Answers.Body: <p>I have an idea which was actually from JKbrickworks. <a href="https://www.youtube.com/watch?v=VpZxTXKQ6C4" rel="nofollow noreferrer">Here is the MOC that uses it</a> and <a href="https://www.youtube.com/watch?v=qTrLNLMI_Ek&amp;t=29s" rel="nofollow noreferrer">here is another MOC of his that uses it</a>.</p>
  <p>Here it is step-by-step:</p>
  <p><a href="https://i.sstatic.net/OpSXl.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/OpSXl.jpg" alt="step" /></a></p>
  <p>First, we have a plain old technic brick.</p>
  <p><a href="https://i.sstatic.net/nsPo5.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/nsPo5.jpg" alt="enter image description here" /></a></p>
  <p>Now there's an axle stuck through it. That connector at the end of it is what I will use as the lever to turn. You can use whatever you want.</p>
  <p><a href="https://i.sstatic.net/ABdp9.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/ABdp9.jpg" alt="enter image description here" /></a></p>
  <p>These connectors on the other end of the axle are supposed to lift the parts up and down, up and down, up and down. Using bigger ones will push them higher, but make sure that their ends are rounded.</p>
  <p><a href="https://i.sstatic.net/jMFLv.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/jMFLv.jpg" alt="enter image description here" /></a></p>
  <p>And obviously, we need to add bushes. But we're still not done!</p>
  <p><a href="https://i.sstatic.net/fwjIw.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/fwjIw.jpg" alt="brickwork" /></a></p>
  <p>Buncha brickwork...</p>
  <p><a href="https://i.sstatic.net/HuVZc.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/HuVZc.jpg" alt="rr" /></a></p>
  <p>A 1x1 studded beam was added so that we can loosely hold a beam up above.</p>
  <p><a href="https://i.sstatic.net/qRFHE.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/qRFHE.jpg" alt="rr" /></a></p>
  <p>A non-friction pin is added.</p>
  <p><a href="https://i.sstatic.net/kXBG4.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/kXBG4.jpg" alt="rr" /></a></p>
  <p>A 1x5 beam was added, but I should actually use a 1x6 beam instead, which is fixed in the next images. What's the beam even doing here anyway? It's going to act as a guide for the axles that will sit above it.</p>
  <p><a href="https://i.sstatic.net/AGycM.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/AGycM.jpg" alt="rr" /></a></p>
  <p>Same process is gonna go on again. Note that I used two 1x6 beams in half because they didn't seem to exist in full. And <em>yes</em>, the technic beam <em><strong>must</strong></em> be laying on the lifters like that. I had to update it.</p>
  <p><a href="https://i.sstatic.net/w2i4h.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/w2i4h.jpg" alt="rr" /></a></p>
  <p>Almost done! But there's more...</p>
  <p><a href="https://i.sstatic.net/UmJL5.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/UmJL5.jpg" alt="brickwork" /></a></p>
  <p>More brickwork...</p>
  <p><a href="https://i.sstatic.net/I04Kl.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/I04Kl.jpg" alt="plate" /></a></p>
  <p>Now we have a technic plate with holes to stick axles through.</p>
  <p><a href="https://i.sstatic.net/1v5RX.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/1v5RX.jpg" alt="axles" /></a></p>
  <p>And of course, we stick axles through, you don't have to use plates like I did. And make sure that they are loose enough and rest on the beams. This is also the time when you can turn the lever to see if the axles pop up and down, up and down, up and down. If they don't and get stuck, try turning the lever the other way.<br> At this point, we are almost, <em>almost</em> done.</p>
  <p><del>The only thing left is to find a way to attach this minifigure shield to the axles. I don't have any solution for this unfortunately.</del></p>
  <p>The final result should look something like this:</p>
  <p><a href="https://i.sstatic.net/xaLkw.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/xaLkw.jpg" alt="finalresult" /></a></p>
  <h2>Update:</h2>
  <p>We've thought of using bars to connect the fountain parts, but we've discovered a few downsides and problems with that.</p>
  <p>The first problem is that the plate with holes in my build is placed in such a way that it's not exactly aligned with the beams below, increasing the chances of any bars being placed on top slipping off.</p>
  <p><a href="https://i.sstatic.net/fDP2o.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/fDP2o.jpg" alt="toofar" /></a></p>
  <p>The second problem is that the bars are noticeably thinner than the size of the holes in the plates, which leads to some pretty bumpy performance, as shown below. Your bar will tip around and possibly even slip out.</p>
  <p><a href="https://i.sstatic.net/OJJFi.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/OJJFi.jpg" alt="toosmall" /></a></p>
  <p>The build can be improved to reduce the chances of such things happening by doing the following:</p>
  <p><a href="https://i.sstatic.net/cX25X.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/cX25X.jpg" alt="rr" /></a></p>
  <p>First, let's remove that plate to make our additions.</p>
  <p><a href="https://i.sstatic.net/LdNiZ.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/LdNiZ.jpg" alt="rr" /></a></p>
  <p>Now we will have some off-set studs in order to align the plate.</p>
  <p><a href="https://i.sstatic.net/e3qPJ.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/e3qPJ.jpg" alt="rr" /></a></p>
  <p>And now we put the plate back, in a better position than before.</p>
  <p><a href="https://i.sstatic.net/Bq6ax.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/Bq6ax.jpg" alt="rr" /></a></p>
  <p><a href="https://i.sstatic.net/lvBe1.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/lvBe1.jpg" alt="rr" /></a></p>
  <p>Now it's not as likely that the bar can slip off the beams. Don't you notice the difference?</p>
  <p>We can reduce the chances of that happening even <em>more</em> if necessary by adding more plates with holes to restrict the bar from slipping, like so:</p>
  <p><a href="https://i.sstatic.net/3WnUL.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/3WnUL.jpg" alt="rr" /></a></p>
