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Mine Exploration Forum

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Author Fellows lamps forum.
ttxela

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Joined: 04/09/2007
Location: Cambs

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Posted: 12/03/2018 13:12:29
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royfellows wrote:

I have just overhauled Ttxela's Magnum Star which was an 8V. Sold 6 years ago the Li Ion power bank was past its landfill date and it had the old Mk1 XML T6's. I made up a new battery and fitted 4 new XM-L 2 U BINS. Regardless of this the lamp was working OK as it came in, just performance down. He looks after it well, it was kept in good condition.


Very much appreciated Roy, although it has seem a fair bit of use from my point of view, living in Cambs means it's probably had a much easier life than FPOP's as I imagine he's underground much more often.

I have read the warnings recently about keeping your batteries indoors in cold weather so now keep all my lamps in the house whereas previously they were kept in the shed with the rest of the gear so that may have contributed to the batteries deterioration perhaps.
IP: 188.39.178.242
royfellows

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Joined: 13/06/2007
Location: Great Wyrley near Walsall

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Posted: 12/03/2018 14:19:35
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Its not cold that damages the battery cells, its attempting to charge or use them is sub zero.

As far as your cells go, its more likely the Chinese cells that I was having to use at the time due to high cost of Sanyo or Panasonic. This has all changed with electric cars necessitating higher production and hence lower cost.

--

..................a proper engineer not a marketing man.
IP: 88.105.106.10 Edited: 12/03/2018 14:21:46 by royfellows
royfellows

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Location: Great Wyrley near Walsall

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Posted: 18/03/2018 16:54:28
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First Scorpion sold, the X12.

Below is the complete kit including cycle and tripod mounts etc



(click image to open full size image in new window)

the GoPro helmet bracket is very nice



(click image to open full size image in new window)

I am very proud to be producing this lamp.

--

..................a proper engineer not a marketing man.
IP: 88.105.106.10
royfellows

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Joined: 13/06/2007
Location: Great Wyrley near Walsall

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Posted: 26/03/2018 16:01:08
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Scorpion X_12 snap on diffuser.



(click image to open full size image in new window)

Of course the X_8 with its independent floodlights will not need this.

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..................a proper engineer not a marketing man.
IP: 88.105.106.10
royfellows

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Joined: 13/06/2007
Location: Great Wyrley near Walsall

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Posted: 14/04/2018 10:47:48
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I have taken the Scorpion EX off sale temporarily as I have conceived some design improvements. non yet sold, so no issues there.
Basically, an EX with high waterproof integrity, maybe suitable for diving, will have a strong appeal for hard cavers who would rather have tough wear features than the ability to cook bats.

It will feature a single lead with no connecting plug, sealed aluminium battery box with charging through a round access plug together with the combined spot and flood as currently described.
Battery check by blue 'Nightrider' actuated by a second IP68 rated button. Obviously the price may well increase but looking at the current price of competitor lamps I feel little to worry about.

Scorpions do have high waterproof integrity, better than the Lynx, however there is a caution on any prolonged immersion other than a few feet would cause water to pass up inside the cable from the plugs. I am currently testing the limits of this this as I have an 8 feet deep pool, no kidding.

I am aware that no ordinary cavers or mine explorers will be spending 2 hours 8 feet under water though. Diving means diving.

Will advise in due course.

--

"You are not consumers, you are the product" Google and Facebook, ''''Masters of the Universe''''
IP: 92.10.71.5
ttxela

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Joined: 04/09/2007
Location: Cambs

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Posted: 16/04/2018 12:41:29
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ttxela wrote:

royfellows wrote:

I have just overhauled Ttxela's Magnum Star which was an 8V. Sold 6 years ago the Li Ion power bank was past its landfill date and it had the old Mk1 XML T6's. I made up a new battery and fitted 4 new XM-L 2 U BINS. Regardless of this the lamp was working OK as it came in, just performance down. He looks after it well, it was kept in good condition.


Very much appreciated Roy, although it has seem a fair bit of use from my point of view, living in Cambs means it's probably had a much easier life than FPOP's as I imagine he's underground much more often.

I have read the warnings recently about keeping your batteries indoors in cold weather so now keep all my lamps in the house whereas previously they were kept in the shed with the rest of the gear so that may have contributed to the batteries deterioration perhaps.


The Magnumstar has now returned from it's rebuild. I hyave to say I'm very pleased. It's back to its full performance as I remember it in my brief test on receipt.

I've yet to try it underground again but no doubt I will before too long Cool
IP: 188.39.178.242
pwhole

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Joined: 22/02/2011
Location: Sheffield and the Peak District

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Posted: 16/04/2018 13:16:30
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This weekend saw the first test of my new Dragon Ex - on Saturday a trip into Peak Cavern, where I was able to light up the whole of Five Arches, which makes a nice change, as it's a dingy place at the best of times. The Main Streamway up to Far Sump was also rather pretty, now being able to see all the roof from the floor. We also did the grovelly climb up Watershed Aven and into Boom! with no issues, though ironically the 'low' brightness setting is not that low with a rebelay to pass in a 1-foot wide muddy rift! It got very wet and muddy by the end of the trip, so had to be hosed clean.

Yesterday was digging in Longcliffe, which is mostly close-proximity very white limestone, so I didn't need full power at all, apart from looking up the shaft at the end. Again, it got very muddy, and bashed about a bit, but no issues at all. It's on its first recharge now.

I think the only possible risk is in really tight and gnarly stuff, which I am known to do, where the cable may protrude away from the helmet enough to get caught or bashed, but I can always swap to the Stenlight in those conditions I guess. Overall I'm very pleased, and the full power setting really is impressive when there's the space to use it. There may be a Titan trip soon, so that will be the ultimate test I guess.
IP: 81.174.241.13
droid

Joined: 31/10/2010
Location: Tamworth

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Posted: 16/04/2018 14:12:35
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If it's owt like my old MagnumStar it'll be (literally) brilliant.

Lit up the big Oakley chambers like a pound of magnesium ribbon.....Laugh
IP: 80.189.43.45 Edited: 16/04/2018 14:13:58 by droid
royfellows

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Joined: 13/06/2007
Location: Great Wyrley near Walsall

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Posted: 16/04/2018 15:15:48
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pwhole wrote:



I think the only possible risk is in really tight and gnarly stuff, which I am known to do, where the cable may protrude away from the helmet enough to get caught or bashed,


Why I enclose cable ties in the fitting kit?
You may have to drill some extra holes though, but it wont weaken the helmet. The cables certainly need tying down along the side of the helmet. An alternative is self adhesive cable secures, but I have never tried them.

--

"You are not consumers, you are the product" Google and Facebook, ''''Masters of the Universe''''
IP: 92.10.71.5
pwhole

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Joined: 22/02/2011
Location: Sheffield and the Peak District

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Posted: 16/04/2018 18:54:33
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I've threaded an adjustable rubber garden tie that I found at home through the lowest vent hole (it's on a vented Ecrin Roc), which did the trick in the side-centre, but it's the cable-protectors that ensure the stand-off at front and back. It's not really an issue for most trips - we're talking body-sized rifts and crawls here, which I try and avoid where possible, but digging sometimes takes me into that. IP: 81.174.241.13
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