Pixel Art Coasters

Coasters made using little squares of various hardwoods as the palette for pixel art.

This instructable does two of my favourite things....pixel art, and using up bits of wood that are too small for anything else. It's also worth noting that this is a guide to making quite a lot of coasters, so with Christmas on the horizon this could get a few people off the pressie list.

Please leave a comment if you've got any advice on how this could be done better/easier, and be sure to check out my other projects!

The first step was to gather up off cuts of woods of various colours. I was just using up bits that were too small for anything else and had some beech, oak, iroko, sycamore, mahogany, and walnut.

I aimed to make them around 6mm square as this is as small as my thicknesser can handle. After making them all equal thickness I cut them to width with a little breathing room on my table saw, then a few more passes on the thickenesser to make the sides uniform.

I cut the sticks into bits about 10cm long with a mitre saw.

I needed to make the design/designs as small as possible so I wouldn't end up with oversized coasters. I started a new project in Photoshop with the canvas at a size of 14px x 14ps and set about clicking pixels to shoehorn in some classic Mario sprites. Be sure to be aware of the limitations of your palette, and how much of each colour you've got to work with.

I also made a gluing jig out of some softwood and lined it with plastic. This needed to be a nice snug fit for the sticks with one edge loose so pressure could be clamped in to squeeze out excess glue.

Using Gorilla wood glue on each individual stick I carefully glued up the designs. It's a bit of a race against setting glue here, but don't rush and get pixels in the wrong place!

Once all the pieces were in place I clamped the floating edge of the jig to help squeeze out some of the excess glue. After an hour or so the glue was dry and the solid block could be released from the jig. I had to remove a side from the jig to get the leverage but a bit of mould release spray or something could make this easier.

Now that I had these blocks I had to slice them up. Although it would have been a lot quicker to use the mitre saw I thought that the blade was a bit greedy and I didn't want to lose too much to sawdust, so instead I went with my thinnest bladed saw. I managed to get 7 or 8 coasters out of each block.

They were getting a little delicate at this point so I mounted them on some 3.5mm plywood. Once they were squared up on a mitre trimmer I glued a thin wood edge around each one to frame and protect the coaster.

I made a jig to hold the coasters and set about sanding the face flush with the edging with a belt sander. After doing a few times I found things moved much faster with a bench sander (so no pic).

I did the finishing sand with a random orbit sander loaded with 120g paper.

To finish them off I gave them a few coats of polyurethane varnish and glued some felt onto the bottom. I later peeled this off and went with cork instead which looked way better (sorry no pic again)

I was really pleased with how these came out, and they make great little gift for any gamer friends!

Comment with any tips & tricks on how you would do this, and please be sure to check out my other 'ibles!