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Putting my tools to use - Building a custom dining set

BreeStephany

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Joined
May 19, 2012
Messages
854
Location
Oregon
View media item 88135My finished product, a custom made maple live edge glulam dining room table, high back bench and a live edge bench. My parents are building a new house, so a decided to build them a custom dining room set as an 'early' housewarming present.

View media item 88136The basis of the project is rough cut 2.5" silver or "white" maple which were locally sourced from the boulevards of Missoula, Montana.

I had a good friend I used to work with building houses who is now running their own mill who slabbed them for me. We allowed them to dry for most of the summer after milling before I transported them to my shop and began cutting and planing them down to workable and joinable slabs.

View media item 88137A lot of the slabs were too wide for my planer, in addition to having less than straight live edges, so I went through the assortment of slabs, picked the best 2 slabs for the outside edges and then began selecting slabs and trying to find the best angle to cut the slabs to allow for me to get the most material out of the slab.

I initially used a 2x2 piece of angle iron and a 1x2" piece of tubular steel as a straight edge for cutting, but couldn't get the straight cuts I wanted with either of these so I switched to a 5/8" x 5" piece of pre-finished MDF trim, which worked well as a straightedge and ended up producing much straighter cuts.

View media item 88138I initially was going to cut the slabs with my Bosch mag saw, but after having to cut the slabs before planing, I ended up having to switch with a saw with a little more depth.

My vintage 20A 12" Skil 127 worm drive saw ended up working perfect for the job. It was a little heavier to lug around than the mag saw, weighing in at just over 38lbs, but had PLENTY of power for slicing through the thick maple slabs and giving clean, square, straight cuts.

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View media item 88140A lot of the slabs were less than straight, which made getting straight, clean slabs for laminating a bit more difficult. Many of the slabs had to be cut into multiple smaller width pieces to optimize the number of useful slabs.

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View media item 88142I used a 10" planer and made 1/8" deep cuts on the boards to remove rough marks from milling and to give a clean, smooth surface to both the top and bottom of the boards before final sanding.

To ensure that all of the boards were the same thickness, I planed all of the boards through the planer before changing the depth setting and then repeated the process once I changed the depth.

View media item 88143I ended up having to take off quite a bit of material to get clean, smooth surface on both sides of the slabs.

View media item 88144Start of dry fitting and determining slab order. Some of the slabs had less than perfectly straight cuts, some of which I fixed by running them through the table saw, sanding, or a combination of both to get clean, tight joints between slabs.

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View media item 88146Once the slabs were laid out in order and fitment was where I wanted it, I marked all of the slabs for biscuit joining by marking a center line across adjoining slabs every 10" the length of the slabs.

I then used a biscuit joiner to cut the slot for the biscuits, filled the slots with glue, placed the biscuits and then glued the edge of the slab and joined it to the mating slab and repeated the process.

View media item 88147Clamping of individual slabs

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View media item 88149I made up sets of laminated slabs which were biscuit joined, glued and clamped, allowed to dry and then the larger slabs were joined, clamped and strapped to make the full table width slab.

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View media item 88152I ran all of the slabs long past the desired length of the table. Once the glue dried on the entire table, I used a straight edge and cut the table to the desired length. This allowed for a much more uniform, straight edge than I would have got from cutting the slabs to desired length before joining.

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View media item 88155Once I cut the slab to the desired length, I biscuit joined a 2x2 maple section perpendicular to the individual boards and joined each board into the 2x2 with biscuits. This will control any contraction of the individual slabs from one another if they had not yet completely dried at the point of building.

View media item 88156The table was too long to use any of the clamps I had available, so I used a set of straps to clamp the end sections to the primary slab.

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View media item 88160I used a grinder with a sanding disc to grind and sand the 2x2 ends to match the live edges of the table and essentially make a faux live edge.

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View media item 88162All sanded and ready for top coat. I decided to use a heat resistant bartop epoxy, DesignCrete Super Clear top coat, to coat the top of the table top, primarily because I was concerned with the finish, shall someone decide to set a hot dish on the table.

The heat resistant bartop epoxy would prevent yellowing or otherwise changing colors shall something hot be placed on it. The epoxy also helped fill a lot of small cracks, knots and other small inconsistencies in the surface of the table top.

View media item 88163I wanted to make mission style legs for the table, but given the weight of the table top, weighing in at over 200lbs, I opted to give it a bit of an industrial flare and constructed the legs for both the table and the bench out of 10ga 1x2" tubular steel.

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View media item 88165Prepping for welding.

After cutting, I ground the edges of all of the tubes flat and clean to allow for clean, tight joinery throughout.

View media item 88166I laid the top and bottom horizontal sections of the legs and marked them for the vertical pieces, then marked the top horizontal sections for drilling so that I could drill the bolt points before welding.

View media item 88167All tacked up.

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View media item 88169All welded, ground, polished and ready for paint.

I wanted all of the straight and outside edge joinery points to be flat and clean, so I ground down all of the welds and then used a sanding disc on a grinder to give a clean, flat, even surface throughout.

I left all of the inside corner welds to ensure the legs still had sufficient structural integrity.

View media item 88170Polished foot.

Once I had the table and bench legs powder coated, I installed 3/8" rivnuts in the base of each corner of the feet and installed 3/8" threaded thin base Teflon feet to prevent the table or bench legs from scratching the floor.

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View media item 88173I drilled the top of the table legs every 12" throughout so that I could use 5/16" x 2-1/2" GRK RSS structural screws to hold the table top to the table legs.

