Simon Chaddock Posted March 15 Share Posted March 15 shepeiro Looking good. Still find it hard to believe it will come out to sub 60g. I would not worry about the extra resistance due to extending the battery to Rx wire. It is not as if it will be carrying a huge current. It is normally poor contact in connectors than generate electrical resistance. Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 15 Author Share Posted March 15 I have same worries tbh but so far weights have come out close to calculated. current weight of fuselage and wheel is 8.5g. tail feathers was 2, wings were around 2 each if I remember so we’re at around the 15g mark electronics we’re about 23g covering say 2g so we’re at the 40g mark. But we have at least 5g of stuff still to come So don’t think it will come out at calculated weight of 45g but think I should fairly easily hit 50g which will still be 10g under donor weight. the 2mm strips of ply are surprisingly light which most of the frame is down to thickening to 3mm around joints to help the slots hold rigidly enough to give it enough accuracy. again think glue is the biggest unknown. Think I could have lightened the fuselage by using thinned wood glue instead of CA esp as I’ve run out of good tips so was a little on the heavy side in places. Now the frame is rigid though rest will be white glue. 1 Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 16 Author Share Posted March 16 Some progress lots of little jobs (everything’s little on this) wings and tail feathers are all sanded and ready for putting together. Need to decide on colours befor I can progress with that though!!! Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 16 Author Share Posted March 16 Currently sitting at just under 14g Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 16 Author Share Posted March 16 Mixed news tonight though. Build coming on, paused putting stuff together to do a dry run of the electronics positioning. Going to have to do some alterations to the internals but nothing too bad. Worse was when I plugged in servo to see which direction it needed to be in to make sure it’s not inverted (won’t be able to flip with tx) the servo arm just kept spinning! Will need to rectify this before I can go much further unfortunately. Anyone have any idea! Never had this happen before Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 16 Author Share Posted March 16 Otherwise starting to look ship shape 1 Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 16 Author Share Posted March 16 Took servo apart all the gearing is fine including the pentonemeter whotsit seems to be connected in properly. What I did notice was that it occasionally worked as it should when the connecting wire was in certain positions so think there is some connection issue though I couldnt see anything further. slightly worried that it may be a signal issue from the rx but this is only system I have that uses the five wires servos so can’t test that theory. have bought new servo off Ali express so will find out in 9-16 days 😞 Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 18 Author Share Posted March 18 Wings are on, nacelles frames on wing all looking fairly true so far. 2 Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 18 Author Share Posted March 18 Dry run with electronics. servo started working. No idea why not sure if I trust it. all the wires stretch just about but think I want to raise the rx up off the floor a little so it’s bang on the cg 3 Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 18 Author Share Posted March 18 @Simon Chaddock it’s currently at 40g! 0.5g of props a carbon rod and a few bits of wire for the elevator control might be another g rest of the stringers another 0.5g perhaps and covering 2g. Might get in just under 45g. Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 18 Author Share Posted March 18 Might even add the led light bars at 1g extra. Not quite sure where I would put them though Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 23 Author Share Posted March 23 Motor nacelles “planked” 1 Quote Link to comment Share on other sites More sharing options...
Simon Chaddock Posted March 23 Share Posted March 23 Well done! Those nacelles are very neat. I like the temporary(?) struts to hold the planking in place. 1 Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 24 Author Share Posted March 24 Cheated as I unfolded the form in 3d and laser cut the result. meant I could wrap the center section around the formers and then just tack the ends with Ca so was quite quick. May try this technique on larger models. temporary struts are my wife’s dress pins (need to get my own) Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 24 Author Share Posted March 24 Filleted, sanded and shaped might need a small amount of filler 3 Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 25 Author Share Posted March 25 Rx installed. due to the positioning of all the wires and the fact it has stabilisation meant I wanted it to be pretty sturdily suspended. I think it is but added an extra half gram add to that the light strips (1 more gram between them) I’m going to be coming in a little heavier than I had hoped. now the rx is installed I can finish off the fuselage. Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 27 Author Share Posted March 27 Fixed servo with a rewrire. Everything installed. Broke all the stringers finishing the electronics so had to start again Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 27 Author Share Posted March 27 Quote Link to comment Share on other sites More sharing options...
shepeiro Posted March 29 Author Share Posted March 29 Started to cover the tail. Finished off detailing around wheel, battery compartment and wings. 1 Quote Link to comment Share on other sites More sharing options...
shepeiro Posted April 1 Author Share Posted April 1 Been figuring out decoration. Not 100% on it yet but right direction Quote Link to comment Share on other sites More sharing options...
shepeiro Posted April 1 Author Share Posted April 1 Better Quote Link to comment Share on other sites More sharing options...
GrumpyGnome Posted April 1 Share Posted April 1 Very nice! I think I'd wait until a successful maiden before adding the green.... just in case you need some mods... Quote Link to comment Share on other sites More sharing options...
shepeiro Posted April 1 Author Share Posted April 1 Probably correct to do so but will be a pain to do the tail once it’s glued so was thinking I would at least design it and add the tail while it’s flat. Then leave the rest till post maiden Quote Link to comment Share on other sites More sharing options...
shepeiro Posted April 1 Author Share Posted April 1 Also going to try laser cutting tissue design. Anyone had success doing this or tried? not heard good things but am going to see if it’s possible to do it and get a clean cut and no material ignition. Wet tea towel at the ready 1 1 Quote Link to comment Share on other sites More sharing options...
shepeiro Posted April 1 Author Share Posted April 1 Ok after a bit of tweaking the answer is YES you can laser cutting tissue designs!!! Quote Link to comment Share on other sites More sharing options...
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