Jump to content

Martin Shoebridge

  • Posts

  • Joined

  • Last visited


Martin Shoebridge's Achievements



  1. Without limit switches, it's tricky. Do you mean no sort of switch at all ? i.e. opto as above?The only other way is to current sense, but that has it's own problems.... sticky gear mid way might indicate a down lock... All in all, it's no simple task, even for an accomplished electronics engineer..
  2. Worth a look...thanks. First time I had no extension lead. Then I fitted an extension lead and same thing, so maybe not........but I will look. One of my other thoughts was a faulty conection in the joystick assembly to the PCB in the TX. A broken/bad connection here will/can put the servo hard over one way or the other, depending on where the break is. ( +5 side or Gnd side.)
  3. I've just picked up on this...... I've had similar problems resulting is crashes, some terminal. The commmon fault is aelerons locking on full, spiralling the plane into the ground. 3 or 4 times now. It's an Arising Star trainer with Irvine 40 engine, Dx& Tx and 6200 receiver.It's not the servos ( replaced) It's not the receiver battery ( pretty sure). I think the most likely is a software glitch with the processor in the TX.Or possibly the receiver. I'm switching to a 5e and a different 6200 while I investigate further.  I did also experience throttle shut downs, but that may have been down to the engine/fuel feed rather than an electronic problem. I'm not looking for suggestions,as they are endless, but maybe hear from others that may have had the same thing. I don't buy the thing about not enough rubber bands. I have 8/10 fitted.All I was doing was circuits and landing appraoches. The last crash came 2 seconds after take off. No time to do anything.
  4. These seem quite god, claiming tohave lots of stock of cut kits on the shelf.
  5. Me too , given up. In the mean time, I've cut 10 sets by hand
  6. Exactly....... plus many more here http://www.rapidonline.com/Electrical-Power/Power-Supplies/Bench-PSUs/100W-Switch-mode-bench-PSU/78617
  7. A sequencer would be a nice project as it has several possible uses, not only undercarriage sequencing...
  8. LOL go to B&Q they have ( last time I looked ) 60/40 leaded solder.........  I agree, about 99% of gadgets now need software to make them work.The Electronics /hardware side is the easy part. The 'smartness' comes from the inginuity of the programmer. I also think that most avenues of our hobby are covered by the likes of Hobby City. If they don't do it, there's probably not a lot of demand for it..... so any new ideas are really hard to find for commercial ventures. But there are niche markets ( fishing buzzers) where ther is still a bob or two to be made. Engine synchronisers is another.... Competing with state of the art stuff ( from China) is entirely possible. There are always plenty of patriotic people that would rather buy from a (reputable) UK company , than save a few bucks by buying from China/HK.
  9.  I can design and make boards..... soldering SM chips is no big deal.Leaded or unleaded is no problem. Unleaded is nowhere near as bad as stated above. It just needs a slightly higher temperature to melt, not a welding gun..... Personally I favour Atmel AVrs...... but PICs are ok is you're a software sadist If anyone has ideas/projects, I'm happy to design PCBs and make production runs etc on a semi commercial basis. 
  10. You're lucky.... they didn't even reply to my quotation request.......
  11. James, could you pm me the spreadsheet for the motor calcs.... thx.
  12. LOL , no, it was after that.( I think) ........cluck cluck... sorry, I meant click click.
  13. I remember building a TX /Rx back in the 60's but the details escape me.....Ali box, pcb, lots of switches....
  14. I was sent this link by a mate.... Truly amazing. Puts a new perspective on 3D flying. Lucky pilot or a true  top gun? http://www.break.com/index/plane-loses-wing-in-mid-flight.html
  • Create New...