I know that placing them every 12" was likely in excess for structural purposes, but my hope is that by doing so, the steel structure of the legs will prevent the table top from warping or distorting as it ages.

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View media item 88175Planing of the bench top.

The bench top was too wide to send through my stationary planer, but I did not want to cut it in half, plane it and then rejoin it, so I decided to use my 3" Skil 100 planer to roughly plane the bench down to an even surface and then sanded it smooth with a series of rough to fine grit belts and pads.

View media item 88176Sanded and routed

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View media item 88178I used a router to route in grooves in the bottom of the bench seat for the bench legs to fit into.

View media item 88179Test fitting the bench top to the bench legs.

View media item 88180Positioning and screwing the table legs into the table top.

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View media item 88183Booth seat, table and bench finished and ready to go.

View media item 88184I didn't have a lot of time toward the end of the project to document the construction of the bench seat.

I constructed the bench seat out of 3/4" prefinished maple plywood, which I then dadoed to join all of the sections together.

View media item 88185I used a set of spring-loaded bench seat hinges which were capable of lifting 25lb a piece, which was more than sufficient for the 3/4" seat, 2.5" memory foam and fabric. I made the space under the bench into an enclosed storage space, which cut down on the appearance of clutter under the bench, while providing a pretty decent amount of storage.

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dragginbalz

Well-known member
Joined
Sep 19, 2005
Messages
197
Location
Illinois
It looks awesome, great job! I really like the grain pattern you achieved on the top.

Did you glue those 2x2 end caps on completely? or just in the center to allow the top to expand with humidity changes? I assume you used the biscuits as a type of easy bread board end with wider slots to allow the top to move? Did you drill "sloppy" holes in the metal base to allow movement? It looks like you know what you are doing, but I'd hate to see this beauty crack next summer!
 

LXCam

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Apr 23, 2013
Messages
19,193
Location
AZ
Excellent job, I bet your folks are very proud of those and you.
 
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BreeStephany

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Joined
May 19, 2012
Messages
854
Location
Oregon
Did you glue those 2x2 end caps on completely? or just in the center to allow the top to expand with humidity changes? I assume you used the biscuits as a type of easy bread board end with wider slots to allow the top to move? Did you drill "sloppy" holes in the metal base to allow movement? It looks like you know what you are doing, but I'd hate to see this beauty crack next summer!

In retrospect, I know I should have mortise and tenon joined breadboard ends with loose slots for doweling but initially did not plan on putting in ends at all, however, in an attempt to control the edges, I added the 2x2s to control some slight warpage on some of the slabs. I did make the biscuit slots much larger than usual to allow for some movement, but as you said, it is possible that it still may crack as it continues to dry and as humidity changes.

My hope is that I provided enough 'slop' in the biscuit joints on the end that there is a enough play to allow the slabs to shift over time without cracking.

I guess we shall see.
 
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BreeStephany

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Joined
May 19, 2012
Messages
854
Location
Oregon
Can you tell more about the epoxy you used on the top please?

The bar top epoxy I used was DesignCrete Super Clear top coat epoxy. Its a little expensive at $220 for a gallon of epoxy and a gallon of hardener, but it is said to be heat resistant and can be used on a variety of surfaces.

The epoxy is primarily used for coating concrete countertops but makes for a very nice, high gloss finish on wood countertops and table tops as well.

Once mixed, you can use a lint free roller to spread the epoxy and push the epoxy into the knots, cracks and other inconsistencies on the surface, then use a heat gun to draw air bubbles out of the epoxy as it cures.
 
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matt_i

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Joined
Mar 14, 2008
Messages
10,741
Location
SE Michigan
Nice job! A lot of steps in that process. :thumbup: Its been a long time since I planed any wood but recall the mountain of chips that it makes :D
 

Marctrees

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Joined
Mar 5, 2015
Messages
6,265
Location
TX/LA border - Toledo Bend
It looks awesome, great job! I really like the grain pattern you achieved on the top.

Did you glue those 2x2 end caps on completely? or just in the center to allow the top to expand with humidity changes? I assume you used the biscuits as a type of easy bread board end with wider slots to allow the top to move? Did you drill "sloppy" holes in the metal base to allow movement? It looks like you know what you are doing, but I'd hate to see this beauty crack next summer!

Excellent work, excellent documentation.......

WAYYYY better than average....

But,...

dragginbalz has pointed out the two major errors.

Wood movement cannot be successfully restrained.

We all learn, and you have done AWESOME work...

But be prepared for some future level of problems on these two issues.

Both the primary no no's in the world of Table making.


Top cannot be fully restrained by frame underneath......

And cross to long grain solid fastening usually, very often, depending, has future complications.

You can easily STILL solve the mounting issue...

Drill notably oversized holes in the steel, then re install your screws w fender washers under head,...

And only slightly snug down screws.

NOT tight.

Like if you used #10 screws, I would drill at least 3/8 holes.

Now, your top will be able to freely move.

The ends you glued on, no easy fix other than I strongly suggest you Google wood movement, then consider cutting off the end pieces.

Beautiful Job !!

Marc
 

Marctrees

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Messages
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Location
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OK, now I see - "I drilled the top of the table legs every 12" throughout so that I could use 5/16" x 2-1/2" GRK RSS structural screws to hold the table top to the table legs.

I know that placing them every 12" was likely in excess for structural purposes, but my hope is that by doing so, the steel structure of the legs will prevent the table top from warping or distorting as it ages."

GRK RSS are very nice.

Yes, they WILL help keep table flat, but I would ream out holes in steel to like 9/16 and add the washers as said, OR, I can virtually guarantee you WILL have trouble down the road w cracking.

Marc
 
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