将您的相机三脚架转换为史诗游戏中时光倒流全景滑块!

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简介:将相机三脚架转换为史诗游戏中时光倒流全景滑块!

About: I’m Fernando Zigunov, a refrigeration engineer R&D specialist, interested on a myriad of scientific subjects. I graduated as a Mechanical Engineer at UNISINOS unversity and now am aspiring to join for a PhD p…

你有没有想做一个美好的游戏中时光倒流,你有一些相机运动?如果您在市场上看,您可以购买一些(相当昂贵的)机动滑块。这些通常以300美元至600美元,但他们的旅行没有太多的旅行。例如,这个模型拥有31.5英寸(0.8米)的旅行,费用为258美元。这个是369美元,旅行47“(1.2米)。我相信他们已经拥有了更好的建设和更好的特征,而不是我在这里展示的东西。

But truth of the matter is - we are makers and we like to make our own equipment! So I came up with this while discussing with my friend how to make a timelapse where the camera circles around a subject. Since the radius is usually large, we would need ludicrously large equipment, and obviously it wouldn't fit in our car. So the obvious alternative is to "loosen up" the requirement of rigidity of the setup and let the camera shake as it moves. Because at the end of the day, we're in the computing era and we can fix the footage later, right? Well, see the video below for yourself! (Also in the end there's a little compilation of a few timelapses I was able to take with this rig)

Also, if you look at the BOM; I've spent about $50 (plus the tripod) for what is effectively infinite travel - as long as there's no obstacles in the way and the terrain is smooth enough. A much better deal in my opinion! I've tested this design only on pavement and stone sidewalks, and it works "okay". It is wonderful in cement pavement. But it will fail in gravel, grass or anything too rough - the wheels I designed are simply too small. But perhaps this can prompt you to make a similar design for your own application!

因此,您可以在下面观看视频或只是遵循指示图像。系统非常简单。享受!

补给品:

  • 1x NEMA 17步进电机(Link) [$5 ea]
  • 6X 625ZZ(5x16x5 mm)轴承(Link)[6.28美元/ 10pcs]
  • 1x 5mm轴(Link) [$6.89]
  • 1x蓝牙HC-05串行模块(Link) [$5 ea]
  • 1x NEMA 17至5mm轴联轴器(Link)[$ 2.58 EA]
  • Lots of M3 screws (Link) [$11/box]
  • 2x 18650 cells (Scrap from laptop)
  • 1x arduino nano(Link)[$ 5.33 ea]
  • 1x A4988步进驱动器(Link)[$ 1.20 EA]
  • 〜0.2kg abs长丝[$ 4] -不要使用PLA.如果你打算把它留在你的车里!
  • [Optional] 3.5mm female jack (Link) [$4 ea] for shutter release
  • [可选]快门释放电缆(Link)[$ 7 EA] - 确保为您的相机购买正确的电缆!

所以总estimated cost, without random materials like PCB, wires, solder, etc is about $47 (without the optionals). Might not be the cheapest project, but considering there's not really any options to do this on the cheap (to my knowledge), this is quite decent!

第1步:打印零件!

好的 - 所以第一步是打印设计。我在Wilteriverse中发布了设计,如果您可能想要为自己的必要性修改设计,则为STL文件和步骤文件。我提出的设计是一种夹紧机构,只需为三脚架的每个腿添加轮子。前部“驱动器”轮具有步进电机和控制一切的电路板。

https://www.thingiverse.com/thing:4599836.

Step 2: Make the Driven Wheels

The driven wheels are actually quite straightforward to assemble. Screw the clamps to the main part and hammer the 5mm pin for the wheel in place. The wheel is bolted together for increased contact surface. Put the bearings on it and stick it to the shaft! If you want, you can use an end cap to prevent the wheel from falling off. My bearings were well-stuck to the shaft, so I skipped that part, but the caps are in the Thingiverse design.

第3步:制作司机组件

驱动程序组件的顶部与其他轮子相同。“脚”安装在旋转板上,其具有用于驱动器组件的两个弧形槽。前两张照片显示了驾驶员的第一次迭代,但我最终修改了它(最后一张图片)以提高稳定性。第二个版本是在造成的人身上发表的。

第4步:三脚架完全转换!现在到大脑:

So I'm using an Arduino Nano for this project. The first iteration used the paintbrush schematic in the latter pictures, but I finally found some time to make a PCB design of it. Link to the EasyEDA project below:

https://easyeda.com/fzigunov/timelapse_cart.

如您所见,我们只需将组件连接在一起。Arduino服务了2个目的:步进步进并使与蓝牙的接口。该界面将使用应用程序完成,该应用程序将其节省了构建进入界面的按钮/ etc的麻烦。它还让我们改变了改变系统所做的事情的许多自由!

