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Offline satdaveTopic starter
Barracuda-DFX-QUATTRO-1V- VLR 990D-TGSL X2-1265X-IGSL-Mini pulse 3
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« on: September 05, 2012, 02:55:29 am »
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Hi
For those interested heres some pictures of my Minipulse3 project together with coils, with some of my modifications as promised.
When time permits over the next few weeks will add internal pictures and advise on construction.

Regards

Dave

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« Reply #1 on: September 05, 2012, 02:58:50 am »
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Looking good, mate! Keep on keeping on!

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
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Offline satdaveTopic starter
Barracuda-DFX-QUATTRO-1V- VLR 990D-TGSL X2-1265X-IGSL-Mini pulse 3
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« Reply #2 on: September 05, 2012, 06:00:52 am »
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Heres circuits plus part list.
  When building this project and like all metal detector projects Its very important to use parts as specfied and check each capacitor/resistor for value specification before installing on PCB if you want success with optimum performance .

The minium test equipment required for this project is accurate LCR meter and a scope.
On this project ive also added varibal pot on front panel for damping adjustment so multitude of coils can be used out on the field, will post update pictures plus diagram later when time permits.
Also note ive installed a RS232 ISPC port on front panel for easy programming of ATMega8 if and when required for experimental purposes in the fucture.

Regards

Dave

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« Reply #3 on: September 05, 2012, 04:36:50 pm »
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 Great Looks like your project is coming together nicely , hope it works as well as you hope . cheers Mick

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Offline satdaveTopic starter
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« Reply #4 on: September 05, 2012, 04:53:51 pm »
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Hi Mick
Thanks for your comment
Its already finshed about 3 months ago, works a dream.
I only post now because  had promised ages ago to a few interested people on here that I would, its just what with work and everything been so busy not had the time till now.

Regards

Dave

Posted on: September 05, 2012, 04:49:34 PM
Thanks golddigger
over the weekend will take it apart and take some pics of the internals,  pictures speak a thousand words

Regards

Dave

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« Reply #5 on: September 07, 2012, 06:53:35 pm »
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Good work Dave

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Offline satdaveTopic starter
Barracuda-DFX-QUATTRO-1V- VLR 990D-TGSL X2-1265X-IGSL-Mini pulse 3
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« Reply #6 on: September 24, 2012, 02:32:01 am »
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Thanks 6666
Spent more time on this project than any of the others.
Had it with me last week in cornwall uk, brougnt back mainly military finds of 2nd world war.
The 6" coil worked like a dream pulling 1940 303 shells and another bottom of miliner 36mm at well over 12" with solid readings and display running well over halfway from wet sand around rocks far better than air tests, so goes to prove what ive said all along, air tests mean nothing.
I was only able to do 2hrs stints each time because of tides only access was going down cliff face with rope, that once years ago had steps for public access, had to leave hundreds of fishing wights etc behind due to problems getting back up the cliff surface, next time shall drop two ropes one a big bucket on the end.
There were deeper larger objects there but its was all time factor, but next time will be more organised.
The dual coil was crap like the first one i built, so back to the drawing board on that one, its not scrap because they both seem to work quite well on there own.
Next job is splitting the circuit some how to use TX/RX coil rather than dual field in series, Any suggestons??, simple to do on the surf pi, but thats a different breed machine.
When i find the time to do that will take lots of internal pictures as promised for any of you that fancys the challenge of making this brilliant peace of kit.
Warm
Regards
Dave  

Posted on: September 24, 2012, 01:54:06 AM
I was thinking... very dangrious lol hope not Waveing
I may consider if any of you fancy going for this project and either not able or dont desire to make the PCB boards or maybe put off by the programming of the ATMega8 chip, perhaps at a price working out a kit for you.
If theres enough interest shown will work out a price but only after ive made a second assembly to prove no shadow of doubt its buildable without all the hassel that I went through with this first one.
Theres no reason why I couldnt post it with working circuit diagram and building procedure from start to finish as like im posting on here.
Would have to check with moderators on here because dont want to burn toes and also if theres any copy rights because the original designers put alot of work into this project and they deserve to be consulted if there still around.
Anyway thats fucture thoughts if theres enough interest, because I like helping people here and in Geotech as ive learned so much from these two forums in the past its giving something back.
Regards
Dave 

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« Reply #7 on: October 19, 2012, 08:26:43 am »
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hi are there hex please send

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Offline satdaveTopic starter
Barracuda-DFX-QUATTRO-1V- VLR 990D-TGSL X2-1265X-IGSL-Mini pulse 3
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« Reply #8 on: October 23, 2012, 10:50:38 am »
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Ive tryed, it wont let me upload the hex file on here, any tips how to get around it please?

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Offline GoldDigger1950
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« Reply #9 on: October 23, 2012, 12:53:21 pm »
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Quote:Posted by satdave
Ive tryed, it wont let me upload the hex file on here, any tips how to get around it please?

Zip it first. Zip files are allowed.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
Let's Talk Treasure!

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