I had this idea of making a 3x2x1 cube with added difficulty by making all of its faces turn for a while and maybe some help from you guys since I dont have Solidworks or Alibre here at home. And I'm sorry, I had to use Paint to show you because I cant find usb cable for me to transfer the pictures from my camera but hopefully you'll understand when you see the pictures

Cool idea. I don't see any reasons for it to not work It would be really easy though.

It looks like a good idea, but I have one problem with it.
When you turn it in half lengthwise, wouldn't the face-turning peices on the corners fall out?
Otherwise it looks really good.

They wouldn't fall out if you gave it a click-mech. Is this concept a babyface 1x2x3?

Well yes it is. I guess you can call it a baby face But I just seem to have a problem for the biggest face if you see the cross-section, maybe youll see why.

I see where you're getting at, but it wont fall off because the corner face turn (b) will be within the corner piece as shown here.

The thing you call corner face turning would simply be shrinking down the layers of a 1x2x5, the rest of the face turns I can not really see from the drawings.

I think I fixed the baby faces right but now I have a problem on how will I move a baby face part on the edge piece. Any suggestions?

Well this is a rough idea, thats why I need some help on how I can fix the mech for baby face turning

If you're making it a Baby Face on every side, you could just start with a 3x4x5, couldn't you. Might be a bit on the expensive side though.

I was thinking of making only the 1x2 face and the 3x2 have the baby face. If I were to include the 1x3 face the mech would be pretty hard to make. So I think it better off like that.

Indeed, the 1x3 face is not babyface-able... If you want I can design one tomorrow and share the files here.

Greg

Yes thank you But you might need to find a way to make a baby face piece for the edge piece. I've been thinking how I could solve that.

the 2x3 babyfaces would hook into the 1x2x3 in the same way the 2x1x1 blocks lock into the central 1x1x2
To make this possible though the 2x1x1 blocks would need to have small feet so they do not sit in the way of the much larger feet of the 3x3 babyface.

You can very easily adapt the Olz telescoping mechanism for this puzzle.


Chris Hemerich

Ever think or making a 1x2x5, with very thing outer layers?... That's a babyface 1x2x3

Greg

Ok I'm double posting only because I took 2 hours to make a simple puzzle!!! My record in length (longest)!!

Here's the files. They're ready for shapeways.

If you want to prototype it, go ahead, but please don't sell on shapeways. (You can still make an eBay auction if you want, but only 1 plz).

Greg

Thank you Greg sorry for wasting your time though I was also thinking of making a better mech. I was thinking this all night and thought of putting it down on paper. Here's how it looks...

Trust me, you could take days to make the design in 3D, while my files are ready to go and they use the same mech as my 1x2x5, so it should be stable!

Think on it again, I'd really like to see a BabyFace 1x2x3 in the future.

Greg

I took a look at the files, and I do not think they are ready for 3d printing for several reasons:

1. The pieces are far too thin - 0.8mm on some of the mechanism parts. They may print just fine, but I doubt that they will hold up for more than a few minutes of use.

2. A lot of the pieces don't have fillets, so the puzzle will probably lock up like crazy.

3. In my opinion, this puzzle has way too much tolerance, especially considering its size. Also, tolerance only needs to be added on mechanism parts that fit together, not on all faces. (This post kind of shows it)

I recommend that you do not try to 3d print this puzzle until these issues are fixed.

I am not able to see the files yet because I don't have any CAD programs on my computer, sadly .I may have to wait until my school opens up again so I could see what is wrong in the mech. So for now, I'll hold on to them until then.

1. The pieces on my 1x2x5 are 0.8 mm, so that is not a problem at all. (I did this puzzle according to my 1x2x5)

2. my 1x2x5 never locks up, and here thre were a lot of model operating errors wile filleting, and therefore, half of the mech xwould've been fileted, and the puzzle would've been an irregular mess! (Again, my 1x2x5 isn't filleted and it works very smoothly, and there are no lock-ups)

3. I can change the tolerance and remove 0.2mm on each face if you need, just tell me a number (right now the tolerance is 0.1mm per face 0.2mm between two pieces)

Greg

3.

I guess you could try it, try to remove what you recommended.

While your 1x2x5 did work, it looked very loose and unstable in your video, and I am almost completely sure that making these changes would greatly improve the quality of the puzzle. Also, from what I could see, the hollow pieces don't have a hole in them, so they will be regarded as solid. (See the recent Shapeways blog post regarding the new volume calculation)

Ok I'll change them, but it could take me another hour, wait.

By the way: Shapeways didn't apply the rule yet: proof? --> I made a 6 cm sphere, and when I removed the hole, it cost me 4 cents less!! (the material for the hole I guess

Greg

Edit: There you go!

Thank you Greg and yet again I think I have found a solution as well, the new picture will explain.

