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Other › Heads Up: Medusa BEC's in/out wires labeled backwards, caused major damage !
01-28-2007 02:18 PM  10 years agoPost 41
Peter Wales

rrElite Veteran

Orlando Fl

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If the instructions had been wrong and the label on the right way round and he followed the instructions, and blew it up, MRI would probably say, why didn't you read the label, its clearly marked on there. Either way, the customer is wrong and MRI dont care what damage they caused.

Peter Wales
http://scalehelicopters.org

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01-28-2007 02:54 PM  10 years agoPost 42
classic

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All over the place!

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If you click "send an email" on mri "s post hopefully that will get to him.

This is what I wrote and if everyone else sends one also, maybe they will TRY and work something out.

Hi MRI
I really think you guys need to step up and fix this. I know I wont and there are many others out there who WILL NOT do business with you and will DO OUR BEST to make sure anyone we meet at the flying feilds, funflies, trade shows {yes, some of us do go}ect... does NOT do business with you ether.
My recommendation for you to try and save this from hurting your bussiness,
You could meet the guy half way, I realize that offering your products instead of replacing his is a cheaper way out for you, but he should have a choice of what brands he wants in his heli. Maybe you could step up and TRY and work out a compermise that both can live with?

Which is worse, ignorance or apathy? I don't know and I don't care!

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01-28-2007 03:32 PM  10 years agoPost 43
Isaac F

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Panama Republic of Panama

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A notice about the mislabeling was recently posted on various web sites and forums after we verified there was a problem with the labeling.
Mr MRI, do you post this notice here in Run Ryder??? Its look like not! BOTTOMLINE, mislabeling is your FAULT!

Hey guys, I am placing a order on http://www.grandrc.com for two
MR-BEC-45035 but I just cancel the order......Thank god I read this post!

What similar product on any other brand you recomend me. I will never buy a Medusa product again and I will toll about this problemo to all my flying budies.

We need to stay toguether and show this people that yhey will not rip off any of our friends any more!

MRI: Shame on you!

.

Speed of light is greater than speed of sound. Some people seem very bright until U hear them speak

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01-28-2007 05:48 PM  10 years agoPost 44
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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oh how i love the power of RR. MRI, if you had have steped forward, admited this was all a manufacturing error, corrected it, made your customer happy, the exact opposite could have happened.

manufacturers make mistakes, but when they step forward and work with the customer to make sure things are set right, they actually get more buisness. i have seen that happen on here when soemthing like that is posted.

Shawn
Team Leisure-Tech
Team HelixRC

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01-28-2007 05:59 PM  10 years agoPost 45
CRAZYKEV

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Cincinnati,Oh - U.S.A.

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DIRECTIONS!!!!

Even if he added the plug...he should have READ THE DIRECTIONS!!!! I read the directions twice before applying power.(I went to school for Electronics engineering too!!no degree)

IT CLEARLY SAYS which wires do what, they are color coded.!!! Even if the label is backwards, the directions would have told you different.

So you brain farted...it happens to everyone.

Im sorry you smoked your stuff, but I still think your at fault.

Just my opinion.

Jeff

^^I agree 100% with Jeff on this. Should have read the directions!

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01-28-2007 06:59 PM  10 years agoPost 46
TrexRookie

rrKey Veteran

San Francisco, CA

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MRI I'm sure has spent a hefty amount of money on researching/manufacturing solid BECs... mislabeling is NOT something anyone would expect them to make the mistake of doing... It's the manufacturer's responsibility to ensure the product is 100% ready for customers... not 95%... not 90%... And yes, there are guys out there that brain fart on occasion.. that doesn't justify them mislabeling the final product.

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01-28-2007 07:05 PM  10 years agoPost 47
CRAZYKEV

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Cincinnati,Oh - U.S.A.

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Well, not reading the directions makes him way more responsible for the problem. If you don't want to read the directions for a product then you are taking a big risk of screwing something up.

The BEC came with a connector on the Rx side. It's a no brainer! If he cut it off or added a sonnector of the exact same type on the input side(not a smart move either ) then how could you not expect something to go wrong!

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01-28-2007 08:02 PM  10 years agoPost 48
Wheelhaus

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Denver

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This thread isa also in RCGroups.
maxpower97 posted on RCG: If he did add a plug to the Bat. side and then took off the servo plug and hooked it up to a battery. I can't say its totally medusa's fault. There shoulda been a light that clicked on when your removing and installing new plugs to make them match a sticker.
I agree 100%...

When you received the unit, were the PLUGS correct, but the STICKER backwards? or were they BOTH backwards? I think Max is right, unless they were BOTH backwards (mislabelled AND miswired), this is half your fault.

