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Everything posted by tkay11
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I have found on the web a wonderful tutorial called 'LOFTING TUTORIAL: A ship hull in 3d' which you can download as a pdf file and which answers perfectly how to use TurboCAD to loft frames. I hadn't realised there was a function called 'lofting', but of course the moment I found it, a whole host of answers to my problem came at once. Thus 'prisms' are part of the lofting function. They all let you link different planes and points. Sorry if this is incredibly obvious to CAD users, but I'm posting this in case it's of any use to others who like me are starting up in the world of CAD lofting. Tony
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Cool tool lathe Unimat (moved by admin)
tkay11 replied to Sjors's topic in Modeling tools and Workshop Equipment
Sjors, I notice that when looking at the screen you seem to be writing your signature over and over again. Is this a sign of obsessive-compulsive disorder? It seems to be a hazard associated with model ship-builders. By the way, I reviewed the research I'd done before and if you do an internet search you'll find the same range of opinions which verge to: ok for wood, not for brass but ok for aluminium, expensive for what it is, ok for infrequent small jobs. Also Dave is quite right. The Unimats now sold have no relationship whatsoever to the original Emco versions of their lathes. The new 'classic' is made predominantly of a moulded plastic, whereas the originals were entirely metal. I hadn't realised that Frolich was using the earlier version, so thanks for that info, Dave! Tony -
Cool tool lathe Unimat (moved by admin)
tkay11 replied to Sjors's topic in Modeling tools and Workshop Equipment
I'm sure others will be much better qualified than I to answer this question. I'm only chipping in because I was at one time very interested in getting one myself and in MSW1 there were lots of discussions about this. Most of the comments I saw were fairly negative about it, citing lack of precision, the business of re-assembly every time you wanted a new function and its lack of power. The general opinion seemed to be that it was better to go for individual cheap tools. Thus some Chinese-made lathes were touted as being worth-while. On the other side, I have noted that Bernard Frolich in his book 'Art of Ship Modeling' used a Unimat jigsaw, and others have used it quite happily. It may well be that for irregular use and small jobs (such as the ones we generally have in modelling) it is more than adequate. When I was looking at it, I thought more of buying the slightly more expensive metal line set. However in the end I spent my money on a circular saw as I thought that was what I was going to use the most. I'm still hankering after a lathe, though, but there's no room. And that's one good reason for a Unimat -- when there's not much room. Looking forward to the heaps of replies you're going to get! Tony -
A few things I found on the Proxxon FET when setting it up: 1. I use a digital vernier caliper to make sure the fence is square by measuring the ends from the side and using the depth gauge. Once set up it seems to stay perfect 2. I use a cheap comb for African hair (just over £1) as a featherboard. It was simple to get it to a 2mm dimension simply by running it through the saw. It will probably go finer if I bother to cut it again. The handle it already has is perfect for holding, and so far I haven't needed to angle it by cutting across the base. 3. I oiled all the screws on the adjustment slide to make the adjustments really work smoothly (and I don't have it centred as it is the offset that matters). The micro adjustment works well for me now. 4. I made sure the saw was really vertical by using a set square and then clamping it securely. I don't intend at the moment to do angled cuts, so that seems fine. 5. I'm using the 50mm blade, 0.5mm thick with 100 teeth (Spring Steel Cutting Blade Ref: 28020) that comes from one of their other saws as it has a much finer kerf than the one supplied and, because of its smaller diameter, really does go below the table so that you can raise it to any level you want. The regular blade at its lowest comes to about 1mm above the board. I'm still learning how to work this thing nicely, but it seems to be doing the job just fine! However, I am aware that others using this saw have complaints about its level of precision and the amount of time you have to fiddle with it to get it just right. Tony
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Yes, indeed that's it. And it works fine for lines. The only trouble is that when I try to do exactly the same with a perpendicular, the supposed perpendicular falls away at a variety of degrees depending on the position of the mouse instead of to the opposite surface and it doesn't snap to anything except to the start point. The object itself as a whole is at right angles to the world view plane and is on that plane. However, your drawing showed me the obvious solution -- just to draw a line down the middle of the beam using the M snap. This has solved the problem I was faced with. So it's like a lot of things. It's an oddity, but luckily I have two good workarounds now! If you know what I'm doing wrong, then of course I'd be glad to know. However I would hate to have you bothered by ferreting around when it's now no longer a problem. Thanks a lot for the help and encouragement, as well as for solving my problem! Tony
