Brandy Posted April 10, 2021 Author Share Posted April 10, 2021 I had a small problem with the rims in that the top edge where the supports attached) was a little irregular. I'm not sure if this was due to too few supports, or that the attachment area was too small, but it appears that either the resin has drooped a little between the supports, or the weight has pulled the resin where the supports were attached. Either way, they have cleaned up ok and the rims don't appear to be too shallow at that point. You can see the problem at the top of this pic. I cleaned up and drilled all 8 that were printed, so I have a couple of spares if needed. So, 84 holes per wheel, 8 wheels, means I have just drilled 672 0.3mm holes! Fortunately the indents had printed sufficiently that the location of the drill was a simple matter. Ironically, it turned out easier to drill from the outside, as per @CedB's suggestion earlier, and with the rims being fairly thin, accuracy on the inside surface wasn't affected. It took about 20 minutes per wheel if anyone is interested, from removal of the support structure, to drilling and final clean up. All 6 with hubs.... I may start on the spokes tomorrow, probably with a first row attempted on one of the spares - just in case! Have a good weekend, and thanks for looking in! Stay safe, Ian 8 Link to comment Share on other sites More sharing options...
hendie Posted April 10, 2021 Share Posted April 10, 2021 4 hours ago, Brandy said: So, 84 holes per wheel, 8 wheels, means I have just drilled 672 0.3mm holes! about 0.5 of an F2b then? nice work Ian. It's always fun trying to get a good clean edge on the surface where the supports connect. It's hard to tell from the photo but as you suggested, it could have been down to too few supports 1 Link to comment Share on other sites More sharing options...
Brandy Posted April 11, 2021 Author Share Posted April 11, 2021 (edited) Before I dive in and start the spokes I thought I'd give a quick explanation of what I intend to do (Yes OK, I'm delaying it!) just in case anyone else wishes to do something equally as silly! The holes in the centre row are offset to be in the middle of the front and rear rows, which are level with each other. The spokes will be fitted by threading invisible mending thread through one hole, going clockwise around the hub, then out another hole. This will give me the opposing angles of two adjacent spokes and the order here is crucial. First off, hole 1 will be marked for the rear row. Hole 1 on the centre row will be one hole clockwise from it, and hole 1 on the front row will be one hole clockwise from that to give the staggered appearance. This may make it clearer... The spokes are in groups of 4 and will be threaded in the following order, the numbers representing the holes that each thread will pass through at each end (eg the first thread will run from hole 1, clockwise around the hub, and out through hole 14) 1 - 14 5 - 18 9 - 22 13 - 26 17- 2 21 - 6 25 - 10 3 - 16 7 - 20 11 - 24 15 - 28 19 - 4 23 - 8 27 - 12 and they will be fitted in exactly that order to ensure they cross correctly. I hope that explains it. I don't think I can delay any longer - see you in a while! Ian Edited April 11, 2021 by Brandy Grammar 6 Link to comment Share on other sites More sharing options...
perdu Posted April 12, 2021 Share Posted April 12, 2021 Yikes 3 Link to comment Share on other sites More sharing options...
Brandy Posted April 15, 2021 Author Share Posted April 15, 2021 I finally stopped putting off the inevitable today and made a start on threading the spokes. I fully expect the first wheel to take a while as I find a method that works. To that end, I first did a dry run of the inner row of spokes. The plan was to attach all the wires then go back and tension and secure each one in turn. Here is the first half done That looks promising. At least it appears to be symmetrical. I continued with the second half of lines and got this. A couple of problems showed up. Firstly it was obvious that my intended method was not going to work, I would have to attach each line and secure it as I go. Second, I need to ensure that the lines are pulled into the hub properly at each side. Not a problem until about 4 lines from the end when it gets a little crowded and the lines have to be pulled in at both ends to ensure the geometry looks right. If that is not done the angles on the hub are all wrong. That can be seen on the pic above - the triangles formed by the spokes around the rim are even but around the hub they are very irregular. I'm also a little worried about having room for the middle row. You can see from the pic below that the hub has spread where the spokes have been fitted. The middle row should fit in the slot just in front of those already done, but the slot has closed up. It will be interesting to see if the lines will fit! Here's the second fitting, with the wires secured. That looks a little better, although the inner geometry is still off. I'll do the middle row tomorrow and see how it looks. I have a feeling I may have to resort to thinner line to get it all to fit! Thanks for looking in, stay safe! Ian 9 Link to comment Share on other sites More sharing options...
hendie Posted April 15, 2021 Share Posted April 15, 2021 blimey, that looks a bit complex. 1 Link to comment Share on other sites More sharing options...
Bengalensis Posted April 15, 2021 Share Posted April 15, 2021 Good progress so far! 1 Link to comment Share on other sites More sharing options...
CedB Posted April 15, 2021 Share Posted April 15, 2021 1 hour ago, hendie said: blimey, that looks a bit complex. A BIT?!!! Still, a minor challenge for a rigging expert… 1 Link to comment Share on other sites More sharing options...
Terry1954 Posted April 15, 2021 Share Posted April 15, 2021 This is all becoming rather splendid Ian. Very impressed with everything you are doing to this old kit. The end result will be a feast for our eyes! Terry 1 Link to comment Share on other sites More sharing options...
