Then I set up the dovetail jig, testing and tweaking it with some offcuts until the joints are coming out just right. I chose to use 6mm dovetails.
Although dovetails are a bit over the top, you can get away with just rebating each edge 6mm and doing a rabbit joint with some pins, glue, and plenty of clamps.
Then a long day of cutting joints! Make sure you’re fully covered in your PPE, as this stage is very dusty…and MDF dust is nasty stuff.
I used “Resintite” wood glue. Just use plenty of clamps and keep checking everything’s square.
For the more complicated shapes you’ll want to do the gluing in a few phases. Maybe make a jig to help you along too.
You’ll have a little bit of play in the joints before you put the back panels on, but it can’t hurt to get em as accurate as possible now.
I scraped the glue on the inside joints off now, as sanding it off later would have been a nightmare.
Simply cut the back panels to fit each piece.
I measured the channels on each block and copied it onto some 3mm MDF using squares and suchlike. Get it as square and accurate as possible as the back panels will hold it in shape.
3mm MDF isn’t the toughest material in the world so with a bit of persistence I got through it with a knife & a straight edge.
Then I glued them in place, wiping the glue off the inside
Once that was dry I rubbed in a good amount of filler, and it all got a good sanding (use a dust mask).
Before painting I gave each surface a wipe with damp cloth to get the dust off.
Then I gave each block a couple of coats of primer, sanding with 240grit after each coat.
I went for the “Tetris worlds” colour scheme…as all the other versions have a magenta (pink!) block. I thought I’d give spray paint a chance as I found it hard to get a smooth finish with brushes on my first set.
Basically….spray at about 6inches & perpendicular to the surface, wear a good quality mask, and it’s better to do lots of thin coats instead of fewer thick coats.
Stack them and there we go! Add more pieces later on until they reach the ceiling! Haha.
And if ever you are moving out, you can easily transport this bookshelf and simply rearrange the blocks to fit your new space.
For those of you who haven’t done a lot of carpentry projects, you will need assistance from those who have more experience. This project will require a bit of precision and advance woodworking tools. But with the advantages it offers, we’re sure it will all be worth it.