reading and would be spot on. I call shit shit, YOU don’t. You whine about most things. You missed the part about how this works. Waaaaaaaaaaaaaaa!!!!!! Hang up and Drive |
01-03-2020, 01:35 PM | #710 | |
Moderator Join Date: Sep 2008 Location: PA
Posts: 13,922
| Re: ProModeler Servo: 420oz, billet case, o-ringed, $79 Quote:
I make valid complaints like I did in this case. Also, I did better than reading this thread. I read the specs on the manufacturer's website. Apparently they mean absolutely nothing. | |
01-03-2020, 02:15 PM | #711 |
RCC Addict Join Date: Sep 2010 Location: Apollo Pa
Posts: 1,650
| Re: ProModeler Servo: 420oz, billet case, o-ringed, $79
So I was planning to run this servo in my VS4 Pro up until I read this thread, if it does work good and only some people are having problems I don't wanna be one of the people having a problem, main reason being is the customer service that Jato has spoken about, Jato comes off crude but I really don't think he means to, it's kinda like text messages, sometimes they come off as rude but they weren't meant to be, some people just put it out there with no intentions. These forums are dying with everything moving to Facebook do we really need to argue, I mean really? With that said most of my crawlers I mostly run the cheap DS3218 servos but I wanna run a good quality one in my VS4 Pro so since this servo is now out of the running what's a good alternative? |
01-03-2020, 03:00 PM | #712 | |
I wanna be Dave Join Date: Jun 2016 Location: Deep in the Everglades
Posts: 5,817
| Re: ProModeler Servo: 420oz, billet case, o-ringed, $79 Quote:
You missed the part about how this works. Waaaaaaaaaaaaaaa!!!!!!" I didn't miss any of your personal attacks on JB ( he's probably read most of your comments, or your dislike for this product and vendor. I've dealt with JB as a Adult, and found his service equal to the best, and again 3 years on a castle bec. on my 2.2 bully You rip a vendor on a normal basis......Not name calling but facts. You come off as a cheap dimwit, which I know your not. Internet Warrior?? | |
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