In another thread I tried to post some pictures about an ongoing deck project -- I will try to post the same pic here, but the issue is trying to use the domino to fix a problem with some boards that come together at 45 degree angles. These are on steps that I am building for my deck. A month or so ago I decided to make some "bullets" on my deck risers and elsewhere to minimize the use of butt joints. After the step boards have been down for a week or so, it looks as if some cupping may cause some future problems. I thought about using a nail or perhaps a small stainless screw -- if ai can find one small enough -- to pin the joint together. Then, I thought the domino might be a better solution. It will work for those boards that I have not yet attached, but is there a way to use the domino for the boards that are in place? I realize I will have to loosen the stair treds, but it seems I might be able to insert the dominos in some of the boards that are already down Te attached (I hope) image shows the "bullets" --
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Can the Domino Solve this problem?
- Thread starter Hotwheels
- Start date
Scott Rollins
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- Nov 20, 2007
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You could fix the cupping with the domino, but you would have to remove the "bullet" and one side of the treds. I do not know the width of the boards you used, but you could use one or more domino (of some weather resistant material, not the standard birch) to reduce or eliminate the cuppiong at the end of the board. In the attached pic I would have a domi in the middle of the board and maybe one on each end (depending on width).
Thanks for the reply Scott,
After thinking over this some and trying the domino on the existing treds/bullets, I think I need to take the boards off and domino them on a flat surface. I am sure this will work, I just was hoping i did not have to take off the boards I have screwed down. I should have thought of this problem before hand, but it was just one of thousands of decisions that had to be made and it was only afterwards that I really saw the issue. So, it is just a bit more labor ..... FYI the Ipe boards are 5 3/8- 5 1/2 ". I had the purpleheart milled to 5 1/2 inches. The variation in the ipe lumber has been its own problem in getting all the lines in order .....
Thanks
John
After thinking over this some and trying the domino on the existing treds/bullets, I think I need to take the boards off and domino them on a flat surface. I am sure this will work, I just was hoping i did not have to take off the boards I have screwed down. I should have thought of this problem before hand, but it was just one of thousands of decisions that had to be made and it was only afterwards that I really saw the issue. So, it is just a bit more labor ..... FYI the Ipe boards are 5 3/8- 5 1/2 ". I had the purpleheart milled to 5 1/2 inches. The variation in the ipe lumber has been its own problem in getting all the lines in order .....
Thanks
John
Jerry Work
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- Jan 16, 2007
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Hi John,
Unless your Ipe and Purple heart boards are the same thickness you will have a devil of a time using a Domino to hold the two boards both at the same plane on the upper (walking) surface and properly fixed to the support boards underneath. If you put the Domino in the center of the thicker board, the thinner will be held up from the support by half the difference in their two thicknesses. If the two boards are the same thickness, then the only issue is positioning the Domino in both to bring your joint closed properly. Using the Domino machine fence set to half the thickness of the pieces as the reference and drawing one or more pencil lines across both pieces while they are in proper registration one with another, you can cut the Domino mortises in each by only removing one of the boards. Be sure to select a domino tenon suitable for exterior use and be sure to use glue designed for exterior applications - something like Tightbond III. Obviously, make sure your bit does not impact a screw in the board you do not remove and make sure the domino mortise(s) are far enough away from the point on your miter that they do not go all the way through either board. Ipe can move all over the place so maintaining the tight miter joints you seek in your "bullets" will be a chore and somewhat problematic. Also know that if you finish your deck with any kind of oil concoction the purple heart will go a dark muddy brown in just a few weeks of exposure to the UV from the sun and the Ipe will also turn a lighter, but similar color over time. The only way I know of to maintain the original color of both the purple heart and the Ipe for any protracted period of time would be to use a water based finish with a lot of UV inhibitor made specifically for exterior applications. Hope I understood your questions correctly and that this will help.
Jerry
Unless your Ipe and Purple heart boards are the same thickness you will have a devil of a time using a Domino to hold the two boards both at the same plane on the upper (walking) surface and properly fixed to the support boards underneath. If you put the Domino in the center of the thicker board, the thinner will be held up from the support by half the difference in their two thicknesses. If the two boards are the same thickness, then the only issue is positioning the Domino in both to bring your joint closed properly. Using the Domino machine fence set to half the thickness of the pieces as the reference and drawing one or more pencil lines across both pieces while they are in proper registration one with another, you can cut the Domino mortises in each by only removing one of the boards. Be sure to select a domino tenon suitable for exterior use and be sure to use glue designed for exterior applications - something like Tightbond III. Obviously, make sure your bit does not impact a screw in the board you do not remove and make sure the domino mortise(s) are far enough away from the point on your miter that they do not go all the way through either board. Ipe can move all over the place so maintaining the tight miter joints you seek in your "bullets" will be a chore and somewhat problematic. Also know that if you finish your deck with any kind of oil concoction the purple heart will go a dark muddy brown in just a few weeks of exposure to the UV from the sun and the Ipe will also turn a lighter, but similar color over time. The only way I know of to maintain the original color of both the purple heart and the Ipe for any protracted period of time would be to use a water based finish with a lot of UV inhibitor made specifically for exterior applications. Hope I understood your questions correctly and that this will help.
Jerry
richard.selwyn
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- Jan 23, 2007
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I know that this won't answer your problem - sorry - but has anyone any knowledge of the domino deck fixing system - I've seen the brackets for sale but not found any info anywhere.
Richard
Richard
Forrest Anderson
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- Jan 23, 2007
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richard.selwyn said:I know that this won't answer your problem - sorry - but has anyone any knowledge of the domino deck fixing system - I've seen the brackets for sale but not found any info anywhere.
The thread I started back on 21 Sep entitled New Festool Domino Deck Connector System contains photos, part numbers, video etc.
Forrest
Today I used the domino to affix the miters in the "bullets" and it seems to have worked fine. Fortunately, the thickness of the Ipe is relatively consistent and I had the purpleheart milled to a sample of the Ipe. I selected purpleheart for a contrast wood to go with the Ipe because I saw a several year old purpleheart sample that turned a rich brown color that I think will work well with the Ipe brown. At this point it is a "time will tell" issue, but for the short term it is doing what I need done: hold the miters together. I think there are some other possibilities in using dominos for deck building, but it is all labor intensive. Nonetheless, it is a good tool to have in the box for situations such as this. Thanks for the help.
JR
JR
Greg,
The Ipe milled fine. I expected there to be some issues, but it was only slightly more difficult than other hard wood projects where we have used the domino. As long as I used a slow plunge, things worked fine, it was a surprise. It may be that the 5mm bit helped since it was not taking that big a cut in the wood. I have some projects for some of the left over IPE and I will be using a larger bit for those, so I will keep you posted if there is any major difference.
John
The Ipe milled fine. I expected there to be some issues, but it was only slightly more difficult than other hard wood projects where we have used the domino. As long as I used a slow plunge, things worked fine, it was a surprise. It may be that the 5mm bit helped since it was not taking that big a cut in the wood. I have some projects for some of the left over IPE and I will be using a larger bit for those, so I will keep you posted if there is any major difference.
John
richard.selwyn
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- Jan 23, 2007
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Forrest Anderson said:richard.selwyn said:I know that this won't answer your problem - sorry - but has anyone any knowledge of the domino deck fixing system - I've seen the brackets for sale but not found any info anywhere.
The thread I started back on 21 Sep entitled New Festool Domino Deck Connector System contains photos, part numbers, video etc.
Forrest
Thanks very much - I missed that.
Richard.
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