projects

multiwii quadcopter #7 quadcopter #7

this quadcopter has already gone through multiple design iterations. three of these made it into actual flying machines. the design plans for the first can be found here: http://www.thingiverse.com/thing:113703. the design plans for the second can be found here: http://www.thingiverse.com/thing:167001. the third is not yet on thingiverse. the following pictures show the various design iterations: […]

multiwii quadcopter #6 quadcopter #6

this is the first laser cut poplar plywood quadcopter. it is a very lightweight design having a takeoff weight of around 550 grams (including lipo 2s 2200mah). design by sini

scanner4 3d scanner #4

my newest 3d laser scanner is also the most sophisticated system i have ever built. it features a calibration system to calibrate the camera and to find the laser relative to the camera, no matter how the laser was placed. the components of the system are the following: line laser with drive usb webcam calibration […]

scanner3 3d scanner #3

it seemed interesting to scan an object not just from one side but all around in one pass. a rotating table on which the object can be placed would do just fine. other than that this scanner is very similar to the 3d scanner #2. in order to improve capturing of dark surfaces i built […]

scanner2 3d scanner #2

my first 3d laser scanner was really just some kind of proof of concept device. therefore it’s a relatively simply setup with a usb camera, a stepper motor on which a line laser is mounted, a stepper motor controller and some software. it doesn’t use any kind of automatic calibration. the calibration is done for […]

scanner1 3d scanner #1

my first 3d scanner is a touch probe scanner that scans very accurately due to the very high resolution along each axis and a very fine touch probe. the scanner works very slowly. the reason is that the touch probe has to contact the object at every point of the x-y coordinate grid. some of […]

multiwii quadcopter #5 quadcopter #5

this is my second foldable quadcopter. since the first foldable quadcopter suffered heavily from vibrations the design had to be made much stiffer. this was achieved by increasing the diameter of the carbon rods, shortening of the rods and increasing the diameter of its body. the design of the quadcopter can be found here. the […]

multiwii quadcopter #4 quadcopter #4

this is my first foldable multiwii quadcopter. it is a very lightweight design and therefore prone to vibrations. in fact, the vibrations were so strong that it was very difficult to fly this multirotor.

multiwii quadcopter #3 quadcopter #3

this quadcopter is almost the same as quadcopter #1 except for its lighter aluminum tubes, a modified landing gear and a support plate for all the fpv electronics. it also features an attachment point for a gopro camera with vibration insulation. since the camera is mounted near the cog of the quadcopter the propellers are […]

multiwii quadcopter #2 quadcopter #2

this is a very lightweight quadcopter made of carbon fiber tubes, glass fiber plates and 3d printed lugs to mount the motors. it is very agile and was actually the quadcopter with which i flew the first looping.