My COMETA is a POS - does not connect with tailcap spring - burned my finger [Hobby Ending - Enough is Enough]

I picked up my Cometa today. During the teardown, I noticed to damage to the anodising on the black disk thingy. The damage seems to be more towards the LED than where I would expect damage from the solder points to be, however I should note that after screwing the disk on and off again, the damage was worse. One of the solder points does however a spiky bit.

I’ve attached a link to the photo below (I’m having issues embedding the photo)
https://www.flickr.com/photos/stephenk1977/26326237223/in/dateposted/

Any advise on whether this is purely cosmetic, or likely to result in a short would be greatly appreciated.
I won’t be using the light until I’m confident it is safe.

Heres your picture.

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Thanks. I need to read the how to post a picture thread!

stephenk - No pic showing, and link doesn't work for me... If you are talking the bottom side of the disc, then yes - sounds like a potential short. If you could flatten out the solder, or if not, cover them up, but there will be a lot of heat there, so use something that can take the heat.

On mine, excessive solder was used - bumper up way too high, but think mine still cleared. My fix was to reduce the solder and flatten it out with the flat tip iron.

It gets worse each tome you take it off and put it back on???

Hmmmm. it must be rubbing against something. Let me think a minute and get some coffee in me. :wink:
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Thanks for fixing the pic MRsDNF!!!
I just added it to his original post. :slight_smile:

Got my Cometa yesterday, I made a plastic ring for battery. I tried to open it up to check the solder points but the concave ring on mine is stuck, I cant seem to get it off tried to pry it out but im afraid to use to use too much force. Am I missing something should it be difficult to remove? I tried the light out anyways and it is in single mode pretty bright. I thought it was in muggle mode, but no amount of half clicks will put me in config mode. Any help very appreciated, seems the main thread was locked so I asked here.

Yeah, I can see where both your positive & negative solder joints are hitting the cover on the slanted part. It looks just like two of mine did.

The rub marks out closer to the edge is where it is rubbing on something. Possibly a high spot on the MCPCB. See if you can see any coinciding rub marks on it, you should be able to see rub marks on the solder joints also.

DO NOT pry it, it screws out.

IF it is in a single mode and real bright you have a problem!!!

QUIT using it till you find the problem

Standard right hand thread on that retaining ring.
A small rubber strap wrench is a great help in situations like this as it dosen”t mark the anodizing.
Like this from Harbor Freight http://www.harborfreight.com/2-pc-rubber-strap-wrench-set-69373.html
I had murder getting the lens bezel off mine where it had been overtightened.

If you got one of those cheap pair of rubber-like textured gloves, they work wonders - I use them all the time on lights. Best first option before strap wrench's, etc.

+1 Do not pry it, it is threaded. Use anything rubber to get a grip and unscrew it

I don’t think that strap wrench will do anything in this situation as the retaining ring is flush and there is nothing to put the strap wrench around. He needs to use either needle nose or snap ring pliers.

It was not real clear but they were not talking about the Pill they were talking about the anodized cover the guy above was trying to “pry off with a screwdriver”. :person_facepalming:

So far on all mine I have just grabbed the thing and screwed it off. Maybe his was on tighter or something

Noted by Tom E. in the other thread, he “used one of the ”19 mm 3M isolators”:http://www.mtnelectronics.com/index.php?route=product/product&product_id=122&search=3M&description=true for the batt+ end problem” — cut the center opening a bit wider and it fits nicely over the exposed metal.

Yea, the BASEN cell has about a 15 mm wide metal cap, so the 18.8 mm or so of the isolator should cover it easy. I used cutters to make the center hole a bit wider & rounder. Did a ton of them like this when I was mod'n Super Shockers ().

Nope. Unscrew the zoom part from inside the head a ways, and the retaining parabolic thing will emerge from inside the outer shell so you can grab it easily.

I had to use well-padded-and-taped ViseGrip pliers the first time, the thing was cranked down so firmly.

Jeansy made a breakdown/fix video if you’re having difficulty.

Thanks for the feedback. Looks like I’m going to have to go down the replace or refund route sadly. Unless the 2 fundamental safety flaws of the Cometa will be fixed in an updated version, I’ll probably be the latter option. :frowning:

(BTW Banggood did kindly send me an insulating disk in request, but that is now irrelevant.)

What was the third again?

[quote=stephenk]

I’m confused here. As I look at my light, and that cover thing in my hand, it looks like when I screw it down that the solder points will miss landing on the top portion of that covering ring, but would instead be in that deeper middle area. Is that where they should be, so as not to cause any issues?

thank you.

patrick