I added in a revision a feature for connecting a shutter release cable to your camera, which usually converts your camera connector into a microphone 3.5mm jack. With this cable, the Arduino will be able to trigger the camera. This can be used for night timelapses, so we are not driving the tripod while the camera is exposing. It's an optional feature, though.

第5步:下载应用程序以配置游戏中时光倒置参数

所以我用麻省理工学院App Inventor建造了一个小型应用程序(请参阅附加文件,我不得不在赋予指令网站中的文件扩展限制导致上传。将扩展从TXT更改为zip。您可以上传* .Aia文件麻省理工学院应用程序发明家要查看该应用程序的内置方式,如果您想使用它,您可以在手机上安装* .apk文件[界面可能是手机中有点锯齿,因为我不是专业的应用程序开发人员!]。如果您担心在手机(您应该是)上的外部应用程序(应该是),那么您可以编译MIT应用程序Inventor项目并获得QR码,您可以用来在手机上安装应用程序。

该应用程序基本上构建了一串4个字节,通过串行接口发送到蓝牙HC05设备。此4字节字符串已在系统的5个参数中编码,如下所示:

VVVVVVV VVVVVV MDDDDDDD SWWWWWWWWWw

Where VVVVVVVV VVVVVVVV is a 16 bit integer that encodes the 10*velocity inputted by the user in the app, M is a bit encoding whether the motor is on or off, DDDDDDD is a 7 bit integer with a time (in seconds) for driving the system in stop-and-go mode, S is the bit that turns on the stop-and-go mode, and WWWWWWW is the 7 bit integer with the wait time of the stop-and-go mode.

我编码它,因为MIT应用程序发明人具有发送此4字节字符串的内置函数。这意味着我只能发送一个命令,而无需处理管道或类似的东西。然后,Arduino只需解码此权并设置步进器的参数,正如我们在下一步中看到的那样!

第6步:计划Arduino

Well, there's not much here. The firmware is attached. It's basically the byte manipulation I discussed in the last step! I also implemented the shutter release. This should be able to trigger the camera for beautiful long exposure photos and eliminates the need for an intervalometer (as the Arduino itself can serve as an intervalometer).

第7步:连接电池,让我们去(长)骑!

所以你可以在这个步骤中看到视频中的视频,它相当好=)

The swivel mount in the driver allows us to make shots that circle around a subject, which is really neat. The problem is that the bumpy ground/asphalt will make the frames very unstable, so your footage will need to be stabilized. This is why timelapse sliders are usually very rigid railed systems, so this is not an issue. But you can only go so far with a slider system (certainly you can't move the camera 30 meters as I did in the statue shot!).

Step 8: Post-processing for Stabilization of the Footage

如上所述,我们无法在机械上真正做得很多,以防止摇晃。也许较大的轮子具有较柔软的材料,将稍微摇动一点,但它们在储存零件时变得笨重,我认为他们不会稳定镜头到不需要后处理的那一点。如果您确实构建了具有较大轮子的变体,如果您可以跳过后处理步骤,我想收到您的消息!

我使用Adobe Lightroom将图片转换,然后是Adobe Premiere以后处理素材。经线稳定剂令人难以置信的工作 - 我被震惊了!如果使用大量的平滑度(如100%或更多),则稳定性非常不错。由于Premiere中的经线稳定器过滤器非常易于使用,因此我相信我真的无法在这里添加很多。只需将其应用于您的镜头并享受结果!

Thanks for reading this - please let me know if you found this useful and if you build one for yourself! I would love to see footage you generated with this idea!!

步骤9 :(可选)适用于3D打印机

这种游戏中时光倒流系统可以做的另一件事是围绕3D打印机盘旋的相机。在这种情况下,您需要使用与3D打印机的连接。只需将打印机触发信号连接到Arduino中的D6引脚并使用附加的代码。现在,当打印机使用该图层完成并停放在某个地方时,您通常可以添加自定义M42 G代码,以便在打印机板中切换引脚,该引脚将确认Arduino移动相机并拍照。

见下面可以做些什么!

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    6讨论

    1
    Jeanniel1.

    4 months ago

    这是伟大的 - 所以可以竭尽全力!我一直试图建立一个游戏中时光倒流滑块 - 但我只能直线。

    Awww,但你怎么烧了兔子?

    0
    3DFERNANDO.

    4个月前回复

    我很高兴你发现它很容易构建!关于兔子,我实际上印刷了两个(第一次拍摄我搞砸了照明!)。所以我有一个额外的兔子,我不想要= p

    加上,很有趣!!

    1
    anandm54

    4 months ago

    I think u did awesome thing!!! Wow

    0
    3DFERNANDO.

    4个月前回复

    谢谢杰西!做出很多乐趣,我希望其他人可以从中受益!=)