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Shafts need a redesign

JohnnyI

New member
If you have to change coils quite often it can be a real problem gettig some of the coiled wire through the shaft. Often the coiled wire of extra coils is larger in diameter; or in cases where it's the right diameter it tends to become wider over time , necessitating threading the whole thing through both upper and lower shafts with a piece of twine. Often too, once the whole shebang is through and secured on the detector, any mistake in extending the lower shaft too far and then trying to slide it back in place become nearly impossible. You are stuck buying extra upper and lower shafts for all your coils with wide coiled wire if you want to spend time detecting rather than threading needles. A simpler shaft design of the coil wire going around a shaft rather than through it would negate these problems, but then the tightly wound coils we have would become obsolete. Maybe that's why nothing is being done to remedy this?
 
I've thought about the problem of being able to easily change coils. I'd have to say that beyond the shadow of a doubt that it would be hard to beat what the standard stock coil will do. Several people on this forum are testing other coils with mixed results only to go back over the dirt with the stock coil and find what they have missed. I just don't think it can get any better, I've even thought of getting another stock coil for backup just in case something were to happen to mine. I just might ought to do it quick though while the testing is still going on with different coils before everyone figures out the stock coil is a magical:thumbup:to:minelab:
 
Shambler is right. Probe will fix all the problems and honestly i think it's a must have for any detector
 
Cote your coil wire and connector with a bit of petroleum jelly. They will slide through the lower shaft like an charm and will prevent corrosion between the coil connector and unit.
 
One thing that I found worked for me was Armor All, I put some on a cloth, and gave the coiled cable a coat.
Then I shoved the cloth with Armor All up the bore of the shaft, makes things much more slippery !!! :detecting:
 
I just spin the shaft as the curly end gets tighter it also gets smaller [counter clockwise .]
Easy Beans HH Mike
 
n/t
 
I just buy a lower shaft with every coil for the ET of Explorer... problem solved. I use a pocket uniprobe. I had a SR inline probe on my Sovereign but found that the UP did a better job. Besides I wouldn't give up the ability to quickly shorten or lengthen the shaft while I am hunting for anything. That helps me stay comfortable, especially while hunting on a grade. The lower shaft isn't that expensive and makes coil change a breeze.

I have noticed that the excellerator cord is a little long for the ET. Then again, I hardly EVER use anything other than the 11" Pro coil, it works well in heavy trash.

J
 
gmanlight said:
I just spin the shaft as the curly end gets tighter it also gets smaller [counter clockwise .]
Easy Beans HH Mike


Was going to say the same thing, but gmanlight beat me to it.

Have changed coils many times and not once did I have to use anything for assistance.
 
The X-1 does not stop you from changing lengths of your lower rod. The coiled cable on the coil works the same on the outside as it does on the inside.

Ralph (Sun Ray)
 
"Have changed coils many times and not once did I have to use anything for assistance."


Let me be clear sharpshooter, the stock minelab coil is not a problem, and even when its winding becomes loose it can be easily twisted in. The problems come with the new 12x15 and 5x7 (particularly the 12x15 who's winding even when twisted as tight as it will go exceeds the inner diameter of the shafts. Because these cannot be twisted in, the only physical way they can be inserted is unwound to a degree, then hopefully fed inch by inch with hope they don't bind. Perhaps my complaint is more with these after market coil manufactureres than with minelab.

As far as lubricating the inner shafts go, this sounds fine if you are doing schoolyards, lawns, or other fairly tamer sites. I often have to pack in to sites however, some remote, and I'm afraid any advantage to lubricating coil wires would be lost through the accumulation of dust and dirt that would cling to lubricant in no time. Again, the stock minelab coil is no problem, but because of the particular conditions where I search it is rarely used anymore.

To the poster who said get more shafts, I already suggested this in my original post, but it is something to be avoided if one can help it. With fittings and shipping they are relatively expensive. I've already bought one extra, and I may finally resort to buying another for the 12x15.

