Mark Elen
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Everything posted by Mark Elen
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Hi Gents, Thank you all for your kind comments. Nigel, I do have a wire bender, but I'm not confident of getting the bend in exactly the correct place, hence the engineered axles. I will weigh a couple of collets and a chunk of wire and see how it compares. Once the steering mechanism is complete, I will upload a video of it in operation. I got a bit more done last night and today. I glued the two laminated formers in with epoxy, they had both contracted by about 1/8" so needed gently splaying out whilst they dried: Then i got the small strips and bits and pieces done ready for when the ply arrives and I can get it cut and on Its getting a decent size now: Lastly, I got started putting a few laminations of soft 1/16 on the outside of the front former, this is to compensate for the rake and most of it will be sanded off, leaving just a fillet to glue the planking onto: Cheers Mark
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Today I have got the rear formers slimmed down and in. Here are the ones shown on the plan as solid that can be cut down on the scales before: 20 grams. Here they are after: 7 grams. That's 13 grams or just over half an ounce saved. Cheers Mark
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A bit more done the last couple of days, I have got the top sheet on to the nose, I didn't have any 3/4" soft sheet, so I raided the scrap box for the softest sheet that I had. I ended up laminating the front end. Its a bit agricultural, but nobody is going to see it. Don't look too closely at the above photo. I did most of this after I had had a pint or two..... One of the upsides of laminating that top sheet, is that it has allowed me a good view of getting both sides somewhere near symmetrical when it came to sanding down the curves. There is a bit more to come off this, but I will leave this now for just before covering, if it gets dinged during the build, it wont matter so much. I also put up a couple of photos for some inspiration: The above will be my chosen scheme. I also made a start on the bracket for the nosegear steering pushrod. I have had to order a 2mm slot drill, so here is the embryo bracket without the slot: Cheers Mark
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Hi Danny, Many thanks for your kind comments. I did think about doing something similar to that, but as it retracts forward and the servo is forward of it, it didn't work mechanically. I got the servo bracket made up and in, then had a couple of hours with the mill and got the final bits made and they are temporarily in, I just need to make a small bracket with a slot to hold the pushrod in the correct orientation while it moves. Nearly there. Cheers Mark
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The next job on my list is to sort out the noseleg including a means of steering it. Whilst in the middle of my last build, I was thinking about this and found this on YouTube: **LINK** I made this up a while ago, though, I am going to re-make the blocks out of aluminium to save a bit of weight: There is still a bit more to do on that, but the principle works and I'm going to carry on with the concept. I wanted to see how much slop it would have in it, surprisingly, there is very little. The gear legs didn't come with any axles, and I don't fancy bending 4mm piano wire, and, getting the bend in the correct place, so this morning I have made an axle for the noseleg, out of a piece of 8mm silver steel that I had kicking about: 6 grams with a M3 grubscrew and a M3 nyloc. I'll take that. Cheers Mark
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