Friendly Metal Detecting Forums   Deteknix
List all sponsors

Go Back   Friendly Metal Detecting Forums > Detectors and Gear > Make It or Fix It Yourself

Reply
  
Thread Tools Display Modes
  #1  
Old 11-05-2013, 10:49 AM
Briman05's Avatar
Briman05 Briman05 is offline
Elite Member
 
Join Date: Apr 2011
Location: Jersey Shore
Posts: 4,355
Cool Harbor Freight Pinpointer Mod

I had a 25% off a item from harbor freight so I went down to Delaware this weekend and picked one up along with a soldering pen and some solder. I looked up some mods that I want to do mainly change the buzzer to a vibration motor. Now I just need to find a cell phone and a small enough screw driver to to open up the phone to get to the vibration motor.

__________________
MD:CTX3030 XTerra 705 2018:2.42/2017:(100.10)clad|1(3).925|2(7)wheat|0(0)buffs|0 (0)V's|0(0)silver|oldest coin:1889 Indian

Reply With Quote


  #2  
Old 11-05-2013, 06:38 PM
Briman05's Avatar
Briman05 Briman05 is offline
Elite Member
 
Join Date: Apr 2011
Location: Jersey Shore
Posts: 4,355
Default

Ok so I opened up the pinpointer and adjusted the sensitivity pot screw and in the air test I was getting about 1 1/4 to 1 1/2 on a silver dime. For some reason the smallest Phillips screwdriver doesn't fit the cell phone I am going to take apart

__________________
MD:CTX3030 XTerra 705 2018:2.42/2017:(100.10)clad|1(3).925|2(7)wheat|0(0)buffs|0 (0)V's|0(0)silver|oldest coin:1889 Indian

Reply With Quote


  #3  
Old 11-06-2013, 07:44 PM
kkt's Avatar
kkt kkt is offline
Junior Member
 
Join Date: Oct 2013
Location: northern Wyoming
Posts: 69
Default

you could use a hammer.
it could be a torx head. my cell phone was.
Reply With Quote


1 members found this post helpful.
  #4  
Old 11-06-2013, 09:47 PM
gliden07's Avatar
gliden07 gliden07 is offline
Senior Member
 
Join Date: Sep 2013
Location: Western MA
Posts: 328
Default

You can also buy a vibration motor at Radio Shack for about 4 bucks if ya can't get the phone apart?

__________________
Best Find to date - Late 1800's-Early 1900'S Silver Shoe Buckle, 1904 Indian Cent
AT Pro, Ace 350, Garrett Pro Pointer, Samson Mini T

Reply With Quote


  #5  
Old 11-07-2013, 12:22 AM
Briman05's Avatar
Briman05 Briman05 is offline
Elite Member
 
Join Date: Apr 2011
Location: Jersey Shore
Posts: 4,355
Default

The one from radio shack is out of stock. I did find one but it is rather larger and I'm not sure how fast it spins. I know it is a Phillips because it is the cross of a phillips

__________________
MD:CTX3030 XTerra 705 2018:2.42/2017:(100.10)clad|1(3).925|2(7)wheat|0(0)buffs|0 (0)V's|0(0)silver|oldest coin:1889 Indian

Reply With Quote


  #6  
Old 11-11-2013, 08:36 PM
Silversmith45's Avatar
Silversmith45 Silversmith45 is offline
Elite Member
 
Join Date: May 2009
Location: Wichita, Kansas
Posts: 9,981
Default

I used the motor from a vibrating toothbrush. I undid the buzzer and wired it to those leads. Hot glued it in and it works fine.

__________________
CZ-6 Original Silver Sabre Tek Delta Oldest coins 1855 French Dix Centimes 1871 IH 1877cc Seated Liberty Dime 1888 V Nickel

Reply With Quote


  #7  
Old 11-12-2013, 10:07 AM
Briman05's Avatar
Briman05 Briman05 is offline
Elite Member
 
Join Date: Apr 2011
Location: Jersey Shore
Posts: 4,355
Default

Originally Posted by Silversmith45 View post
I used the motor from a vibrating toothbrush. I undid the buzzer and wired it to those leads. Hot glued it in and it works fine.
That is how I plan on wiring my motor in.

__________________
MD:CTX3030 XTerra 705 2018:2.42/2017:(100.10)clad|1(3).925|2(7)wheat|0(0)buffs|0 (0)V's|0(0)silver|oldest coin:1889 Indian

Reply With Quote


  #8  
Old 11-19-2013, 02:57 PM
louie41 louie41 is offline
Senior Member
 
Join Date: Jun 2013
Location: Maryland Queen Annes County
Posts: 302
Default

fyi, you may have to readjust the blue pot again in the heat of summer otherwise it will sound off no matter where you turn the exterior sensitivity knob. I did mine. kinda like summer and winter settings. haven't added any other mods though, just couple things to keep dirt out.

