Crane/Slider for timelapse | UPDATE: construction finished
First I want to officially introduce myself. I am 18 years old, living in Germany and currently doing a apprenticeship as carpenter.
As timelapse-photography is my big passion I have unavoidable to deal with Motion Control Systems. I built a small slider in spring which absolutely convinced me of whats possible in that league of timelapse photography.
Here my latest timelapse video were you can see the results: http://vimeo.com/30183976
Unfortunately I see some massive deficits in that construction. It's absolutely not stable enough which is caused by the small contact surface to the tripod(s) and the small rail.
The next thing I did was to build a Crane. It wasn't well planed and I built one on the spur of the moment. Here a pic of it:
First you might think, well whats wrong with it ?
Here the cons:
-telescopic contruction of the arm itself -> not usable as rail for a slider
-fixed length of the arm caused by the telescopic contruction and usage of a cable for the camera mount
-no precise way to fix the cable to avoid unintended tilting of the cam while moving the arm
-usage of a small turntable as rotation point of the crane which caused jiggling
-too small distance of the paralell bars -> camera doesn't fit between.
-no system for easily adjusting the counterweights.
To do all that better I decided to built a new one which should be easy to work with, lightweight, portable and upgradeable.
I already spent a lot of work in planing that all.
Here some specs of the new one:
-arm/rail consists of 40/20mm aluminium profiles of 1m length
-"V-Mount" is the identical with the camera mount -> no tilting caused by displaced pivot point
-stable conection to the camera with bar
-Crane directly mounted to tripod head -> pan and tilt with tripod
-side support brackets used for adjusting counterbalance/tripod conection/belt clamp
-H-Brackets for tripod conection within the rail -> dolly can roll over
-custom motor mount for easy changing of motors with different gear ratios
-ability to motorize the crane for extreme slow paning by using a huge gear
-package size: 1m
I think you might see the resemblance with the Kessler Crane and the Shuttle Pod. But well, I can't affort Kessler gear so I have to built my one stuff. I have the possibilties to work with the machines in the carpenter's shop. So why don't built my own Kessler gear for a fraction of the price ?
my concept so far:
I am posting that to get some thoughts about my contruction. Possibly you find some points I havn't thought about. So let me hear what you would improve !