Seb
Full Member
Posts: 101
|
Post by Seb on Apr 1, 2005 10:26:55 GMT -8
Hi ! Here are some other photos of my « work in progress » :<br> As you know I’ve had some problems of hollow with another platform so I wanted to make a strong one that would allow me to sculpt other models in the future. Now you can see the result (upside down), aluminium armature, fixed with epoxy glue ( easy to use, fast and SOOOO strong ). This new platform is very flat. Then I made the grid and put a coat of automotive clear to give it some protection. On the last photo you can see the foam block glued on the plinth fixed on the platform with double-sided tape and a screw at the centre. Steve don’t say me the foam is too much square !!! ;D ;D I started to shape it this afternoon, it’s almost done so I’ll show you the result tomorow or Sunday. Everything is coming ok, the only thing I’m not very sure concerns the under area of the model, especially on the sides. I suppose we’ll use a template later to cut the clay clean. The side template has no “end” on the lower area. For sure it’s not important right now. See you soon ! ;D Seb
|
|
Seb
Full Member
Posts: 101
|
Post by Seb on Apr 1, 2005 10:36:43 GMT -8
Héhé you can also see a floor protection...... sometimes the place end up a little messy, especially with the foam dust ! Seb
|
|
Seb
Full Member
Posts: 101
|
Post by Seb on Apr 2, 2005 1:24:12 GMT -8
Hi, As promised some pictures of the shaped foam core. I checked with the templates that I’ll have about 10 mm of clay everywhere. The extruded polystyrene ended up being very fragile, even with sand paper…<br>Not a big deal, tomorrow it will be under the layer of clay More pics soon. Seb P.S.: Steve, I shaped the foam very quickly so the corners are pretty square. It’s ok because I checked a good amount of clay will cover all the surface, but I was wondering if there’s any difference between making the core’s corners square or making them smooth like you did ? With my newbie modeller’s brain I tend to think square corners will hold the clay better on the core… another detail question héhé. ;D Cya
|
|
|
Post by prabhat on Apr 3, 2005 22:28:22 GMT -8
nice work Seb!!!
|
|
Seb
Full Member
Posts: 101
|
Post by Seb on Apr 3, 2005 23:07:02 GMT -8
Thanks Mate How is your model going ? Hope to see your work soon. See ya Seb
|
|
Seb
Full Member
Posts: 101
|
Post by Seb on Apr 4, 2005 8:20:32 GMT -8
Hello Steve, today I’ve dragged in the body side. I’ve tried different ways, doing it when the clay is hot, when it’s cold etc… after this new experience the feeling has definitely improved. I’ve found a good temperature that gives a good consistence and easy dragging. Very nice to see the surfaces coming alive So my question of the day is : When the body side or template is dragged in, do I have to fix the surface if I have some little scratch or little wave, until it’s perfect ? Or is the surface I’ve dragged just made to give a general idea ? I suppose it will be worked again later with finishers and other tools, right ? Thanks More images tomorrow. Seb
|
|
Seb
Full Member
Posts: 101
|
Post by Seb on Apr 5, 2005 9:17:33 GMT -8
Heya ! New day new pictures, this time with a first challenge ;D. As you can see I dragged in the bodyside, everything was perfect until the moment the template had almost finished to remove the excess of clay. At that moment I was dragging the side template and this sort of tearing appeared ( photo 3 ). The surface temperature was around 30°C. What can I do to avoid this problem ? At this early stage is it really a problem ? Maybe I didn't wait enough for the clay to be at room temp. , maybe I should waid the day after but then the clay will be so hard ! If I have to add some hot clay to touch up the surface, could you please explain the exact process to do it properly ? Indeed when I add some hot clay to the surface, it just delaminate when cold again…. I tried to warm the surface before adding new hot clay and it’s better , but then the surface becomes messy because it’s warm….. I’ve also tried to warm the clay more than usual ( about 70°C) and add it quickly to the surface ( at room temp.) so the surface wouldn’t get destroyed, but still get some delaminating… any solution ? Sorry lots of questions, I just want to improve as much as possible. See you soon, looking forward to know what you think about my work so far. Thanks Seb
|
|
|
Post by Steve Austin on Apr 7, 2005 8:12:10 GMT -8
Hi Seb, You have certainly made good progress over the last couple of weeks. In answer to your questions over the last couple of threads. The foam block doesn't have to have round corners but I tend to round them off to eliminate any chance of the clay cracking at a possible weak point. If you have put a full skim of clay over the foam buck in one shot then this will also reduce the chance of any possible cracks developing. In this scale it should never occur anyway but in a full-size, more attention has to be paid to the buck construction to ensure that the end product is as crack free as possible. When dragging in the surfaces, the clay needs to be at the working temperature from the oven for the best results. As the clay cools, the surfaces will tend to tear on the back edge of the template but this is not really a problem because ultimately the surfaces are going to be finished with steels anyway. This can be reduced by using a heat gun to maintain the clay working temperature while you are dragging the form in. Any ripples in the surface are also a combination of trying to remove too much clay at once and the reduced working temperature of the clay. If you can keep the working temperature good then this should improve the overall appearance that you're looking for. You will find that there will be a certain amount of shrinkage due to the amount of clay being added. If you are trying to repair an area, rough it up with a rake or heat it up with your heat gun then re-load with clay and drag in the shape. You will still find that there is going to be a little bit of a mismatch because you are patching an area. When loading the clay, make sure that the clays are similar in temperature and that you push it firmly into place otherwise this can be a problem with delamination. Keep up with the good work and I'm going to have to start on my scale model again as things are moving right along now. Steve A
|
|
|
Post by prabhat on Apr 7, 2005 9:57:23 GMT -8
hi steve ( and Seb)
I have dragged in the side and top profiles ( will upload the pics soon). wat is the next step after this?
