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Main Boards => The Bowyer's Bench => Topic started by: andrianyuga on July 05, 2017, 02:07:00 PM

Title: Make My Own Fiberglass Lam
Post by: andrianyuga on July 05, 2017, 02:07:00 PM: Hi Everyone...

I started building this, past 6 month ago..the issues is hard getting Gordon Glass, Bearpaw glass or other bow backing products in my country...online purchase its not solving whole issues when your local customer wants good bows with cheap cost ..

In here..Local Handmade traditional bows sale about $ 150 - 200...Imported products sale about $ 350 - 600

So i started to make my own fiberglass to reduce production cost..this simple fiberglass making based on Poltrusion procces..but still homemade :D

Molding, lenght 1 meter, width 4,5 cm, depth 1 cm

(https://4-t.imgbox.com/eTjwgYGC.jpg) (http://imgbox.com/eTjwgYGC)

Moulding Tensioner

(https://2-t.imgbox.com/XEnB0SNv.jpg) (http://imgbox.com/XEnB0SNv)

Arrange 3 cm nails
4 pcs Horizontal, 5 pcs vertical

(https://5-t.imgbox.com/Un9yo2Wd.jpg) (http://imgbox.com/Un9yo2Wd)

Put mold release wax on main surface and side
(https://8-t.imgbox.com/Xnq8SCEx.jpg) (http://imgbox.com/Xnq8SCEx)

I use unidirectional fiber roving like this
(https://1-t.imgbox.com/yJDEQPtI.jpg) (http://imgbox.com/yJDEQPtI)

Getting started put roving on the mold
(https://9-t.imgbox.com/UynwpbIC.jpg) (http://imgbox.com/UynwpbIC)

After 20 min works
(https://8-t.imgbox.com/J6kcuyTb.jpg) (http://imgbox.com/J6kcuyTb)

(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/8979073c-534c-4909-8e8a-d4b2c1c1895e_zpscfath1xg.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/8979073c-534c-4909-8e8a-d4b2c1c1895e_zpscfath1xg.jpg.html)
Title: Re: Make My Own Fiberglass Lam
Post by: andrianyuga on July 05, 2017, 03:13:00 PM: 1. Clear Resin ( local common name Resin CMX type )
2. Catalyst
3. Styrene monomer
4. Grooving tools

Mixing Ratio :

- Half cup of glass ( 120 ml )
- 1 table spoon styrene
- 5 - 6 drops catalyst

based from above..you able to works 2 fiberglass strips

(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/42f9b8e5-f352-4812-8642-c2919b615d34_zps1r4ciwxh.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/42f9b8e5-f352-4812-8642-c2919b615d34_zps1r4ciwxh.jpg.html)

After Mixed
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/da1abb7e-0d2a-41a5-898a-4e265e5c89e8_zpshdfpbuyg.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/da1abb7e-0d2a-41a5-898a-4e265e5c89e8_zpshdfpbuyg.jpg.html)

Work first inner of roving layer, to avoid dry spot..dont forget to loose molding tension before
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/dec23774-b86f-4ea4-b0f8-17fecfee802d_zpsnhpt0izf.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/dec23774-b86f-4ea4-b0f8-17fecfee802d_zpsnhpt0izf.jpg.html)

(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/37ee4146-ac26-412d-ac22-ea6eebd4a2ad_zpsfitxi7xq.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/37ee4146-ac26-412d-ac22-ea6eebd4a2ad_zpsfitxi7xq.jpg.html)

And then, pour the resin outer roving surface
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/24a79048-e66c-4ac1-8404-cdf0c65fb394_zps2gjiq6ju.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/24a79048-e66c-4ac1-8404-cdf0c65fb394_zps2gjiq6ju.jpg.html)

Grooving with 1 hour working time before resin getting cured
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/114cc79a-97cd-4be6-be09-4ab698664770_zpsehwfxhwk.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/114cc79a-97cd-4be6-be09-4ab698664770_zpsehwfxhwk.jpg.html)

and after it..make sure there's no dry spot or bubble trap
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/4ae33536-6643-4965-987c-15e4d1e21130_zpsudgpifla.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/4ae33536-6643-4965-987c-15e4d1e21130_zpsudgpifla.jpg.html)

