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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › WARNING!: Castle Creations BEC Pro 20 truely a peice of junk!
11-18-2011 06:06 AM  6 years agoPost 1
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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I crashed my Raptor 90 2 weeks ago.
At the time, I thought it was either brownout or a radio glitch.

Turns out, it was another bad Castle Creations BEC Pro 20.
I say "another" because this is the 2nd BEC Pro that has failed in the same way - and the 3rd that I've had problems with.
But, like a fool, I kept buying them, hoping the Castle Creations would get it right at some point.

I've had two fail like this:
The output wire will break off the circuit board. It stays in contact with the circuit board until there is a vibration (like a nitro heli engine while it is running). But, when you check the output, it may show the correct voltage - until you pull gently, squeeze the case or wiggle the wires - then it goes to 0v.

On the 1st one, it was one wire broke. On this one, it was both.

After the first one, CC replaced it, and I used some silicone sealer to glue the ferrite core to the new one's case - I thought that would help. It didn't.

If you are using a CC BEC Pro 20 - I strongly recommend you throw it away!

If you haven't crashed yet, you are on borrowed time.

If you have already crashed a heli due to what you thought was a radio glitch - it most likely was the BEC Pro 20.

If you had your heli "freakout" while it was doing some high-G stunt - it was the BEC Pro 20.

These things are crap!

I love the idea behind the BEC Pro 20 - 6v to 50v input, adjustable output voltage, 15 amp continuous and 20amp peak current.

But, they used a surface mount solder pad for the output wires.
These are 16awg wire soldered to the top of the circuit board. And, the wires share this solder pad with a big diode. This should be a "through hole" solder pad - better contact & mechanically locked in place.

You have no idea the wires are broken from looking at the outside. Everything appears normal, until you remove the case. Then, you see the wire(s) are no longer attached.

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11-22-2011 10:31 PM  6 years agoPost 2
Richardmid1

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Leeds, England

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Its a Castle Creations product of course its junk!

60% of the time, it works every time!

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11-23-2011 05:34 AM  6 years agoPost 3
blackbird

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thessaloniki-Greece

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Was that a v2 bec?

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11-23-2011 06:56 AM  6 years agoPost 4
OICU812

rrMaster

Edson, Alberta, Canada

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Countless of these have failed, it is nothing new unfortunetely.

...Once upon a time there were Nitros, flybars and frequency pins...

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11-23-2011 04:04 PM  6 years agoPost 5
tracknoob

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Miami Florida

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Was it a V2? I would certainly like to know, since that is what i am running.

And/or does anyone with a V2 know if fixing this was part of the improvements to make the V2 version?

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11-23-2011 06:35 PM  6 years agoPost 6
ticedoff8

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Morgan Hill, CA. USA

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Yes - all 3 of the BEC Pro 20 units that failed were V2.
THEY ARE JUNK!
I've been told the "V2 fix" was to add strain relief to the wires.
I never saw a v1, so I don't know what the failure mode was, but the "V2" still breaks wires.

I started spreading the word around our flying site.
So far, I have uncovered three other pilots whose heli crashed due to "mysterious circumstances" - but they all had CC BEC Pro 20 v2 installed.
Two other pilots who had BEC Pro 20, but hadn't crashed, decided to pull them out before they killed someone.

BTW: The other issue I uncovered was the programming of the output voltage. I had to return 3 units to get 1 that worked.
Symptom: If you program the output to 6.1v and check it with a meter - it checks out as 6.1v.
If you reprogram the output to 6.6v and check it with a meter - it is still 6.1v
If you reprogram to 12v output and check it with a meter - it is 12v.
If you reprogram the output to 6.8v, and check it with a meter - it is 6.1v.

Most people don't care - they program the output to 6.2v and forget about it.

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11-23-2011 08:53 PM  6 years agoPost 7
Mike0251

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Hills of the Blue Ridge VA

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Hercules is a very excellent BEC. A little research prior to purchasing could have saved you some anguish. Sorry for your loss. Spread the word, change it out now.

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11-24-2011 09:03 PM  6 years agoPost 8
tracknoob

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Miami Florida

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I gotta believe that carefully removing any load on the wires (especially from that heavy toroidal!) as pictured here on the my setup for Gaui X5, would be sufficient to keep from stressing those connections.

I do agree completely, however, that if those wires come straight out without any strain relief, and are merely tacked onto the top of a pad with no through-hole on the other end, then that is just very bad practice.

I am extremely grateful that this potential critical failure point was pointed out by the OP so I could make sure to 'immunize' myself from a weak spot!

