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Author Topic: 3pc takedown - another advice needed plz (finished. FD pic added)  (Read 8138 times)

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Offline arachnid

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3pc takedown - another advice needed plz (finished. FD pic added)
« on: December 16, 2015, 06:03:10 am »
Hi guys.


A quick question: is it safe enough to use an 8mm dowel as an alignment pin (instead of a metal pin)?

If not, what can I use as a metal pin (8mm diameter)

Thanks
« Last Edit: December 27, 2015, 01:25:47 pm by arachnid »
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Offline PEARL DRUMS

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #1 on: December 16, 2015, 07:36:12 am »
No. More like 5 mm x 12mm.
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Offline PEARL DRUMS

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #2 on: December 16, 2015, 07:42:14 am »
Not sure how mail order works in Israel. If you can order from Bingham's, you can get the whole 3 piece assembly for $18 USD. That includes bezels, washers, threaded inserts, bolts and alignment pins.
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Offline arachnid

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #3 on: December 16, 2015, 08:07:13 am »
Thanks pearlie but I got everything else I need. Just the pin....  And shipping will cost quite a lot.

Any creative ideas?
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Offline PEARL DRUMS

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #4 on: December 16, 2015, 08:11:02 am »
If you have any type of manufacturing in your country you should be able to find an outlet for machine dowels. They are exactly what is being sold as limb pins.
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Offline missilemaster

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #5 on: December 16, 2015, 08:30:48 am »
There has got to be somewhere you can get  1/4" steel rod over there, thats all alignment pins are.
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Offline arachnid

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #6 on: December 16, 2015, 08:45:56 am »
Thanks. I'll try to figure something out.
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Offline Selfbowman

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #7 on: December 16, 2015, 08:47:27 am »
You have a lumber yard. Usualy they have misc. pins and such.
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Offline PEARL DRUMS

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #8 on: December 16, 2015, 08:47:42 am »
You could use the shank of a bolt if you had to. Just saw the head and threads off.
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Offline arachnid

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #9 on: December 16, 2015, 08:48:27 am »
But just for mevto know... Why not use a dowel? All it's doing is holding the lime so it won't move sideways , and there is no pressure sidways...
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Offline PEARL DRUMS

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #10 on: December 16, 2015, 09:00:02 am »
There are shear forces at work. Most of the glass guys use TWO hardened steel pins per limb because that is were failure occurs.
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Offline Marc St Louis

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #11 on: December 16, 2015, 09:10:08 am »
Some wood species are extremely hard and strong, like African Blackwood, and should be available overseas.  I use 3/16" brass and have not had any trouble so I would think that one of these dense species would be good enough if made properly
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Offline arachnid

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #12 on: December 16, 2015, 10:00:56 am »
Quote from: PEARL DRUMS on December 16, 2015, 08:47:42 am
You could use the shank of a bolt if you had to. Just saw the head and threads off.

I did just that and it seem to work.
Do I need to reinforce the alignment hole in the limb somehow or do I just leave a hole in the wood?
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Offline PEARL DRUMS

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #13 on: December 16, 2015, 10:26:13 am »
Just a hole in the limb is adequate.
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Offline PatM

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Re: Wooden dowl as an alignment pin (3pc takedown)
« Reply #14 on: December 16, 2015, 10:27:52 am »
Generally you are better off with an insert for the pin to go into as well but solid wood is pretty adequate.
 Typical shelf units of particle board and the like often have pins that help align them. You could probably salvage some of them.
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