Cya Prabhat
|
|
|
Post by Steve Austin on Apr 8, 2005 7:08:57 GMT -8
Hi Prabhat, Check on page three of the scale model competition, if you have reached the same stage as I am showing then I will progress my model and upload some images in the next week or two. You need to have the basic forms all blocked in then we can continue to the next stage. We will be cutting in the wheel openings and attaching wheel flares. These early stages are all about obtaining volumn then we can get into the refining of the shape. Keep up the good work. Steve A
|
|
Seb
Full Member
Posts: 101
|
Post by Seb on Apr 8, 2005 7:39:51 GMT -8
Hi Steve, thanks for the advices . Indeed today I’ve worked on the model again and it went out very good. It is obvious that it was a problem of temperature of the clay. I’ve also found out that there are differences from a type / brand of clay to another, so I need to learn to get the feel of it. I didn’t change much things on the left side because you said it wouldn’t be a problem later. Just smoothed a little bit with the template and that’s it. I hope you’ll have the time to answer to new questions cause I have a LOAD of them héhé. ;D Lots of them concerning the tool building so I’ll post in the general area of the forum. If you are ready I will launch the “question of the day” concept everyday with short questions needing short expert’s answers. I think the volumes of my model will be blocked before Monday, so I’ll post pics and then I’ll build some tools waiting for your model to be at the next level. Now let’s go back to work See you Seb
|
|
|
Post by prabhat on Apr 8, 2005 9:46:26 GMT -8
Yes Steve, i have already completed all the stages that u have shown pictures of. Wat next???
|
|
|
Post by Steve Austin on Apr 9, 2005 13:45:09 GMT -8
OK Prabhat, Give me next week to get the next stage started and I'll post information as quickly as I can. In the mean time see if you can post some images of your progress Steve A
|
|
Seb
Full Member
Posts: 101
|
Post by Seb on Apr 11, 2005 10:22:56 GMT -8
Hello Steve, The model is improving day after day, good learning because I make some little mistakes so I can learn how to repair them. Yesterday I was dragging the front template, and I was wondering what the proper angle between the template and the symmetry axis of the model should be. Is it better to keep the template parallel to the model axis all the way , or do you have to put the template always perpendicular to the ground template so it would move in a “circle way” ( English :/ ). Same question about the roof template : do I have to keep it vertical all the way or is it better to make the axis follow the curve of the template ? Maybe you have to cheat a little bit between the two ways I proposed ….? I’m sure it’s not very important for the c2 project anyway, but you should know there will be other projects !!! héhé. If you don’t see what I mean I’ll post a drawing . Thanks Seb
|
|
Seb
Full Member
Posts: 101
|
Post by Seb on Apr 11, 2005 14:18:52 GMT -8
Here we go, as we say a drawing is better than words. Same question about roof template dragging. I know it’s probably not really important for the current project, I simply want to know if there’s a better way to drag the templates. I noticed the surfaces are different depending on your choice between the 1st and 2nd way. So when you have to develop the surface of a concept drawing what solution do you use ? How do you make your choice ? The first seems to be more “logic” because it’s more like reproducing sections, but that doesn’t mean the second one is not the right way in some cases…? Maybe my real question behind that is : as a modeller, do you have more “liberty” than what we can think ? I’m sure I’m going to discover a lot of other situations where the sculptor needs to make choices. That doesn’t mean the model will be different, but if you look closer the surfaces will be just a little bit different. I’m talking about subtlety here. For sure there are details you won't discuss with designers because only the sculptor will have the skill to develop surfaces to get the best possible result. What’s your opinion doc’ ? I could speak about the subject for days and days, it’s so fascinating ! Thank you Steve Seb ( the surfaces lover ;D )
|
|