As far as "getting a probe" is concerned, all I can say to the poster is "???" How will attaching a probe replace a 12x15, a 6x7, or a 6" coil ?? I used to have the sun ray on my old xs, but that machine had a groove on the back for the coil wire. Does the new setup preclude having to feed the coil wire through the shafts now? Thanks
 
JohnnyI said:
As far as "getting a probe" is concerned, all I can say to the poster is "???" How will attaching a probe replace a 12x15, a 6x7, or a 6" coil ?? I used to have the sun ray on my old xs, but that machine had a groove on the back for the coil wire. Does the new setup preclude having to feed the coil wire through the shafts now? Thanks

Johnny - having a Sunray does mean that you do not "thread" the coil wire through the lower shaft but simply wrap it around and connect it to the probes control box on the outside of the upper shaft.

I have 3 coils counting the stock one that I use depending on the situation. For example, I can't imagine not using the 8x6 SEF for the VERY high trash parks I visit. It really does make a difference over the stock coil as far as separation goes. Anyway, when I want to change coils I unscrew the coil from the Sunray box and then unscrew the plastic bolt holding the coil on the lower shaft. I do the opposite to put on the new coil. To me this is about as easy as any other detector yes? Now if I didn't have the Sunray (I would hate that) I admit it would be a bit more work to "thread" the coil but it doesn't take that long to do it. I mean I do this detecting thing to relax! So why not kick back under a tree and have a drink while changing coils! The alternative is to buy some extra shafts but at what ?$40? a pop, seems a bit unnecessary IMO.
 
JohnnyI said:
Let me be clear sharpshooter, the stock minelab coil is not a problem, and even when its winding becomes loose it can be easily twisted in. The problems come with the new 12x15 and 5x7 (particularly the 12x15 who's winding even when twisted as tight as it will go exceeds the inner diameter of the shafts. Because these cannot be twisted in, the only physical way they can be inserted is unwound to a degree, then hopefully fed inch by inch with hope they don't bind. Perhaps my complaint is more with these after market coil manufactureres than with minelab.


Okay, now I smell what yer steppin' in.

I change frequently between the stock coil and a 6" excellerator coil.
With those 2 particular coils, I don't have a problem.
Can't speak for any other coils.
 
"Johnny - having a Sunray does mean that you do not "thread" the coil wire through the lower shaft but simply wrap it around and connect it to the probes control box on the outside of the upper shaft."

Mossing, the sunray design has evidently changed in the years since I bought the sunray when it first came out years ago. Winding the coil wire would be, and sounds like it alrready is, an improvement, and for those of us who don't like using the sunray, an idea might be to see minelab manufacture an simple extention wire which could be mounted from the control to the bottom of the upper shaft. That would take care of everything, particularly for those of us who often have to switch coils back and forth very often while working out skimmed strata and other specific site conditions that require constant changing of coils. Although I haven't tried wrapping the wire around both upper and lower shafts to the control, I imagine the existing coil wire would be too short to do this without undue strain, and a permanent extention would certainly do the trick. .
 
johnnyshortcable said:
As far as "getting a probe" is concerned, all I can say to the poster is "???"

I'm not sure what a "???" is but it sounds bad... :shrug:

johnnynoprobe said:
How will attaching a probe replace a 12x15, a 6x7, or a 6" coil

you just cover less ground with that 1" probe, but its awesome on 3" targets in trash. :rofl: (seriously though... why would I suggest you replace a 12X15 with a sunray probe...?)
 
It would work well for a unit that has a SunRay Probe. I have used it with out a probe but has about 6-8" more cord than I need, so after installing it I unbolt the coil and wrap the cord a cople times around the end of the lower rod and works fine. If anyone is interested in it I would sell it. Say $100.00???
Has anybody ever seen one like this?
 
Cool, I did not know that. I am going to send you my S-1 probe to check. I don't think it is getting the depth it should. David tells me that it should be doing better. If it gets better depth i'll consider an X-1 probe too. I'll be in touch.

Thanks,

Julien
 
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