__________________
White's MX Sport, Beach Hunter ID, 4900D/Pro, Ace 350, Whites TRX PP Best Finds: Found/returned: 3 rings, 2 silver pendents, 1 gold bracelet.

Reply With Quote


  #9  
Old 11-19-2013, 02:59 PM
GroundSweeper's Avatar
GroundSweeper GroundSweeper is offline
Supporter
 
Join Date: Apr 2013
Location: Placer Co., CA
Posts: 13,746
Default

Originally Posted by louie41 View post
fyi, you may have to readjust the blue pot again in the heat of summer otherwise it will sound off no matter where you turn the exterior sensitivity knob. I did mine. kinda like summer and winter settings. haven't added any other mods though, just couple things to keep dirt out.
Add the thermistor to solve this one! Pretty vital imo.

__________________
2 Compadres : 2018 (Total (4/4/13 to date)) - Clad: $96.42 ($737.92), Silver coins: 1 (6), Wheats: 12 (41), Gold: 4 (22), .925 4 (53), Rings: 24 (164), Oldest Coin: 1921 Ten Centavos Filipinas; Chinese cash coin

Reply With Quote


  #10  
Old 11-19-2013, 03:18 PM
Briman05's Avatar
Briman05 Briman05 is offline
Elite Member
 
Join Date: Apr 2011
Location: Jersey Shore
Posts: 4,355
Default

Were would you attach the thermistor

__________________
MD:CTX3030 XTerra 705 2018:2.42/2017:(100.10)clad|1(3).925|2(7)wheat|0(0)buffs|0 (0)V's|0(0)silver|oldest coin:1889 Indian

Reply With Quote


  #11  
Old 11-19-2013, 04:27 PM
airscapes's Avatar
airscapes airscapes is offline
Elite Member
 
Join Date: Nov 2013
Location: Philadephia PA
Posts: 900
Default

If you just replace the switch with another momentary switch there is no over heating issue. This was not built to be on all the time. The blue pot is only a trimmer to allow the main outside adjustment to be more or less centered. It does not increase range at all. This is obvious if you look at the schematic. The problem with heat is the fact that people are trying to use this at 100% duty cycle with a non Momentary switch.
http://www.findmall.com/file.php?22,file=218436

By altering the blue trimmer pot all you do is change where external pot stops the beeeeep

__________________
Doug - Whites DFX x 2, 950,U13, 6x10, 6"Excel and 4x6 coils; CoinMaster GT, 4x6 & NEL Hunter, TRX Pin Pointer, CZE-T200 FM Transmitter, Sangean DT-400W and ER6i in-ears.

Reply With Quote


  #12  
Old 11-19-2013, 05:00 PM
GroundSweeper's Avatar
GroundSweeper GroundSweeper is offline
Supporter
 
Join Date: Apr 2013
Location: Placer Co., CA
Posts: 13,746
Default

Originally Posted by Briman05 View post
Were would you attach the thermistor
It's on this forum http://metaldetectingforum.com/showthread.php?t=21525

Specifically : http://metaldetectingforum.com/showp...1&postcount=89

But it is all a good read.

I do not think the temp issue has anything to with the on/off switch...

__________________
2 Compadres : 2018 (Total (4/4/13 to date)) - Clad: $96.42 ($737.92), Silver coins: 1 (6), Wheats: 12 (41), Gold: 4 (22), .925 4 (53), Rings: 24 (164), Oldest Coin: 1921 Ten Centavos Filipinas; Chinese cash coin

Reply With Quote


  #13  
Old 11-19-2013, 06:49 PM
Ice Scratcher's Avatar
Ice Scratcher Ice Scratcher is online now
Elite Member
 
Join Date: Oct 2012
Posts: 17,342
Default

Originally Posted by airscapes View post
If you just replace the switch with another momentary switch there is no over heating issue.
Incorrect...

Originally Posted by GroundSweeper View post

I do not think the temp issue has anything to with the on/off switch...
Correct...

