Veikko Vierola
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Veikko Vierola's Groups

Veikko Vierola's Discussions

Airframe Weight Management

Started Feb 6 0 Replies

Just made a hole to the top lid of my quad copter. Weight loss 60 grams. Now the TOW is 2070g with 8000mAh battery, hover PWM out is 72,5% so about 100g additional weight loss would set the PWM below…Continue

Tags: Output, Motor, Light, Carbon, PWM

3D-Printed Motor Pod

Started Feb 3 0 Replies

Here is a couple of motor pods that I 3D-printed. Mesh type (biomimicry/biostructure) pod is much lighter but still feels quite strong...thought I'd cover it with thin carbon fibre or some sort of…Continue

Tags: frame, strut, engine, biomimicry, biostructure

Pixhawk boot/connection problem after AC 3.2.2 FW install

Started this discussion. Last reply by Veikko Vierola Jan 31. 1 Reply

Hi,Just installed new AC 3.2.2 firmware with APM Planner 2.0. Perhaps something went wrong with the installation cause PH doesn't react normally: When I connect the USB no sounds from the piezo (just…Continue

Tags: Light, Sound, Flashing, Reset, Update

Pixhawk stays in the ESC calibration mode.

Started this discussion. Last reply by Veikko Vierola Sep 19, 2014. 2 Replies

Hi,I have Favourite Sky III 30AX4 4 in 1 ESC. I'm calibrating the ESC like this;1. I put radio on, I set full throttle2. I power up Pixhawk and wait for musical startup tone of Pixhawk and then…Continue

Tags: Pixhawk, throttle, problem, mode, calibration

 

Veikko Vierola's Page

Latest Activity

Veikko Vierola posted a discussion

Airframe Weight Management

Just made a hole to the top lid of my quad copter. Weight loss 60 grams. Now the TOW is 2070g with 8000mAh battery, hover PWM out is 72,5% so about 100g additional weight loss would set the PWM below 70%. Any good ideas?See More
Feb 6
Veikko Vierola commented on Marco Robustini's blog post "PX4 VTOL" - Full automatic mission with multiple transitions
"Marco, how much reduction of AMP-load or increase of flight time do you get if compared to similar size pure quad copter on level flight?"
Feb 3
Veikko Vierola posted a discussion

3D-Printed Motor Pod

Here is a couple of motor pods that I 3D-printed. Mesh type (biomimicry/biostructure) pod is much lighter but still feels quite strong...thought I'd cover it with thin carbon fibre or some sort of film....See More
Feb 3
Veikko Vierola commented on Mark Harrison's blog post APM2 ESC startup problem and workaround
"Ref: Chris Anderson: "We've seen this issue with a small number of ESCs (different brands have different firmware, and handle startup sequences differently). We're working on a startup PWM sequence that may handle these outliers…"
Jan 31
Veikko Vierola replied to Veikko Vierola's discussion Pixhawk boot/connection problem after AC 3.2.2 FW install
"OK, problem solved: The MicroSD memory card filesystem or something was corrupted, OS X didn't recognize the card. I wasn't able to format the card. Replaced new 1GB mem card and Pixhawk worked again. I even tried to format the card with…"
Jan 31
Veikko Vierola posted a discussion

Pixhawk boot/connection problem after AC 3.2.2 FW install

Hi,Just installed new AC 3.2.2 firmware with APM Planner 2.0. Perhaps something went wrong with the installation cause PH doesn't react normally: When I connect the USB no sounds from the piezo (just short 1ms silent knock sound). Safety button is flashing. PWR green, FMU green, B/E amber, ACT flasing blue. APM Planner 2.0 or Q-Groundcontrol doesn't recognize the PH.Any ideas to "force reboot/reset" the pixhawk or something? Is there any CLI software on MAC to inspect the Pixhawk or to give…See More
Jan 31
Veikko Vierola posted a photo