I might even hit the exit points of both sides with a glob of hot melt just for extra measure.

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11-25-2011 02:55 AM  6 years agoPost 9
Justin Stuart (RIP)

rrMaster

Plano, Texas

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Hercules BEC is a good choice.

Avant RC
Scorpion Power Systems
Thunder Power RC
Kontronik Drives

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11-25-2011 12:40 PM  6 years agoPost 10
tracknoob

rrApprentice

Miami Florida

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Several posters have just said: "Hercules is good."

Can any of you please post a photo of the strain relief/wire-attachment method used by the Hercules, as was done by OP above for the Castle?

TIA!

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11-26-2011 08:42 PM  6 years agoPost 11
esmoglo

rrKey Veteran

Florida USA

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I had one of these fail as well, Castle is Junk its just that simple the failure cost me a new 550E total loss. I for one am done with CC after the CC120HV and this BEC no way will I buy Castle Cremations again.

Ugly can be fixed stupid is forever!

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11-27-2011 05:47 AM  6 years agoPost 12
blackbird

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thessaloniki-Greece

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Too bad for CC ,with so many fires of their products they loose many buyers.I wonder if they didn't have all that problems and fires if anyone was going to buy another brand esc or not.

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11-29-2011 04:18 PM  6 years agoPost 13
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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tracknoob
I might even hit the exit points of both sides with a glob of hot melt just for extra measure.
I like the way you secured the ferrite core (in your picture) - but it may not help.
I used some RTV to glue the core to the outside of the case and then wrapped a tie-wrap around the whole thing. If it helped, it was only to prolong the time before the wires broke.

I would say that anyone that continues to use this CC BEC Pro 20 is asking for trouble.
Any experimentation you do with strain relief on the output wires is just that - experimentation.
The proof that the experimental strain relief failed is a crashed heli - and the consequential damage it might cause.
Best case scenario: The heli is a smoking pile of rubble in the in middle of your field.
Worst case: Do you fly around people? You fill in the blanks.

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11-29-2011 05:51 PM  6 years agoPost 14
tracknoob

rrApprentice

Miami Florida

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"I would say that anyone that continues to use this CC BEC Pro 20 is asking for trouble. "

Can you tell us what model of BEC you went to instead, and provide some pictures of it's wire attachment/strain relief system fro comparison?

Thanks!

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11-29-2011 06:57 PM  6 years agoPost 15
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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I went to a Perfect Regulators Spekline.
http://www.perfectregulators.com/in...7&product_id=66
I use an AR7100R - this is pre-wired and literally "plug & play"
It is simple and solid.

Before I bought it, I called the manufacture and asked some questions about it.
It uses through-hole solder pads for the 16awg input & output leads.
It is switchable between 6.0 & 6.5v volts out.
BUT... it is limited to 2s LiPo input.

Sorry, I don't have a picture of it right now - but the link above has a pic.

He designs & manufactures different regs for differnt requirements.

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11-29-2011 08:04 PM  6 years agoPost 16
tracknoob

rrApprentice

Miami Florida

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Yup, the 2S only makes it a non-starter for my Gaui X5's needs, but it is a nice looking part.

Thanks!

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12-09-2011 03:09 PM  6 years agoPost 17
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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bump

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12-09-2011 03:38 PM  6 years agoPost 18
tracknoob

rrApprentice

Miami Florida

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"bump"

Why?

You've said your piece. You've made your point.

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12-10-2011 08:04 PM  6 years agoPost 19
ticedoff8

rrKey Veteran

Morgan Hill, CA. USA

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Why?
Because it is important. This could potentially kill someone. I think it shouldn't be forgotten - at least for a little while.

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01-16-2012 11:09 PM  6 years agoPost 20
Egroeg

rrApprentice

Cyprus

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Having a helicopter come down due to a bad BEC is as bad as it can get for me.
These machines , if we exclude the money factor , cost allot of effort and need to inspire confidence.
I have been using these regulators
http://shop.rc-electronic.com/e-ven...t=6&c=541&p=541
Which are made by professionals for professionals.
I have eliminated dodgy electronics in kits that came with low quality stuff and replaced with better stuff for obvious reasons.
The regulators I recommend are top...only when you get one will one realise the true benefits and peace of mind one has.
There is a wide selection to suit every need.
They are programable to suit various batteries....
There is even the duo with dual batt. Inputs for double safety.

No Pitch...No Fun!

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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › WARNING!: Castle Creations BEC Pro 20 truely a peice of junk!
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