  <p>Alright. Now about the fountain spray problem.<br>
  <del>The bar for that piece you're interested in is positioned in a rather odd way (if you're wondering why then just look at some of the thumbnails of 76108) like <a href="https://i.sstatic.net/FyMkV.jpg" rel="nofollow noreferrer">this.</a></del></p>
  <p><del>But don't worry, I have a solution for this. Just stick the <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=11090&amp;name=Bar%20Holder%20with%20Clip&amp;category=%5BBar%5D#T=C" rel="nofollow noreferrer">bar holder /w clip</a> on top of the bar and attach the fountain spray part, and you'll be done! Easy!</del></p>
  <p><del>The completed model should now look something like <a href="https://i.sstatic.net/d5f3r.jpg" rel="nofollow noreferrer">this</a>.</del></p>
  <p><a href="https://drive.google.com/file/d/1KyrN8TresKZtKuyhNtzEK3D8J9un-PHn/view" rel="nofollow noreferrer">Download link (click the button in the upper right corner)</a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-20T14:24:14.133Z
Answers.Text: @Aziraphale It is a simple mechanism, you can see it in action and how it's done in the two hyperlinks in my answer.
Answers.UserDisplayName: mindstormsboi
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-20T14:40:37.173Z
Answers.Text: The prairie dogs are brilliant! However, links may break after a while and the fastest way to enjoy an SE post is to look at images that are provided here. Users usually appreciate this little extra effort. Plus, so far we can only guess what the OP has in mind.
Answers.UserDisplayName: Metalbeard
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-20T16:32:41.457Z
Answers.Text: @Aziraphale I've added some more details and images, originally my answer was too broad. I've discovered that the water spray part can't really be attached because of the odd way the bar is positioned for minifigs to hold it :(
Answers.UserDisplayName: mindstormsboi
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-20T19:06:51.537Z
Answers.Text: @mindstormsboi Have you successfully built AND run this with real bricks? Just curious...
Answers.UserDisplayName: Uli
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-20T19:09:55.720Z
Answers.Text: I don't think rubber connectors would work well here - they are quite soft and bendy. And could only work in one direction.
Answers.UserDisplayName: Alex
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-20T19:18:24.913Z
Answers.Text: @Alex Yes, I know rubber connectors are bad. I just used them because I couldn't find the plastic variant (seen in the first few images). And the fact that it only turns in one direction is no big deal.
Answers.UserDisplayName: mindstormsboi
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-20T20:34:28.407Z
Answers.Text: Thanks for that detailed model mindstormboi. Can you give me a part number on those black pieces you put around the first axle around step 5?
Answers.UserDisplayName: Monte Gardner
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-20T22:05:22.217Z
Answers.Text: @MonteGardner I don't recommend those since they are made of rubber, I think you should use the orange connectors seen in the first few images. I don't have time to find them, but on bricklink I think they're somewhere under the "technic connector" category. Best of luck in finding a wormhole for the power shield problem.
Answers.UserDisplayName: mindstormsboi
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-21T03:33:30.987Z
Answers.Text: Is there a way to replace the vertical axles with a bar-type element? (Is there an equivalent to the technic plate that will hold a bar steady while allowing it to move up and down?)
Answers.UserDisplayName: Monte Gardner
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-21T15:14:46.073Z
Answers.Text: @MonteGardner I've updated my answer, please look. It will answer your questions.
Answers.UserDisplayName: mindstormsboi
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-22T17:00:04.203Z
Answers.Text: Thanks for all the help folks
Answers.UserDisplayName: Monte Gardner
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-06-19T18:50:37.997Z
Answers.LastActivityDate: 2020-11-09T15:30:00.153Z
Answers.LastEditDate: 2020-11-09T15:30:00.153Z
Answers.UserDisplayName: mindstormsboi
Answers.Body: <p>I've created an initial prototype.  I found the &quot;axle with stud 1 x 5&quot; pieces allow me to cross from an axle to a bar type piece such as a fountain.</p>
  <p><a href="https://i.sstatic.net/D5Muf.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/D5Muf.jpg" alt="prototype photo" /></a></p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-08-12T20:07:48.173Z
Answers.LastActivityDate: 2020-11-09T21:17:12.250Z
Answers.LastEditDate: 2020-11-09T21:17:12.250Z
Answers.UserDisplayName: Monte Gardner
Body: <p>2nd question on my Bellagio fountain design: <br><br>
  Suppose I have several <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=35032e#T=S&amp;O=%7B%22st%22:%224%22,%22ss%22:%22US%22,%22rpp%22:%22100%22,%22iconly%22:0%7D" rel="nofollow noreferrer">power burst with bar end</a>, and I want to allow the viewer to turn a knob or something and make them go up and down. How might I do that?</p>
  <p>I suppose I could use a <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=2585&amp;idColor=86#T=C&amp;C=86" rel="nofollow noreferrer">winch</a> with <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=x77ac50&amp;idColor=11#T=C&amp;C=11" rel="nofollow noreferrer">string</a> somehow, but I'd like to do something a little more hidden.</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-06-19T18:44:53.900Z
Comments.Text: Can you provide a picture or sketch of what you are trying to do? What does "go up and down" mean exactly?
Comments.UserDisplayName: Metalbeard
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2020-06-20T20:33:11.603Z
Comments.Text: The first 20 seconds of this youtube video gives a litle more detail on what I'm trying to do:   https://www.youtube.com/watch?v=0tCuPp6nHKM
Comments.UserDisplayName: Monte Gardner
Tags: <design><mechanical>
Title: Vertical motion for a power burst bar
UserDisplayName: Monte Gardner
ThreadText: # Vertical motion for a power burst bar
  
