Muz Bow #3. "Bitsa

How to make a Bow, a String or a Set of Arrows. Making equipment & tools for use in Traditional Archery and Bowhunting.

Moderator: Moderators

Post Reply
Message
Author
User avatar
Muz1970
Posts: 259
Joined: Thu Feb 13, 2014 10:41 am
Contact:

Muz Bow #3. "Bitsa

#1 Post by Muz1970 » Sat Aug 08, 2015 10:12 pm

I knocked up my third bow. Using WA timbers, though the Mallabie I used wasn't 100% dry but I didn't think It would cause to much drama as its super heavy and dense. WRONG...I have been using my oven to cure the wipe on poly and the extra heat has caused the Mallabie to shrink. So I made a few modifications in an endeavour to safe the bow. Other than that I'm happy how this one has turned out. Made up some veneers with Sheoak, Tuart, Jarrah and Mallabie. Used Sheoak, Tuart and Mallabie in riser along with 2 x 3mm fiberglass as I had planned to try out making it into a 2 piece. Since removing outside piece of Mallabie I've replaced it with Blackbutt and Jam wood. The glass was sanded down from 0.050 to 0.030 and 0.040. Tips have Western Woody Pear and Sheoak. Hence why I've called it "BITSA".

Hopefully it lasts a few months before the remaining Mallabie in the riser causes me grief. I've glued the striker plates on tonight and look forward to having a shot with it tomorrow. I did have a few quick shots before coating it and it fairly spits them out.

Its got double 0.020 carbon in limbs and is 62"long. 52lbs @ 31" and Its cut 1/8 past center.
3.jpg
3.jpg (27.35 KiB) Viewed 2882 times
5.jpg
5.jpg (51.59 KiB) Viewed 2882 times
6.jpg
6.jpg (22.6 KiB) Viewed 2882 times

User avatar
Muz1970
Posts: 259
Joined: Thu Feb 13, 2014 10:41 am
Contact:

Re: Muz Bow #3. "Bitsa

#2 Post by Muz1970 » Sat Aug 08, 2015 10:38 pm

After a bit of sanding and then finished.
9.jpg
9.jpg (27.99 KiB) Viewed 2878 times
7.jpg
7.jpg (79.59 KiB) Viewed 2878 times
8.jpg
8.jpg (101.92 KiB) Viewed 2878 times

User avatar
Muz1970
Posts: 259
Joined: Thu Feb 13, 2014 10:41 am
Contact:

Re: Muz Bow #3. "Bitsa

#3 Post by Muz1970 » Sun Aug 09, 2015 2:51 pm

Gave the bow a quick tune and it shoots great.

Shot a variety of arrow weights through it and reweighed it at 51# @ 31"

620gn arrows came out at 170fps for 12.1grains/Lb

582gn arrow was 175fps at 11.4gn/Lb

555gn arrow was 180fps at 10.88gn/Lb

and 454gn arrow was 195fps at 8.9gn/Lb
10.jpg
10.jpg (59.42 KiB) Viewed 2850 times
11.jpg
11.jpg (148.37 KiB) Viewed 2850 times
12.png
12.png (250.26 KiB) Viewed 2850 times

User avatar
greybeard
Supporter
Supporter
Posts: 2992
Joined: Tue Feb 07, 2006 9:11 am
Location: Logan City QLD

Re: Muz Bow #3. "Bitsa

#4 Post by greybeard » Sun Aug 09, 2015 4:21 pm

Muz1970 wrote:Shot a variety of arrow weights through it and reweighed it at 51# @ 31"

620gn arrows came out at 170fps for 12.1grains/Lb

582gn arrow was 175fps at 11.4gn/Lb

555gn arrow was 180fps at 10.88gn/Lb

and 454gn arrow was 195fps at 8.9gn/Lb
The numbers look pretty good, was there a noticable difference in the feel of the bow between the different weight arrows?

Daryl.
"And you must not stick for a groat or twelvepence more than another man would give, if it be a good bow.
For a good bow twice paid for, is better than an ill bow once broken.
[Ascham]

“If a cluttered desk is a sign of a cluttered mind, of what, then, is an empty desk a sign?” [Einstein]

I am old enough to make my own decisions....Just not young enough to remember what I decided!....

User avatar
Muz1970
Posts: 259
Joined: Thu Feb 13, 2014 10:41 am
Contact:

Re: Muz Bow #3. "Bitsa

#5 Post by Muz1970 » Sun Aug 09, 2015 4:43 pm

Hey Daryl, just what you'd expect from shooting heavier arrows. Bow was quieter. Won't be using the heavy arrows just wanted to see how she performed. Plan on using the 555gn arrow which is a 400 spine gold tip with a 225gn point. Worked out it gives me a 20%FOC so should be a great hunting set-up. Haven't worked out the lighter FOC but they fairly hoot.

Cheers Muz

User avatar
UPTHETOP
Posts: 1187
Joined: Mon Jun 11, 2007 9:03 pm
Location: Dalby
Contact:

Re: Muz Bow #3. "Bitsa

#6 Post by UPTHETOP » Mon Aug 10, 2015 1:00 pm

Gotta love the local timber Muz, wont be long and you'll be figuring how to put some sandgroper scales in the riser inlays. Nice bow mate looking better everyone you make.

Cheers Wayno
Justastik Arrow Craft, Its all about the Wood.

User avatar
rodlonq
Posts: 2096
Joined: Wed May 06, 2009 3:02 pm
Location: Ingham NQ

Re: Muz Bow #3. "Bitsa

#7 Post by rodlonq » Mon Aug 10, 2015 5:17 pm

Great work Muz. The WA timbers contrast beautifully. Good performance too, where in the limb layout is the carbon located (e.g. near the back)?

Cheers.... Rod

User avatar
Muz1970
Posts: 259
Joined: Thu Feb 13, 2014 10:41 am
Contact:

Re: Muz Bow #3. "Bitsa

#8 Post by Muz1970 » Mon Aug 10, 2015 11:44 pm

Hey Rod, yeah the carbon is below the back veneer.

0.030" glass on back
0.020" veneer
0.020" carbon
0.020" carbon
2 bamboo cores with 0.003" tapers each
0.020" veneer
and 0.040" glass on belly

Muz

User avatar
bigbob
Posts: 4098
Joined: Sat Jul 10, 2010 8:55 pm
Location: sunshine coast

Re: Muz Bow #3. "Bitsa

#9 Post by bigbob » Tue Aug 11, 2015 8:32 am

nice neat work and great performance, Muz.
nil illigitimo in desperandum carborundum
razorbows.com

Post Reply