I've bought a number of things from them. Shipping time seems to be pretty consistent with other Chinese retailers... about 3 weeks for me on the East Coast. 1/2 of that time is the time it takes for it to cross the US by donkey.
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What the newest cheap servo hotness?
- Thread starter Duuuuuuuude
- Start date
I've bought a number of things from them. Shipping time seems to be pretty consistent with other Chinese retailers... about 3 weeks for me on the East Coast. 1/2 of that time is the time it takes for it to cross the US by donkey.
Hydrocarbon92
Rock Crawler
I just tried that coupon code and it's only $1 cheaper since it doesn't overlap the sale. Part of me really wants to buy one, but I'm going to get 2 of the 32kg JX HV5932 and use them in my Clod for $3 more. The gearbest price is $22 with the discount, or $26 from Banggood if you want it shipped asap from a USA warehouse.
The problem is it's slow and more expensive vs a similarly rated JX servo and a little less than a much faster Promodeler. That's about 35kg at 6v but 0.16sec is sloooooow. Now that I've run $25 0.10sec servos, I never want to go back.
You could buy almost 2 of those for the price of that Savox, or 3 for the price of a Promodeler & Castle UBEC [with USB Link].
The problem is it's slow and more expensive vs a similarly rated JX servo and a little less than a much faster Promodeler. That's about 35kg at 6v but 0.16sec is sloooooow. Now that I've run $25 0.10sec servos, I never want to go back.
You could buy almost 2 of those for the price of that Savox, or 3 for the price of a Promodeler & Castle UBEC [with USB Link].
Inspector86
RCC Addict
Honestly, why does servo speed make any difference in a low speed scale crawler? In fact when I replaced my servo horn with a HR 25T aluminum one it came with two drag link holes. I use the inboard hole to slow down my steering as much as possible. Now if you are a basher like Kevin Talbot and beat the snot out of your truck while running 6s batteries then I could see a need for a fast servo but for slow scale crawling what's the big deal?
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If all you're doing is going .000001mph on the rocks, the servo speed probably doesn't matter, but I drive my vehicles in a way that includes bursts of higher wheel speed for steep inclines or low traction situations, and in those cases I need to react quickly to what the truck is doing. Having a servo that you can time with a sun dial doesn't help with control under those conditions.
Hydrocarbon92
Rock Crawler
I used to think speed didn't matter and for 1mph it doesn't matter too much. Still if I have the choice between 32kg and 0.10s or 35kg and 0.16s, I'll take the faster servo. When you hit a rough trail spot and ppl stack up behind you, 50-100 milliseconds per turn starts to add up.
^^^ the 12v+ Ultra High Voltage servos would be handy for one of my rigs that is being built with a first-generation Holmes SHV500... I may not have the bent-pin issue occur for a while (or at all!), but the early SHV500's did occasionally have it happen. It would be nice to have a half-price backup servo for use if I needed it while I waited for the upgraded replacements that are now available from Holmes.
My other Bomber will be built using a CC BEC WP 2.0 set to 8.4v and my ProModeler 470oz-in. No worries there...
My other Bomber will be built using a CC BEC WP 2.0 set to 8.4v and my ProModeler 470oz-in. No worries there...
intheworks
Quarry Creeper
The jx6221 with the ubec set at 7v is working great!!! very quiet and powerful setup for $27 total. servo was $15 shipped and the ubec was $12 shipped. my buddy got the same ubec but a 20kg waterproof servo and his performs the same as my 6221 IMO. "thumbsup"
StomperCrawler
RCC Addict
No modifications to the servo?
intheworks
Quarry Creeper
nothing other than wiring in the UBEC.
I went ahead and ordered the brushless version, not the coreless version. From Gearbest... Used a coupon and it's gonna be roughly $50... Gonna be my backup for the HH shv500. Read up on it, brushless will outlast coreless, per aviation servo forums. Will be a while before it shows up...
Hydrocarbon92
Rock Crawler
What 7v UBEC are you using? The cheapest I've found for a 5A+ read-made UBEC is $16.
intheworks
Quarry Creeper
i went with the FVT 6a adjustable UBEC which appear to be sold out now.
https://www.ebay.com/itm/FVT-6A-Adj...e-Helicopter-5V-6V-7V-BEC-2S-6S-/172328935150
i have a question. they say adjustable BEC. with only 2 options for the jumper and 3 different voltage settings. i havnt tested this but if the jumper is on 5 and 6 then what voltage output is that? vs if the jumper is on 6 and 7?
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Hydrocarbon92
Rock Crawler
Usually with the jump OFF is lowest voltage. If the 3 pins are labeled 5/6/7, then 5/6 would probably be 6v and 6/7 would be 7v. You'd have to measure with a DMM as that link has no good details. My Henge has 4 pins, with the jumper off or on [blank]/5v it's 5 volts, on 5v/6v it's 6 volts, and 6v/7.4v it's 7.4 volts.
The jumper just bypasses or adds resistors to a SENSE line, so you can typically make them fully adjustable with a trimmer pot.
It's too bad the FVT is sold out atm. I think I'll try the 4/6A Henge next time and just mod it.
The jumper just bypasses or adds resistors to a SENSE line, so you can typically make them fully adjustable with a trimmer pot.
It's too bad the FVT is sold out atm. I think I'll try the 4/6A Henge next time and just mod it.
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Ditchrat
RCC Addict
Really?
I buy then 6 at a shot for under $3.00 each. Takes 45 days to get them, though
Hydrocarbon92
Rock Crawler
Care to share a link? And they are 4A continuous and 6A peak or greater & 7V or higher, correct? Wired & shrink-wrapped?
I can get 5A peak 2A continuous for $0.30 and even stack them for nearly double power, but they still need wires & shrink wrap & voltage adjustments.
I can get 5A peak 2A continuous for $0.30 and even stack them for nearly double power, but they still need wires & shrink wrap & voltage adjustments.
intheworks
Quarry Creeper
i tested the FVT bec and its output is 5.3v without the jumper then 6.3 and 7.3 volts
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soze
I wanna be Dave
I picked one of these up, but haven't had the chance to stick it into a rig yet. If all goes well, I'll probably start getting these regularly.
intheworks
Quarry Creeper
mine was a a little glitchy running off the tekin fxr esc at 6v 3a. it would return center when overly stressed and then back to where it was. Needs a dedicated BEC for smoother operation.
either this one https://www.ebay.com/itm/USA-Stock-...092373?hash=item1a2d88d715:g:aI4AAOSw9OFZNnhh
or a cc BEC so you can program to the exact voltage output you want. right around 8v output, I wouldn't go the full 8.4v based on what hydrocarbon said.
https://www.ebay.com/itm/Castle-Cre...X8AAOSwFV9Xzdw6:sc:USPSFirstClass!22310!US!-1
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