A Table Lamp. Inspired by Plant Stands

Table Lamp.  Walnut

This lamp design was inspired by my plant stand design. An evolutionary side branch of that design. Three legs up to a top, but in this case the top is a small platform hub that the light hardware mounts to.  The power cord runs up inside one leg.  The 4" diameter platform has a slight dome on the top, and a bevel on the bottom to meet the legs coming up at an angle. The outer edge bevel matches the slope of the shade.  For this idea I ordered hardware and shades for it from the jungle store. 

Everything I make starts with a drawing.  Sometimes a sketch on a notepad.  Sometimes a digital drawing on my PC. For this lamp an Initial drawing in my CNC software started the process.   My first iteration was unsatisfactory.  My second try looked better.  Then I added the shape of the shade in the drawing to see the whole composition. Once the shade shape was added and the leg angle adjusted to match the slope on the shade it became time to finalize the details.  

Top Hub

Making the top hub took a 2-sided CNC job and some contemplation on how to hold the part down to be cut. The bottom beveled side cut first didn't cut through as intended.  The top side curve also didn't cut through.  Then I bolted the part down through the center as I knew the final perimeter beveled edge would cut through.   The mistake I made was not cutting away the outer waste before starting that final cut.  On the last pass before breaking out the waste came loose and caused interference with the spinning bit path. There are  two flaws now left on the edge. When I make another one I know better now how to prevent that from happening. First attempt at any challenging part cut always has potential to show where the setup for it could be improved.  That was the case with this part.  I initially thought this could be done on my radial axis.  Holding it so it wouldn't spin was the challenge I couldn't resolve. One side would have been easy.  It is the second side that is always the challenge.  This is my first prototype. There will be another lamp, version 2. 

I used walnut for the dowel legs.  I found scraps I could make 3 legs from. One leg was made from two halves, so that a slot for the cable can run through it.  

Cable Slots

I had to round over the two legs halves before screwing them together with the cable in place.  Cutting the notched tenon on the end was simple using my fixture on my CNC bed.  I put one wood screw through to hold the bottom end together, and I know that when slipped into the mortise the top end will stay together.  This allowed me to cut the notched tenon on the top without dealing with the cable.

Screw holds the bottom end together.

Hardware for table lamps is easy to find and relatively inexpensive.  There are usually two ways to mount a shade.  One is to screw it onto a harp that surrounds the bulb and provide a place to mount the shade.  The second is to clip onto the bulb.  Clip-on hardware is available to work with shades that expect a harp to mount to.   A cord with a plug on the end and a socket for the bulb is included. The socket has a 3-way switch, although kits can be found with a simpler on/off switch, a pull chain switch, or no switch at all.  The shades did come with a clip on option and the option to not use it. 

Light On. Dome top of hub bounces light out into the room. 

I bought some antique looking bulbs that look good enough to stand without a shade over them.  I also have a few incandescent bulbs that won't mind hiding behind a shade and would likely emit more light.   Where the lamp lives may be the deciding factor. The Scenario of Use factor.   

Comments encouraged and welcomed.

4D

Ash and Red Zebra Wood Plant Stand

White Ash and Red Zebra Wood

Among the scraps of wood in my garage I found a nice big block of what looks like white ash wood. It was thick enough and large enough to make another plant stand top from.  Roughly 9" x 9.5", and 1.1875" thick.  

Taller and Wider

A little larger in diameter, and taller than the previous stands I recently made., This stand has three legs made from red zebra scraps I had. They are 3/4" diameter legs rather than the 5/8" dowels used for the previous two stands.  My thought is that if 3 rather than 4 they should be a bit larger to hold up the same weight. Using a little math tells us that four legs 5/8" diameter have a total cross section area of 1.227sq.in..  Three legs that are 3/4" diameter have a total cross section area of 1.325sq.in..  So in theory this little stand should be easily as strong as the two with 4 legs each.  A few other factors come into play, but with similar joinery and nearly the same angle to the floor both should do well. 

Detail continuity:  The radius of the dome shape is simply derived from the maximum useful diameter and thickness of the board used. The center point of the dome arc is also where the legs point to, and the chamfer on the edge also points to the same focus point. There is nothing arbitrary about each design consideration of these plant stands.  Even the length of the legs was determined from the diameter of the top.  They stop right below the edge.  The woods used and the finish applied are the only variables.  

The white ash wood was a bit splintery and chipped out an edge of the top surface.  A scar to remind us of its hard life before becoming a plant stand top. I could "fix" it with a patch, but that may be more obvious than the little chip out.  

I'd love to see a comment or ten with thoughts on what these should sell for.  There is about $20 of wood and finish in each one. 

4D

   

A Cherry and Walnut Plant Stand

Next Project. What wood do I have enough of to make something useful out of?   

1. Cherry.  Thick board found.  I can make a new plant stand with cherry as the top and walnut as the legs. 

2. Walnut.  5/8"diameter dowel legs.

Now there are two.

I like small simple projects such as this plant stand.  A simple but interesting top, with a simple set of legs below.  A small amount of material is needed. My CNC is already set up to cut the top and has a fixture ready to cut the tenons on the leg tops.  When done with those tenons the fixture can be reconfigured to hold the top to cut the mortises for the legs. 

I had a thought about mass production.  I could move the setup for cutting tenons to a different area on the CNC, and leave the angle jig set up for cutting the angled mortises on the top. Use G-code and 3 post processors so it will remember 3 home positions.  No, I don't have any plans to mass produce this plant stand.  A worthwhile mental exercise though. Readying  and clamping down the block for the top so it's center is always in the same place is a challenge to overcome. Blocks would all have to be the same overall dimension. 