  (Asked by: username_0 on 2020-06-19)
  
  2nd question on my Bellagio fountain design:   
    
  Suppose I have several [power burst with bar end](https://www.bricklink.com/v2/catalog/catalogitem.page?P=35032e#T=S&O=%7B%22st%22:%224%22,%22ss%22:%22US%22,%22rpp%22:%22100%22,%22iconly%22:0%7D), and I want to allow the viewer to turn a knob or something and make them go up and down. How might I do that?
  
  I suppose I could use a [winch](https://www.bricklink.com/v2/catalog/catalogitem.page?P=2585&idColor=86#T=C&C=86) with [string](https://www.bricklink.com/v2/catalog/catalogitem.page?P=x77ac50&idColor=11#T=C&C=11) somehow, but I'd like to do something a little more hidden.
  
  **Tags:** design, mechanical
  > **Comments:**
  > **username_1**: Can you provide a picture or sketch of what you are trying to do? What does "go up and down" mean exactly?  
  > **username_0**: The first 20 seconds of this youtube video gives a litle more detail on what I'm trying to do:   https://www.youtube.com/watch?v=0tCuPp6nHKM  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_2 on 2020-06-19. Score: 4 | Accepted answer
  
  I have an idea which was actually from JKbrickworks. [Here is the MOC that uses it](https://www.youtube.com/watch?v=VpZxTXKQ6C4) and [here is another MOC of his that uses it](https://www.youtube.com/watch?v=qTrLNLMI_Ek&t=29s).
  
