How to turn an old (original) Rubik's into a Lego cube
Step 1: Getting Started / Find a Patient Aka Cube. and Lego Pieces
Flea markets, second hand stores, friends who gave up... there is allways someone, somewhere having an old cube.
I found 2 on a flea market for only about 1,5 €.
Make sure they still turn good and have no damages. If the stickers are gone, don't worry! Thay have to go eventually ;).
For the lego pieces I've used the partnr 3022. Wich is the normal flat 2x2 tile.
You can search on the net or forums to find your needed pieces. You can also contact me if you like to have a 'ready made set'.
Step 2: Taking Apart Your Cube...
There are a lot of video's available on the net of how to do it.
Basically you turn the upper layer 45° and you flip out one of the middle side pieces by using a screwdriver, knive, little spoon...
From there on you just go on by hand. The pieces should come out fairly easy.
Keep the center cross (core) together. Some cubes will have pieces with top lids (not original cubes) wich allows you to tension your cube more or less.
Original cube's don't have this option (Except the latest version 'speedcube')
Once you have all your pieces, you can start off peeling the stickers... this goes normally without problems.
Don't worry about the colors / or wich place the sticker was. It doesn't matter at this point. as we are replacing the complete cube by lego tiles.
You will end up with a stack of all black pieces.
Step 3: Bathing the Pieces / Clean Up / Dry / Assemble Again
Time for a bath!
Trow in your pieces inhot water with some soap. and start cleaning.
I used a soft spunge with a rough side. The rough side was easy to clean up any left glue from the stickers also it sanded a little the surface to glue on. Wich makes the glue attach better.
Dry your pieces, and assemble again. Also on assembly you will find video's and how to's on the net.
Step 4: Glueing Time!
For this step you need to know some stuff about the cube.
If you want the original color scheme, keep a picture or another cube next to you as reference.
Bassically you have WHITE and YELLOW on opposite sides as well as BLUE and GREEN & RED and ORANGE are opposites. Off course you can use wathever scheme you like or any colors you want. As long as they are different from eachother.
Glue: I used some kind of superglue (Cyan acrylate) gel. I prefer the gel, as it dries a little less fast and is also filling up holes. It gives you little more adjusting time ( as far as you can describe 6 sec as 'time' )
Start on a side and then go the opposite. Make sure your Lego tile is in the middle of your black squared base. Any corners sticking out can cause damage or trouble for the cube to work well.
As you see I started with white. Then I did the yellow on opposite side.
As for detail freaks or perfectionists: I made sure all the lego text ( wich is written small on the 'dots' ) faced the same origin. It's just some detail you can add, but this is according to your own wish.
Step 5: Continue and Be Patient
Continue glueing and glueing...
Just keep in mind the colorscheme, or your own scheme.
Important to the perfectionists: Don't toy or play around with while glueing. It might turn some pieces from orientation. wich leaves the Lego logo turned according to the other pieces. (not neccessary if you don't mind the logo direction)
Step 6: Enjoy Your New Puzzle
Now it's time to shuffle that thing and play with it.
Eventually you can add some lube, grease or other stuff to make your cube turn more smooth. Again for this, Google's your best friend.
Have fun and keep up the good work!