Teak Speargun Build Process and Analysis

As part of my B.Tech/B.Ed, I had to build an HSC Industrial Timber Major project within a 6-week timeframe. Part of the submission was to make an 8-minute video detailing the build process and incorporating a critical analysis within the commentary. #southerncrossuniversity August 2022
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Music used with permission under license:
Song: Review and Unboxing
Artist: Netuno Music
Bandcamp transaction ID: 3035427077

[@bobmartin8684]

Thank you for including your mishap with the router and your fix. I have done that more than once and I will remember that when I do my build. Awesome video with lots of great information.

[@arcdesigns7066]

Thanks Bob, it was very tempting to leave it out and hide it so I could pretend I'm perfect 😂 but these things DO happen and I've certainly learned a lot from others sharing their mistakes, glad it was a good reminder for you. Cheers

[@bobmartin8684]

@@arcdesigns7066 it’s not about making mistakes, it’s about being able to fix them right? Hahaha thanks again.

[@yifuwang2269]

Cool gun, love the idea of using brass.

[@HorvathAndreas]

Excellent work and very nicely documented in this video!

[@arcdesigns7066]

Thanks

[@mattc2549]

Sick build! 🍻

[@arcdesigns7066]

cheers

[@JimmyGreen-wx6gt]

Turned out great 👍. Love the copper and epoxy inlay.

[@arcdesigns7066]

Thanks, yeh it ended up getting a great alternative to abalone shell

[@vovkaswed]

Супер точность! Молодец!

[@arcdesigns7066]

thank you

[@achrafelkassih2930]

great job

[@arcdesigns7066]

Cheers

[@delstep2255]

Wonderful video

[@yongwookim8787]

I enjoyed watching the good video.

[@floresadventureandspearfis693]

Bagus sekali speargunnya... Salam kenal dari Indonesia

[@arcdesigns7066]

Thank you

[@rosellerm.delacerna4577]

good job sir.. i do make my own speargun too..

[@losthorizon6071]

what did you use to laminate the timber and how's it held up over time? cheers

[@arcdesigns7066]

I used a clear marine-grade epoxy, the kind of stuff boat builders use. No problems, no movements, still perfect joints with no signs of delamination. cheers

[@DonaldLo07]

Nice

[@nickkoulouriotis8205]

Awesome video brother. But? How do you balance the gun in the water?

[@andrewcoates5438]

The weight of the spear shaft will hold the gun neutrally boyant in the water, if it still floats too much you can add extra weight to the barrel by drilling holes and filling them with lead, or you can increase the diameter of your spear shaft which will add more weight. If it sinks, you may need to add buoyancy tabs/wings to the fin stock. This one ended up being pretty spot on, it floated slightly so I've put a bigger spear shaft in and now it's neutral.

[@garrywagener4358]

Does tilt forward slowly in the water or sits horizontal? I was told it needs to tilt slowly forward for trigger pull

[@arcdesigns7066]

​@@garrywagener4358 Not sure what you mean by tilt forward though, sorry, but ideally you want your gun to sit fairly flat (neutrally buoyant) so when you extend your arm under water you don't have to fight to hold it in place. Cheers

[@jimrat618]

Hello, I am building my own speargun and need help on how deep I would go with the router can you please tell me the depth of which the shaft seats at the trigger

[@arcdesigns7066]

Hi there, it depends on the diameter of the spear shaft you intend to use, and what trigger mech the shaft will lock into, but from memory I think I set the router cutter to half the depth of the spear shaft.

[@thekingpotato8214]

Hi Mate could you please tell me where you found the teak for sale in Australia. Great build looks good. Thanks in advance for your advice

[@andrewcoates5438]

Got it from a ship builder

[@Enciey]

Nice work!! is it possible to have the plans please

[@andrewcoates5438]

Thanks, the plans were specific to the hardware I chose to use, best off deciding what hardware (trigger mech, shaft, etc) then design your gun accordingly.

[@FucileSpearfishing]

Hi, I was using the same trigger mech and was needing help to put the safety switch as it wouldn’t stop me pulling the trigger. If you could show me a guide I would be very grateful.

[@arcdesigns7066]

Hi there, I don't use a safety switch, so can't help you there. Personally I find it much safer to treat every loaded gun as "unsafe". Not only does this mean I won't line up a fish and miss the shot because the safety is still on, but I will hopefully behave much safer knowing it's ready to fire and not being lazy relying on a safety switch that may or may not be working correctly. Meanwhile, the manufacturer of the trigger mech should have guides available on their websites.

[@pescadelinterior]

El gatillo lo hiciste o lo compraste?

[@dannycarr8181]

What were the dimensions of the stalk prior to shaping it? Or does it even matter as long as the trigger mech fits?

[@andrewcoates5438]

Totally depends on your design, you can have various length guns, however, you want enough thickness to ensure your gun stock cannot bend or twist under load

[@jakecolam33]

What trigger mechanism?

[@arcdesigns7066]

Koah Euro mech

[@lmnop20sharks]

Hi, if I make a wooden speargun wit 3 horizontal laminations would that be OK?

[@andrewcoates5438]

As long as the overall thickness suits your requirements, yes. However, 4 is better, but I wouldn’t use less than 3

[@lmnop20sharks]

@@andrewcoates5438 it 3 mahogany laminations at half inch. My dimensions are 1 5/8 x 1 3/8. Is that OK?

[@mikeunleashed1]

what trigger mechanism did you use?

[@mikeunleashed1]

@@andrewcoates5438 thanks!

[@arcdesigns7066]

@@mikeunleashed1 actually it's a neptonics Euro mech, the Koah is slightly different, but both are good

[@inconnuinconnu5456]

Chima svp

[@petermiller4357]

Hey do you sell them?

[@Phil900000]

Safety?

[@arcdesigns7066]

I've been diving for 20 years and owned many spearguns, only used a safety on my first gun, haven't used one since as I prefer to practice safe diving than to rely on a safety that might fail... also, everyone knows what it feels like to line up a fish, squeeze the trigger and nothing happens 😂 But yes... This mech can have a safety installed got this who use them. Thanks for watching

[@MaricarMolato-ff8uc]

55C7