50 shades of grey free download were to change the size of laser cut 3d puzzle free download joints over others you could end up with a slight puzzle box but more importantly something that couldn't be assembled wrongly. This pentomino puzzle was one of the first I ever remember receiving.">
Where the tiles overlap the surfaces have been engraved, this reduces the thickness of the material and makes it slide easily in the gaps. The edge of the puzzle also have 3 layers which is staggered in a similar fashion. The edge is backed like the other tray puzzles and this stops the pieces from falling out of the middle. The edge is a single solid piece, because of this the last row of blocks has to be glued into place inside the puzzle so be careful not to spread the glue outside the block or it won't slide correctly.
Because this puzzle is just a series of blocks it could be expanded to any dimension and size you requires. I made this from 3mm poplar ply wood which makes it very easy to have a deep engrave.
This byte puzzle box made for an altogether different kind of slide puzzle. The notches on the top of the box are free to slide up or down and will lock or unlock the box. The box is made from sturdy 6mm plywood so it can withstand a bit of forcing but it was skinned in 0.
Like most combination locks it can be opened with a bit of force applied in the right direction, some of the pins are stickier than others so you know which side is locked and which is unlocked and by pulling the lid to one side while you do this you can make some pins sticky. With a bit of practice you can find all eight pin positions in a matter of minutes. I however cheated and marked the side of the lid in very faint pencil. I really want to make this laser cut cryptex that I found on instructables with my own improvement but I ran out of time, it's still a really cool item though so even though this page is redundant I wanted to leave it here and who knows next time you check out this instructable I may well have populated this step with my own reworking of it.
There is a whole category of puzzles devoted to getting things untangled from each other, these usually involve holes and string and hoops and beads. The trick is that the hoop is never really on the string in the first place and by carefully moving things around you can free the various parts required to solve the puzzle. These puzzles were made specifically for this instructable competition and were inspired by some of the other puzzles being entered.
The first puzzle is a classic, again something you would find in Christmas crackers to pass away the hours waiting for the turkey to go down. The two pieces are entangled by their strings and form complete loops which can't be separated.
Except they don't really, the string can be fed through the hole and over the disk. When you pull it back through the hole the two parts are separated or double looped if you went the wrong way. The string is captured in the material by using 3 layers of wood and sandwiching it together over a knot. Puzzle 2, the hoop is on one loop of the string and the goal is to move it over to the other side. It's a simple puzzle and if you just start winding the hoop along the string in the right direction it quickly becomes apparent how to make it jump from one side to the next.
Puzzle 3 requires you to free the hoop from the bottom of the tower. Note how the hoop isn't actually entangled in the string. You'll also note that the bead is able to fit through the hoop and the disks can fit through the tower.
With a little bit of fiddling the hoop can be freed easily. I first cut these cube puzzles 4. In fact it was easier for me to download the files from my own site that it was for me to find them on my hard drive. I took the opportunity to freshen up the images and to recut them in 6mm ply. Many laser cut boxes are made using finger joints in a very similar manor to this.
I think it's something that is often overlooked, if the designer were to change the size of some joints over others you could end up with a slight puzzle box but more importantly something that couldn't be assembled wrongly. This could be very useful if you were producing kits with multiple sides that look the same but are subtly different.
This puzzle is one of my favourites. Not all puzzles are flat but this one forms a very sculptural shape. This puzzle looks great on display and it's not surprising because it has artistic heritage.
MC Escher drew one in his lithograph ' Gravitation '. The ends of each star were given tight fitting finger joints so the whole puzzle can hold together without any glue. The puzzle is in assembling it correctly. There are 12 identical parts which all click together.