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What CAD software are you using and why?

Simply:

What CAD software are you using and why?

Me:

For 2D

I use Solid Egde 2D Drafting  - free version

It's "free" (you need to register). I tried many of CAD programs, both free and full versions (including Autocad, Microstation, QCad, VariCAD.....) an

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Ardu and other UAV electronics in 3d

I've searched far and wide with no luck. I'm looking for UAV electronics as 3d models. Autopilots, gps, batteries, servos, receivers you name it. Anything electric that a UAV needs to fly. I need it for payload space planning.

Can anyone help?

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Camera Gimbal control with APM2

Using a 2 axis gimbal on my quad I am finding that the APM2 under AC2.5.x is too slow to respond and creeps as it is centering.  The calibration is set up but there seems to be some dampening in the control as it approaches its target position.  Has

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Gimbal Control in 2.5.x

My APM2 quad flies very well.  My gimbal control works well also, and with the advanced settings have calibrated it to stabilize my gopro OK.  But the movement is slower than other FC's I've used, more noticeably around the center position.  It acts

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Unable to arm hexa

I recently updated my 9x to er9x. Ever since doing so I am unable to arm my copter. I've run the radio calibration and it's picking up all my inputs just fine. Everything on the radio end seems to work fine with my planes, but it won't arm the copter

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GPS Backup power?

Is it possible to power the GPS whilst not powering the rest of the board?

I see pin 4 on the MT3329? (I think its that model? comes with the APM2.0...)

is used for backup power, can this be used to power the board in between changing batteries or befo

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apm2 and MPU6050 DMP... question?

Hi, I have a doubt. The APM2 have a MPU6050 and this sensor have a DMP for fusion accelerometer gyro and external magnetometer.

My question is, Why in the source code not use the DMP of MPU6050 ? but use the traditional software DCM ? ... maybe is DMP

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