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Author Topic:  DIY or make your own Metal Detector kits  (Read 137045 times)

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Offline 6666

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DIY or make your own Metal Detector kits
« on: June 09, 2011, 09:52 »
For those who may want to make their MD,

« Last Edit: November 14, 2016, 16:10 by 6666 »
  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Offline Smurf

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Re: DIY or make your own Metal Detector kits
« Reply #1 on: June 09, 2011, 09:54 »
I have enough trouble with RTA Funiture ::)
  • Detector(s) owned/used: Bounty Hunter IV (Sold), Garrett AT PRO (Current), Garrett PinPointer, Minelab ProFind
  • Oldest find: 1863 ITALIAN 50 CENTESIMI, 1884 BRITANNIA PENNY,1881 BRITISH THREEPENCE, 1911 AUSTRALIAN HALF PENNY
Decimal Tally     Pre Decimal Tally      Silver Tally
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Offline Aussie Detecting

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Re: DIY or make your own Metal Detector kits
« Reply #2 on: June 09, 2011, 12:41 »
Another way to expand the swear jar!!!
  • Detector(s) owned/used: Too many.
  • Oldest find: Roman coin
It's all about having fun.
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Offline Snoopy36

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Re: DIY or make your own Metal Detector kits
« Reply #3 on: June 09, 2011, 14:02 »
I feel so un-intelligent looking at that website  ;D

They might as well be water crackers or peanut brittle..... I'm sure it was all in English but I could not understand what those products are supposed to be!  :D  I think I'll stick to pre-fabricated ones  ;D
  • Detector(s) owned/used: Minelab XTerra 705, Sovereign GT
  • Oldest find: 1857 Gold Half Sovereign
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Offline Count Pierre

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Re: DIY or make your own Metal Detector kits
« Reply #4 on: June 09, 2011, 14:20 »

I'm with you, Snoop.

 Took one look at it & got out of there quick. I have enough trouble with the ready made ones. ::)
  • Detector(s) owned/used: Whites DFX + 5 Coils (retired)- Currently, ML Safari with RNB Battery,Whites MX5
  • Oldest find: 1817 George 3 Shilling
If I can't handle it, I'll go & have a few beers, or a red wine....or both.... & go from there!

Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #5 on: June 11, 2011, 00:11 »
Technology is not that bad  ;D

I have just ordered some kits
all PI's, be interesting to see the results
  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Offline sido

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Re: DIY or make your own Metal Detector kits
« Reply #6 on: June 12, 2011, 21:25 »
6666, bought the surf pi and chance pi off Andy, They are half built at the moment. The surf pi i am working on will be for a 1.5 foot long waterproof hand held device (similar appearance to  those cheap metal detector wands with round coil) except it being a genuine Whites Pi copy. Will be used for snorkling in 1 to 2 meters of water. Will be interesting to try out this summer in Melbourne beaches....by the way, they work good from what i read, if not better than the original if built correctly off course.

Sido
  • Detector(s) owned/used: Sd2000 modified, Goldsnoop X modified Md1023,
  • Oldest find: 1860 QVictoria Half Penny

Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #7 on: June 13, 2011, 21:31 »
Hi sido
that's great news I have also bought several kits, I was hanging out for the baracuda
Andy seems to think it may have a slight edge over the surf
but we will see, are you using any water proof pots on your surf ?
be interesting to compare notes and results
cheers
6666
  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Offline Mog

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Re: DIY or make your own Metal Detector kits
« Reply #8 on: June 13, 2011, 22:55 »
Great stuff guys, I have put a few Dick Smith kits together and got them to work, so I would be interested if you could maybe post a few pics of knocking up these MD's. And some test results maybe? Difficulty rating? Keep posting I am keen to see results and I am sure others are only they don't admit it  :)
  • Detector(s) owned/used: Xterra 305, E-trac, Garrett Pro-Pointer
  • Oldest find: 1861 Penny, Chinese coins


Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #9 on: June 13, 2011, 23:29 »
Here is the older surf pi board, its an easy project
the new boards are a bit better laid out
you have to add the battery and coil of course.





Hear are a few ccts to look over just for fun

http://phazitron.narod.ru/archiv/schmd.htm
« Last Edit: June 13, 2011, 23:47 by 6666 »
  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #10 on: June 13, 2011, 23:42 »
And the surf pi cct, its one of the more easy projects
and it works
TAKE NOTE there is a cap from pin 5 on the 555 to ground

  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #11 on: June 13, 2011, 23:55 »
This is a simplified version of surf pi

  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #12 on: June 24, 2011, 10:37 »
All you need is a few components and a coil and you have a MD  :)
  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Faze

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Re: DIY or make your own Metal Detector kits
« Reply #13 on: June 24, 2011, 17:35 »
I have been looking at doing a DIY MD myself , but I suffer from lack of skill ,
would be good if you guys could let us know how thing go with your units




Faze

Offline sido

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Re: DIY or make your own Metal Detector kits
« Reply #14 on: June 25, 2011, 14:07 »
Hi 6666, have not decided if i would use a waterproof pot, unless i can find one, maybe. My plan is to have unit fully sealed and pre-set if possible for most condition's in salt water. Will only remove sealed end cap to re-charge battery's.