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This is one thing the UK has right. You can buy them by the boxful here without any questioning from any online store, including eBay. Tony
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It's the bottom of the keel, as per the attached picture. It's not that I don't have a work around, since I can draw lines on the plane to which I can attach the keel. It's more that I want to find out how to put in a centre line in order to align it with the keel line I have made on the drawing. For some reason, even though I try to make the workplane conform to the facet (highlighted in the drawing) I can't get a line tool or a perpendicular line to work as I would wish in relation to the drawing. I would point out that the lines are exploded and not part of any group. You'll notice that in this drawing the stem has multiple nodes. I'm correcting this in a new version. Also ignore the keel on the section that is lying across the keel at the bow, since that was there only for alignment purposes. Thanks, though, for looking! Any suggestions welcome. Tony
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Thanks so much for the reposting of this wonderful build. It's as beautiful as it is inspiring. Any chance of your reposting the pictures of the longboat build for this model? I am trying to do a longboat for my own model at the moment, and it would be great if I could have another chance of looking at yours. I have been using layers of MDF as you did, and started carving out the shape. I forgot to leave space for the frames, so there's a bit more sanding being done at the moment. I seem to remember you covered your longboat in clingfilm to stop the frames being glued to the mould, but it would be great just to have a look at the overall sequence again if at all possible. (Hoping I haven't somehow missed your reposting of those pictures when going through your log), Tony
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I second Wayne's comment about nodes. At first I was tempted to use too many as it is so easy just to follow the path and click. But the trick of a smooth outline is to use as few as is possible -- two if possible (one at either end). As for being the first person to make a simpler hull in TC, I've already done that. The only trouble is that it's not quite watertight as it has no planks. Still, Wayne's right -- you only get there by sticking at it. Tony
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There is a lot of videos on YouTube for TurboCAD. The ones by Paul Tracey gave me the initial kick-start for the 3D side. His list of free training videos can be found if you click here. They are very easy to follow and they certainly eased the learning curve. In terms of the manual, I agree the web links can be confusing. The pdf version is a little easier to navigate. You can choose to read the pdf version if you go to 'General' in the 'Options' tab and choose 'Use offline help' in the menu. I've also just downloaded the free version of SketchUp. This is a very much simpler programme to get the hang of, more intuitive and has a much cleaner and nicer interface. Although SketchUp clearly does not have quite the range of TurboCAD, you'll see from the modelling done on the site with SketchUp is quite fantastic. The only limitation I have found so far in experimenting with SketchUp is that you can't load pdf files into it. You'd have to convert pdf to jpeg for importing (unless someone more knowledgeable tells us otherwise). So my advice would be that if you feel TurbCAD is too much, switch to SketchUp for an easier ride which may well give the same results. As for me, I'm still undecided -- having invested so much time in learning TurboCAD! Looking forward to anything you produce in any programme, Tony
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Wayne, that's still pretty cool. I reckon I can approximate this with a series of 3D polygons, which I guess are prisms. Anyway, I'll have a bash. Your suggestions and your pictures have given me much encouragement -- I especially like the boat as that gives me an idea of what I should be aiming for. I'll have fewer seats and no cannon on mine, though! Thanks very much Tony
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Thanks, Jingyang. I can render and shade surfaces of enclosed spaces. What I'm stuck on is how to get the 'assisting curves' stage you show in your first picture. Attached is where I am so far. I can then make the keel, stem and stern with no problem. Oh, and I've just noticed from my own picture that I've put the stern section at the wrong station line. Still, you'll get the idea! I can't quite figure out how to mould the sides of the sheer plan to the central line of cross sections. I reckon it must have something to do with tracing the waterlines from the half breadth plan as those are the lines that I can see on your first picture but I still haven't attempted that. However, now I've seen your pictures I'll have a bash later today. Also I don't understand what the top curved line over the boat on the body sections represents in the plans since it is an open boat. Thanks also 'capnharv2'. Yes, I've studied Kemp's article but it presumes you're using the CAD to generate plans from which to make a wooden model. It doesn't go into the 3D creation. I'm using TurboCAD Pro 18 which I got by chance for almost nothing from a friend who gave up on it. As you can see it has the rendering facilities, but I thought all versions of TurboCAD had them as well. Thanks again for so much help so quickly! Tony
