Paydirt.co.nz

New Zealand Gold Prospecting & Metal Detecting Forums Archive

 

The forum has moved to community.paydirt.co.nz, see you there!

This forum is now an archive to preserve the knowledge and finds posted here.

F4 AA battery mod improvement
Mudwiggle  
Posted : Sunday, 13 September 2015 2:43:04 PM(UTC)
Mudwiggle

Rank: Gold Ingot

Groups: Registered, Moderators
Joined: 22/10/2013(UTC)
Posts: 742
New Zealand

Thanks: 182 times
Was thanked: 683 time(s) in 317 post(s)
Revamped the F4 AA arrangement to improve balance.
Mounted project box under cuff, used good old builders bog to shape up a transition block to avoid undue stress on box.


Cable runs inside shaft and out through a new hole in front of head unit, important to gland this to avoid chaffing over time.
Used cable off old computer keyboard which comes with two pairs, ideal for the twin '9v' feeds and has a heavy duty exterior sheath.

Point of balance has now moved back to the head unit, whereas with the box mounted under the headunit it was well forward and made for soggy arms at the end of a long day.


You could improve balance even more by moving the box further back, but I wanted to keep it flush with the cuff.
Back to top
Iggyrulz  
Posted : Sunday, 13 September 2015 5:03:09 PM(UTC)
Iggyrulz

Rank: Gold Ingot

Medals: Donation: Made a donation helping cover the running costs of the site - thank you :)

Groups: Registered
Joined: 21/12/2013(UTC)
Posts: 438
New Zealand
Location: Dunedin

Thanks: 501 times
Was thanked: 327 time(s) in 196 post(s)
Nice job! Soggy arms lol yeah I had a small weight on my coil for water hunting to help keep the front end down. Good in the water but anywhere else and it becomes real hard work fast.
Back to top