I'd like to really figure where the fault really lies.
It's one thing to blame the company for a truly faulty product...

But its another thing to point the finger solely at a company for a 100% functional product that was simply mislablelled, but then modified/rewired by the end user...

These heli forums have a tendency to stick together so closely that we blindly follow each other's reccomendations and "bad experiences" as fact. Although we ARE a community, we need to be sure we're following truth and fact, not pure opinion, especially when jobs and business reputation are at stake.

I have a feeling that the wiring was correct, and if plugged in as-is it would have worked fine, even if the label IS backwards. However, by cutting the wires there was no physical reference for the original wiring, so the label was used for wiring. Being labelled backwards, he soldered the wrong plugs to the input/output leads following the sticker only, inadvertently hooking it up incorrectly.

I understand Medusa sending you another, that's kind of them, but it's truly NOT THEIR FAULT if it was hooked up backwards. That's all you.

..........
Dave

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01-28-2007 08:05 PM  10 years agoPost 49
Wheelhaus

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Denver

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IF this is the case, and it would have worked from day 1, Lakespinner2 YOU need to apologize to EVERYONE you've sent this information to, including the company. You're unfairly placing blame for your own actions. Your ignorance and haste is giving a good company a bad reputation.

..........
Dave

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01-28-2007 08:23 PM  10 years agoPost 50
AGRAV8

rrProfessor

Mosquito Coast......Houston Texas

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sorry, guys

since this is a GENERAL practice to remove and/or attach leads onto this type of product, and since the shrink wrap has NOT been removed (which might give an electrical engineer a clue as to what is input/output), with the wires coming out both 2 lead of the same guage.... what else might give him or anyone else a clue as to the orientation of the input/output leads BUT the label???

Tight community or not... I think the vast majority of guys have expressed their opinion as END USERS, not as reps or sponsored users. Regardless, it is not ultimately what ELSE might have contributed AFTER the product was mis labeled... it is the fact that the manufacturer gave incorrect information on the product.

The BAD REPUTATION is not from Randys' comments.... and others have made comments about the PERCIEVED customer support (or lacking thereof) on other issues with them. WHERE THEN IS THE NEED FOR AN APOLOGY FROM HIM??

That said, I am going to get a new electric heli, and based on not only HIS experience, but that of others concerning Medusa, you can bet YOUR BEC I will NOT be using their products in the future.

GOOD guy list-39, BAD guy list-0

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01-29-2007 01:26 AM  10 years agoPost 51
Isaac F

rrKey Veteran

Panama Republic of Panama

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A notice about the mislabeling was recently posted on various web sites and forums after we verified there was a problem with the labeling.
I was checking Medusa Research web page and they dont eaven have a notice or any type of warning to customers about this mislabeling.

So Mr. MRI, can you let us know in what forum or web site you posted the mislabeling notice?

THX,

Isaac

.

Speed of light is greater than speed of sound. Some people seem very bright until U hear them speak

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01-29-2007 01:32 AM  10 years agoPost 52
spruce

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toledo, oh

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Lakespinner2 YOU need to apologize to EVERYONE
no, he does not, IT WAS LABELED WRONG, MRI needs to pony up some parts.

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01-29-2007 02:26 AM  10 years agoPost 53
Unbalanced

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Melbourne, Australia

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That is a big and clear label - I'll bet that trap would catch quite a few others. Tough call blaming the customer for the consequences.

Jeff

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01-29-2007 03:20 AM  10 years agoPost 54
lakespinner2

rrVeteran

north carolina

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Ok, guys, sorry I haven't been on the boards, I was out of town having some fun at a fly-in in Georgia. It was good to get away from this mess.

I'll add a few points, grab a chair and some coffee, this is going to be boring.

First, let me say I always add a ferrite ring to any lead coming from a switching power device before it goes into the receiver. On an electric bird that usually means the ESC and the BEC. They basically modulate a pulse width which can sometimes cause enough extra RF noise to reduce the receiver range when the motor is running or if they're mounted too close to the receiver. Generally you can get away without using the rings but the rings are less than a buck and work very well and weigh almost nothing. Many ESC's now come with them and some may have built in circuitry to do the same thing, but I add them anyway just in case. Generally if you loop the receiver lead from the ESC or BEC through the little ferrite ring 4 or 5 times it works fantastic. They often make a BIG difference in reducing glitchs in the little t-rex 450's, depending somewhat on which receiver you're using.

Now, the BEC wire is way too short to reach from the front of my T-rex 600, where it's mounted, to the rear of the rex600 where the receiver is mounted. It's always best to put some distance between the ESC or BEC and the receiver. The BEC wire is WAY TOO SHORT, even without the ferrite ring, wrapping the rx lead around it a few times makes it even shorter. So, I always end up adding an extra length of wire to BEC's. Sometimes the ESC's come with longer wires, sometimes not.

