Posts by blacqfins

Quote from Teaspoon shallow

The Wood Source - About Our Woods

This timber is fit for purpose for gun building. :thumbsup2:

Just pay attention when laminating it and make sure it is well sealed.
I look forward to the updates.:cool2:

Thanks

Common Name(s): White Ash, American White Ash

Scientific Name: Fraxinus americana

Distribution: Eastern North America

Tree Size: 65-100 ft (20-30 m) tall, 2-5 ft (.6-1.5 m) trunk diameter

Average Dried Weight: 42 lbs/ft3 (675 kg/m3)

Specific Gravity (Basic, 12% MC): .55, .67

Janka Hardness: 1,320 lbf (5,870 N)

Modulus of Rupture: 15,000 lbf/in2 (103.5 MPa)

Elastic Modulus: 1,740,000 lbf/in2 (12.00 GPa)

Crushing Strength: 7,410 lbf/in2 (51.1 MPa)

Shrinkage: Radial: 4.9%, Tangential: 7.8%, Volumetric: 13.3%, T/R Ratio: 1.6

Common Name(s): Teak, Burmese Teak

Scientific Name: Tectona grandis

Distribution: Native to southern Asia, Teak is also widely grown on plantations throughout tropical regions of Africa, Asia, and Latin America.

Tree Size: 100-130 ft (30-40 m) tall, 3-5 ft (1-1.5 m) trunk diameter

Average Dried Weight: 41 lbs/ft3 (650 kg/m3)

Specific Gravity (Basic, 12% MC): .54, .65

Janka Hardness: 1,070 lbf (4,740 N)

Modulus of Rupture: 13,940 lbf/in2 (96.1 MPa)

Elastic Modulus: 1,570,000 lbf/in2 (10.83 GPa)

Crushing Strength: 7,770 lbf/in2 (53.6 MPa)

Shrinkage: Radial: 2.5%, Tangential: 5.8%, Volumetric: 7.0%, T/R Ratio: 2.3

Common Name(s): African Padauk

Scientific Name: Pterocarpus soyauxii

Distribution: Central and tropical west Africa

Tree Size:100-130 ft (30-40 m) tall, 2-4 ft (.6-1.2 m) trunk diameter

Average Dried Weight: 46 lbs/ft3 (740 kg/m3)

Specific Gravity (Basic, 12% MC): .61, .74

Janka Hardness: 1,970 lbf (8,760 N)

Modulus of Rupture: 16,830 lbf/in2 (116.0 MPa)

Elastic Modulus: 1,700,000 lbf/in2 (11.72 GPa)

Crushing Strength: 8,130 lbf/in2 (56.0 MPa)

Shrinkage: Radial: 3.3%, Tangential: 5.2%, Volumetric: 7.6%, T/R Ratio: 1.6

So, would Hard ash work??

Quote from Teaspoon shallow

Can you post the scientific name? In Australia we get so many timbers with the same common names or names like Oak which are not Oaks at all.:confused1:

Ash (Fraxinus americana) Northern Hard Ash

I have another Q?? about hard ash, how will is hold up as a speargun?.. reasons I wanted to use it because of the color of the would.... that way I'll be able to dye it a blue/green color and of course completely seal it with epoxy.. it's not as hard a teak or padauk... bit it is hard ash...:D

Quote from Teaspoon shallow

To straighten and square my blanks I first run them through one of my table saws with an extended fence. (2.4m long clamped into position, see the tool on the right of this picture)

http://i168.photobucket.com/al…st247/015_zps7e1c720d.jpg

I then put them through one of my thickness planners.

You can also use a jointer:
http://i168.photobucket.com/al…st247/013_zpsc3226f33.jpg

Alternatively you can do it manually with a plan, straight edge and square. I used to do it this way and you can achieve perfect results. Please season your blanks and once made close to the dimensions required, I season them again. (Some of the timbers I use are unstable but they are just so pretty).

Best of luck and ask as many questions as you like.:thumbsup2:

Display More

..Thanks

another Q?? How would I go about squaring a SG blank??

Quote from Dude george

Just a suggestion, but if Dan's store is not far from you I would recommend based on what many have said on this forum a walk down to his store and a chat with him... He has built a few guns and seems very willing to help new builders.
Speargun Trigger Mechanism

....thanks

Quote from Teaspoon shallow

G'day Blacqy

All sounds good but a bit of a friendly warning, Titebond 3 is not suitable for full submersion so please make sure that the epoxy coating is thorough and well maintained.

If anyone is making a timber laminated gun and epoxy coating them, I would recommend gluing the laminates with epoxy too. (Just my 2 cents)

I am looking forward to more photos of your progress.

Kind regards

Darren

Display More

Thanks for your 2cent

Quote from Dude george

My 2 cents of advice: You will want around a 48-55 inch gun with as much band stretch as you can design into your build. I would highly recommend a 7.5 mm shaft as it is fast for mid water fish and strong enough to tackle a decent grouper. 8 mm is what most reef hunters with wooden guns and a lot of big fish ambition use like me :).
I like an enclosed track but a deep track will do just as well or better depending on who you talk to. Band slot design in the front of the gun is important as lots of flex and strain goes there, so the less you cut out for your band slot I would think the better.
Here is a thread that I would take a lot of time to look at, it is not a reef gun but its design and thoughtful concept holds true for any type of gun. Smaller with 2 bands and a reel I would highly recommend.
http://spearfishing.world/spea…rida-bluewater-build.html

thanks for the tip....I plan on going with a 55" SG.. what size bands/shaft I would need??/ thanks again

Hi all,
I'm new to this site and I must say there is a lot of info on here to keep you busy for hours/days. I love to fish and I love to swim... so why not combine the love of two into one... so I decided to build me a speargun... I have the tools and a little bit of skill so I'll put them to use and build me a SG... I started off with the wood next I'll be buying the trigger mech and shaft I think that they are the next important parts for this build. I would need your help and guide to complete this buid, it will be like it's OUR gun...I plan on tapering the gun, I don't know if there is a "standard" size for SG... but after finial thickness my plans for the gun is to be 2" wide... taper down... height will be about 1-5/8" or 1-12/16" ...this thread will be more like a pictorial...because I have no idea what I'll be doing enjoy and your inputs are welcome
Specs:
Padauk 60" don't know what the complete size will be...meaning length
handle will be laminated:: wenge, purple heart veneer and hard ash
Titebond III
handle frame
Tuna or reef mech: if I go with the tuna, it's because I will not have to sq the edges
Shaft: don't know what size yet..???
line anchor
line guide
Muzzle bungie
rubber bands: 2 or 3..???
Epoxy....

Started with the beautiful piece of padauk

on this pic I plan the two middle blanks to 1/2", that way when I plan it sq... I can have my lams the same dem...

here is a pic of the new handle woods

Blank being glued up, I had to take it inside to use a longer table....

Quote from sdeisen

If you are diving in Miami I think you are very soon going to want a gun much much bigger than 36"
Either way you'll most likely go with two 16mm bands and a 7 or 7.5mm shaft

... thanks for the tip.... what size would be best for reefs / patch

Good afternoon, I'm new to this site and new to spearfishing.... ( I went this pass weekend with a short gun ) alot of info on this site.... I plan on building my own gun 36" maple gun.... I have some wood working knowledge and a wood shop... I build bass guitars.. so that part is covered.. the gun will be a little longer then 36"... my Q???s are... band size two bands shaft thickness ... just in case.... I'm in the Miami, Fl area and don't plan on spearing no deeper than 15' of water.... thanks for any info...