Waterfall edge coffee table

[Steve Catts]

Hi all,
I am trying to think through the challenges of executing a coffee table with waterfall edges on the ends (top slab has continuous miter at both ends so that slab flows all the way to the floor). The table needs to be 24-28" wide and I see no way to execute the miter on my cabinet saw even if I use a crosscut sled. I am assuming that the slab thickness would be 1-1/4 to 1-1/2" thickness.

The second question is best means to fix the miter joints. I don't have a Domino. The only way I can think of to add needed strength would be a cleat on the underside screwed to both sides of the joint.

Please share thoughts. I sure don't want to get into the middle of this and find my approach was not sound.

Thanks, Steve

http://www.sawmillcreek.org/image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAkGBwgHBgkIBwgKCgkLDRYPDQwMDRsUFRAWIB0iIiAdHx 8kKDQsJCYxJx8fLT0tMTU3Ojo6Iys/RD84QzQ5OjcBCgoKDQwNGg8PGjclHyU3Nzc3Nzc3Nzc3Nzc3Nz c3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3Nzc3N//AABEIAHQAoAMBIgACEQEDEQH/xAAaAAACAwEBAAAAAAAAAAAAAAADBAECBQAG/8QAPhAAAgECBAIGBwcDAgcAAAAAAQIDABEEEiExQVEFImFxgZE TMqGxwdHwBiMkQlJi4RQzcjSSFRZjgqKy8f/EABoBAAIDAQEAAAAAAAAAAAAAAAABAgMFBAb/xAAlEQACAgICAQMFAQAAAAAAAAAAAQIRAwQhMUESE2EiIzIzUR T/2gAMAwEAAhEDEQA/AMDD9DzNv1jzAvWjD0FJ c2B7K2Ash2Bt5VdYZCbPcAnTW9IViEPQ2HQXdz50yuFwcR0RmP O1PrhQFu7WA3LaCgySdGw/wBzFRg/sN/dSfA0m kUQxjRID41NnJ6sKeOtLP0rgkP3IxEx7VCgUKTpqUD7rDxp2s2 b3VBziWrBkfg0QkrG1gO4WqwwcjG7EgcddKwJumcSwP4kqf0xA D ay8VjcRMRmEso/ebo 4vCLFqy8s9fIMFB/exMSnlmufIUBukOjF9QTTH9iW99q8is2K/KuQdovR1/qZVsWYX4Bre6l7jLFrR8s9KOlYrgR4QJ2yyfCiDGySerkA5qvz rBwWEiWQM5cPzvet6NIAo6pc82199Ti2 yEsUY9IZhxbruI29/spyHGISA0Lr2rb KSQkDqoFHdUgLmvJKo8anyVOEWay4yJF9Ze5hr50x/cByBe9GrJCqV6guOdN4RQB6tjwtpUitwXgJJE9rhmt50o7EEgO CeVakasNcx8daFjThUUtivQr 6SwoohRlM8g9VqE0kv6vZRsNiej8fiGw BlkZkUsWAJXhsT38KtPh5UHVCN39U/Ghc9DfHDRMULH1VF 3hXm8Riuk3z/iyFVsuVVC 4V6 BFHOvKdIL6PEYpRuHvbxNc w3GqOzRhGbakZkqYl2 /EjkcXYmuMbILExqO0XrZY3wewO/upIoojR0AQttYVyrJfZovFXQn/TPJsHYcycgq5waKBnaIf XvqkkOLmuY5CRyqI8BITeRwP8AEEn21YQqgyth4x1vvOQ2FV9O zPeKIDs2q6YOJRrmP T291XSOOMkKiXO9hc0xNi7GdzYqPaaKsDn10I76u06R6DLfkda 5ZQ4u7eFrD206ZFslbRMoUKey9aKvIVGVAO21Z6kEZj1R qiDHxQwtIpaRE0aRQSq8NTsNaujwjnycs14vSMv3jtbkNKNGkY Nwi38zXlZftCwNo0B5E9b5Uji mcfMAvpSgPAU3NEfbZ7jE9JYTCKTNOiW3A38hWVL9rkUfgoA/73bTyHzrxsqtJIM7Fud6cjjRMKmtvjVU8zXRbj14y7NXEfabpb Eq4Sf0a/wDTGX fbWfJ6eee00sknV1JO9zU4SL 6n7L VFDEHDsRqyJf/dXJPNJurO/HghHpHovsNGW9Ky6ZYQvmx VekliK tv33rG xCKvRk0u2cqAOdrn41tyP8Ap08K0taNYkYe9K88heJwfzravNd KLl6Un5Eknx1r0i iQBiAO7Q ysHpcD/irEXAZVbrb2ItVeyvpsu0HWRr4AofwgPZcUHERFMPFyXQfCixC E07RVMS1oHQm9kFj3Cs/ybCFcIwE7BTtWmyJMACSpy3BrIw2mNlP5SqkeIFaiNcxG 