VAV-UAV

My current setup, self made fuselage, works well.
Sep 13, 2015
Veikko Vierola commented on Veikko Vierola's photo
Thumbnail

APM BOX ACRYL UAV VAV

"One is for the APM and the other one is for the stand alone cellular tracker..."
Apr 3, 2015
Tony commented on Veikko Vierola's photo
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APM BOX ACRYL UAV VAV

"Why  are two GPS in there."
Apr 1, 2015
Veikko Vierola replied to Anna Tian's discussion Best open source autopilots v.s. commercial autopilots for conventional fixed wing unmanned aircraft usage
"I believe quite strongly that many "commercial" autopilot manufacturers are investigating and copying the open source algorithms like Arduplane-code or Arducopter-code and they use those algorithms in their own commercial products every…"
Jan 24, 2015
Veikko Vierola replied to John L's discussion Tarot Gimbal Windows 8.1 Issues in the group IRIS
"Have you installed the latest FTDI drivers from ftdichip.com?"
Nov 26, 2014
Veikko Vierola replied to Veikko Vierola's discussion Pixhawk stays in the ESC calibration mode.
"I found this old comment written by Chris Anderson: Comment by Chris Anderson on September 7, 2012 at 7:19am We've seen this issue with a small number of ESCs (different brands have different firmware, and handle startup sequences…"
Sep 19, 2014
Veikko Vierola replied to Veikko Vierola's discussion Pixhawk stays in the ESC calibration mode.
"OK now I noticed something strange. When I first power up the Pixhawk with USB and then connect the battery, everything works as it should. If I power up directly by connecting the battery the Pixhawk gives full throttle indication to the ESCs and…"
Sep 19, 2014
Veikko Vierola posted a discussion

Pixhawk stays in the ESC calibration mode.

Hi,I have Favourite Sky III 30AX4 4 in 1 ESC. I'm calibrating the ESC like this;1. I put radio on, I set full throttle2. I power up Pixhawk and wait for musical startup tone of Pixhawk and then disconnect the battery3. I reconnect battery and I hear a low sound which after I press the safety button4. Pixhawk goes to ESC caibration mode5. I reduce the throttle to minimum and I hear as the escs accepts the calibration and saves the values to the ESC6. Then I disconnect the battery from…See More
Sep 19, 2014
Veikko Vierola replied to Daniel Lachance's discussion I'm Stuck! Help would be appreciated...
"I think this is the programming guide to sky III 30ax4 http://www.szfvt.com/uploadfile/20134191736555439.pdf"
Sep 19, 2014
Veikko Vierola replied to Daniel Lachance's discussion I'm Stuck! Help would be appreciated...
"Hi, did u manage to get the 30ax4 working with pixhawk. I have had some issues with esc calibration. I can calibrate the escs but after I restart pixhawk it seems like the escs goes to cal mode again?????"
Sep 18, 2014

Profile Information

About Me:
RC/UAV enthusiast.
Please tell us a bit about your UAV interest
UAV technology, GPS, automation, solar power, electric motors, datalink.

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Veikko Vierola's Blog

Dual APM UAV

Posted on June 20, 2012 at 2:20pm 40 Comments

I was thinking about an idea of a redundant UAV with 2 x APMs, 2 x RXs, Dual Servos/surfaces, 2 x ESCs and 2 x motors. The plane should be designed so that it could fly with only one motor if needed.

The idea of functionality:

  • If something in APM(A) network fails or works…
Continue

Design post #1

Posted on November 19, 2011 at 3:00pm 5 Comments

I'm planning to put my old and new ideas and designs to this post for commenting. Here is one of them.  It flies quite well and the wing is…

Continue

Comment Wall (1 comment)

At 7:25pm on November 19, 2011, Kenneth Duffek said…

Hi Veikko,

The camera used was a Canon 5D MarkII 21Mp 14 second exposure at iso 3200.

 

Ken.

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