  Here it is step-by-step:
  
  [![step](https://i.sstatic.net/OpSXl.jpg)](https://i.sstatic.net/OpSXl.jpg)
  
  First, we have a plain old technic brick.
  
  [![enter image description here](https://i.sstatic.net/nsPo5.jpg)](https://i.sstatic.net/nsPo5.jpg)
  
  Now there's an axle stuck through it. That connector at the end of it is what I will use as the lever to turn. You can use whatever you want.
  
  [![enter image description here](https://i.sstatic.net/ABdp9.jpg)](https://i.sstatic.net/ABdp9.jpg)
  
  These connectors on the other end of the axle are supposed to lift the parts up and down, up and down, up and down. Using bigger ones will push them higher, but make sure that their ends are rounded.
  
  [![enter image description here](https://i.sstatic.net/jMFLv.jpg)](https://i.sstatic.net/jMFLv.jpg)
  
  And obviously, we need to add bushes. But we're still not done!
  
  [![brickwork](https://i.sstatic.net/fwjIw.jpg)](https://i.sstatic.net/fwjIw.jpg)
  
  Buncha brickwork...
  
  [![rr](https://i.sstatic.net/HuVZc.jpg)](https://i.sstatic.net/HuVZc.jpg)
  
  A 1x1 studded beam was added so that we can loosely hold a beam up above.
  
  [![rr](https://i.sstatic.net/qRFHE.jpg)](https://i.sstatic.net/qRFHE.jpg)
  
  A non-friction pin is added.
  
  [![rr](https://i.sstatic.net/kXBG4.jpg)](https://i.sstatic.net/kXBG4.jpg)
  
  A 1x5 beam was added, but I should actually use a 1x6 beam instead, which is fixed in the next images. What's the beam even doing here anyway? It's going to act as a guide for the axles that will sit above it.
  
  [![rr](https://i.sstatic.net/AGycM.jpg)](https://i.sstatic.net/AGycM.jpg)
  
  Same process is gonna go on again. Note that I used two 1x6 beams in half because they didn't seem to exist in full. And *yes*, the technic beam ***must*** be laying on the lifters like that. I had to update it.
  
  [![rr](https://i.sstatic.net/w2i4h.jpg)](https://i.sstatic.net/w2i4h.jpg)
  
  Almost done! But there's more...
  
  [![brickwork](https://i.sstatic.net/UmJL5.jpg)](https://i.sstatic.net/UmJL5.jpg)
  
  More brickwork...
  
  [![plate](https://i.sstatic.net/I04Kl.jpg)](https://i.sstatic.net/I04Kl.jpg)
  
  Now we have a technic plate with holes to stick axles through.
  
  [![axles](https://i.sstatic.net/1v5RX.jpg)](https://i.sstatic.net/1v5RX.jpg)
  
  And of course, we stick axles through, you don't have to use plates like I did. And make sure that they are loose enough and rest on the beams. This is also the time when you can turn the lever to see if the axles pop up and down, up and down, up and down. If they don't and get stuck, try turning the lever the other way.  
   At this point, we are almost, *almost* done.
  
  ~~The only thing left is to find a way to attach this minifigure shield to the axles. I don't have any solution for this unfortunately.~~
  
  The final result should look something like this:
  
  [![finalresult](https://i.sstatic.net/xaLkw.jpg)](https://i.sstatic.net/xaLkw.jpg)
  
  ## Update:
  
  We've thought of using bars to connect the fountain parts, but we've discovered a few downsides and problems with that.
  
  The first problem is that the plate with holes in my build is placed in such a way that it's not exactly aligned with the beams below, increasing the chances of any bars being placed on top slipping off.
  
  [![toofar](https://i.sstatic.net/fDP2o.jpg)](https://i.sstatic.net/fDP2o.jpg)
  
  The second problem is that the bars are noticeably thinner than the size of the holes in the plates, which leads to some pretty bumpy performance, as shown below. Your bar will tip around and possibly even slip out.
  
