Tricopter - Scratch Build

[Andre]

Guess I should start a build page

 

[Foam Addict]

Looks great Andre!
I see you went with the coffin body as well. Good choice, its way stronger.

I have a few small issues with mine at the moment. If being unable to take off is a small issue...

 

[Andre]

I was just reading that.

I was having issues with mine the other day. It worked in the evening before and then after I changed the servo settings it would yaw out of control.

I reset the board to factory and did a better job of balancing/levelling the craft for calibration.

That said before I flashed the esc or balanced the props I had to do a "forced" landing and killed my $20 servo.

Interesting thing I found. I have to run the right prop on the left motor and the left prop on the right motor...

 

[multicopterfreak]

where have these lines for the camera tray to be? I can't find the distance anywhere!

(The lines wich are needed to glue the little wood pieces on the big piece.)

Thanks for you're help!

(Sorry for incorrectness im a swiss guy and still in school )

 

[Foam Addict]

I was just reading that.

I was having issues with mine the other day. It worked in the evening before and then after I changed the servo settings it would yaw out of control.

I reset the board to factory and did a better job of balancing/levelling the craft for calibration.

That said before I flashed the esc or balanced the props I had to do a "forced" landing and killed my $20 servo.

Interesting thing I found. I have to run the right prop on the left motor and the left prop on the right motor...

Funny, I just use three standard props. Other than a slightly slower yaw it flies exactly the same as the ccw and cw props.

 

[Andre]

That would make sense. Did you have to offset the rear motor a touch more?

 

[Foam Addict]

That would make sense. Did you have to offset the rear motor a touch more?

Yes I did, but no more than a degree or two.

 

[Andre]

Are the 2 front motors spinning inwards?

 

[Foam Addict]

I tried both and didn't notice a difference.

 

[Andre]

Odd because if the prop goes backwards it would push down vs up?

 

[Foam Addict]

Oh, I misunderstood you. I only tried those configurations with standard and counter props.

 

[Andre]

The nice thing is you can flip the rear prop either way and just change the wires.

 

[Foam Addict]

I just started rebuilding my tricopter from scratch. The only original components are the plates and bolts.



Andre: here is the amount of tilt I put on my yaw mechanism for 3 standard props.



EDIT: that looks like way more than I actually did. The angle is actually 6 degrees.

 

[multicopterfreak]

where have these lines for the camera tray to be? I can't find the distance anywhere!

(The lines wich are needed to glue the little wood pieces on the big piece.)

Thanks for you're help!

(Sorry for incorrectness im a swiss guy and still in school )

 

[tom_pixel]

Wooden Arms

David, on Positioning the wood arms , does the grain need to be Vertical or Horizonal?

Knowing wood, I would assume grain to be vertical


thanks .............te

 

[Foam Addict]

I've always used vertical, but my Tri has flown horribly for a while, so I don't know how much faith you should put in that...

 

[Foam Addict]

Well, I'm shelving the tricopter.

Today it was flying great for the first time in a while, with new vibration dampening on the FCB, but had a slightly aggressive P on auto level, so I lowered it 20% from 100 to 80.

Then, when I was doing simple patterns to get back in practice, I lost orientation, and hit AL. It kept going for about 2 sec, and had just started to level when she piled in. There isn't much left. I guess I lowered the gain to much, because it used to be very snappy in recovery.

Any way, all 3 booms broke, the frame cracked, the battery looked like a banana, and the motors were scattered all over. In a bit of irony, none of the props broke....

Still, as I am leaving for college in a week, I don't have time to order new parts, so I picked up a GWS Pico moth kit for my dorm instead, and will try to fix the tri around Christmas.

 

[etegration]

any tips on installing the yaw back motor? i keep breaking the thin wire or maybe worse soon, the whole tail assembly.

 

[Andre]

I'm getting some pretty low run times off the DT-750's on my tricopter.

Think I'm going to do some re-wiring and tests but I'm well into the sub 5min mark.

 

[lankyjames]

I'm getting some pretty low run times off the DT-750's on my tricopter.

Think I'm going to do some re-wiring and tests but I'm well into the sub 5min mark.

Weight, batteries, props and boom length?