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I have been so impressed by the wonderful quality of the CAD builds on this site that I have been trying to teach myself how to convert the 2D plans to 3D in TurboCAD. I've been doing this by using the 2D plans of the longboat on the Cutter Alert based on the Anatomy of the Ship book. I had been using the 2D plans to make the longboat in wood, and that is taking its own course. However, I am stuck in the CAD programming when trying to figure out how to obtain the 3D hull shape from the verticalised sheer plans. So far I have been able to flip the sides and move them together with the horizontal waterlines and body plan to obtain a box, but I can't quite fathom how to form the hull from this point. The instructions for using CAD on this site refer to 2D lofting (as far as I can see), so if anyone can point me in the direction of instructions on how to move to the next step of 3D creation from plans I'd be very grateful. The essential reason for my interest is (1) to be able to continue to do some form of ship building in a practical way while I am travelling (something which I have to do for a very large proportion of my time) and (2) to visualise plans in a new way. Any pointers most welcome for this two-fold 3D novice! Tony
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HMS Pandora 1779 in 3D
tkay11 replied to ppddry's topic in CAD and 3D Modelling/Drafting Plans with Software
It's wonderful that we're having so many great CAD builds on this site. The meticulous precision and attention to detail throughout are just as awe-inspiring as some of the physical builds. Brilliant work, Jingyang, and thanks so much for taking the time to show us the build. Tony -
Just to add to the chorus of praise, I'm delighted you're doing this log in such a detailed way. It really shows how much cross-fertilisation there is between the types of build, and that there are in fact so many different ways to build a ship. I'll be following this one right through to the end. Great stuff! Tony
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If you look closely at my pic, Sarah, you'll see the smile is accompanied by the knowing wink of recognition of enjoyment and its source. But maybe the resolution is not good enough --- you'll just have to take my word for it. Tony
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What fun, Sarah! This one really brought a smile. I much look forward to the rest. We'll have to keep a watch on Sjors' translations though - he might have the temptation to slip in a joke or two! Tony
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I've used Liberon wax filler sticks used in furniture repair. It's really easy to apply and wipe off. These wax fillers come in a lot of shades so it's easy to achieve the right level of difference from the wood of the planks, and provides a subtle effect. I had this tip from Daniel when he was on MSW 1.0 but I've seen a few others do this as well. I did try melting it into the holes but it turned out to be just as easy to scrape a few fragments off and wipe them into the holes. Tony
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It used to be owned and given free by Google. It was then sold to Trimble who have a two-tier system. There is a free version and a version you have to pay for which has more features. You can find it by searching for 'SketchUp'. Wikipedia has an entry for the programme. If you want a direct link to the download site, click here. I believe most CAD programmes will do the same. Tony
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Of course you are right, Carl. There will be a market for printed books for a long time. I myself like reading from a printed page last thing at night in bed. However I am trying to make the case that the market for ship modelling books also needs to include the need for stuff that can be seen on screen and only the relevant pages printed if needed. Part of that is the need for lower cost material, but to my mind there are also other factors. You correctly point to the fact that it is something habitual to read a book. However people are now coming into ship modelling whose main experience has been use of computers, video games and screen-base phones. A very interesting example of this is the complete build of the Cutter Alert only with SketchUp (a CAD-type programme). If you go to the CAD forum you'll see the skills of 'SketchUpModeller' whose only build is in SketchUp. WIth this new, exciting and highly skilled generation (and SketchUpModeller has expressed an interest at some time in the future in wooden modelling) it surely would make sense to have low cost screen-based materials to use. Apart from that, I am very happy to read material onscreen even if only for short periods. As I said, I can then print off what I need for constant reference. I certainly wouldn't take away from the sheer pleasure of a beautifully printed book. The question is how much that is of generational and cultural conditioning? I don't know the answer to that. Tony