  [![toosmall](https://i.sstatic.net/OJJFi.jpg)](https://i.sstatic.net/OJJFi.jpg)
  
  The build can be improved to reduce the chances of such things happening by doing the following:
  
  [![rr](https://i.sstatic.net/cX25X.jpg)](https://i.sstatic.net/cX25X.jpg)
  
  First, let's remove that plate to make our additions.
  
  [![rr](https://i.sstatic.net/LdNiZ.jpg)](https://i.sstatic.net/LdNiZ.jpg)
  
  Now we will have some off-set studs in order to align the plate.
  
  [![rr](https://i.sstatic.net/e3qPJ.jpg)](https://i.sstatic.net/e3qPJ.jpg)
  
  And now we put the plate back, in a better position than before.
  
  [![rr](https://i.sstatic.net/Bq6ax.jpg)](https://i.sstatic.net/Bq6ax.jpg)
  
  [![rr](https://i.sstatic.net/lvBe1.jpg)](https://i.sstatic.net/lvBe1.jpg)
  
  Now it's not as likely that the bar can slip off the beams. Don't you notice the difference?
  
  We can reduce the chances of that happening even *more* if necessary by adding more plates with holes to restrict the bar from slipping, like so:
  
  [![rr](https://i.sstatic.net/3WnUL.jpg)](https://i.sstatic.net/3WnUL.jpg)
  
  Alright. Now about the fountain spray problem.  
  ~~The bar for that piece you're interested in is positioned in a rather odd way (if you're wondering why then just look at some of the thumbnails of 76108) like [this.](https://i.sstatic.net/FyMkV.jpg)~~
  
  ~~But don't worry, I have a solution for this. Just stick the [bar holder /w clip](https://www.bricklink.com/v2/catalog/catalogitem.page?P=11090&name=Bar%20Holder%20with%20Clip&category=%5BBar%5D#T=C) on top of the bar and attach the fountain spray part, and you'll be done! Easy!~~
  
  ~~The completed model should now look something like [this](https://i.sstatic.net/d5f3r.jpg).~~
  
  [Download link (click the button in the upper right corner)](https://drive.google.com/file/d/1KyrN8TresKZtKuyhNtzEK3D8J9un-PHn/view)
  
  > **Comments:**
  > **username_2**: @Aziraphale It is a simple mechanism, you can see it in action and how it's done in the two hyperlinks in my answer.  
  > **username_1**: The prairie dogs are brilliant! However, links may break after a while and the fastest way to enjoy an SE post is to look at images that are provided here. Users usually appreciate this little extra effort. Plus, so far we can only guess what the OP has in mind.  
  > **username_2**: @Aziraphale I've added some more details and images, originally my answer was too broad. I've discovered that the water spray part can't really be attached because of the odd way the bar is positioned for minifigs to hold it :(  
  > **username_3**: @mindstormsboi Have you successfully built AND run this with real bricks? Just curious...  
  > **username_4**: I don't think rubber connectors would work well here - they are quite soft and bendy. And could only work in one direction.  
  > **username_2**: @Alex Yes, I know rubber connectors are bad. I just used them because I couldn't find the plastic variant (seen in the first few images). And the fact that it only turns in one direction is no big deal.  
  > **username_0**: Thanks for that detailed model mindstormboi. Can you give me a part number on those black pieces you put around the first axle around step 5?  
  > **username_2**: @MonteGardner I don't recommend those since they are made of rubber, I think you should use the orange connectors seen in the first few images. I don't have time to find them, but on bricklink I think they're somewhere under the "technic connector" category. Best of luck in finding a wormhole for the power shield problem.  
  > **username_0**: Is there a way to replace the vertical axles with a bar-type element? (Is there an equivalent to the technic plate that will hold a bar steady while allowing it to move up and down?)  
  > **username_2**: @MonteGardner I've updated my answer, please look. It will answer your questions.  
  > **username_0**: Thanks for all the help folks  
  
  ---
  
  ### Answer by username_0 on 2020-08-12. Score: 4
  
  I've created an initial prototype. I found the "axle with stud 1 x 5" pieces allow me to cross from an axle to a bar type piece such as a fountain.
  
  [![prototype photo](https://i.sstatic.net/D5Muf.jpg)](https://i.sstatic.net/D5Muf.jpg)
  
  
  ---
  
  