To avoid resin waste left on the mold, i use hairdryer and grooving with flat surface tool, look at resin waste on top
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/98ea089c-2e69-4472-bf7f-e4baecaa1165_zpsflyleloy.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/98ea089c-2e69-4472-bf7f-e4baecaa1165_zpsflyleloy.jpg.html)
Title: Re: Make My Own Fiberglass Lam
Post by: Buemaker on July 05, 2017, 05:27:00 PM: Very interesting. Let us see the rest.
Title: Re: Make My Own Fiberglass Lam
Post by: Mad Max on July 05, 2017, 05:38:00 PM: Yea
Title: Re: Make My Own Fiberglass Lam
Post by: mwosborn on July 05, 2017, 06:48:00 PM: Wow. Makes me grateful that my glass is only one quick click away!
Title: Re: Make My Own Fiberglass Lam
Post by: Roy from Pa on July 05, 2017, 06:55:00 PM: Yup, I get all my glass from Mr. McKenzie.
Title: Re: Make My Own Fiberglass Lam
Post by: Bvas on July 05, 2017, 07:13:00 PM: Quote
Originally posted by Roy from Pa:
Yup, I get all my glass from Mr. McKenzie.
What the????
Title: Re: Make My Own Fiberglass Lam
Post by: macbow on July 05, 2017, 08:32:00 PM: WoW,, good work.

Roy has been into glass for a long time. Longnecks.
Title: Re: Make My Own Fiberglass Lam
Post by: monterey on July 05, 2017, 09:34:00 PM: Quote
Originally posted by macbow:
WoW,, good work.

Roy has been into glass for a long time. Longnecks.
:biglaugh: :laughing: :laughing:
Title: Re: Make My Own Fiberglass Lam
Post by: andrianyuga on July 06, 2017, 12:28:00 AM: I put the pressure board on top, and pressed with inner tube band, and tighten the tensioner before
Let it dry in direct sunlight for 4 - 6 hours
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/d2ffcef2-dbe8-464c-ad39-87c97531d2ec_zps6gmqeb55.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/d2ffcef2-dbe8-464c-ad39-87c97531d2ec_zps6gmqeb55.jpg.html)
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/25a972a4-7b3d-40f7-8362-3144c3b87719_zpsxd9bjk53.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/25a972a4-7b3d-40f7-8362-3144c3b87719_zpsxd9bjk53.jpg.html)

during drying procces, you can see resin waste squeezing out
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/840fa63e-7015-419b-bfbf-9fc2fd674b7e_zpshytt4tez.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/840fa63e-7015-419b-bfbf-9fc2fd674b7e_zpshytt4tez.jpg.html)

open the pressure board carefully, actually there's no little black spot on it, that's my camera :D
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/ba4f080a-3588-4041-9cf6-d3edb7cedd2f_zpslpc9gdvq.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/ba4f080a-3588-4041-9cf6-d3edb7cedd2f_zpslpc9gdvq.jpg.html)

Cut here
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/4b2e6e0d-9da6-4007-9ce4-b5ad138633e6_zpsqz7d1kno.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/4b2e6e0d-9da6-4007-9ce4-b5ad138633e6_zpsqz7d1kno.jpg.html)

carefully released from the mold
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/766011ce-1225-4e1e-b266-fbd1eb13532e_zpsan5iglwh.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/766011ce-1225-4e1e-b266-fbd1eb13532e_zpsan5iglwh.jpg.html)

And the results of homemade fiberglass Lam
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/4945d04e-bfbd-49b1-860e-b88fff3f6a9f_zpsxqaufk9a.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/4945d04e-bfbd-49b1-860e-b88fff3f6a9f_zpsxqaufk9a.jpg.html)
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/ace45c3b-ec00-4c47-bc75-b4387b142994_zps7rlkqhpi.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/ace45c3b-ec00-4c47-bc75-b4387b142994_zps7rlkqhpi.jpg.html)
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/daa92acf-6d1c-4b8a-9ffc-437b74a5e5c4_zpsbjuagpa0.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/daa92acf-6d1c-4b8a-9ffc-437b74a5e5c4_zpsbjuagpa0.jpg.html)
Title: Re: Make My Own Fiberglass Lam
Post by: Holm-Made on July 06, 2017, 01:20:00 AM: Amazing.

Once the word gets out n this Ol' Kenny will be looking for new employment again. LOL
Title: Re: Make My Own Fiberglass Lam
Post by: andrianyuga on July 06, 2017, 01:20:00 AM: Here's the Bows
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/ed2d7b60-3aae-4a01-a677-e296b89391b9_zpstavarjow.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/ed2d7b60-3aae-4a01-a677-e296b89391b9_zpstavarjow.jpg.html)
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/IMG-20170704-WA0002_zps5mzre44w.jpeg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/IMG-20170704-WA0002_zps5mzre44w.jpeg.html)
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/501a744a-9549-46a8-83f9-3fd5311e6902_zpslkpuscdm.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/501a744a-9549-46a8-83f9-3fd5311e6902_zpslkpuscdm.jpg.html)
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/3ba3d0d5-a6f0-4d1b-8494-5fb070cf5bd8_zpsw1poox5w.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/3ba3d0d5-a6f0-4d1b-8494-5fb070cf5bd8_zpsw1poox5w.jpg.html)