Brandy Posted April 16, 2021 Author Share Posted April 16, 2021 I was going to continue this today but thought against it as I think the line I'm using is too thick. I measured it (as accurately as you can measure something like this!) and it looks to be around 0.15mm. I have ordered a variety of new lines: 0.08mm, 0.09mm, 0.1mm and 0.12mm and when those arrive I will remove what I have done above and start again. I think the 0.1 will be the one to go for here, which is what I had thought it was at the beginning! Ian 4 Link to comment Share on other sites More sharing options...
Michael Church Posted April 16, 2021 Share Posted April 16, 2021 @Brandy, I just looked at your photos at the start of this thread of the toy-like wheels that came in this kit, and where you're heading is absolutely staggering in comparison. 1 Link to comment Share on other sites More sharing options...
Sabrejet Posted April 17, 2021 Share Posted April 17, 2021 Absolute madness. I love it! 1 Link to comment Share on other sites More sharing options...
Brandy Posted May 13, 2021 Author Share Posted May 13, 2021 Right, since I have 4 days off, I have decided to go for it. Full steam ahead and damn the eyesight! (Or something like that!) Using thinner line of 0.1mm I started again. Two rows have been completed on the first wheel and all appears to be ok. The hub has distorted slightly due to the thickness of the lines but I don't think there's anything I can do about it so I'll take it as it is. Here's the wheel as it is now, front row still to be fitted You can just see the lighter colour around the edge of the hub where it has bent forward slightly. I don't think it will be too noticable though. If I do this madness again I may make that part of the hib a little thicker. and a comparison between the first one (with the thicker line). It definitely needed to be thinner. I need a beer! Thanks for looking in, and stay safe! Ian 10 Link to comment Share on other sites More sharing options...
hendie Posted May 13, 2021 Share Posted May 13, 2021 I never realized MC Escher worked for Mercedes. I should really try this when I eventually get around to my old Airfix 007 DB5 1 Link to comment Share on other sites More sharing options...
perdu Posted May 13, 2021 Share Posted May 13, 2021 When I do my DB5 I will not be doing thees! Blimey Ian that is outstanding, phew all those wires... 2 Link to comment Share on other sites More sharing options...
CedB Posted May 14, 2021 Share Posted May 14, 2021 Great stuff Ian - your poor eyes! That beer is well deserved… 1 Link to comment Share on other sites More sharing options...
Brandy Posted May 15, 2021 Author Share Posted May 15, 2021 As ever, another pause has been thrown into this build. I decided that it might be a good idea to paint what I have done so far to see how it looks. I'm pretty pleased with that, but it is clear that the hubs needs to be reprinted with a slightly larger gap for the threads to stop them bending forward, and I will make the front edge a tad thicker too for the same reason. I think this one will be OK as one of the spares though. I tried to sign into my desktop and found that the keyboard batteries had run out AGAIN! They were only put in 2 weeks ago! Since there is no on/off switch on the keyboard I can't do anything, but it's costing a fortune in batteries so I have ordered a rechargeable keyboard and mouse to replace the HP wireless ones I have. Once I have those I'll be able to reprint the hubs and continue this! Thanks for looking in, and stay safe! Ian 7 Link to comment Share on other sites More sharing options...
CrazyCrank Posted May 15, 2021 Share Posted May 15, 2021 stunning job, Ian 👍 1 Link to comment Share on other sites More sharing options...
Terry1954 Posted May 15, 2021 Share Posted May 15, 2021 Very impressive work continues Ian. It all looks extremely delicate. Remind me what you are using for the spokes themselves? Thanks Terry Link to comment Share on other sites More sharing options...
Brandy Posted May 15, 2021 Author Share Posted May 15, 2021 1 hour ago, Terry1954 said: Very impressive work continues Ian. It all looks extremely delicate. Remind me what you are using for the spokes themselves? Thanks Terry Hi Terry, it's 0.1mm (2lb test) monofilament fishing line. Ian 1 Link to comment Share on other sites More sharing options...
CedB Posted May 16, 2021 Share Posted May 16, 2021 Looking good Ian - great work Link to comment Share on other sites More sharing options...
Brandy Posted May 16, 2021 Author Share Posted May 16, 2021 I finished off the first wheel today just to make sure no more changes would be needed on the hubs. just for the heck of it I placed one of the knock offs on it... I think the proof of concept is a success, I just have to wait for my new keyboard to reprint the hubs. Hopefully it won't be too long as I have another couple of days this week with no duties during the day so I could get them done then. I'm almost tempted to forget about doing Carracciola's race car and do a generic car - the chassis lightening holes are wrong for his car anyway, and I could then paint the hubs and spokes white so they can actually be seen! Thanks for looking in, and stay safe! Ian 9 Link to comment Share on other sites More sharing options...
hendie Posted May 16, 2021 Share Posted May 16, 2021 Great job on that wheel Ian. That looks fantastic 1 1 Link to comment Share on other sites More sharing options...
CedB Posted May 17, 2021 Share Posted May 17, 2021 Seconded! Amazing work - and patience 1 Link to comment Share on other sites More sharing options...
PhilX Posted May 19, 2021 Share Posted May 19, 2021 Awesome job on this spoke wheel. I like it very much ... 🙂 1 Link to comment Share on other sites More sharing options...
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