<*)))>{
Reply With Quote


  #14  
Old 11-21-2013, 02:29 PM
Briman05's Avatar
Briman05 Briman05 is offline
Elite Member
 
Join Date: Apr 2011
Location: Jersey Shore
Posts: 4,355
Default

Well I checked the size of the motor I found and it is to big so I have to go back to the drawing board and get a new motor I'm not sure how much room is between the top of the pointer and the board. Has anyone used one of those flat coin looking motors. I don't have a screw driver that is small enough to get into a old phone. And last time I looked radio shack was out of stock of there motor

__________________
MD:CTX3030 XTerra 705 2018:2.42/2017:(100.10)clad|1(3).925|2(7)wheat|0(0)buffs|0 (0)V's|0(0)silver|oldest coin:1889 Indian

Reply With Quote


  #15  
Old 11-21-2013, 04:13 PM
HarveyH48 HarveyH48 is offline
Elite Member
 
Join Date: May 2011
Posts: 3,711
Default

If I can't get something open, I plan to scrap for parts, I get destructive. Case isn't all the useful. The two flat coin-style motors I have, didn't vibrate as strong as the other styles I had. I also tested how much current the used, wanted to stay under 100 mA, which wasn't a problem (28-53 mA). Just went with the strongest vibration. Should be plenty of room in the case. Never took apart a toothbrush, so no idea how big they are.
Reply With Quote


  #16  
Old 11-22-2013, 09:08 PM
Briman05's Avatar
Briman05 Briman05 is offline
Elite Member
 
Join Date: Apr 2011
Location: Jersey Shore
Posts: 4,355
Default

Originally Posted by HarveyH48 View post
If I can't get something open, I plan to scrap for parts, I get destructive. Case isn't all the useful. The two flat coin-style motors I have, didn't vibrate as strong as the other styles I had. I also tested how much current the used, wanted to stay under 100 mA, which wasn't a problem (28-53 mA). Just went with the strongest vibration. Should be plenty of room in the case. Never took apart a toothbrush, so no idea how big they are.
Where did you get your motor?

__________________
MD:CTX3030 XTerra 705 2018:2.42/2017:(100.10)clad|1(3).925|2(7)wheat|0(0)buffs|0 (0)V's|0(0)silver|oldest coin:1889 Indian

Reply With Quote


  #17  
Old 11-23-2013, 10:00 PM
Briman05's Avatar
Briman05 Briman05 is offline
Elite Member
 
Join Date: Apr 2011
Location: Jersey Shore
Posts: 4,355
Default

Just ripped apart a old phone but I didn't see any vibration motor oh well off to amazon

__________________
MD:CTX3030 XTerra 705 2018:2.42/2017:(100.10)clad|1(3).925|2(7)wheat|0(0)buffs|0 (0)V's|0(0)silver|oldest coin:1889 Indian

Reply With Quote


  #18  
Old 11-30-2013, 04:55 PM
PullTabs<3Me's Avatar
PullTabs<3Me PullTabs<3Me is offline
New Member
 
Join Date: Nov 2013
Location: Central Florida
Posts: 11
Default

I just did this mod the other day. Didn't replace the switch yet..but I did put a vibration motor in it from radio shack, and soldered it to the buzzer wires.
Reply With Quote


  #19  
Old 12-07-2013, 01:05 PM
Steve77's Avatar
Steve77 Steve77 is offline
Elite Member
 
Join Date: Dec 2012
Location: Lakeview, Michigan
Posts: 1,387
Default

Originally Posted by GroundSweeper View post
Add the thermistor to solve this one! Pretty vital imo.
Thermistor does give a broader temp range, but at temps below 40 degrees mine still has issues. Anything from 40-100 degrees is reasonably stable with mine. temps below 20 degrees it is useless.

__________________
Nox 600, AT Pro, Whites TRX, Modified Fiskars, Stealth 720i
Jewelry:Gold(2) Silver(5) Coins:Silvers(17) Buffalo(5) V Nicklels(3) IH(3)
Tokens(6) Returned 1 Gold class ring

Reply With Quote


  #20  
Old 12-10-2013, 08:01 PM
Briman05's Avatar
Briman05 Briman05 is offline
Elite Member
 
Join Date: Apr 2011
Location: Jersey Shore
Posts: 4,355
Default

Ok I soldered the wires together and tested it out where do you guys glue the motor. I noticed one person attached it next to the probe but there isn't any room in mine for that

__________________
MD:CTX3030 XTerra 705 2018:2.42/2017:(100.10)clad|1(3).925|2(7)wheat|0(0)buffs|0 (0)V's|0(0)silver|oldest coin:1889 Indian

Reply With Quote


Reply


Tags
diy, harbor freight, mod

Thread Tools
Display Modes

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Harbor Freight Pinpointer Ryanhawkerxp Metal Detector Accessories 32 02-03-2015 03:13 PM
Improvment on the Harbor Freight Pinpointer MetalmanMatt Make It or Fix It Yourself 18 07-09-2011 09:28 PM
Harbor Freight Pinpointer.! edgarlild Metal Detector Accessories 23 05-09-2011 12:12 PM
Pinpointer from Harbor Freight awsomeears Metal Detector Accessories 8 08-20-2009 11:35 PM


All times are GMT -4. The time now is 10:33 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2018, vBulletin Solutions, Inc.