Black glass on Tatar Bows
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/0f23dcbb-e779-4396-bacb-d0520eb4affa_zpsyvkvmiyn.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/0f23dcbb-e779-4396-bacb-d0520eb4affa_zpsyvkvmiyn.jpg.html)

White Glass on Turkish Bows
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/IMG-20170616-WA0006_zpslfabzses.jpeg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/IMG-20170616-WA0006_zpslfabzses.jpeg.html)

Clear on One piece recurve
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/dd154c5b-0005-4c97-9599-9e5efd628e60_zpse2wrzvhd.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/dd154c5b-0005-4c97-9599-9e5efd628e60_zpse2wrzvhd.jpg.html)
(http://i1372.photobucket.com/albums/ag354/Yuga_Andriano/cba9a696-6d77-472f-a287-8e6eaa4e4d01_zpsqky1afri.jpg) (http://s1372.photobucket.com/user/Yuga_Andriano/media/cba9a696-6d77-472f-a287-8e6eaa4e4d01_zpsqky1afri.jpg.html)
Title: Re: Make My Own Fiberglass Lam
Post by: Roy from Pa on July 06, 2017, 06:51:00 AM: Nice work.

All right Mac, LOL.
Title: Re: Make My Own Fiberglass Lam
Post by: Robertfishes on July 06, 2017, 08:54:00 AM: Very nice bows, thanks for sharing the pictures of your fiberglass production.
Title: Re: Make My Own Fiberglass Lam
Post by: rainman on July 06, 2017, 05:58:00 PM: Very informative, and imaginative.
Title: Re: Make My Own Fiberglass Lam
Post by: monterey on July 06, 2017, 07:19:00 PM: Very interesting and intriguing. Now I'll end up tripling my glass cost trying to make it. :biglaugh:
Title: Re: Make My Own Fiberglass Lam
Post by: bjansen on July 06, 2017, 10:41:00 PM: I am very impressed Great job
Title: Re: Make My Own Fiberglass Lam
Post by: on July 07, 2017, 12:06:00 AM: Pretty cool technique you have got there... Nice looking bows also...
Title: Re: Make My Own Fiberglass Lam
Post by: andrianyuga on July 07, 2017, 12:26:00 AM: Quote
Originally posted by Roy from Pa:
Nice work.

All right Mac, LOL.
thanks.. :D
Title: Re: Make My Own Fiberglass Lam
Post by: andrianyuga on July 07, 2017, 12:28:00 AM: Quote
Originally posted by Shredd:
Pretty cool technique you have got there... Nice looking bows also...
thikness result is 1.4 mm..must be into drum sander to get 1.2 mm or 1 mm
Title: Re: Make My Own Fiberglass Lam
Post by: Pago on July 07, 2017, 10:38:00 PM: Elegant, robust and functional. Congratulations!
Title: Re: Make My Own Fiberglass Lam
Post by: Mad Max on July 08, 2017, 03:47:00 PM: I like the bows, very nice
When you first string the bow's, is the tiller close?
How close to being the same is the glass to each other?

You got the corner market on glass over there. :thumbsup:
Title: Re: Make My Own Fiberglass Lam
Post by: haklee on July 25, 2017, 07:59:00 AM: I can't see any images. I really want to see those images !! I think photobucket not allow anymore upload image other website. so i can't see any images. where i'm living there is no archery supply(?) store. we can buy bow, arrow but no fiberglass.. can you please upload images again

Thanks
Title: Re: Make My Own Fiberglass Lam
Post by: Elison on August 08, 2017, 07:03:00 PM: I would like the pictures too. Here in Brazil we have the same problem.
Title: Re: Make My Own Fiberglass Lam
Post by: andrianyuga on August 09, 2017, 07:50:00 AM: I will reupload the pic..sorry for photobucket trial version..thx u
Title: Re: Make My Own Fiberglass Lam
Post by: haklee on August 10, 2017, 08:43:00 AM: thanks for reupload pics but i only can see 7 pictures. is it all?

mold is very similar with one that i saw on russian forum

and what is Styrene monomer and it's purpose?

what is cmx type resin? is it different with 2part epoxy?

what tex of roving you use? 2200 tex?
Title: Re: Make My Own Fiberglass Lam
Post by: Brett Leinmiller on August 11, 2017, 05:13:00 PM: I'm in Kansas and I can't see most of them either. I just see photobucket box that says I need to update for 3rd party hosting. I want to figure this out so I can see all posted pictures. Its the same on many websites.