Answers.Body: <p>While there could be various approaches building studless the easiest one would be with <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=11203#T=C" rel="noreferrer">Tile, Modified 2 x 2 Inverted</a>. These modified tiles have studs on one side, which fit under bricks and plates, and smooth surface on the other side.</p>
  
  <p><a href="https://i.sstatic.net/C8xpz.png" rel="noreferrer"><img src="https://i.sstatic.net/C8xpz.png" alt="enter image description here"></a></p>
  
  <p>Here is a prototype which features equal 6-stud (or 30 modules) long sides. Parts can be changed upon availability, but it gives the idea how high you need to go to reach 6-stud height. Red parts are modified tiles mentioned above.
  <a href="https://i.sstatic.net/Kq41c.png" rel="noreferrer"><img src="https://i.sstatic.net/Kq41c.png" alt="enter image description here"></a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T12:57:37.413Z
Answers.Text: Excellent. Simple. 2x2 modified, inverted - who knew? Thanks.
Answers.UserDisplayName: Bruce Simonson
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T13:57:18.783Z
Answers.Text: You could also use five normal-height (blue/yellow) layers, and one flat (cyan) layer; the top smooth layer (green) and bottom smooth layer (red) are also 1/3 height, so 1/3 * 3 = 1 (for certain values of 1/3); rather than building up each smooth layer with two flat layers.
Answers.UserDisplayName: Doktor J
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T14:29:11.117Z
Answers.Text: In case with 5 layers of bricks either top or bottom layer must be made entirely of bricks (as example 6 pcs. of 1x6 bricks), not just the edge, to have a place to attach the tiles to.
Answers.UserDisplayName: Alex
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T17:06:36.470Z
Answers.Text: Is that example 6 cubed? Because it *looks* like it's only 5 high. Red-blue-blue, yellow, yellow, yellow, blue-blue-green.
Answers.UserDisplayName: Mast
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T17:17:25.320Z
Answers.Text: Good observation. Well, obvious mistake was made in my previous comment. Picture has 3 layers of bricks and the extra layer I meant has to be 4th, not 5th.
Answers.UserDisplayName: Alex
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T18:20:19.997Z
Answers.Text: I suspect "leaving out" a layer of bricks here makes something closer to an actual cube since the bricks are taller than they are wide.
Answers.UserDisplayName: chicks
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T18:29:42.277Z
Answers.Text: @chicks Could you elaborate please? I cannot really understand your idea of the example in the answer above not being actual cube.
Answers.UserDisplayName: Alex
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T18:39:46.393Z
Answers.Text: Sure.  From https://bricks.stackexchange.com/a/11131/6174 we know that bricks are 7.9mm wide and 9.6mm high.  So 6 bricks wide is 47.4mm.  And 6 bricks high is 57.6mm while 5 bricks high is 48mm, much closer to the 47.4mm width.  And so it is much more cube-like than the question was asking for.  I'm guessing you intuited this and left out the layer since it looked or felt more correct.  Even I'm amazed the math worked out so well for my intuition.
Answers.UserDisplayName: chicks
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T19:08:51.697Z
Answers.Text: Calculation did only account for individual bricks and not the assembly. There's tiny little space exist between two bricks placed side by side. Bricks are also tiny little bit smaller to allow this gap to exist, so you can place and take them apart. Actually, the same question you've linked has top answer which explains that there is such a thing as LEGO Unit, where 1 Lego Unit is 1.6mm, which is used for getting math right and accounts for that gap. 1x1 Brick will be 5x5x6 ratio/unit/module. So 6-studs are 30 units, 5 bricks are also 30 units.
Answers.UserDisplayName: Alex
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-22T19:16:47.560Z
Answers.LastActivityDate: 2020-03-22T19:33:46.280Z
Answers.LastEditDate: 2020-03-22T19:33:46.280Z
Answers.UserDisplayName: Alex
Answers.Body: <p>As mentioned in another answer, there are dedicated pieces for this now.</p>
  
  <p>But... 6x6x6 cube is plenty big enough to have a stud-reversing construction inside, then the bottom can be a simple 6x6 plate with regular smooth tiles.</p>
  
