"@oliver - thanks for your comments. Towel is an excellent proposial. I will test it and try to convince my wife on the safety."
heikki.tukiainen's Discussions
One motor + ESC heating up + yaw wobble
Started this discussion. Last reply by m00se Aug 6, 2012. 7 Replies 0 Likes
I have been fighting with this for a sometime and I am running out of options. Problem: Right back motor + esc heats up. No other motor or esc heats up. On left yaw wobbleTests done:changed esc…Continue
heikki.tukiainen's Page
Latest Activity
Crashpilot1000 commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"Now i have a good RC logo idea: http://www.ritterruestung-handgeschmiedet.de/deutscheversion/werdegangharnisch/bilder/riefelharnisch.jpg
Too bad the logo competition is over!"
Oliver commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"Unless the main batteries are physically disconnected you're looking down the barrel of a loaded gun, no matter how many parameters, switches, failsafes etc.are set this way or that. The problem with most every multicopter is that in order to…"
Jason Dorie commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"Thanks for sharing this. I'm sorry it happened to you and I wish you a quick recovery, but I'm glad you took the time to remind the rest of us. I have been developing my own quad for some time, but it was this post that…"
Daniel Allen commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"Thanks for sharing. This actually happened to me when I disconnected the APM UBEC while powering the quad. The props started spinning for about 1-2 seconds. I didn't get hurt at all, I'm sorry you suffered damage."
heikki.tukiainen commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"@Muhammad Makes sense. And I bet Simonk (=no filtering of signal) does not require long signal to spin motors. In my case it was very high trottle for short period & that was enough."
Muhammad Al-Rawi commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"If I'm not mistaken, when you power up the controller, the uC pulses outputs for a very brief moment, not intentionally by software, it just does it for some reason. If your ESCs are armed when this happens and this pulse falls somewhere in…"
criro1999 commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"@Crashpilot1000: Now I know it did a big mistake trying to load a different param file during the copter arming (I did not have any failsafe setup). But I am sure that the majority believe that throttle down means not motors acting (which is not…"
Crashpilot1000 commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"@patrice: The main difference is that arducopter is still armed (10sec or so) if the rotors stop, a NORMAL configured multiwii is disarmed when motors stop, that is safer.
@criro: That was a bad idea. Writing parameters may be different, but keeping…"
heikki.tukiainen commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"Thanks for support!
Can someone explain how motors can start at full speed when powering FC? How that can be prevented?
My accident scenario is easy to reproduce. What is the propability of my accident? Someone should setup a secured test bench....…"
criro1999 commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"Hope for a good recovery.
I did have also an unpredictable situation with Arducopter, APM2.0, after I did arm, then I did try to load another set of parameters from a separate file (when it was armed...), and this cause the copter to start at full…"
patrice.rance commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"this cannot happen with multiwii !"
Muhammad Al-Rawi commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"Ouch. I hope you have a smooth and speedy recovery!
Checklist is definitely a must. Can't tell you how many times I've bitten the bullet for trying to get in a quick flight. "
Don Shappelle commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"+1 Euan on the checklist. In the "heat of the moment" one can easily forget to shut off all necessary components to ensure safety. "
Euan Ramsay commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"I would add that simplifying your craft makes for safer/simplier startup/shotdown procedures, and less chance of human error. Less power systems, better design, better packaging, less components.
If your craft complexity is essential,…"
Crashpilot1000 commented on heikki.tukiainen's blog post OctaV: Small accident & key learnings"My best wishes for your restitution. Perhaps thats why i implemented a killswitch in my own copterproject - i really got used to it after landing - killswitch and nothing in the world will rearm this thing unless the next powercycle. Even if i would…"
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Heikki.tukiainen's Blog
OctaV: Small accident & key learnings
Posted on May 16, 2013 at 4:00am 17 Comments 3 Likes
I wanted to share my experience to help & protect you all. No multicopter is worth personal damage & stitches.
Background
We have been building & testing ardu-based octa-V craft. Part of the challenge has been power usage / high amperage. Orginally we used 3S, but changed motors and went to 6S. Target being lower power…
Continue OctaV Ecilop-style Gimball testing
Posted on April 21, 2013 at 11:00am 3 Comments 3 Likes
Our OctaV project is progressing. Now it was time to test the gimball with Gopro. The end result was surprisingly good.
We still have challenges with the basic flight. The amperage is quite high - 2x 20C 4ah 3S lipos are at their limit. We could add some more copper to few spots or good solution could be to go straight from 3S to…
Continue Octa V maiden
Posted on March 31, 2013 at 12:00pm 9 Comments 2 Likes
Our target is to have a multicopter
- to capture smooth video --> choose to make a flying steadycam
- to have redundancy for safety--> choose an octa / 8 motor configuration.
V-frame was chosen over X-frame due to better fit with with steadycam.
Arducopter works fine - we have noticed 2 bugs with…
Continue Happy New Year 2013!
Posted on December 30, 2012 at 9:33am 5 Comments 7 Likes
It has been a wonderful multicopter year!
Thank you DIYdrones & ArduCopter & all the member of the community!
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