Ok, here's what I do: I whack off the very end of the wire along with the existing connector, and add about 6 or 8 inches of extra wire, sized to fit perfectly, and reattach a servo connector. This is a five minute job, a monkey could do it with the right tools. BTW, if you find you'd like to lengthen or shorten and servo leads or 'BEC' leads, and you don't like soldering, here's a great tool, well worth the money.

Tool

Then, on the other end EVERYBODY has to put some kind of connector on those tinned naked wires. I suspect most people use the big red Dean's connnectors. Sometimes I use those and they work very well. On the last t-rex 600 I built, before the current one, I used the little JST connectors, they work great too. The point is, it really doesn't matter what type of connector is put on the wires, as long as it mates with an opposite gendered connector. On this particular project I DID, I repeat I DID, I'll say it again... I DID use a little black connector, same connector as a servo connector. I have the opposite gendered connector mated to it and then running to the main battery power about an inch away.

This lets me plug in JUST the receiver power on the bench without having the ESC and motor powered up. It's no big deal but I think it's a little safer when setting up a heli on the bench to NOT have the main motor and ESC powered up. Some people move the motor and pinion away from the main gear to do the same thing. Removing the blades works good too. Anyway, before someone comes and says I shouldn't use the same connector on both ends let me first agree with you. Had I known I was going to receive a reverse labeled BEC from Medusa I would have put some other random connnector on it to remove this "connector-type" issue from the mix. They seem fixated on the 'type' of connector I used and not on the fact that
the labels denoting the Battery-input connection and the Load connection are wrong 'right on the device itself.'

In my quest for safety and 'idiotproofness' (meaning myself) I tiewrap that connector and wire down so tight and so short it can only move just barely enough to plug and unplug it. The receiver end cable is tiewrapped nearly a foot away back at the rear of the heli. It is impossible to get the two connectors within 10 or 11 inches of each other. A silver sharpie works well to mark "45v," in tiny letters, on the connector as well to double ensure there's never any confusion. I also put all wires going to the receiver inside nylon mesh sleeving. It adds a little extra protection from the sharp carbon frames and weighs almost nothing.

I realize that IF I could have used the short wire that I 'might' have caught their mistake. I might would have thought it odd they had no connector on the low voltage end (Load, as labeled). In all likelyhood I might have added a connector to the other end and kept going but we'll never know. Maybe they sell the same BEC to use in other applications using different connectors. Who knows. It was very easy to just stick a connector on the other end and continue building.

In any case, if you check the instructions included with the BEC (at least my two BEC's) the diagram shows a red/brown pair of wires on both ends of the BEC. My two BEC's have different colors on each end; one red/brown pair and one red/black pair. Even though the wiring diagram colors don't match the actual BEC, the written text IS correct, and that is what I SHOULD have noticed. In my first post I said i didn't read the instructions, I didn't. The notice MRI posted on various web sites after I brought this to their attention is correct, go by that connector... Not the Label on the device itself and not the colors of the wires in the instructions.

I admit I screwed up ! I wish I would have known they had the input and output wires labeled backwards. In fact I wish I HAD connected the darned thing backwards, it would have worked fine. I wish I had bought another brand.

As far as them offering to compensate me. They said no, flat no, in multiple phone conversations and emails. On one subsequent call I thought maybe, to salvage something, anything, maybe they would offer some of their products as compensation, it might be cheaper for them. I really don't know what they make, all I've bought have been motors and BEC's. When "I" mentioned compensation using their products they DID offer a 20% off coupon on 'ONE' of their motors, good for two months, which I believe he said runs around $120 or so, so that coupon would amount to about a $24 dollar reimbursment for the damage. (Just the two totally dead and blown components, gyro and one servo, come to $340; not counting the other two likely damaged servos and receiver.)

In any case, I told them I'd be satisfied, not happy, but satisified with the $340 and I'd cough up the funds to replace the other two servos and rx, I just don't trust them after being cooked at high voltage although they do still work on the bench. I can put the rx on a small t-rex 450. They're fun and cheap to repair if it does have a problem. And it should cause less damage than a t-rex 600 if anything does go wrong.

Anyway, $24 wasn't what I had in mind, at all. In fact, I think the $24 offer made me more upset than I already was having just spent over $500 to replace my electronics. I still haven't bought the rx.

