Troy 3D-Star Troy 3D-Star
Troy 3D-Star Troy 3D-Star
Troy 3D-Star
Troy 3D-Star

Troy 3D-Star

Calvin's Puzzle

  • $14.99




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Product Description

The Troy 3D-Star is a 3x3 shape mod that resembles two pyraminxes fused together. The challenge is understanding how the pieces are supposed to align in the solved state. A very fun and innovative design from Troy Robinson.

Easy Returns!

Not completely satisfied with this product? We accept returns within 4 weeks (28 days) past the delivery date, for either store credit, or a full refund to the payment method — the choice is yours.

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Our Promise to You

All of our products are guaranteed to be free of defects, or we will replace and reship at no cost to you. Please contact us within 4 weeks (28 days) past the delivery date to report any issues with items you have purchased.

Please note that some new cubes when being used for the first few times may experience what is termed a "pop". This is when one or more parts of a puzzle pop out without any damage actually being done to any of the pieces. This also occurs from time to time during normal usage. Pops are typically not considered a defect if the parts which come off can be reassembled by hand.

The corners on 2x2 puzzles should not be twisted as doing so may snap the piece. Damage caused by corner twisting is not considered to be a defect.

Fast & Free Shipping Available!

  • Free standard U.S. shipping (includes Hawaii, Alaska, and AFO/APO) (2-5 business days) is offered for orders with a subtotal of $55.00+. Free expedited shipping (1-3 business days) is offered at $85.00+.
  • All orders are shipped from our New York warehouse.
  • Orders are shipped the same business day they are placed, or the next business day. The cutoff for same day shipping is 3PM EST.
  • There is no processing/handling surcharge — all our shipping rates are at rock-bottom.
For our customers outside the U.S.:
  • We ship to all countries not sanctioned by the U.S. government.
  • We advise that you look into your country's customs laws before ordering.

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Product Specifications
Manufacturer Calvin's Puzzle
Type Shape Mods
Added 2018-10-14
Gross Weight 132g

Customer Reviews

Based on 7 reviews
K. (United States)

It is certainly not a speed solving puzzle, but it’s not bad. It doesn’t catch or anything. That part I honestly expected. What is unexpected is the solve itself. The description of this puzzle claims it is a 3x3 shape mod however, it isn’t just a 3x3 shape mod. Despite having center pieces, it seems to be a common occurrence where I have my last layer center rotated, and everything else solved including my full last layer (excluding the center). Therefore, you must know a center rotation algorithm for this. Also, sometimes I get edge and corner parities exactly like those on a void cube. I’m still uncertain as to why this happens, but I am certain it happens nearly every solve. Aside from that, it’s a fun solve. I recommend it.

Leibniz (United States)
A fun and challenging 3x3 shape mod!

Turns decently, tricky to figure out at first but not too bad, probably about as hard as a mastermorphix. A very cool shape (Stella Octangula) to add to the collection!

John H.
Very cool shape mod

I found the puzzle to be pretty well made. It turns very well once you start solving it. Sometimes it turns a little too well. Occasionally, while turning a piece, another piece from a different layer tried to come along for the ride. I am nit picking, but I want people to be aware of it. I like the puzzle a lot! It is a fun and challenging puzzle to solve. Harder than a Fisher cube, but easier than a blade cube or mastermorphix. I highly recommend this puzzle.

Evan D. (United States)
Pretty Nice!

This star cube is very nice and turns very well, other than some lockups because of the many pieces. Overall, very fun, but not a single video on YouTube of how to solve it.

Robert H. (United States)
Unique design that needs improvement

Although it turns smoothly out-of-the-box, it will often lock-up (or turn the wrong axis) if not properly aligned. I like the colorful high-quality stickers, but there are only 4 colors (for 24-sided polyhedron)! In my opinion, it should have at least 8 colors. The way it is colored, every "edge" piece is duplicated twice, so there are FEWER combinations than a standard 3x3 cube's edges. Unlike a standard 3x3 cube, the orientation of the center blocks DOES matter. I haven't done done the math, but my engineering estimates consider this, overall, to be nearly as difficult as a standard 3x3 cube.

Four of the corner blocks have the same color as the other four corner blocks, but with a different order. For example, if one corner has color Red-Green-Blue, then the opposite corner will have color Red-Blue-Green (when listed clockwise beginning with Red). I guess the puzzle designer wanted to confuse people with color-order (and save money on sticker colors)?

More importantly than color, the middle/slice layers are too thin. Not only does this make facet stickers small (especially at the "centers"), it makes manipulating the puzzle with "slice" moves difficult at best -- totally impossible for speed-solving. From my engineering background, I see no reason why the middle layers couldn't be thicker. Such a change would ALSO make the puzzle more aesthetically beautiful! (Currently the corners are "thicker", but expanding the middle layers by just a bit would make them all symmetrical!)

In summary: this is a very unique-looking puzzle, but design choices reduce # of combinations (easier than expected) and frustrate playing (skinny middle layers and lock-ups). I can only recommend it for a collector.

Gina (United States)
Fun! Moderately challenging.

I solve using beginner's 3x3 method. Can be challenging to follow the colors. The centers of the middle layer rotate, and must be rotated properly during the first layer (similar to the windmill cube). Definitely a fun puzzle! I recommend it.

Truly Difficult

I love this puzzle, I was making good headway on a solve but I then noticed the center/base of the triangles. Uh-oh's. Back to the beginning.
This puzzle is a lot of fun.
I'm pleased that the quality of the puzzle over all is so high. Well worth the investment. OOTB, I was more focused on the appearance, weight and shape.
This is so difficult though, I'd give this an 9 out of 10. (And I've solved a Morph Egg)
This looks better when solved, which is reason enough to solve this one.
If you enjoy a solve that requires some planned moves, for example a RediCube or PetalsCube, this is the next step up.
I love it in my collection.