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Thread: connecting with dowels
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19th May 2017, 08:04 AM #1Member
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connecting with dowels
I have a horse's head attaching to his neck. I'm following the plans. It uses 3 dowels. I have an expensive dowel tool. I drill the original holes using measurements and squaring for center lines. The dowels get glue and are set in place. Then I attempt to attach to head to the neck. The 2nd piece doesn't want to fit. So I begin carving away at the dowels and enlarging one set of holes. I use a glue that expands to fit the added space. I can't get a nice tight fit between the 2 pieces and the head is slightly tilted in 2 directions after I made sure the two boards were perfectly thinned to match. I'm not sure where to go with this in order to avoid it in the future. I'm wondering about using smaller dowels and larger holes. I'm wondering about using the norm on one piece and enlarging the holes on the other piece. I'm sure two dowels would be simpler than 3 but I'd like to learn how to get this setup to work properly.
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19th May 2017, 11:09 AM #2SENIOR MEMBER
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There are dowel pins that may work for your job ,these fit into a drilled hole of your choice size,fit the pins into the holes,each pin has a spike in the centre,place the adjoining piece in position where you want it to join and apply pressure,the spikes leave a centre mark which is where you drill for the other dowel hole
Drill the holes where you want as many as you want but make sure you drill square off the joining surface
You can get these pins from Bunnies in a couple of sizes
I use this method when I can't use a dowel jig,works well for me
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19th May 2017, 05:17 PM #3
I think you need to drill for the dowels before you carve the head and neck. Working off square sides, you should be able to get a very good fit of the boards
regards from Alberta, Canada
ian
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19th May 2017, 07:25 PM #4GOLD MEMBER
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I'm not sure what "an expensive dowel tool" is as there are so many dowel tools. However, if it makes you feel any better, some users have the same difficulty even using a super expensive tool like a Festool Domino machine. ian's response above most probably gives you the clue. Working of perfectly flat, square surfaces gives the best chances of success. Even if you use dowel-locators as nrb suggests, you will have problems if the dowels are not perfectly in line - that is if one hole goes in one direction and the other in a different direction (even slightly). Twas ever the way with dowels.
If you can give us some photographs there may be more expert people than me who can give better advice where to go from here. One thought that I have is to question whether you need dowels at all to locate a head on a rocking horse (if that is what you are doing). Because you have a large contact surface there are plenty of really strong adhesives that will provide a good joint without dowels as long as both surfaces are flat. Some epoxies even allow the surfaces to be imperfect. Then, especially if you glue before final carving as ian suggests, you can locate using wide tape around the circumference and, as long as you can clamp the joint firmly it will be strong. Then, final trimming and sanding will remove any inaccuracy in alignment.
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19th May 2017, 11:59 PM #5Member
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Thank you. This does not seem to replace the dowel jig. I have seen these and I think I understand how adding these may assist. The other thing I'm thinking is that if the wood project is not perfectly thinned across the board then when you place the jig in one direction for one end and then reverse it to fit on the other end of the board, the dowels may not end up pointing in exactly the same direction.
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20th May 2017, 12:00 AM #6Member
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You know what? I think I own some of these. Typical of me to keep buying tools and then forgetting I own them. I have bought two identical tools on some occasions!
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20th May 2017, 12:01 AM #7Member
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another good idea
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20th May 2017, 10:03 AM #8SENIOR MEMBER
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These dowel pins are used instead of a doweling jig NOT with a jig
I'm sorry if my explaining how to use the pins is not clear
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21st May 2017, 05:19 AM #9GOLD MEMBER
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Some of my wood carvings finish as glue-ups where I have elected to use different woods.
The dowel pins are lifesavers inside fitted joints.
It's not so much the depths and the angles but the simple spacing for a pair of pegs.
My sole bit of advice is to buy 2 sets. One might be used for indexing purposes while
the next set is being used for fresh markings.
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13th June 2017, 09:55 PM #10Senior Member
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If going for sloppy dowels in the holes to correct alignment use something like epoxy that has strength after setting. Taking a guess polyurethane was what you were talking about (expanding) It glues well but the foamy part has very poor strength-gap is filled but not with anything substantial.
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