I sent them a draft of the posting I was considering posting. Then, they came back and offered me a very specific motor and yet another BEC ( it would be my third Medusa BEC); that offer tallies up to roughly $150 worth of merchandise that I really don't have a use for. It's a motor for a t-rex 600 using the stock 6S battery setup, I already have two 6s motors and they're coming out for an 8S and a 10S setup in my two t-rex 600's. I'm sure it's a great
motor but I just don't have a use for it. I need a gyro and a servo and I don't believe they make either. At least I can't find it on their web site. I was thinking equivalent product of my choosing for an amount that matches or exceeds the value of the two dead items. I really don't know how i could use the merchandise but as long as there was no time limit, or a very long one, I might be able to eventually use enough BEC's and little t-rex motors to be useful.

By the time I replace the suspect receiver I'll have spent almost exactly $600 to repurchase all the electronics, I'm at $500 now. (The ESC wasn't harmed, luckily.) With very expensive batteries and a gyro onboard, and people's safety in mind, I just couldn't in good conscience put a powerful setup in a heli I didn't truly trust myself.

If I've misled anyone here I am truly sorry. That was not my intention. I do realize that if folks consider my adding connectors and a ferrite ring somehow excuses them from the reverse labeling error then I guess, well, we'll have to agree to disagree. In that case I might really be responsible for not catching their manufacturing error (and what their test/quality control functions missed). If I am at fault for all that then I'll accept it.

At this point I don't expect any compensation at all from them over this. I've written it all off now. I considered the $24 offer, and the one motor/bec offer and decided that having other people NOT go thru this same thing was worth more to me than their final offer. In fact they told me in their last email that their offer ... "will stand until you choose to post this or any similar account in a public forum."

I'll have to re-read the thread to see what I missed but hopefully this will fill in some gaps, good or bad.

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01-29-2007 03:59 AM  10 years agoPost 55
classic

rrElite Veteran

All over the place!

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I would REALLY like to see what they have to say to all the comments here, or if they will even come back here to answer any questions raised such as which boads exactly did they post this "sopossed" warning on? And was the warning posted before or after they posted on here??

Which is worse, ignorance or apathy? I don't know and I don't care!

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01-29-2007 04:06 AM  10 years agoPost 56
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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well, considering EVERYONE here is saying its the manufacturers fault, but the manufacturer is the only one saying its the customers fault, i'm not sure the manufacturer has a lot to back up on. i dont agree with anything he said, and neither has anyone else.

i also believe its too late now. if things get set right only because it went this far, then the damage is done. it should have never gone to this extent, and it should have been resolved before any posts were made. and i dont mean a crappy offer to send another possibly misslabled BEC, i mean to recover the costs of the ALL damages. this wouldn't have happened if the BEC was labeled correctly, PERIOD.

Shawn
Team Leisure-Tech
Team HelixRC

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01-29-2007 04:16 AM  10 years agoPost 57
mikeangiulo

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Bellevue, WA - USA

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If I only progressed after fully understanding the instructions in this hobby I'd still be staring at the instructions. Nine times out of ten they are hopelessly translated from some other languate leaving the end user to try and decipher things like exploded diagrams, pictures, and - labels. I mean come on can you imagine trying to make sense of half the stuff written in English in a Thunder Tiger manual or in a Futaba Gyro pamphlet? I have an aircotec variometer that is the worst of all - a dozen engineers at the flying field have them and none of us can figure out what the various advanced modes and settings mean. You just sorta push buttons and figure it out.

I'm with all of you who say that Medusa should replace the burned out parts and just be happy nobody was hurt.

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01-29-2007 04:18 AM  10 years agoPost 58
Furious Predator

rrProfessor

Kitchener, Ontario, Canada

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i know what you mean, my last build was in Engrish. things like "WARNING, this is a high motivity doll". if i hadn't already been flying for several years, i would have had no idea whats going on. i still dont know what it means, but i had to look at the exploded assembly drawings taken driectly from CAD to build the helicopter.

Shawn
Team Leisure-Tech
Team HelixRC

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01-29-2007 04:37 AM  10 years agoPost 59
borneobear

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Kuala Lumpur, Malaysia.

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They would win a lot more customers replacing the burned out parts then standing by their "read the instructions" principle.
I bought this BEC, and I'm lucky I got a "good sticker".
But with many options out there and MIR being so inhuman about this, I'd say thats THE LAST THING I'll ever buy from them.

To the guy with burnt up parts, hang in there. Even this will pass.

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01-29-2007 07:20 AM  10 years agoPost 60
dav_bon

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Hervey Bay, Qld, Australia

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Still counting the views =
1200 x (how many others they will tell) x (how many BECs each might have bought)= alot of lost sales.

Also how many shop owners & resellers will change their mind about selling a product with no support.

3DMP, MP XL-E, Logo 14, JR 9X2

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Other › Heads Up: Medusa BEC's in/out wires labeled backwards, caused major damage !
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