What is Best to Glue Coil Housing Together

[Davor]

Guess whoever bought the book and knows what's inside, myself included, will not discuss its virtues before the authors do. Sharing an educational portion of any printed material is considered fair use, so this may be an opportunity to fairly share such a portion with the novice.

[Tim]

Thank you all in advance for your positive input. I will buy the book. I fixed the rough edges and painted and cloth taped the cover on. Aesthetics aside, on my IB setup, I can get 8 inches on an air test on an Aussie 5c piece, and 12 on a 50c. That's upside-down(air-test), under a fluoro light, with the fridge going. And no it wasn't the cable signal or my hand/arm. That was the reason for the shield, and my extensive research and testing.About 3 inches on 2.4 grams of gold dust/clumps.
That is only a sub-carrier (?) signal, but the human ear can easily discern it. About the same signal as the Goldmaster on .2g of gold inside a 4" conglomerate I picked up near Wedderburn.
The way I see it, a ML detector would be no good to me anyway. The time spent discerning the multitude of available signals could be done real-time by a trained ear, with the only discrimination being the intuitive understanding of the familiarised and familiar human mind.

It reminds me of the dumbing down of society, by GPS and other technology. Mind you, I now take mine everywhere, turned on when prospecting. My Dad cannot even find the War Memorial without it.
When you become a slave to technology, the reason for the battle is lost in the politics(******* politics, again!).
When I drive in Adelaide, I use Mt. Lofty as my reference. That's what bushies do.

[Qiaozhi]

Guess whoever bought the book and knows what's inside, myself included, will not discuss its virtues before the authors do. Sharing an educational portion of any printed material is considered fair use, so this may be an opportunity to fairly share such a portion with the novice.

Edition 2 of ITMD is available directly from Amazon.com, Amazon.co.uk, and Amazon Europe, and now has the "Look Inside" feature.

I won't publish the complete section on making a homemade coil, but here's a image that basically shows what's needed.

Parts Required:
1x coil cover (available cheaply on eBay)
1x plastic bolt, washer and nut
1x cable entry sleeve
2x rubber washers
4x coil cover spacers (plastic shelf supports or similar)
2x coil loops (cut from MDF)
1x mounting plate (cut from MDF)
1x base plate (cut from plywood)
... and lots of glue.

[Qiaozhi]

Thank you all in advance for your positive input. I will buy the book.

Apparently, Amazon in Australia only sells digital products (ebooks and audio books). There is no Amazon warehouse facility in Australia, which is why printed books and other physical products are not available there.

However, you can order the book from one of the other Amazon sites, but I don't know which one will provide the cheapest alternative. This would be interesting to know.

[Tim]

Thanks Q. Here's my ugly but sensitive coil. I'll strive for neatness next time. But this thing hammers on an air test.

[Qiaozhi]

Thanks Q. Here's my ugly but sensitive coil. I'll strive for neatness next time. But this thing hammers on an air test.

Tim - what detector do you have connected to this coil?

[Tim]

Ohhh... it's a secret...I now know that your website is to supply Minelab with new ideas, Mr. SLIMEY.

[Tim]

The conniving plethora of PMs is enough for me to be absolutely certain that this is more than any singular self-interest, and any advantage my intelligence helps will NOT be that for HUMANMITARIAN PROFIT.
Shame on you profiteering bastrds.
Vultures, steering the other vultures astray.
If you cannot get double your voltage, your "wand" is weak. MR.
If you both use conniving salesman smooth-talking, give little besides which you barter, and ultimately sign on to a corporate...YOUR OPINION IS NULL and your own website actually, inadvertantly, provides more information than you are currently willing to divulge, I suppose due to your changed[financial] circumstances.
I would dearly love to share my circuits, but due to past experience, I feel that we need to remove politics and Penal-Capitalism before I can unleash the new Goldrush.

[Tim]

I set it up on a Matchless. By my ignorant opinion any DD coil set to this parameter can work on a dd PI. Bit I am si=ure you will shoot me down, hey. We can't have ANYONE understanding that you do not need a CRO or mathematics to make a bloody good detector. A big call, you two, but you will shoot down my bush mechanics/electronics. I'm sure.
330uH, by what means?
I've already had it with whiny, *****ing-no-you-can't CRAP here......

[Tim]

Pulse induction is a slice sample of a very comprehensive signal, so why use it? Depth? Ha! How much energy do you want to spend for a dig? How deep? How much ground do you need to cover today? How many iron targets are in your area? Lots? Then steer away from PI and VLF. A BFO or IB is your best bet.
These capatilistic bastrds will convince you to buy their BS and pay top dollar.

[Tim]

All commercial PI's boast some iron discrimination. All are in fact dumbing-down settings. A balanced PI will not detect fine gold or a specified target/setting any better than an IB, EXCEPT a small range beyond the basic IB frequency, But a properly balanced and tuned IB will detect as deeply as a factory tuned PI, on its' resonant and sympathetic frequencies.
You pay sixfold for a stupid machine to tell you what it thinks you want to hear.

[ivconic]

All commercial PI's boast some iron discrimination. All are in fact dumbing-down settings. A balanced PI will not detect fine gold or a specified target/setting any better than an IB, EXCEPT a small range beyond the basic IB frequency, But a properly balanced and tuned IB will detect as deeply as a factory tuned PI, on its' resonant and sympathetic frequencies.
You pay sixfold for a stupid machine to tell you what it thinks you want to hear.

[Tim]

Let's just say it was a ****ty little coil I cobbled together with no forethought. What would it matter what detector Q ?
The one I made it for it works on. Isn't that enough?.
The elitism of inductance measurement and access to an oscilloscope is your main disadvantage. It nulls your basic skill of human ingenuity. It disenfranchises people like me and hands the power to the analyzers and quantative taxers.,,

This whole exercise in sharing has resulted in my further disenfranchising, distancing and despair from society. I have cautiously offered, to be both swamped and stoned.
Never again.
Goodbye.

[Qiaozhi]

Let's just say it was a ****ty little coil I cobbled together with no forethought. What would it matter what detector Q ?
The one I made it for it works on. Isn't that enough?.
The elitism of inductance measurement and access to an oscilloscope is your main disadvantage. It nulls your basic skill of human ingenuity. It disenfranchises people like me and hands the power to the analyzers and quantative taxers.,,

This whole exercise in sharing has resulted in my further disenfranchising, distancing and despair from society. I have cautiously offered, to be both swamped and stoned.
Never again.
Goodbye.

[WM6]

Then steer away from PI and VLF. A BFO or IB is your best bet.

Tim, all so called "VLF" detectors are at the same time based on IB technology. It is not about two different things.

VLF tell us only in which frequency range those IB technology works.

So proper acronym should be VLF/IB to distinct from other VLF design like Off-Resonance or Q-Response (somewhat forgotten) technologies usually working in VLF field too.