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A Motorized Camera Dolly
Andy D posted a topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
So just why did I build this thing? A few weeks ago I finally bought a GoPro (Hero 4 Silver)... Great little camera (very little). I was looking on the Internet and YouTube to see all the interesting things people are doing with their GoPros. Many people who use GoPros are as enthusiastic about the many uses for their GoPro as we are about our LEGO. Anyway, after looking at many of the interesting ways people were using their GoPros I decided I wanted to combine GoPro with LEGO. What to do? What to do? What to do? That’s it, I’ll build a camera dolly. Capabilities, what do I want it to do? Must be remote controlled. Must be as small as possible. Must be very agile. Must be able to turn on itself. I started looking to see what other’s had done... Very interesting, but not exactly what I wanted. I finally decided that a good platform would be a skid steer platform. I started looking at small skid-steer devices and found small skid steer loader by “imurvai” back in 2013. http://www.eurobrick...showtopic=87099 I thought that the platform he used for his loader would make a good skid steer platform for my camera dolly. I downloaded his .lxf. I started looking in my inventory for parts and found that I did not heave enough of the studless open frames (needed four (4), I only have one (1)) So I started looking for alternatives. I have plenty of the open frames with studs so I started to build. I built the frame with gears, wheels, battery box and IR remote. I worked well, but it was a little faster than I wanted and the skid steer turning was a much rougher than I wanted so I started looking for alternatives. I remembered the three wheeled robots used with NXT (the TaskBot). I thought about using NXT, but just not in the mood for programming and I could not find a suitable bluetooth remote. I gave up on NXT and implemented my design with studded and non-studded Technic and power functions. In order to reduce the speed (that thing was fast) I implemented a gear train. This works pretty good, but I still need more control. Well, here it is, My “Camera Dolly MK I“... I wanted it to look very utilitarian, so nothing fancy, just function. First I built the dolly Here is a Right side view https://flic.kr/p/wU1cvG]Right side[/url] by https://www.flickr.c...MyPlasticBricks[/url], on Flickr A rear view https://flic.kr/p/xcb52e]back[/url] by https://www.flickr.c...MyPlasticBricks[/url], on Flickr A head on front view https://flic.kr/p/xcb5BH]HFV[/url] by https://www.flickr.c...MyPlasticBricks[/url], on Flickr And a bottom view. https://flic.kr/p/wU8qnv]BV[/url] by https://www.flickr.c...MyPlasticBricks[/url], on Flickr I used the GoPro mount by Kyle Martin, you can see it on YouTube, just search Kyle Martin LEGO GoPro Mount. Here a re a few photos of the dolly with the GoPRo mounted First a front-side view https://flic.kr/p/xaRcPd]Front[/url] by https://www.flickr.c...MyPlasticBricks[/url], on Flickr A head-on view https://flic.kr/p/xaRnQ5]HVH4[/url] by https://www.flickr.c...MyPlasticBricks[/url], on Flickr And a couple of rear views. https://flic.kr/p/xcbcXe]BQvH4[/url] by https://www.flickr.c...MyPlasticBricks[/url], on Flickr https://flic.kr/p/weATQ1]BVH4[/url] by https://www.flickr.c...MyPlasticBricks[/url], on Flickr Finally a link to the Flickr album for more photos https://www.flickr.c...157657004407316 The biggest challenge was editing the video to go along with this post, so here it is... Oh yeah, while the camera dolly is agile, not quite as agile as I had hoped for and it is still a little too fast, I need to gear it down a little more to gain more precise control. I hope to make the next version much more agile and able to achieve more precise control. I hope you enjoyed this, and C&C are welcome. Andy D