About

Gender

Male


Location

Montefollonico


About Me:

Retired ex software entrepreneur now growing grapes and making bad wine in Italy


Hometown:

Montefollonico, Italy


Activity Feed

Paul Gregory replied to Mark Harrison's discussion xbee LED docs?
"I tried my 2.4GHz XBee system for the first time today.  As far as I can see, the BLUE LED indicated power on.  The two YELLOW LED's seem to be some sort of timing signal and the RED LED comes on when the modules are transmitting and receiving data.…"
Apr 21, 2012
Paul Gregory replied to Tops's discussion Telemetry kit: XtreamBee Board 4V on the 3.3V line!!! Xbee PRO S1 2.4Ghz burned
"I have a 2.4GHz kit from buildyourowndrones in the UK which I have just got working today.  With my initial set up, I measure 4.69V across the GND to + 5V pin (output from the AMP 2 board) and 3.67V across the GND to 3.3Vpin.  The 5V input pin is…"
Apr 21, 2012
Paul Gregory commented on Paul Gregory's blog post Building a UAV for photo mapping - Camera Selection
"Hi

I am afraid I got sidetracked into trying to build an autopilot - a great danger. The Cularis is neatly packed away ready for another period of spare time - which never seems to happen. Maybe next year.

Sorry I cannot be of any further help at…"
Oct 8, 2009
Paul Gregory commented on Chris Anderson's blog post Making a UAV fail-safe
"Just a slight note of caution. While adding an additional card for harware switching of servos can help recover from a software failure in a prototype autopilot, it could increase the risk of harware failure with all the additional wires, connectors…"
Jan 16, 2008
Paul Gregory commented on Chris Anderson's blog post Which Multiplex powered glider makes the best UAV platform?
"Well I am still plodding away with my Cularis, athough these posts worried me enougth to try balancing the nearly finished airframe. If you look at my latest post, you will see that it works fine with the Pentax A30 and PicoPilot set up, though I…"
Jan 8, 2008
Paul Gregory posted a blog post
I have now finished all the sub-assemblies of my Cularis, so before sticking the fuselage together, I decided todo a trial balance to check on the COG. Here it is, poised on the wingdimples. The airframe, with installed servos, but not motor,…
Jan 8, 2008
Paul Gregory posted a blog post
First I must thank Jeffrey Johnson who posted a set of images of the Cularis he is building for photo mapping. He has made a really neatmodification by moving the rudder and elevator servos from the stockposition in the cockpit, to tail mounting in…
Dec 26, 2007
Paul Gregory commented on Paul Gregory's blog post Building a UAV for photo mapping - Autopilot
"Hi Gwen

Having not yet tried any form of autopiot, my comments were not based on any practical experience - just trying to think through the issues. Certainly in the FMA instructions in the calibration section, it states.

" Measure the temperature…"
Dec 25, 2007
Paul Gregory commented on Paul Gregory's blog post Building a UAV for photo mapping - Packing it all in
"Chris

Sorry, I did not see the search bar as it got a bit lost up in the top right hand corner."
Dec 23, 2007
Paul Gregory commented on Paul Gregory's blog post Building a UAV for photo mapping - Packing it all in
"Jeff

Many thanks for posting the photo's. It's quite useful to know that the wings could fall off BEFORE loading the plane with camera, autopilot and other expensive stuff. I will check out RC groups as you suggest.

I also like the idea of moving…"
Dec 23, 2007
Paul Gregory commented on Paul Gregory's blog post Building a UAV for photo mapping - Packing it all in
"Chris

A Multiplex ESC with BEC come with the motor kit for the Cularis, but the instructions tell you to disable the BEC and use a battery instead as it does not give sufficient power for the 6 servos. I have now found several high current switch…"
Dec 23, 2007
Paul Gregory commented on Paul Gregory's blog post Building a UAV for photo mapping - Packing it all in
"This is my concern. I have already ordered the SportsBEC so I will try it out with the Rx efore deciding which route to take."
Dec 23, 2007
Paul Gregory posted a blog post
Ahh!! CRASH and BURN!!I had planned to use the Pico-Pilot and Pico-GPS for the autopilot in my UAV, but I have now discovered that since Jan 2007, they have been classed as MILITARY technology and are controlled by US Export License regulations.…
Dec 23, 2007
Paul Gregory commented on Chris Anderson's blog post The difference between our autopilots and those of the pros
"Any idea of the prices on the Crossbow unit? I have tried looking at the web site, but it only seems to have access for distributors."
Dec 22, 2007
Paul Gregory posted a blog post
The first image shows the recommended distribution of components for the electric version of the Cularis. (Click for higher resolution). In this configuration, the plane balances at the CGO with 3 weights (supplied in the kit) fixed under the tail…
Dec 22, 2007
Paul Gregory commented on Paul Gregory's blog post Building a UAV for photo mapping - Camera Selection
"Matt

I haven't quite got round to hacking the camera apart yet - that's a bit of lateral thinking I may need in the future.

Currently I am thinking of putting the camera in a fixed position inside the foam body of the Colaris without any…"
Dec 21, 2007
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