Robert Rundle 1
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Printed out the tyres, think they came out OK and pretty squidgy as well. The TPU took some getting right, as it kept kinking into the hotend.
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Finished hubs and tyres, printed in varioshore tpu
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Is it an issue with every roll or just one in particular?
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Thought it was about time for another update. As you can see, I have made a bit of progress, but just not had the time in the workshop recently. All of the major components have now been glued together, I have been using Medium CA which works a treat, especially with some kicker. I have discovered my glueing skills arent great, so had some cleanup post glue. But nothing some dcent sandpaper didnt take care off. The wing proved most challenging, with four of the 5 section lined up prefectly and the fifth with a slight angle, but nothing too horrible. You might notice in the picture, that I have added extra support into the wings. I purchased some 5mm x 1mm carbon rod and glued it in, top and bottom of the wing. Hopefully this will reduce any likelilhood of it folding in on itself. I rubbed each surface down with some 800/1200 snadpaper, just to smooth it all off a bit; I primed the surface with Rustolieum primer, not sure it necessarily needed it, but a light spray was used. I am now painting up the rest of the model using Montana black spray paint. I have printed off the motor mount in Petg and currently printing the tyres in Colourfabb Varioshore TPU. I have used the same settings for the TPU as I did for the LWPLA as a starting point, so will see how that works. My target is to finish the painting this week and then final assembly and electronics in for a maiden next week/end.
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I was needing to replace a tyre and hub on a 45" extra that I have and came across this design. I am in the process of printing out the tyres at the moment using Colourfabb Varioshore TPU, but did the hubs yesterday in Petg, as it was loaded and the springiness of the hubs seems quite impressive. Btw. Print the tyres first, which can be scaled to suit and then use the same scaling to print the hubs. makes it easier I'll feedback on the success of using them. https://www.printables.com/en/model/117975-a-spring-loaded-rc-plane-wheel-that-really-works/files Rob
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Thanks for all the great advice. I don't know what direction I want to head with my flying, but currently just to get to a decent club level with b test sounds a good target. I learnt on and currently fly on a nitro Wot4. I do have some other planes in the hanger, but nothing to extravagant just yet. Electric 45" extra 300 and seagull challenger.
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4 channels currently. But not great use of the rudder in the air.
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So having just passed my 'A' test with my club, what would people recommend in next steps in terms of flying? Thanks
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Simon, there is nothing specified for re-enforcement. But certainly lots of people suggest its necessary. The wing pieces are printed vertically, so the filament effectively wraps around the wing. Hopefully the carbon rod I put in, will help the strength and keep it intact
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I haven't fully kept count of the hours, but probably somewhere around 40. I just set the printer going and leave it to it. I'm not in a crazy rush to get it done, so speed is not of the essence.
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I am still printing at 240C, once all the components are completed, I will do a weight test to see overall weight pre-assembly. I did have contemplate, whilst sorting the blockage in the nozzle out, to swap out the hot end for the high temp version, but decided to keep it simple for now and consistent and then do some more filament tests later and add to the calibration set.
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Progress is being made. I havent done any clean up on the parts yet, but generally the prints are coming out well and should with a bit of light sanding should be nice. Test fits without cleanup are ok, tight as to be expected, but everything is lining up. I did get a blockage on the printer nozzle. I tried turning the retraction on to .5mm, but I just dont think it agreed with it. Nozzle unblocked and retraction back off. I have had one failed print, which was the first flaperon I tried printing, but that may have been due to the blockage. I ordered the power train components from 4-max, using the eclipson website recommendations to get as close as I could. They all arrived quickly, which I am not needing just yet, but thought to get ahead. I also popped in to Mantua Models my LMS to grab all the other fixtures and fittings. I have also ordered the lightweight TPU for the wheels, and PETG for motor mounts. I also came across some flight experiences on other forums, there is apparently the likelihood that the wings fold during flight. So I have purchased some 5mm x 1mm carbon strip to glue into the wings, just to give a little strength, especially at the root.
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Simon, I'm printing at 240C. I don't have the hot end extruder on my printer yet, so the max it will go to at present is the 240C. Once I have done this plane, will swap out the normal extruder for the hotter one. At this current temp I was getting at 1mm off .4mm nozzle and through extrusion ration getting it down to .5mm.
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For a £30 reel of filament, which will cover the build of this plan probably twice, it will definitely be an interesting test and learning expereince. i am just a hobbyist with the 3D printer, so its a learning curve for me as well. If all goes well, I have a raft of other planes I want to print, so probably need to learn to fly a bit better first ? But I do think, that for this hobby to survive further, it has to embrace new routes to plane building. Youngsters are less interested in balsa and covering films, but show them it printed, painted and flying..
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Just by way of a little hint, it was suggested to me not to have any Retraction set, as there is a risk of clogging with LW-PLA. All of the calibration and prints have been without retraction. It probably leads to a slight more cleanup at the end, but so far everything running fine with the prints.