This is the World’s first Master Mental Block. Similar puzzles include the Master Skewb, Octex, and Mental BlockVIDEOAUCTION is online! There will be more info and high quality pictures later
Original building topic is here
, so your should be able to find how I made it and such.
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I started with CAD. I made a Master skewb in CAD and then designed extensions for a Master Mental Block. The masters were FDM printed on my high schools $25,000 dimension printer, which hasn't been used for 2 years (I was the first print ever on it)Thanks to Mr. McCalister for printing the pieces. The pieces were then cast from Smoothcast 300 in OOMOO 30 molds, and glued onto a LanLan Master Skewb. I then took a few pictures and made my last post just so I could be the first to do it (because I suspect some other forum members are working on it) Since then however, I have done a lot. First I sanded all of the pieces down so they turn freely. I then filled in the gaps with Miliput Superfine. I then sanded again. And again. And again and again and again. Lots of sanding, in order to get perfect pieces. Once I was satisfied with the shapes and smoothness, I spray painted the puzzle black gloss with Krylon super-gloss. But I was not happy with the result, so I removed the paint (more sanding) and repainted. I then also sprayed a coat of clear enamel to keep the parts protected. Some parts needed touchups, so I used a sharpie for minor touchups on the inside of pieces. The insides of the pieces that rub against each other are a pain to get paint to stay painted, but I think I did a good job. I then assembled the puzzle again and lubricated it. The stickers are hand-cut from Cubesmith Vinyl, except for the 3x3 stickers on the red and orange faces (which just happen to fit perfectly). Overall time spent:
-2 hours CAD
-1 hour setting up, testing, calibrating, and monitoring 3D printer
-2 hours mold making
-8 hours casting pieces
-1 hour gluing extensions
-2 hours sanding
-2 hours filling gaps with Milliput (very time consuming, lots of gaps to fill)
-1 more hour sanding
-1 hours total painting
-3 hours stickeringPuzzle Info:
Turning quality is very good. I dare say that the puzzle turns even better than the one it was made from. It would be easily finger-trickable however the pieces are very solid and some are quite heavy. I will add measurements (size and weight) later. This is the most difficult puzzle that I have. It requires solving a master skewb with the requirement of "center" orientation and also introduces parity on the "corner center" pieces. When scrambled, I can barely even make out the original puzzle. It really is crazy to hold it and turn it into these crazy shapes. No pieces are loose, however the puzzle overall has low tension, which I like but is adjustable.
This puzzle will be up for auction, and it will be the only one that I am selling. I hope I can sell it for at least $300 to cover the cost of supplies and labor. If you are interested, I can give you any more information about the puzzle via PM.
Again, a video will be added soon so you too can witness the quality of the puzzle. It is my proudest puzzle achievement, and I hope you all like it.
Thanks to Tony Fisher for the original Mental Block idea. Thanks to Mr. McCalister for printing the pieces. Thanks to my mom for letting me spray paint in the garage when it was too wet outside.
Again, I hope you like this puzzle, and there is more info to come!
Thanks for watching,
Adam Brown, Puzzle Builder/Modder
Past project: The Geode
Current Project: Replica RPK-74
Future Project: Possibly another master mental
I am now adding dummy cubes to my models to cross the 10% density threshold and save myself money big time.