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We still haven't had a reply about the possibility of pdf versions of books (or even e-books) whether or not they are published in Europe or America. The world is changing in the way we use books. A huge amount of my reading, research and study (even for my mainline job and for medical research) is online now. I don't think we'll get over high costs of shipping of heavy books (in fact I'll be waiting for an American friend or colleague to bring me books I may want from the USA). Printed medical textbooks are now in decline, but of course there is still a large market for them in countries with low internet access. I should imagine a high proportion of people involved in ship modelling are in countries where internet access is very high. More important is whether or not people who publish books about model ship building can focus now on a more economic format online. The quality of the pictures would in fact be better on line than in a printed book (screens have a higher dynamic and colour range than is possible with printing). This site has itself shown the redundancy of a lot of printed books. The books I am really interested in in relation to ship modelling are the 'how to' books. Not expensive paperweights that will essentially remain on the shelf once looked at. The SeaWatch books fall into the category of 'how to' books. Why they should not be in a cheaper online format defeats me. The costs of publishing would be lower, the number of people who purchase potentially greater, the profit margins left substantially the same or even greater since there are never any publishing re-runs to fund. I do understand I may be naive about the costs of online publishing, but then the point of my post is to understand why it may be difficult to switch to this form of publishing. Tony
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It's certainly not out of print. I just bought a copy from Ancre which was delivered in very quick time. Note: no shipping charges in the EU. However, having studied it, I would think it is more valuable to the advanced modeller who already has some experience in using the techniques and tools portrayed since these are very much in shorthand in the book. In terms of practical suggestions on individual steps in the process of building a model at my stage of the game, I think my main sources, in order, have been (1) this site with its enormous reservoir of help and demonstration from people who are both generous and selfless, (2) 'Historic Ship Models' by zu Mondfeld, (3) Underhill's two volumes on Plank on Frame models (definitely only second-hand now). The other books I have found useful at my stage of learning have been the Anatomy of the Ship series on the Cutter 'Alert', and George Bandurek's book on Super-Detailing the Cutter Sherbourne (which used to be a log on this site). I also wasted money on about three other books which gave almost no detail or instruction and were pretty much just pretty pictures -- or the level of instruction was so basic as to make me sigh with frustration. All the same, I am happy I bought Frolich's book and I do use some of the suggestions he makes already (e.g. the building of a ship's boat -- although I am supplementing that with much better detail from this site). But the fact is that when I want to look at some of the detail of each step of the construction I have found the resources on this site by far the most valuable. Please bear in mind these comments are only those made by a novice builder. It may well be that I come to appreciate the value of Frolich's book much more as I progress. Also others will have their own priority list of resources -- especially as they may be coming to the subject with a great deal more practical experience than I have. If you can get a second-hand copy of Frolich and are at the same stage of the game as I am, then it truly is worth having -- if only to gawk at the amazing workmanship he displays. On the other hand, I can say I am equally stupefied by some of the builds I have seen on this and other fora for free. To my mind, achieving such craftmanship is not only finding others to show you some of the tricks (which you can do almost entirely using the posts and resources of this forum), it is also the sheer painful slog of trying it all out for yourself. That is what I am finding, and equally enjoying. I suppose my bottom line is that if you are hard-pressed for cash, then think carefully and try and see a copy before buying books. They are very expensive! Tony
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- Bernard Frolich
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That was a real pleasure, Ray, to see the complete build. A lot of useful pointers for my Sherbourne which is a very similar ship. A beautiful model. I'm looking forward to the Diana. Tony
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