DrJB Posted February 22, 2014 Posted February 22, 2014 (edited) There is a much easier alternative, but works for a single wire/tube ... or maybe few, but they must be bundled together. This can be done rather 'easily', without any complex seals/rings ... and how do you would solve this? It's a classical problem (with solution) in mathematical topology ... http://www.eurobrick...=0#entry1832795 Edited February 22, 2014 by DrJB Quote
efferman Posted February 22, 2014 Author Posted February 22, 2014 sorry but not every mathematic solutions makes sense in real live, or why do you think the crane manufacturers ad a slew spool for thousands of euros when this is so easy to solve? a turntable without a slew spool must be blocked after 2 and a half turns to prevent the hoses to die. btw drehkranz mit durchführung von efferman auf Flickr Quote
Alasdair Ryan Posted February 22, 2014 Posted February 22, 2014 Can you make a stl file please? Also can you make sure the sizes are in mm. Quote
DrJB Posted February 23, 2014 Posted February 23, 2014 (edited) If you're 3D printing the turntable, why make it in 3 separate parts? You can get away with only 2 (and that might bring the cost down). Of course, if the parts were injection molded, you would not be able to assemble them. Edited February 23, 2014 by DrJB Quote
efferman Posted February 23, 2014 Author Posted February 23, 2014 (edited) for the big turntable it is the most stable solution and the risk of popping out without a collapse of plastics is zero. the smaller turntable is not so safe with its two parts, and during asembly the part will be stressed. alasdair, here are the files. https://www.dropbox....urchführung.zip the dimensions are in mm and in the textfile i have some dimensions as reference for your printing service edit: edit² need a bucket for 8043? bucket von efferman auf Flickr Edited February 23, 2014 by efferman Quote
Alasdair Ryan Posted February 23, 2014 Posted February 23, 2014 To make that bucket it will be about £150. Quote
Alasdair Ryan Posted February 23, 2014 Posted February 23, 2014 Sure? Well no,its a guess but remember the price is according to the amount of material used. Quote
Saberwing40k Posted February 23, 2014 Posted February 23, 2014 Have you considered using Shapeways to make these parts? Or is that what you're already using? Quote
efferman Posted February 23, 2014 Author Posted February 23, 2014 No i use a german print service Quote
Saberwing40k Posted February 23, 2014 Posted February 23, 2014 Okay, I would think that Shapeways would be cheaper, though. I think you should give it a try. Quote
efferman Posted February 23, 2014 Author Posted February 23, 2014 Strange, it seems that my software makes an error in when it converts the model in stl and stp. So a diameter of 88 mm will be printed 8,8mm in diameter. Or is this the intention of autodesk to prevent an non school use? Quote
weavil Posted February 23, 2014 Posted February 23, 2014 It could be the non school use... Because some software made for students is cheaper, but has few features. Like the file types supported that only pertain to training/learning of the software. Quote
D3K Posted February 23, 2014 Posted February 23, 2014 I remember that being a problem with Pro/Engineer and Creo Parametric as well, where I couldn't take a model from my laptop (pirated software) to the desktop I used at school... These are very expensive programs, so I see why they might place piracey protection measures all over the place. Quote
weavil Posted February 24, 2014 Posted February 24, 2014 They hear the students cry about price, then they offer a discounted version as "Home/Student" and leave ,what they feel as, basic functions of the software. This happened with Microsoft when they released Office 10 (I think) and something else. Usually pirated stuff has the same limits as the retail version that is pirated. If something is wrong the person who did the crack it at fault. Quote
DrJB Posted February 24, 2014 Posted February 24, 2014 (edited) Strange, it seems that my software makes an error in when it converts the model in stl and stp. So a diameter of 88 mm will be printed 8,8mm in diameter. Or is this the intention of autodesk to prevent an non school use? Could it be this: You have to make sure you use the correct notation for decimal point. In Europe, the coma (virgule) is used. In the US, the dot/point is used. I had such issue on something as basic as Excel, trying to open files I obtained from German colleagues ... Edited February 24, 2014 by DrJB Quote
efferman Posted February 24, 2014 Author Posted February 24, 2014 weavil, my software is not cracked. i have to learn a new job, because my leg is damaged permanently and i cant do longer my old job. DrJB, my inventor softare let me only use the comma d3k, there is minimum a permanent watermark on the files Quote
MrNumbskull13 Posted February 24, 2014 Posted February 24, 2014 If it's only letting you use a comma couldn't you type 88,0? Quote
efferman Posted February 24, 2014 Author Posted February 24, 2014 (edited) indeed, iam doing this actually for the big turntable and i minimize the material usage for shapeways edit, the turntable is available now at shapeways https://www.shapeways.com/model/1734360/heavy-duty-turntable-upper-part.html?li=my-models&materialId=6 https://www.shapeways.com/model/1734369/heavy-duty-turntable-bottom-part.html?li=my-models&materialId=6 Edited February 24, 2014 by efferman Quote
timslegos Posted February 24, 2014 Posted February 24, 2014 Effe, would you mind sending the small turntable to shapeways too? it seems dramatically cheaper than the other methods of printing. tim Quote
efferman Posted February 24, 2014 Author Posted February 24, 2014 ok, i will do it when my actual idea is ready Quote
efferman Posted February 24, 2014 Author Posted February 24, 2014 (edited) sorry for double post, but the medium turntable is available at shapeways. can please someone test it? https://www.shapeway...le&materialId=6 https://www.shapeway...le&materialId=6 Edited February 24, 2014 by efferman Quote
timslegos Posted February 24, 2014 Posted February 24, 2014 Looks like a great design, although are you sure it wont separate under load just like the old turntable? tim Quote
DrJB Posted February 24, 2014 Posted February 24, 2014 (edited) bbqqq did a turntable with 5 blades ... for a helicopter rotor/swashplate ... can that be updated/uploaded to shapeways? Thread is somewhere within the Technic subforum, but can't find it. Edit: Found the thread http://www.eurobrick...pic=90047&st=25 Edited February 24, 2014 by DrJB Quote
efferman Posted February 24, 2014 Author Posted February 24, 2014 iam not sure if it is bullet proof, but i think it holds much better than the original one Quote
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