The idea is to have 6 or 8 led's light up with corresponding detected signal strength, similar to a led VU meter for audio application's. The external led's would have to be water tight mounted on the tube housing. This mod is possible due to a VCO designed output amp.

The Barracuda i think has auto balance from memory, report's on performance do seam to be good. Do not have the circuit board at this stage.

The newer version Surf pi v1.2 black boards are much better quality, there the ones i have and working on.

What idea do you have as final build for your unit? Do you have waterproof pots? A supplier here in Melbourne would be great. I would use such a pot if i can find one.

Half the parts are populated at the moment.

Regard's Sido
  • Detector(s) owned/used: Sd2000 modified, Goldsnoop X modified Md1023,
  • Oldest find: 1860 QVictoria Half Penny

Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #15 on: June 25, 2011, 14:47 »
Hi sido
ok on your project, how are you going to switch the unit on ?
if water proof, reed relay and magnet ?

I dont have any water proof pots but they are on the net
you can supposedly make them
by greasing the shaft then make a silicon sheath
from silicon, just slap it on,
good idea on the leds, should work ok
one fellow on geotech just uses one
I still have to complete the Barra kit
just need a bit of spare time
the guys seem to be happy with the beach performance

Hi Faze
for a beginner I would build the surf PI
but it does still require some skills
  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Offline sido

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Re: DIY or make your own Metal Detector kits
« Reply #16 on: June 25, 2011, 15:03 »
Will just use a internal switch just inside the housing, unscrew cap, switch on or off.

Let us know how you go with the Barra.

Cheer's
  • Detector(s) owned/used: Sd2000 modified, Goldsnoop X modified Md1023,
  • Oldest find: 1860 QVictoria Half Penny

Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #17 on: June 25, 2011, 16:04 »
ok that switch will work to
have a look at this pot idea at bottom of page
washers and o rings by the look of it

http://www.geotech1.com/forums/showthread.php?t=16576&page=2

actually the more I think about it, it may be fairly easy to make it water proof
for snorkelling
with a plastic cap of marine grease
once you have set the delay, all you need is the threshold pot
might try some ideas
have you bought any plastic fittings yet ?
« Last Edit: June 25, 2011, 16:52 by 6666 »
  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #18 on: July 02, 2011, 23:31 »
Just started loading some parts
the +&- 5 volt regulator supply
and pulse generator and delay ccts
for Baracuda PI , getting drive pulses to switching fet
one of the guys who has made this project is claiming
30 cm for free air test on gold ring

http://youtu.be/EoWrGNiQfaM


This is another test

http://youtu.be/tgrjvk1fqfE

Beach test of homemade surf PI

http://youtu.be/hnKdAHYSSbs
« Last Edit: July 03, 2011, 00:08 by 6666 »
  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Offline Gecko

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Re: DIY or make your own Metal Detector kits
« Reply #19 on: July 15, 2011, 15:58 »
I dont see colour too well so this is definately out for me...
:(
  • Detector(s) owned/used: Own: ACE 350, Gold Snoop Pro, Garrett pinpointer..
  • Oldest find: 1966 20c ,1955 threepence, 1896 sixpence!
Rust is not a crime.

Offline Snoopy36

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Re: DIY or make your own Metal Detector kits
« Reply #20 on: July 15, 2011, 17:09 »
This is a simplified version of surf pi

Oh.... the simplified version was much easier to understand - not  ;D You guys are so smart.....
  • Detector(s) owned/used: Minelab XTerra 705, Sovereign GT
  • Oldest find: 1857 Gold Half Sovereign
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Offline Smurf

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Re: DIY or make your own Metal Detector kits
« Reply #21 on: July 15, 2011, 21:49 »
They lost me as soon as they said DIY :(
  • Detector(s) owned/used: Bounty Hunter IV (Sold), Garrett AT PRO (Current), Garrett PinPointer, Minelab ProFind
  • Oldest find: 1863 ITALIAN 50 CENTESIMI, 1884 BRITANNIA PENNY,1881 BRITISH THREEPENCE, 1911 AUSTRALIAN HALF PENNY
Decimal Tally     Pre Decimal Tally      Silver Tally
$344.41           3 Pd / 6s / 1d             72

Total Decs          Total Predecs
   636                       262

detectorsmurf on youtube
http://www.youtube.com/DetectorSmurf

Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #22 on: July 19, 2011, 00:47 »
Almost finished my surf PI 1.2  :)
  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

Offline sido

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Re: DIY or make your own Metal Detector kits
« Reply #23 on: July 21, 2011, 02:25 »
6666, almost finished the Chance Pi with lcd, will post pictures soon and give a report on performance. I will buy the remaining parts for the Surf pi and hopefully finish and test before weekend's out. I have to build the coils also.

Sido
  • Detector(s) owned/used: Sd2000 modified, Goldsnoop X modified Md1023,
  • Oldest find: 1860 QVictoria Half Penny

Offline 6666

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Re: DIY or make your own Metal Detector kits
« Reply #24 on: July 22, 2011, 12:09 »
Thats great sido
I have finished putting the components on the BARACUDA-Legend-1
and surf pi , now just got to get them working and tuned up.
  • Detector(s) owned/used: My first Whites 1975, various others
  • Oldest find: 1836 Three pence
Aint found a half penny or penny yet, Remember the best discriminator is your digging tool.

 

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