Yep! I totally agree. I wish that the new versions of sketchup would not always default to the newest version to save. This is really why. This constantly causes me trouble when I go to use a computer connected to a CNC cutter I have access to. Have to remember to save as ver 2015 or it just doesn't work. And I suspect it's forced obsolescence, not a mandate that the versions be incompatible. Aaargh! Oh and Pilou, that 6 is exactly the kind of thing I'm working from! That much I have, it's when the center of the bottom loop of the 6 becomes a closed cone that I get my problems.

outer shell did bugsplat, I sent in the report... will have a look at why... I'm on an older mac, but v15 and Yosemite, so it's all up to date... john

Approach it another way... Make a solid component 'lump' that has the overall form, but without any 'holes'. Then within another component add smaller solid groups/components that form the removal 'holes' - use Xray mode and section-planes to see what you are doing 'inside'. Take care not to overlap or touch these parts, as that will compromise its future 'solidity'. When you are happy with the arrangement explode that container's contents, it should then report as a 'solid' in Entity Info. Then, use the Solid Tools to subtract that from the first 'lump'. You now have the 'framework' as a new solid group... You'll probably need to orient the faces so they are all 'outwards' looking... Save as you go - using components allow you to reuse what was done before, without deep undo's...

@magazines said: Does anyone know if that old version of Vray can be switched to a new computer and used with SU2014 (or 2013). Old computer is on the way out, I rarely use Vray myself but this would be of value to me to occasionally look at a quick render. You technically can install V-Ray 1.49 in SketchUp 2013, but its unsupported and if you do transfer the license to 2013 we cant help you if you have problems. We will happily help you transfer the license to any new machine running Sketchup 8 though! Email support@chaosgroup.com and they can help you out, its very easy to do. @magazines said: Should I pay the $ (edu is $140, cheap but not nothing) for Vray2 for SU and deal with the dongle? I only use this several times a year but if it really is miles better than the old version I may start doing a few more class days on it. The dongle is a limitation for us because for the labs, our IT dept prefers not to go this way. Can anyone clearly say what the major improvements are of Vray2 on SU? As far as I can tell it comes from the "RT" - is this a new form of the frame buffer and will it work well on 3 or 4 year old lab machines? Full disclosure, I work for Chaos Group as a 3D Artist on the SketchUp team. So obviously, I'm going to pitch you V-Ray for SketchUp. I wont lie, Thea makes a good product. They have some nice tools, and features. But, V-Ray is the industry standard, for both the Visualization and Effects industry and the Architectural Visualization industry. Companies like TiltPixel and NeoScape both use V-Ray for SketchUp and V-Ray for 3DS Max. The reason being, assets can be transferred between the two programs, and you would be teaching the product that is typically used in the architectural workplace. New features in V-Ray 2.0 vs 1.49: Faster rendering times Custom user made Proxies for large objects (trees, foliage, cars, people and other high poly assets) Real Time Rendering (RT) for fast scene previews and live model editing. Dome lighting for in scene HDR lighting More efficient lights Faster materials and material creation Batch scene rendering Better animation support the list goes on... Yes, unfortunately we use a dongle, and yes its a yearly subscription fee for V-Ray EDU, but this is better for new releases of the product because you don't already own 200 outdated licenses of it, you just resubscribe for the next year with the new product. With dongles if you are using only one seat of the product, its easier to transfer the license around. You unplug the dongle form your office computer, and plug it back in at home. Network licensing is just as easy. You can program a single dongle to have multiple licences on it that are checked our on a per-user basis. So a lab situation over a local network is not a problem at all. @magazines said: Is Thea an easier rendering platform for introduction - for quick results? Since rendering is far from the focus of the class, a rendering system that was closer to the easy intro quality of sketchup would be very useful. Plus no dongle for labs or my computer. Also the edu is almost half the cost of Vray, meaning if I got excited about using it in class I could pay for a copy for both my laptop and the home computer with Thea. Is the interface an easy transition for people who have experience with Vray? I agree with Edgar(Rodrigonotor). The concepts are all the same with every rendering engine out there, but not all engines are created equal. Weigh the pros and cons of the two products, and if you have any questions, please, feel free to pm me and we can email back and forth in person. I would be happy to answer any other questions you have.

A common thought or relationships between scale factors for length,area,volume is conceptually difficult to understand.Its also important and has some interesting practical applications.Weighing scale unit introduces these ratios from a range of perspectives,its end up looking at some practical applications.

Thanks for the response. Most flat map projections of the earth are unusual projections. Such as mercator or divided near the poles at the latitude lines. But, yes global maps with cities are pretty easy to come by. I've attached a good one for the use. Can you point me in the direction of wrapping it on a sphere? Funny thing is that I would think that this is quite common - such as news bureaus would need a global 3d map with cities. But I guess most of those use google earth now. Sorry for the size of the map! Thanks [image: cTmI_mc-eur-072945_150_ai_2.jpg]

Yes, there is always glue. I am definitely expecting to shore up these joints with glue if necessary. I'm not an engineer, so I'm not sure if glue alone is a superior method of joinery with ABS. Do you think so? I would expect that a dowel that was then glued would work better. The snap idea came out of the possibilities of the material - really it seems like a component that could just be added to the edge of a wall or end of a protrusion, on which one could add another part. Both sketchup and 3d printing seem unusually appropriate tools for this kind of a feature. No connector? Just drop one on there before printing! Also, I am trying to figure out the best way to use these materials and their potential. Since a print taking up most of the 6x6x8" bed is taking on the order of 30 hours; I kind of want to utilize the parts to their highest potential. Has anyone seen anything like this out there in downloadable components? Anyone have further advice - would glue alone be superior? Or can anyone critique my designs? Thanks!