  <p>For example put some of these inside the cube: <img src="https://i.sstatic.net/9scUh.png" alt="take a lamp holder brick and put plates studs-out on the round part"></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T12:58:53.983Z
Answers.Text: Excellent. Clever. Hidden design, love it. Thanks.
Answers.UserDisplayName: Bruce Simonson
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T10:03:06.543Z
Answers.LastActivityDate: 2020-03-23T10:03:06.543Z
Answers.UserDisplayName: ProbodyneHecs
Answers.Body: <p>Your question sparked an idea of making a completely symmetrical 6x6x6 cube with the same tile on each face.</p>
  
  <p>This is what I came up with:</p>
  
  <p><a href="https://i.sstatic.net/lp9ju.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/lp9ju.png" alt="6x6x6 tile"></a> 
  <a href="https://i.sstatic.net/HITEH.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/HITEH.png" alt="6x6x6 tile exploded"></a></p>
  
  <p>The LDCad file is <a href="https://raw.githubusercontent.com/dsoze1138/LDCad_cube_6x6x6/master/6x6x6_tile.ldr" rel="nofollow noreferrer">here</a>.</p>
  
  <p>Parts list:
  6x-<a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=10202" rel="nofollow noreferrer">10202</a>, 8x-<a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=26604" rel="nofollow noreferrer">26604</a>, 8x-<a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=30414" rel="nofollow noreferrer">30414</a>, 2x-<a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=3958" rel="nofollow noreferrer">3958</a></p>
  
  <p>I used only parts available in LDCad version 1.6b</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-26T12:28:58.120Z
Answers.Text: As far as I know LDCad installation does not include LDraw parts. LDraw parts library is an independent product and is not tied to any of LDCad versions.
Answers.UserDisplayName: Alex
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-27T07:21:16.643Z
Answers.Text: I am new with the tools so thanks for letting me know that LDCad uses a common parts library. With other tools I have used it was important to know the version used to create the assembly.
Answers.UserDisplayName: Dan1138
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-02T11:04:46.517Z
Answers.Text: Can you please add a picture that shows the red and yellow pieces? Thank you!
Answers.UserDisplayName: Metalbeard
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-26T01:38:25.347Z
Answers.LastActivityDate: 2020-04-02T18:23:33.183Z
Answers.LastEditDate: 2020-04-02T18:23:33.183Z
Answers.UserDisplayName: Dan1138
Answers.Body: <p>I had a whole bunch of pieces that were flat, 2x2 with studs on both sides.  They were not actually LEGOs but some knock-off brand - I want to say Tyco?  Not sure, it's been a while, but it was 100% compatible.  I used them for this sort of thing all the time.  It annoyed me that there weren't any official LEGO pieces that served this purpose at the time, but the off-brand ones worked well enough.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T15:52:11.267Z
Answers.Text: You're right.  I remember TYCO having these as a kid.  I know for a fact that knock-off maker Ausini has these 2 x 2 plates with inverted studs.  it's in their instructions [here](https://bricks.stackexchange.com/questions/10890/where-is-an-instruction-sheet-for-ausini-set-25418-guitar)
Answers.UserDisplayName: Rin Rio-Oki
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T17:47:07.183Z
Answers.Text: Now that I think about it, this set also had the reverse - square 2x2 pieces with holes on both sides so that you could insert two pieces with stubs facing each other.  basically of the female-female adapters if the double-stud piece was male-male.  Not really relevant to this question, but another notable lack in the base LEGO pieces at the time.  (Not sure if they've added them since?)
Answers.UserDisplayName: Darrel Hoffman
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-03-23T13:31:39.063Z
Answers.LastActivityDate: 2020-03-23T13:31:39.063Z
Answers.UserDisplayName: Darrel Hoffman
Body: <p>Adult, returning to Legoland and the world of LEGO.</p>
  
  <p>I'm interested in building a static 6x6x6 cube that is smooth on all six sides. I can see how to get the top smooth, using an appropriate build up with blocks and plates, and capped with smooth tiles. </p>
  
