[ Bad English Warning : This post can include some bad uses of English because of the author's not that great English ability. ]

OK, L&G. I've done some simple modifications on Helicopter Cube. As you might already felt, On Helicopter Cube there are some problems that sometimes jumbled pieces stick out and block some turnings of the puzzle. Hating that problem which is caused whenever I try to get some fun on the puzzle, I came up with some ideas to prevent it.

It's not a serious topic but some simple thoughts of me, which means that I'm not trying to make this idea to real result or something now .



There're two ideas i made. The first one is to cut some part of the pieces out that causes the problem.



It's the puzzle Shape-Modded which now has no problems playing on it.



It might be hard to see, So i highlighted a turning unit.



As you can see, this is Ready-to-be-jumbled state which now doesn't have any problems of the turning.

Edit: This variation also has to change the internal mechanism. The mechanism is in 8th comment.



The second idea is to change the turning surface a little bit.



This is the sketch of the turning surface(if i said it right). I wasn't making it into real working puzzle so I simply sketched just the turning surface. This is pretty much similar design with regular Curvy Copter except that the Parabolic curve doesn't go over the half of the cube which makes the pieces don't get tangled by each other.





The shape of the puzzle. Bunch of alternative designs is able as the curve changes.



This pic shows that now this puzzle doesn't cause the problem because the turning surfaces don't meet each other.



The reason I made the ideas is because I felt so many interruption while playing some jumble moves on the puzzle and I thought So much more abilities will be able to be added to the puzzle when it's eliminated.

Thank you for reading ths topic. Have a great day!

first off you might be interested by This puzzle,

You also may find that the issue with the curvy copter is that the internal mechanism will collide in that state

I thought that the only way to prevent overhang bandaging was to make it a helicopter sphere? I guess you could also make it unbandaged, but unbandaged helicopter cubes still have overhang banadging.

-Doug

Oh, Thanks for teaching me it's called overhanging bandaging

I've checked my designs once more, and i found that making it unbandaged is able on both of the designs with no problem.

They are shaped like Curvy copter plus.

The design like this can barely fix it. But i can't say it'll be stable unless we make it in bigger size.

I don't see it as a problem, I see it as part of the solving challenge.

[Great Phrase Get!]

I respect your mind, Sir.

I think that is why you are called 'puzzle god'.

The problem of pieces colliding when two edges are both turned 90 degrees doesn't happen on a scrambled puzzle. There is never a situation where the jumbling has forced an edge to be at a 90 degree turn. You only have to account for an edge being at the jumble angle and still allowing the edge opposite the face to complete a full 180.

You're right. the 90 degree picture was just a kind of overstatement.

Regular helicopter cube is designed to collide each other in that state even when the external mechanism is free.



in common the red highlighted line goes over the half line according the blue arrow's direction which gives puzzle more stability but causes the colliding problem.



To make it be able to make normal 180 degree turn, when it's designed some part of the center piece is cut out.

But, this cutting was only just for normal turn so it still blocks the edge turning opposite the face.

There are two way I thought out to resolve the issue.

1. Cutting more part to permit the other turn.
└ This would be the easiest idea. But when it's done, so lot of part much than we expacted is cutted out that it could lose most of its support and stability.

2. Using design i posted above.
└The advanced one of it is below.



I just realized the red line of 11.png is allowed to be expanded up to the half-line.







Here you can see the impossible 3-Combo-Jumble move is able in this puzzle





with no collision.

As the design is updated the stability problem also might me solved.

I think that Luke has already managed to do it on a curvy copter. (As well as adding skewb cuts!)

May i ask where to see his work?

You can search for 'curvy copter skewb' on this forum or on youtube.