Archive for the ‘Mikrokopter’ category

Poolparty.at Video

August 9th, 2011

I did a short video for a friend of mine. The video was taken with a Hexakopter and a fixed GoPro HD was mounted directly under the LiPo Battery. Details about the party can be found on www.poolparty.at


YouTube - Link: Poolparty.at – Setup 2011

Lumix DMC-TZ7 on Hexakopter

November 11th, 2010

Short test-flight with a Lumix DMC-TZ7 Camera mounted on a Hexakopter with the HighSight II camera mount.

The Nick Axis is very jittering because of the servo. A servo with a higher resolution or a gear (for example 3:1) would be a solution to reduce the “shaking” effect.

But no “wobbling” or “rolling shutter” effect 😉

No filter applied to the material. Check it out (available in 720p on Youtube HD):


YouTube - Link: Lumix DMC-TZ7 on Hexakopter

Flight Time Calculation for Mikrokopters using Matlab

September 25th, 2010

Hi Guys!

This week Holger wrote a request in the Mikrokopter forum for a tool to calculate the flight time of a Mikrokopter based on basic parameters:

  • Thrust curve of a Motor (grams over current)
  • Number of Motors
  • Mikrokopter Weight without Lipo
  • Lipo Weight
  • Lipo Capacity
  • Payload
  • Losses
  • LipoFactor (g per mAh – typical 50-100 g/Ah) – Here is also a nice List from Nabazul from the MK-Forum

With this data it is possible to calculate the flight time.

Also I created very interesting plots of flight time over Lipo capacity and flight time over payload. (It would also be possible to creat a 3D plot with both parameters)

I decided to make the calculation with a little Matlab script (M-File) that you can download here.

» Read more: Flight Time Calculation for Mikrokopters using Matlab

Mounting the JETI Box Mini to the Graupner MX16s Transmitter

August 15th, 2010

Last week I received the JETI Box Mini from RC-easy. Perfect timing after the modification of my MX16s with the JETI 2.4GHz Transmitter.

So I mounted the JETI Box on my Transmitter and here are some pictures:

This is the JETI Box Mini:

Now I had to find a nice place where I can mount the Box to the MX16s. I decided to place the Box directly in the middle of the transmitter.

Then I put the signal wires of the JETI Box through the hole

» Read more: Mounting the JETI Box Mini to the Graupner MX16s Transmitter

Modification of Graupner MX16s to JETI System (35 MHz – 2,4GHz switchable)

August 10th, 2010

Some weeks ago I decided to buy a new remote control for my Mikrokopter(s). I took the standard model (MX16s from Graupner) which is recommended for Mikrokopter pilots.

At the same time I had to think about 2.4 GHz remote control – But I would like to have the choice between the two frequency bands (35 MHz and 2.4 GHz) so I modified the MX16s 35 MHz remote control with the JETI System to have the ability to switch between 2.4 GHz and 35 MHz at any time.

So I can use 35 MHz for FPV flights and 2.4 GHz for “normal” training or fun flying. (Maybe I will buy a 5.8 GHz video set in future, but that is not a requirement in the moment.)

Below you can find step-by-step pictures of the modification of the MX16s remote control.

Good luck with your modification and happy flying 😉

Neuer Hexakopter für das VideoMediaTeam

July 22nd, 2010

Die letzten 2-3 Wochen habe ich für das VideoMediaTeam einen Hexakopter gebaut. Im Wesentlichen besteht der ganze Kopter aus Standardbauteilen aus dem Mikrokopter Shop mit Ausnahme der Motoren (AXI).

Sender

Als Fernsteuerung ist die MX16s (35MHz Band) von Graupner im Einsatz, welche später auch noch mit dem Jeti System auf 2,4 GHz umgerüstet werden könnte. Zu beachten ist, daß der Senderakku das erste Mal mit 150 mA über einen Zeitraum von 12 Stunden geladen wird. Um den Sender mit dem Mikrokopter verwenden zu können muss noch auf dem Linken Stick die Feder ausgehängt bzw. montiert werden, damit der Stick nicht selbstständig zurück in die “0-Stellung” gelenkt wird. (Es gibt ja kein Negativ Gas/Pitch beim Mikrokopter, also ist der Stick ganz unten auch Gas Null)

Ladegerät

Als Ladegerät ist das ULTRAMAT 14 plus von Graupner in Verwendung welches mit jeglichen Akkutypen zurecht kommt. (Senderakku: NiMH, Flugakku LiPo)

AXI Motoren

Der erste Schritt war die Montage der Motoren. Dazu wurden die LED, Motor und Buzzer Kabel in die jeweiligen Ausleger eingezogen.

» Read more: Neuer Hexakopter für das VideoMediaTeam

Mikrokopter, FPV, Planes – Lichtwiese Video from Nebukad

April 24th, 2010

…everything you need for a nice afternoon.

Nice Video (+ editing) from Nebukad (location: Lichtwiese).


vimeo - Link: 

» Read more: Mikrokopter, FPV, Planes — Lichtwiese Video from Nebukad

NicoletoMK – featured on Hacked Gadgets

February 5th, 2010

Hi Guys!

In January an article on Hacked Gadgets showed a Mikrokopter from Nicoleto.
After visiting his homepage I saw a really nice concept for the HD camera mount.

» Read more: NicoletoMK — featured on Hacked Gadgets

Exploring WiFly RN-131 GSX Embedded WiFi Module

October 3rd, 2009

I made the next step in the direction of WiFi. Some days ago I surfed the Internet for an embedded WiFi module for less money. And finally I found the WiFly GSX modules from Roving Networks. Their slogan is “Wireless for less” 😉

So I ordered some evaluation boards (about 100€/pcs) for me and two collegues who are studying with me at the NTB. Our goal is to have fun with wireless applications.

The RN-131 GSX Module is a 802.11 b/g wireless LAN Module with a lot of features – Details see datasheet.

If you already have a GSX Module you can use my LabView source below to show the UDP packets which the module sends in default configuration every 7 seconds.

The packets include

  • MAC address of AP
  • WiFi-Channel
  • RSSI (quality)
  • local TCP port
  • RTC (real time clock value)
  • NTC temperature option (if temperature sensor connected to module – otherwise sensor 7)
  • Spare sensor reading
  • ASCII time
  • Version string with date code and Device ID string

This information can be used to open a TCP connection to the module or to configure it over WiFi. The module has to be in the same subnet as your PC or MAC if you want to receive the packages.

Here are some pictures of the Module in action:

Here is the LabView (8.6) Source as LLB: wifly-monitoring-distribution

3rd Outdoorflying in Zürich (13.06.2009)

June 18th, 2009

Hi MK-friends!

I attended the 3rd outdoorflying in Zürich and it was a lot of fun. Of course I had my digital video camera with me and now you can watch the whole day in a short 9 minute clip. Of course there are some scenes with the EPI-OSD hardware with the new C-OSD software from Cascade. A short clip with EPI-S (current measurement) is also included. It was really fun to meet some guys from the forum and to have “real” talks. And of course we had some sausages over the fire 😉 (The fire was heated by Mikrokopter(s))


vimeo - Link: Third Outdoorflying in Zürich – 13.06.2009

To improve my Kopter for this event I finally found the time to mount the PET “Haube” onto the Kopter. Pictures will follow in the next days.