  <p>The sides are easy, of course, just being the sides of blocks and other pieces.</p>
  
  <p>But what about the bottom? What works for reversing the studs, so that smooth tiles can be used for the final finish on the bottom?</p>
  
  <p>I would like the final build to be rock solid, exactly 6x6x6 -- no movement like a rubik's cube needed at all.</p>
  
  <p>Just interested in best techniques for a smooth bottom, before I order parts for my bigger build. Want to limit pieces to standard blocks, plates, and smooth tiles.</p>
  
  <p>Suggestions, threads to review, links to solutions?</p>
  
  <p>PS: Sorry I couldn't post tags like: "6x6x6 cube tiles smooth"; suggestions welcome.</p>
  
Tags: <design><piece-usage>
Title: 6x6x6 cube with smooth plates on bottom?
UserDisplayName: Bruce Simonson
ThreadText: # 6x6x6 cube with smooth plates on bottom?
  
  (Asked by: username_0 on 2020-03-22)
  
  Adult, returning to Legoland and the world of LEGO.
  
  I'm interested in building a static 6x6x6 cube that is smooth on all six sides. I can see how to get the top smooth, using an appropriate build up with blocks and plates, and capped with smooth tiles.
  
  The sides are easy, of course, just being the sides of blocks and other pieces.
  
  But what about the bottom? What works for reversing the studs, so that smooth tiles can be used for the final finish on the bottom?
  
  I would like the final build to be rock solid, exactly 6x6x6 -- no movement like a rubik's cube needed at all.
  
  Just interested in best techniques for a smooth bottom, before I order parts for my bigger build. Want to limit pieces to standard blocks, plates, and smooth tiles.
  
  Suggestions, threads to review, links to solutions?
  
  PS: Sorry I couldn't post tags like: "6x6x6 cube tiles smooth"; suggestions welcome.
  
  **Tags:** design, piece-usage
  
  ---
  
  ## 4 answers
  
  ### Answer by username_1 on 2020-03-22. Score: 18 | Accepted answer
  
  While there could be various approaches building studless the easiest one would be with [Tile, Modified 2 x 2 Inverted](https://www.bricklink.com/v2/catalog/catalogitem.page?P=11203#T=C). These modified tiles have studs on one side, which fit under bricks and plates, and smooth surface on the other side.
  
  [![enter image description here](https://i.sstatic.net/C8xpz.png)](https://i.sstatic.net/C8xpz.png)
  
  Here is a prototype which features equal 6-stud (or 30 modules) long sides. Parts can be changed upon availability, but it gives the idea how high you need to go to reach 6-stud height. Red parts are modified tiles mentioned above.
  [![enter image description here](https://i.sstatic.net/Kq41c.png)](https://i.sstatic.net/Kq41c.png)
  
  > **Comments:**
  > **username_0**: Excellent. Simple. 2x2 modified, inverted - who knew? Thanks.  
  > **username_2**: You could also use five normal-height (blue/yellow) layers, and one flat (cyan) layer; the top smooth layer (green) and bottom smooth layer (red) are also 1/3 height, so 1/3 * 3 = 1 (for certain values of 1/3); rather than building up each smooth layer with two flat layers.  
  > **username_1**: In case with 5 layers of bricks either top or bottom layer must be made entirely of bricks (as example 6 pcs. of 1x6 bricks), not just the edge, to have a place to attach the tiles to.  
  > **username_3**: Is that example 6 cubed? Because it *looks* like it's only 5 high. Red-blue-blue, yellow, yellow, yellow, blue-blue-green.  
  > **username_1**: Good observation. Well, obvious mistake was made in my previous comment. Picture has 3 layers of bricks and the extra layer I meant has to be 4th, not 5th.  
  > **username_4**: I suspect "leaving out" a layer of bricks here makes something closer to an actual cube since the bricks are taller than they are wide.  
  > **username_1**: @chicks Could you elaborate please? I cannot really understand your idea of the example in the answer above not being actual cube.  
  > **username_4**: Sure.  From https://bricks.stackexchange.com/a/11131/6174 we know that bricks are 7.9mm wide and 9.6mm high.  So 6 bricks wide is 47.4mm.  And 6 bricks high is 57.6mm while 5 bricks high is 48mm, much closer to the 47.4mm width.  And so it is much more cube-like than the question was asking for.  I'm guessing you intuited this and left out the layer since it looked or felt more correct.  Even I'm amazed the math worked out so well for my intuition.  
  > **username_1**: Calculation did only account for individual bricks and not the assembly. There's tiny little space exist between two bricks placed side by side. Bricks are also tiny little bit smaller to allow this gap to exist, so you can place and take them apart. Actually, the same question you've linked has top answer which explains that there is such a thing as LEGO Unit, where 1 Lego Unit is 1.6mm, which is used for getting math right and accounts for that gap. 1x1 Brick will be 5x5x6 ratio/unit/module. So 6-studs are 30 units, 5 bricks are also 30 units.  
  