6fE0TbT4ClJciE0UysQGSlpVyf6nEZbcPV/mnMSR6RkJsQAfaRT32ew GEWIneGMz nPXK3NrA104JPI6ZybNYo pGLFhpMWR/R4Wd/3Wyqf 41p4P7PYt/9Ti4MMv6Yxnb5e t84vKuUWCjlwof9Xre4t212rGkZc9mb64BQdBdG4azusmJcfmn Ob2beyk/tfiI/wDl6SKNHALxjQWVbMOHhWgcdl9bbiBWT9pZl6Q6Jkw8OsuZWAb jbUinJJRZXjm3NOR49/XA8arLrIo7BUHNHJkkVlYAesLVZyGlUjhXFdGvSfKLRkemYnZV J9tN4ZC4BPWCAac6RUn0r5Rfh7b1pKxw ETL6zG 2/1aufKzpxRCxkriwSPXBuBQMS0nooDwCZRbspwqGmw7Xtm0NLOE bDYcqTfPl1qhPkv8HuPsrF/TdBQKbEktcns0 FaTsTqo9m1KYBRFgIFGpy6DtOtMFSEAOnZet7HxBI8tmd5ZP5F QuZgXY24AaAVkdPrkxkL8ClvI/wA1sIoGoI7bms37RJePDycAxHmP4qjMrgzo03WZCcQ 6dRsGP17KXmF8Pf9ppnC9cSqNyPr30pKT6MDkrWrNN1CmEF8S4/YDWhHfJGeWntpVAExZZfzRinI9cOexqUxoRx63xRN7XQW/wB38010LNljxSMdpb wfKg4xbzxnmCfaKBhXMWIxQJ3Kn2V1ar tHFvr7LNeSYX30obSqeN6U9MeJvVWbiONaJih5JX4e lmkLnQm/bUg/q1qbAi1RZJFJFSZRHOiuvIi9IS9FRMepI0J4XJKn6760ljPCjJ DprqOVVuKfZbGco9M86ej8VhnzSRFkuTnXUUdGE2IjCG8ca6kV vxRsl/RkFf0ke6pOCgxB60eRyN10YeIrmya99Hbi3XH8kZImAaENp173 76Dh7lFj5YjQ1qy9CyjKYZQ4BGjix8/4pGHA4pMUsRw0t2lzCy3G/MVyexOMuUaMdnFONpnukVFjRCo6qgXtrUSZrWAt31cLl1OrceN UklOa2Xq9tbR5nzZWMKwvfrd1JdPozdHhgPUcE923xpqA5NgQa KwzjrLqdCOBqqStUW436JqX8PN4KQCQ2O6/Kl5T1B2XFbGM6IyOZcENeMQP/AK/KsOZrSSobizag7is2eOUXybuHNDIrTKxn8Qn JFaMWkZH6mNZSN98uuxPurUU3S4OxquRchLGXHo3Glifr2UpG3 4iYHiF1p3HaxP2Gs MEzOTxArp1fzRyb36WNC2luFWAOthVUUixOlMxrrpWmzDBKjWu aKsdlBO1FQAmxO9FjiJ1OmtQYyipYgWHlTEcRPCiRwWFyAO00Z WHqoCSPAedIdkJBpsKsYo7jUBtbZd6KkTMOuQo5L86YjRQLKAB 2CkFiwBVvUZkZrA2tl03PZpTMADNcHaiIgzaWF yiehFjla3M8mkJsqb76b86qQutzpVrFbiUWPYt6EynLvftG1SI kRuCNB40VDZTm40vGQbdcWplGjZcy6621qBYWUcvfSXSPReGxq XPUnGgkX486dNyNDYVAcWtpUWk ycZOLtHhsZg8T0fiLYhNC3Vddmp3CuDnvroLV6iaOKeNopkDI2 6nUVg4vot8GWkwxaWHiN2X5iuPNhdXE09fbUn6Zmfi9VcdtKIp Eun6RTM7AhrG4I0NATrSrlOuX40tT9iLN5fYY1GL2BFNRx3Btp 2GhwRuSLCtKCPKCTc9p28K02YQOOIhNsxI0uLUZY2TS5ueQosa PnLncgC3Z9fCi5ba3A8agAERqDc2HcNaMqgDq 2rKubUnzoi2W111O1AEBSBejAEaZfZ8ape g35URCbAX8KYEjUgX8hV1QZiRuauqkizAEWqbaiwJ15UAUNzcZ dR 6hyIu7LY8wbHzoubLbbwoEri9tL8aYhDDszHKou3KtCOIqQWfX lwpBJWRyohAUnKDca P1saaWawubWtc27r1GiVjMiqYyRa4GlKkXIvy2tTEVi VwMuy3I1P0aFJGqarJY7kcBoPmKGhplVXQ864GuSJyMxuQdr1f mckH40UHqMjpPoqLE5pMPaKY6/tbv5Htrz EwWMHSZilgdQEtfhvzr3AHGwFqA7jNkUBm5X0HjUFjipeot/wBE/beN9CeHiWIKJMo1/MDRhEBI8ig3NrXOw7qiOEhy87ek/SNsv121ZQEdha4JuTaplFnGOQdYDNeuHpOWnZRAxvvcDhpU5rk FwQQdLUUFkqwUdbQedFADC9swtsR8KohKjQi9rXq6NYG4XvJpg Xy3IJQ3HG 1XA2sb663oSuyKxVczb2va/YKJG6lFLqFLC U2uKYgpXU9YADnVTLZgo3I00NUBLX1uNtTVHex1J tqAJd1zWcLa/jQJJU2KsLnxqJZtbb5tTSsj3Zh5cf/lMBFGdjnMjll2JY/XGj4fNICpkkFxYkOe6urqiML0TGfRsDLMTdmJMhuxtxrUhjVRf U31IJ025bcBXV1AmEZjzqMxrq6pCAYtysLEb3A8yBQ5o1jUKgs Bp7q6upMAEjlQCOXGqnU32PZ3V1dSGQjkSuoOimw8qMrE28a6u oAmwte1S2guDXV1CAlHNgdNavKSFQjc3vXV1MAYdgbgnU2PlUM zG5JO9dXUCAubA20swFqC9yha9iLWrq6mDP//Z

