DIY Polespear

[Salmo]

I'm new to spearfishing, so new I still haven't done any but I fancy myself a bit of a handyman and I'm waiting for the water here to warm up, so i decided to build a polespear and save a little money for the rest of my gear.

I went with 14mm OD 8mm ID alu tube for the body, with 10mm alu round bar for the joints and a little 10mm OD 6mm (bought thinking it would have 1.5mm walls rather than 2) ID tube to get a snug fit around the 7mm stainless spear point with a little sanding.

90 inches overall and weighs 1lb 8oz

 

[diddavetellyou]

that looks like good workmanship but you might get problems with corrosion having steel and aluminium touching. with maintenance it might be ok.

 

[Salmo]

cheers, yeah i wondered about bimetallic corrosion, was thinking about just using a bit of PTFE tape on the stainless threads or maybe some blue loctite, and some electrical tape where it touches at the front.

 

[hteas]

My guess is that rinsing it off with freshwater after each diving day will control it for quite a while. The corrosion will get to it eventually, but all gear wears out after a while. Let us know how swell it works.

 

[poildeq]

Have a look. at the linghunt one I have not seen better

 

[AKA the mermaid]

I've been toying with the idea of making one myself, but would it be better to just buy one since I'm just starting out?