The new design still looks flawed.

1. There is still unnecessary tolerance between some faces. The puzzle may work, but it will still be very loose.

2. There are actually two types of corner babyface tiles on the 2x3 faces, and they are mirrored versions of each other. This file only has one type, and therefore the puzzle will be impossible to assemble.

This time, I added some pictures to make myself clearer.

Ok, there are going to be two types of corner baby faces, I forgot about that and for the tolerance gap, is there any way to fill that ? If there isn't, how thick of a gap would there be between the two pieces?

EDIT: I'm using Tomz 1x2x3 puzzle as a guideline, and the cubies are 3/4" by 3/4" by 3/4" I already have this puzzle 3d printed.

This design you're showing us here is exactly the same one that I sent you xD

Why not just use my files?

Yeah, I did make a mistake in the mirror'ed pieces, I'll be correcting that in 2 minutes, and the tolerance is 0.08mm for each face, and it is not much, so just tell me how much I need to remove. I'll already go for another 0.02 and you tell me.

Edit: Corrrrected!!! Now there's 0.06mm removed from each face 0.12 tolerance between 2 faces TOTAL

Greg

P.S: Will, do you have a program that can mirror and move/align Stl's? that is sweeet!! (or did you just make your own copy of my design? ^^)

From what I know, most CAD programs can import STLs as a mesh and do some editing with them, but mostly things like fixing errors or moving the pieces around.

As for the tolerance, maybe I wasn't clear. I wasn't saying that you need less tolerance, I was saying that the face shown in the second picture does not need tolerance on it. The mechanism part should have tolerance, but putting tolerance between faces that don't affect the mechanism is unnecessary, from my experience.

Tolerance between pieces (although quite low here) Allows smoother turning). Than again, I could still try removing tolerance, but I have other projects too, so I can't let this one take all my time, while it could actually work fine 3D printed!

Greg

EDIT: OMG How can I forget this!! Everytime I make a 1x2xn I make it with 1 cm cubies! Tell me if you prefer one with 2cm cubies, coz right now you have a mini puzzle!

Yes adjust it to 2cm and tha'll be the last adjustment. I dont want to delay your other projects you have in mind

Ok here are the 2 cm cubies files. If you need files for a mini, I suggest you use the last mini files I showed.

I just have one last request if you're going to print it: Make a topic, because I'd really like to see how it turned out (I'm confident, but curious )

Greg

I would love to print it too but I'll have to wait until my school term begins again and it is a pretty awful long wait It is until late August.

Neat concept, this idea could even be extended to make a 2x3x5 or maybe even a really crazy (As in mech) 3x3x4.

Who knows, maybe someone will decide to print it before you, because the mini version costs something close or smaller than 30$ (I bet 25, I haven't checked yet )

- Greg

Thant depends, next week I will have $80 at my disposal.

Well I hope you trust my ability to design a puzzle because I would REALLY like to see this one!!!

...Maybe the tiny version costs like 15 $ and the big like 40 $

- Greg

With $80, you could buy anything in my store

I hope this puzzle works. Otherwise Drew11 might be upset about buying a prototype that doesn't work
My store has nothing for sale yet

I probably will order Rfg's design but right now I am going to use my avalible money to order my frustration quartet and the babyfaced 3x3x2. (I know it just sounds crazy and evil)

PS: I wouldn't really be mad if it didn't work, I will have a pretty little paperweight for my desk.

Not one of my "mini" designs have failed so far hahahah

PM6262: are you trying to get people away from my designs?

- Greg

Nope On the fact I have nothing to sell, I don't think Drew11's going to buy anything from me instead of you

I have trust in your designs but it would suck to buy a non working prototype

Yeah, It would , but I'm confident as heck!!

- Greg

Okay, I finally got to print the puzzle at long last! All I have to do is take off the support and sand down the pieces. Pictures will come soon once I get my darn camera working.

i'm excited!

Okay here are the pictures! I have some support left to take out but since my school is the only place to have the solution to dissolve the support, I'm forced to try to chip away piece by piece. Unless you guys know a tip or two to remove soluble support. The pictures are a little foggy because if I take a picture directly at them, it makes a lot of glare so I'm sorry if they look bad.

That looks like it's gonna be pretty hard to assemble!

No it isn't that hard to assemble but some of the pieces need to be sanded down a little since it still feels gritty when I try to "sample" rotate them.

Are those ABS parts with soluble suports? If so wear sturdy gloves and protective glasses if you chip it away by hand. It tends to break away suddenly in sharp-edged pieces.

Stratasys's SST support material is engineered to dissolve in a very hot lye solution, but I don't recommend you try that at home!

Thanks for the tip. I don't have that type of material at home luckily, I know how dangerous it is. But besides of that, does anyone know how I can sand down small and tight areas of a puzzle piece like the Core?