  ---
  
  ### Answer by username_5 on 2020-03-23. Score: 12
  
  As mentioned in another answer, there are dedicated pieces for this now.
  
  But... 6x6x6 cube is plenty big enough to have a stud-reversing construction inside, then the bottom can be a simple 6x6 plate with regular smooth tiles.
  
  For example put some of these inside the cube: ![take a lamp holder brick and put plates studs-out on the round part](https://i.sstatic.net/9scUh.png)
  
  > **Comments:**
  > **username_0**: Excellent. Clever. Hidden design, love it. Thanks.  
  
  ---
  
  ### Answer by username_6 on 2020-03-26. Score: 5
  
  Your question sparked an idea of making a completely symmetrical 6x6x6 cube with the same tile on each face.
  
  This is what I came up with:
  
  [![6x6x6 tile](https://i.sstatic.net/lp9ju.png)](https://i.sstatic.net/lp9ju.png)
  [![6x6x6 tile exploded](https://i.sstatic.net/HITEH.png)](https://i.sstatic.net/HITEH.png)
  
  The LDCad file is [here](https://raw.githubusercontent.com/dsoze1138/LDCad_cube_6x6x6/master/6x6x6_tile.ldr).
  
  Parts list:
  6x-[10202](https://www.bricklink.com/v2/catalog/catalogitem.page?P=10202), 8x-[26604](https://www.bricklink.com/v2/catalog/catalogitem.page?P=26604), 8x-[30414](https://www.bricklink.com/v2/catalog/catalogitem.page?P=30414), 2x-[3958](https://www.bricklink.com/v2/catalog/catalogitem.page?P=3958)
  
  I used only parts available in LDCad version 1.6b
  
  > **Comments:**
  > **username_1**: As far as I know LDCad installation does not include LDraw parts. LDraw parts library is an independent product and is not tied to any of LDCad versions.  
  > **username_6**: I am new with the tools so thanks for letting me know that LDCad uses a common parts library. With other tools I have used it was important to know the version used to create the assembly.  
  > **username_7**: Can you please add a picture that shows the red and yellow pieces? Thank you!  
  
  ---
  
  ### Answer by username_8 on 2020-03-23. Score: 2
  
  I had a whole bunch of pieces that were flat, 2x2 with studs on both sides. They were not actually LEGOs but some knock-off brand - I want to say Tyco? Not sure, it's been a while, but it was 100% compatible. I used them for this sort of thing all the time. It annoyed me that there weren't any official LEGO pieces that served this purpose at the time, but the off-brand ones worked well enough.
  
  > **Comments:**
  > **username_9**: You're right.  I remember TYCO having these as a kid.  I know for a fact that knock-off maker Ausini has these 2 x 2 plates with inverted studs.  it's in their instructions [here](https://bricks.stackexchange.com/questions/10890/where-is-an-instruction-sheet-for-ausini-set-25418-guitar)  
  > **username_8**: Now that I think about it, this set also had the reverse - square 2x2 pieces with holes on both sides so that you could insert two pieces with stubs facing each other.  basically of the female-female adapters if the double-stud piece was male-male.  Not really relevant to this question, but another notable lack in the base LEGO pieces at the time.  (Not sure if they've added them since?)  
  
  ---
  
  