The block of cherry wood was marked and clamped to the bed of my CNC.   Toolpaths for rough cut and finish cuts were created.   This top is cut from one solid piece.  While being rough cut it pointed out that the bit I was using was very dull.  The smell of burning cherry wood isn't horrible, but the smoke created persisted far too long.  That dull bit was thrown away. 

A lower point of view.

With walnut legs for contrast each part, legs or top, can be appreciated separately.  A bit more visually interesting than the monochrome stance if legs matched the top.  A design consideration I coined is "scenario of use".  Will a simpler plant stand all made of the same wood look best among the other things in the same room or space it ends up in?  Or perhaps the two woods/two colors both compose well among other things they share space with. 

Comments are welcomed. Self promoting ads aren't. 

4D

A Delicate Tea Table

Hard Maple

This maple tea table was inspired by a metal version I found on the web.  

I remembered I had a maple panel.  It was a bit thicker than 3/4".  19" x 14".  Room enough to cut four 3" strips from that were 19" long. Glued them together to make a 3" x 3" x 19" block I used to make the center post from:

Center post 

Mounted on my radial axis. First step was to turn the square block into a 3" cylinder. 

18 inches of 3"d cylinder

Then the roughing cut, which pointed out a few flaws in my setup. The square section left next to the 3-jaw chuck didn't care to run into the router chuck as it created a burning smell and left the router chuck black with carbon. 

I made a finish pass down the cylinder to cut the desired shape.  A few visible flaws left from the roughing cut that went haywire. I took the post from the CNC out to my garage lathe to clean up and sand. 

For the base I glued up some maple boards.  They were a bit thinner than 1.5" thick. When the glue was dry I scraped off what squeezed out, then used my drum sander to clean off and flatten both sides.

Uniformly flat, clamped to my CNC bridges, and getting the bottom cove cut out.

Cove cut.  Almost done.

Board flipped over, new file loaded, and the top surface was cut. Next to the bandsaw to cut off the corners.  After that a trip to my trim router table to flush trim the bottom edge, then round over the bottom edge just a little (1/8"r). 

Base trimmed and cleaned up.  Post trying it on for size.

A good snug fit. 

Next came the top for this table. A thin edge is desired. It would help the structure to be thicker in the middle where the post connects.  Made an intermediate plate that glues and screws to the post, but then can be screwed to the bottom of the table top.  I ordered some 3/4" thick maple strips I can glue up to make the top from. 

Maple to make the top arrived. Strips 2" wide, 3/4" thick, and 16" long. The strips were square and smooth and  ready to glue together. 

Some advice to minimize the chance of bowing after the slats are glued up, is to alternate the end grain curves on each piece. 

Once all the strip are glued together and the surface cleaned up a trip or two through my drum sander smoothed out any offsets and made both sides uniformly parallel to each other. 

Next was clamping the panel down to my CNC and cutting the bottom contour.  The hub was cut first.  Left on the CNC to check that the center post top tenon does fit in the mortise in the center.  Wisely done, as it didn't fit the first time tried.  A new CNC file was made and run to cut the mortise wider.  With fit verified the contour shape was cut.  Then the part was remove from the CNC and cut free from the starting block using my bandsaw. 

The top underside shape took the longest to cut and created a beautiful huge mess of fine maple chips.  

The only deficiency of this design is that from above where most will see it the contours under the top are not visible.

Simple thin edge.

This table will get a maple stain to even out the color of all the board strips. I don't drink tea, so am not sure where this table will end up.  😉

As I study the aesthetic details, the simple top seems naked compared to the post and base below.  My first addition is a 30 degree bevel around the perimeter.  To accomplish that required a fixture with bearings to add to my trim router table fence.

Bearings to keep the edge from getting too close to the bit. 

No room for a bearing to run on the edge. 

Beveled edge.

Comments welcomed and Encouraged!

4D

 

A Walnut and Cherry Wood Plant Stand

Walnut and Cherry

Often a project leaves useful scraps that also could be made into something useful.  That was the case with this simple plant stand. Some walnut salvaged from a previous design was re-configured to become the top. It became an eight inch diameter inverted dome cut from the glued up walnut.   

Walnut Top.  Ready for leg sockets

Lining up with the marked leg socket center

One socket cut.  

Four short sections of 5/8" diameter cherry dowels became legs. Each leg socket is perpendicular to the dome arc. The legs radiate out from the center of the arc. 

Standing up for the first time.

Deciding how simple or complex in detail the legs can be is a worthwhile iterative pursuit.  I've started with a simple cylinder with the bottom cut off to be flush to the surface it stands on. The sockets/mortises have a bump on their perimeter.  The legs ends have a notch to fit around the bump.  The reference orientation is what made it easy to cut the angle on the bottom of the legs as seen in the first photo.  

For detail I could add some plant inspired carving along the length of one or more leg.  I could simply roundover the ends or create more of a bullet shape or pencil tip shape.  I have the dowels connected but not yet glued into the top. It stands up to be observed and inspiring so this decision may be easier. If I do add more detail I'll post an updated photo.  With a plant on top to draw focus this little stand may be happy enough just supporting it rather than competing for attention.  ;)

A version with a cherry top and walnut legs:  Simple Plant Stand

A version with a white ash top and red zebra wood legs: Ash Plant Stand

Comments are welcomed and appreciated. 

4D