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my Hobbies are: microcopy, photography, AstroPhotography


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Areal Photography


Activity Feed

Franz Helmli posted a discussion
HiWhen I try to connect to APM 2.5 it does not work. notes:Com port is correct.power is present (LEDs are flashing)I can upload the actual firmware to the APM 2.5 board and it works.What can I do?Is this a known bug?regards    Franz
Sep 16, 2012
Franz Helmli posted a discussion
hibuild a new hexacopter made of carbon.The goal is to simple take images with the canon g11.It is build of 18mm carbon tubes. The diameter is 90cm. The top plane is 1mm and the bottom plate is 2mm cfk (diameter of center plate is 250mm).  I use 12"…
Apr 22, 2012
Franz Helmli commented on Denny Rowland's blog post ROWLAND F1-535 nears production status
"Hi
I have some questions!
What is the weight?
What is the diameter of the copter?
What is the diameter of the props?
Do you mean that a shorter motor is better for stability?
Do you mean a invers position of motor and props is better for stability?…"
Feb 12, 2012
Franz Helmli posted a discussion
HiMy next hexacopter shlud be something professional. I wand an uavframe or a self made carbon tube frame.The goal is to build a hexacopter to carry a camera like the canon g11. The diameter should be 80cm.Uavframe: one peace carbon,700€, very…
Jan 14, 2012
Franz Helmli posted a discussion
Hi My actual hexacopter has got a weight of 2.2kg with accu and I want to reduce the weight but keeping the same stability (in future i want to carry another 900gramm, that is a camera and the camera mount): At the moment the aluminium tubes have…
Oct 27, 2011
Franz Helmli posted discussions
Oct 8, 2011
Franz Helmli replied to Shaw Innes's discussion Aerial photos to DEM / DTM
"Hi

I know a software called mex from alicona. This software can be used with 2 stereo images to calculate a calibrated dense 3d depth image in a minute.the software need the images, the tilt angle and the size of somethink in the image. If three…"
Oct 4, 2011
Franz Helmli replied to Duran - ALTI's discussion Custom Carbon Fiber Foldable Quad GoPro Frame!
"Hi

Looks vefy got!
How to you conect the carbon to the other parts?

Regards"
Sep 26, 2011
Franz Helmli posted a discussion
HiWhen i arm or disarm the motors it would be a good idea to have a beeper instead of the leds ( or aditionaly)Advantages:- if electrinic is housed one can. Not see the leds- if the sun is very shiny i can not see the leds.What do you think? Are…
Sep 26, 2011
Franz Helmli replied to Franz Helmli's discussion the next crash
"Hi
 
here are some pics
 Foto.JPGFoto2.JPG"
Sep 25, 2011
Franz Helmli posted a discussion
hi After some good flights and several very bad crashes (a lot of motors and frames) I rebuild my hexacopter (15mm aluminium, housing for the electronics,....)It took me 2 day to do that. Today I was flying with 2.0.45 and it was good. A little…
Sep 25, 2011
Franz Helmli posted a discussion
Hi I have the following setup and I think that the esc get too hot: 50-60degrees 6x Keda 20L226x 10x4.5 props6x Hobbyking HK30 with 25 A permanent current possibility3s 5700 LipoCanon C11 camera58cm fram with 10mm alu2kg averall weight with lipo and…
Sep 11, 2011
Franz Helmli posted discussions
Sep 10, 2011
Franz Helmli posted a photo
IMG_8386 (640x427)
Sep 4, 2011
Franz Helmli posted a discussion
Hi am new here with arducopter. And I think i am too stupid for it: I fly a hexacopter (arducopter) for 4 weeks and it is fun but I crash it very ofter. I had the following problems:1. lost a prop in 50m heigth: full crash, 2 Motors broken, 5 props…
Sep 4, 2011