Femto X Quad

[Kayle]

Hello,

today i finished my Femto X Quad. I has a "Wingspan" of 8cm and uses Motors from the X-Twin. Receiver is a Deltang RX35 DSM2 and the flight time with a 100mAh Lipo is around 3 minutes.

Femto X Quad

More Infos: http://www.kay-pohl.de

Kayle

[miniquad]

Very nicely made.

[Bob K]

Awesome work! What are you running for your PID settings?
Are you using any motor tilt?

[Kayle]

Hi Bob,

PID Settings are default. Only the D - Term of Pitch and Roll i have reduced to 10. I don´t use any Motor tilt.

Kayle

[forsakenrider]

What changes have you made in the code to use the mosfets?

[Kayle]

What changes have you made in the code to use the mosfets?

I did no changes, because i use the wii 1.8 brushed version.

Kayle

[forsakenrider]

I am trying to use that version too and after I arm the board the motors start, is this normal? does yours do this too?

[Kayle]

No, i must arm before. Check your mini throttle !!

Kayle

[miniquad]

Quick question: how did you do those nice VIAs on the pcb? From the look of it, the pcb seems to be home made.

[Kayle]

Hi. Yes the pcb is home made. The vias are made witch "durchkontaktiernieten". Sorry, i don't know how to descripe it in english

Kayle

[miniquad]

Ah..very interesting. I didn't know those type of pcb contact rivets were readily available. It does making double sided DIY pcbs a little bit easier; you don't need to solder thin wires through the vias anymore. Do you need any special tool to put the rivets in place?

[Kayle]

Yes you need a tool like this:

http://www.google.de/imgres?um=1&hl=de&sa=N&biw=1400&bih=883&tbm=isch&tbnid=HqP0g-zTKp4tbM:&imgrefurl=http://www.lpkf.biz/Verbrauchsmaterial/Durchkontaktierung/Manuell/&docid=Pu7-oe2SNEIYnM&imgurl=http://www.lpkf.biz/out/pictures/0/110760_th.jpg&w=100&h=86&ei=aie2T-noKMfb4QSZp4XgCQ&zoom=1&iact=hc&vpx=220&vpy=408&dur=1458&hovh=73&hovw=85&tx=101&ty=45&sig=111147375184216753822&page=1&tbnh=73&tbnw=85&start=0&ndsp=24&ved=1t:429,r:6,s:0,i:84

Kayle

[forsakenrider]

Did you change the code to work with 1s? sometimes my quad freezes and the only way to fix it is to re-upload the code and use a fresh battery. Usually it happens when the battery is nearing depletion.

[Kayle]

I don't change the code. My atmega runs at stable 3,3v during a buck/boost converter.

Kayle