"Make the top canopy from diolen and the rest from CF/kevlar/twaron. That way the GPS has got a window to the sky and the external aerials can send and receive.
Plus if you set the failsafe to RTH you shouldnt go down.
My b12 comes out in all…"
Rob Haines's Discussions
XRF telemetry link delay
Started Apr 18, 2012 0 Replies 0 Likes
Hi, i'm having about a 10min delay from plugging in the XRF to the laptop and being able to establish a stable connection. Pressing connect on the mission planner as soon as the XRF is plugged in to…Continue
Rob Haines's Page
Latest Activity
Rob Haines replied to Dan's discussion Space frame X8"Look up Twaron too. Its a hybrid weave of CF and black kevlar. East coat fibreglass and easy composites both stock it. Someone stocks a black kevlar here in the UK too.
I had a similar idea but couldnt get the X8 at a reasonable price. There's…"
Rob Haines replied to Dan's discussion Space frame X8"Kevlar laminates fine with epoxy. I use it all the time and have no delamitation problems. However it can be a b!tch to cut!
CF will block RF however there is a material called diolen that looks like CF but doesnt have any electrical properties and…"
Rob Haines replied to Randy's discussion ArduCopter 2.7.2/2.7.3 released"OH!
MY!
GOD!
What have you guys done?!?! This is fannytastic!!!
Dumped my Y6 and rebuilt a hex. The difference is night and day!
WOW well done!!!!!"
Rob Haines replied to Adam Kimberlin's discussion Ducted Fan Design: Is It Worth It?"I gave this ago a couple of months back mainly to protect the props but i didnt research the science behind it all. It's a 30cm duct to fit a 12" prop. It was U shaped to begin with but locked itself on to the mould. Had to trim it in to a…"
Rob Haines replied to Terry Brooks's discussion Selling my APM2 in the group UK Ardupilot Group"Terry, I'll take it if still available. Im back in the UK early next week. Can we arrange something then?"
Rob Haines commented on Dean Wynton's group UK Ardupilot Group"I've not familiar with the 3dr radios but on all transeivers you you should have a Tx and RX. One the air unit link these connections and power it up. Now with the ground unit connected to a laptop connect a terminal program to the port the…"
Rob Haines replied to Darren Stan Oakley's discussion Help What Xbee modules should I get ? in the group UK Ardupilot Group"In the UK we need the 433Mhz units. 900mhz is used for the 3G mobile network so OFCOM would throw the book at you if caught."
Rob Haines replied to Darren Stan Oakley's discussion Help What Xbee modules should I get ? in the group UK Ardupilot Group"They appear to be in stock here...
http://unmannedtechshop.co.uk/UAV-Components/UAV-telemetry/3DR-433mhz-Telemetry-Kit
Note: i have no affiliation with them. Just my regular supplier."
Rob Haines replied to Darren Stan Oakley's discussion Help What Xbee modules should I get ? in the group UK Ardupilot Group"Im using these on 868mhz. Ive not managed to get my Y6 out of range.....yet!
I hear the 3DR radios on 433mhz are excellent and the config is builtin to the MP
Personally i wouldnt touch xbee with the current offerings available unless you had some…"
Rob Haines commented on Dean Wynton's group UK Ardupilot Group"Hi Dudz, here's a pic of my Y6. I've make some landing gear from carbon fibre. There's about 5mm of clearance from the props. I've then duck taped fibreglass rods in a X while im learning.
When i get a spare couple of hours ill…"
Rob Haines commented on Dean Wynton's group UK Ardupilot Group"Absolutely Martin, so long as woven glass is used correctly there will be a large amount of strength running along the direction of the fibres. The CSM (shop strand matting) in fibre glass kits has very little structual strength and relies heavily…"
Rob Haines commented on Dean Wynton's group UK Ardupilot Group"I make all sorts from the stuff.
Please dont get me wrong, im not passing judgment on the frames.......yet;) They look ace and im sure they've been developed for the application. It just bugs the hell out of me when i see what's supposed…"
Rob Haines commented on Dean Wynton's group UK Ardupilot Group"Carbon has high tensile strength but it's very brittle and cannot take much in the way of shock and would catastrophically fail. Adding a core such as closed cell foam would make it too thick. Adding a core like soric defeats the object of…"
Rob Haines commented on Dean Wynton's group UK Ardupilot Group"Martin, very nice carbon frames. I was looking at making something myself but have been tied up with other things,
What is the finish of the carbon like? I've seen close up pics of the top domes before and was full of pits.
Any idea on the…"
Rob Haines replied to eric's discussion UAV Design"So would that make up a closed profile? You may be ok if it's closed and the 2 parts are bolted/glued to together. I've just used a alloy spacer and bolted the 2 sides together but because of the small contact area it still …"
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