Introduction: Chesapeake Bay Coffee Table

Being from the Chesapeake Bay area and a fan of maps, I made a to scale, topographic map of the Chesapeake Bay, and then made it into a coffee table.

With cad software you can scale this down or up to engrave onto almost anything. You could also do another region.

Materials used

Lumber- I used 2x12 Pine, it would be better to use Oak or Walnut or anything other than Pine.

Wood Glue


Bar Clamps

Rhino (or any other drafting software)

CNC machine

Sand Paper



1" Black Pipe

1" Pipe Flanges


Tempered Glass

Step 1: Build Your Table

So I used 2x12 Pine I got from Lowe's. Now, if I were to do this again, I would go to a lumber yard and pick out Oak or Cherry or a nicer lumber. But alas, it worked and was easy to obtain, it's just not as pretty.

Cut your lumber to size and sand it down. Next biscuit it together using biscuits and a biscuit joiner and of course wood glue.

Bar clamp it across the top and bottom for two hours until the glue is cured.

I used a glass top on my table and purchased it first and cut my table top to match. I suggest doing this. Otherwise it will be harder to get a piece of glass to match your custom table top.

Step 2: Draft Your Map

Here's that hard part.

I used satellite images and Coast Guard maps to draft my map as accurately as possible. Everything's online, especially google maps.

Depending on your thickness, decide how many layers you need.

My table was 1 1/2" thick and had 5 different layers. My Z scale was for every 3/16" of an inch depth cut into the table equalled 10' in the Bay.

My X,Y scale ended up being 1":22,000'

I made it so anywhere in the table that was 80' deep or deeper, was cut through all the way and you can see to the floor below.

Depending on your software for your CNC machine, you may need to alter how you draft your topographic map. I used Rhino and Torchmate.

Step 3: Milling the Map

Plug and play!

Send your cad file into your CNC software and make all adjustments as needed depending on your table thickness, layer depths, and your router.

Then watch it cut. It's always smart to stay in the room and watch the entire cut in case the program faults or the bit slips. My cut took 7 hours.

After it's done, take it out and sand down any rough places.

Step 4: Stain and Seal

Choose a stain you like and apply a few coats.

Do the same with a sealant.

You may want to mess around with painting the inside to look like water or fill it with resin.

Step 5: Add Some Legs, and Enjoy

You can choose whatever style leg you want. For my apartment I liked the black pipe style. It's easy to get from Lowe's or Home Depot.

You can get one long piece of pipe and have the employees at the store cut it to length and even thread it. Don't forget to get four flanges to match.

Simply screw the flanges into the underside where you want the legs, then thread the pipe into the flange.

Put the glass back on top, now enjoy your sweet new table. Invite some friends over and have them start picking out where they live or vacation on your table.


RoguePirin made it!(author)2017-01-12

Congratulations on the win in the Tables and Desks contest! Your table was my wife's favorite entry.

Scenic+Sauthoff made it!(author)2017-01-12

Thanks so much, glad she liked it!

linda.moberg.37 made it!(author)2017-01-08

So beautiful! We are from Glen Burnie, MD and my father-in-law had a small boat and he would often take the kids and hubby when we were visiting (we were Army so didn't get to spend as much time up home as we would like) and go out on the Chesapeake Bay. I am not much of a boater, but we did visit the area often as well. Love it and good luck!

doing2much made it!(author)2016-12-16

You got my vote!

rybitski made it!(author)2016-11-17

This idea could be really cool if you take a thin layer of darker wood and laminate it on top before doing the routing (even just a 1/8" veneer). This would give a more dynamic range to the land vs the bay.

Good work. What scene shop are you working out of?

SherylinRM made it!(author)2016-11-19

Read what you said and got the thought that this would look great if done in plywood.

Like a bunch of laminates.

Anyhow. GREAT idea here. Love the way it turned out :)

Scenic+Sauthoff made it!(author)2016-11-17

Thanks, Right now I'm a graduate student at Ohio Unviersity.

rybitski made it!(author)2016-11-17

Ahhhh, tell Dan-Mike and Vince hello.

jerryjaksha made it!(author)2016-11-17

Nice art piece. Great use for the cnc.

Can you explain how you got vector files from the maps? Do you find vector elevation maps on the web, delete the vectors you don"t need?,

You are sure right about staying around to watch the cut "just in case" .

Scenic+Sauthoff made it!(author)2016-11-18

You can download images form online and import them into a cad program. Then re-scale and alter. You can try to rasterize the image, or just trace over it with the line tool in whichever program you have.

So I drew the actual vector files. Both from importing images and tracing, and referencing on a different screen as I drew them.

MichaelW157 made it!(author)2016-11-18

The only thing I would do different, is maybe an oak border around the table the height of the glass, so the glass won't move, or shift, also it won't chip if a drink glass, hit it's edge, down side,.. if you spill a drink it will end up on the inside....

MarkH442 made it!(author)2016-11-17

That is such an excellent idea. I am so adapting this!

kribinsky made it!(author)2016-11-17

You should fill the bay with resin and take off the glass!

Scenic+Sauthoff made it!(author)2016-11-17

That's the plan. With this one or a second one.

ObxRex made it!(author)2016-11-17

I have a 5 x 10 cnc with lots of downtime to fill. This looks like a great fit. Are you available to consult via phone?

Dark+Solar made it!(author)2016-11-17

That's a pretty sweet table. Next challenge: greater detail. :D

tpobrienjr made it!(author)2016-11-17

Congratulations on a great idea, very well executed.

markb710 made it!(author)2016-11-17

Beautiful job KUDOS!

trgz made it!(author)2016-11-17

Awesome, really very lovely indeed. I've heard of Chesapeake Bay but no idea (other than it's over N America somewhere) but I love maps etc. Marvellous.

mhayden made it!(author)2016-11-17

This is absolutely BEAUTIFUL. I sail the Chesapeake and I am going to have to try to duplicate your fine work. Your effort is beyoind awesome.

calebr13 made it!(author)2016-11-16


Jedi_zombie85 made it!(author)2016-11-15


Diy_ made it!(author)2016-11-14

Yep ongoing to try this, best part I have the glass looking for a project. I love it!

mach1950 made it!(author)2016-11-14


offseid made it!(author)2016-11-14


Proppyquirks made it!(author)2016-11-13

Awwww yisssss

HP_II made it!(author)2016-11-13

Coolest thing I have seen today on the Internet.

KnittersSerendipity made it!(author)2016-11-13

I have spent many happy times on The Bay, Assateague Island.

gm280 made it!(author)2016-11-12

I realize you wanted oak or cherry or any other hard wood for this project. But with the relief cuts in the pine, it doesn't need any other wood grain. In fact the pine may have been the better chose for this project. Other wood grins may have taken attention off the relief cuts. JMHO

bwatt1 made it!(author)2016-11-12

Cool idea.

adenda2 made it!(author)2016-11-12

this is fantastic.

About This Instructable




Bio: Technical theatre artist and designer.
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