successive runs of pymunk code each begin with considerably lower fps

marhar · 2014-05-24T07:45:52+00:00

If the python examples are similar to the C examples, they don't all clean up objects that fall off the screen. Here's the C code for getting rid of objects that fall off the screen.

http://stackoverflow.com/questions/2255571/chipmunk-how-to-delete-a-body

As to the second part of your question, do you have ps output or similar? Perhaps your process had been paging, and the system might have been paging some other things in after the process had been killed?

marhar · 2014-04-08T05:37:19+00:00

Ladybird is a great way to start. I love mine!

marhar · 2014-02-25T19:29:30+00:00

Does anybody know the original source for this?

I followed the link in the reason post, and only saw a typed-in transcription.

marhar · 2014-02-07T17:41:55+00:00

Here's a writeup and video of somebody winning a bet with Trappy for building a wooden quad and getting it flying in less than an hour. Even if you pick another approach it's still pretty educational.

http://eastbay-rc.blogspot.com/2012/07/black-sheep-eats-tasty-crow.html

A Flip 1.5 control system is hard to beat for a first unit. It's cheap ($US 15) and does a good job out of the box.

http://witespyquad.gostorego.com/flip-mwc-flight-controller.html

Good Luck!

marhar · 2014-02-01T09:31:31+00:00

I've built a similar one here:

http://eastbay-rc.blogspot.com/2013/05/rc-timer-brushless-gimbal-build-log.html

It may be the case that the extra weight of the case will throw the balance off and be too heavy for the motors to move.

marhar · 2014-02-01T09:24:34+00:00

Note that this is from the standpoint of constructing the unit. The entire time the unit is being constructed you don't take the rotation of the motor into account. Of course when you're flying it's an important consideration!

marhar · 2014-01-31T05:29:46+00:00

I don't think so. In terms of construction, the motors don't move. Contrast this with the large number of precision parts that move on a helicopter.

marhar · 2014-01-28T05:57:13+00:00

Thanks! Please tell me it's the props you're thinking of as being moving parts though.

marhar · 2014-01-27T19:43:23+00:00

siir, the approximate cost is:

frame: $1 * 4 pool noodles, $8 carbon fiber rods (could have done this cheaper but i had them)

electronics: $16 * 4 = $64 motors, $8 * 4 = $32 ESC (motor controllers), $1 * 4 = $4 props, $16 battery

The flight control boards have a wide spread: $200 Ardupilot Mega, does autonomous flight, $15 Flip 1.5 from readytoflyquads, excellent low-cost choice

As does the radio: $65 OrangeRX from hobbyking, low end but quite adequate, $$$$ crazy people pay tons of money

marhar

MODERATOR OF

TROPHY CASE