[John C Bush]

Look for a new friend that has slider TS. I asked a local(Urban Hardwoods--Seattle)slab/natural edge table fab co how they got such perfect 45's on the 48"+ wide tables with the waterfall ends and they said it was easy-----With their $40K Martin slider.

[Prashun Patel]

Circular saw and a straight edge or track.
Then shoot the edges with a plane.

I would find some one to lend a dowel jig or domino. It will make the joint strong and will help alignment during clamping and glue up.

[Ken Combs]

Hi all,
I am trying to think through the challenges of executing a coffee table with waterfall edges on the ends (top slab has continuous miter at both ends so that slab flows all the way to the floor). The table needs to be 24-28" wide and I see no way to execute the miter on my cabinet saw even if I use a crosscut sled. I am assuming that the slab thickness would be 1-1/4 to 1-1/2" thickness.

The second question is best means to fix the miter joints. I don't have a Domino. The only way I can think of to add needed strength would be a cleat on the underside screwed to both sides of the joint.

Please share thoughts. I sure don't want to get into the middle of this and find my approach was not sound.

Thanks, Steve

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Maybe something like this:
http://www.mlcswoodworking.com/shopsite_sc/store/html/smarthtml/pages/bit_rabbeting_miter_joint.html
use a good straight edge guide, multiple passes to accommodate the depth. Then use a slotting bit to cut a loose spline groove in the matching flat faces, stopping short of the end so it wouldn't be visible.

From looking at the the pics, I think cutting from the back and creeping up on the depth you could get a good joint on wood up to maybe close to 2 inches. If the flat surface ends up being deep enough, cut a couple of spline grooves.

[Robert LaPlaca]

Look for a new friend that has slider TS. I asked a local(Urban Hardwoods--Seattle)slab/natural edge table fab co how they got such perfect 45's on the 48"+ wide tables with the waterfall ends and they said it was easy-----With their $40K Martin slider.

Indeed, was watching This Old House and Norm was visiting a company in Pennsylvania that makes wood counter tops, for this remodel the kitchen island had a complete waterfall style counter top (your project on steroids) the top was huge. The company cut the miter on their 40K Altendorf slider, in two passes, one heavy cut to establish the bevel, a second was a very light skimming cut.. Miter was reinforced with Domino's..

[Steve Jenkins]

Where are you? There may be someone close with a slider that can help out. I help whenever I can. You can use biscuits to reinforce the miter also. If you use a spline make a special one that is cross grain so you don't inhibit movement in the top and ends

[Joe Adams]

As I recall, several options for reinforcing the waterfall miter joint were discussed in a recent issue of Fine Woodworking.

[Victor Robinson]

As I recall, several options for reinforcing the waterfall miter joint were discussed in a recent issue of Fine Woodworking.

Ah yeah, that was a neat article. It is in #254. The author describes making floating "L-tenons", and I thought particularly interesting was the laminated aluminum and wood option. Basically just 1/8" aluminum angle attached to wood with polyurethane glue. Seems like they would incredibly easy to fabricate. As for strength, a comparison would be interesting as I imagine the weak point is the wood-metal glue joint.

[Lou Ortiz]

Not sure where you're located, but happy to help with the miters and dominos if you're anywhere near DC

[Chris Fournier]

Good mitre joint and two rows of biscuits and you are done. You could certainly make a single use fixture in your TS to cut this with no fuss.

[Sean Troy]

Circular saw and a straight edge or track.
Then shoot the edges with a plane.

I would find some one to lend a dowel jig or domino. It will make the joint strong and will help alignment during clamping and glue up.

This would be the quickest and easiest way to do it.

[lowell holmes]

This sounds like a splendid opportunity to buy a track saw.:)

[Dave Verstraete]

I cut this miter on my tablesaw. I reinforced the miter by drilling dowel holes every 2 inches perpendicular to the miter.
341247

[William Hamilton]

Full-blind dovetails.. muahahaha.. http://www.popularwoodworking.com/techniques/secret-dovetails-for-the-rest-of-us