Arthur Posted April 26, 2018 Share Posted April 26, 2018 Wind driven has the issue of gust speed vs steady speed as shown here; IMO modern wind power has a blade and generator up in the air and sends electricity down, it also blights lots of countryside with the image of metal poking into the sky from nice rolling hills. Link to comment Share on other sites More sharing options...
Simoski Posted April 26, 2018 Share Posted April 26, 2018 (edited) 3D Max is a production graphics suite, 3d special effects for movies, physics simulations, thermal energy transfer simulations (fire), animation, Inverse Kinemtics, muscle simulatution, motion tracking, camera tracking... Trust me it can build a model that you can 3D Print and export it to stl Edited April 27, 2018 by Simoski Link to comment Share on other sites More sharing options...
Simoski Posted April 26, 2018 Share Posted April 26, 2018 (edited) Here an update Gentlemen that something is the capstan, which I must still design and print over the next few days Edited April 26, 2018 by Simoski Link to comment Share on other sites More sharing options...
Baldor Posted April 26, 2018 Share Posted April 26, 2018 (edited) 3D Max is a production graphics suite, 3d special effects for movies, physics simulations, thermal energy transfer simulations (fire), animation, Inverse Kinemtic, muscle simulatution, motion tracking, camera tracking... Trust me it can build a model that you can 3D Print and export it to stlCan be all you want. But is not a CAD program. And to design a machine you need a CAD program. Or a ruler and a compass. Trust me, I worked with real CAD programs and with 3DS. There is a very big difference, I will not try do make movie special effects in catia, nor design a simple part in 3DS. You will never have good meshes for slicing, since you are working with triangles from the start. Triangulation should be the last step. Edited April 26, 2018 by Baldor Link to comment Share on other sites More sharing options...
Baldor Posted April 26, 2018 Share Posted April 26, 2018 Ok, it is a prototype, but.... Plastic on plastic bearings????? Noticed the noise when moving it by hand? When motorised and under real load this will be a lot worse. And the bad surface finish only will make the problem worse. At least try to make the contact surfaces from different plastics. Make some PA6 or PTFE bushings. Link to comment Share on other sites More sharing options...
Simoski Posted April 27, 2018 Share Posted April 27, 2018 (edited) 3DS max is not a CAD program!!!!! No wonder you have bad tringulation, you are working with triangles from the start!No Baldor you're confused! I work from standard parametric primitives, spheres, cubes, cylinders etc. When the parametric object is exprted to STL, then it becomes trianglular faces. I don't spend hours moving vertices. I don't have time for that. The drip drip drip of that would be way too irritating Edited April 27, 2018 by Simoski Link to comment Share on other sites More sharing options...
Simoski Posted April 27, 2018 Share Posted April 27, 2018 (edited) Construction of its physical form begins with a lot of superglue and iron powder Next the drive shaft base... Edited April 27, 2018 by Simoski Link to comment Share on other sites More sharing options...
lloyd Posted April 27, 2018 Share Posted April 27, 2018 OK... you got me, Simoski! I'm a modeler and a machine 'prototyper', so I'm familiar with reinforcing powders for CA glues. But even after trying to look it up, I can find no reference to using iron powder. Please educate someone who thought he understood how to use CAs! Lloyd Link to comment Share on other sites More sharing options...
Baldor Posted April 27, 2018 Share Posted April 27, 2018 No Baldor you're confused! I work from standard parametric primitives, spheres, cubes, cylinders etc. When the parametric object is exprted to STL, then it becomes trianglular faces. I don't spend hours moving vertices. I don't have time for that. The drip drip drip of that would be way too irritatingI must confess I did not use 3DS since a lot of years. Do it have a tree of operations you can alter at any point? If no, is not a CAD program. Do it store the geometry as mathematical functions, or as triangles? If it is the second, is not a CAD program. What is the result of a subtraction? If it is a mesh of triangles, is not a CAD program. Could you export the final geometry to IGES or STEP and disassemble it in primitive surfaces? If not, is not a CAD program. The end results show a very bad problem at tringularisation. I doubt it is the slicer, the problem lies before. A real CAD program don't use triangles at all. It can export triangles for your favourite CAM program, at your desired tolerance, but the model is mathematical functions only. Link to comment Share on other sites More sharing options...
Simoski Posted April 27, 2018 Share Posted April 27, 2018 (edited) Arty close up Edited April 27, 2018 by Simoski Link to comment Share on other sites More sharing options...
Simoski Posted April 27, 2018 Share Posted April 27, 2018 current physical manifestation Link to comment Share on other sites More sharing options...
lloyd Posted April 27, 2018 Share Posted April 27, 2018 YOU DIDN'T ANSWER MY QUESTION! <grin> <damn!> Please explain the iron powder! LLoyd Link to comment Share on other sites More sharing options...
chuckufarley Posted April 27, 2018 Share Posted April 27, 2018 Would that be used as a 'kicker' Lloyd? Similar to sprinkling baby powder on thick CA. Link to comment Share on other sites More sharing options...
lloyd Posted April 27, 2018 Share Posted April 27, 2018 Well, that's what I'm wondering, Chuck. I have use several different 'kickers', including baking powder and talcum. But I've never heard of using iron filings. And, since I build flying models, I'd enjoy knowing. Lloyd Link to comment Share on other sites More sharing options...
Simoski Posted April 28, 2018 Share Posted April 28, 2018 construction one third complete 8 ) The cyanoacrylate ( superglue ), see bottom left, to stick the pieces to the board and each other.The file comes in handy post processing the bottoms, cos I always print with a raft for better bed adhesion, but this leaves a rough bottom which needs smoothing.The file also used to rough up the edges that will be glued together, else they are shiny smooth and don't stick.The spirit level to get the drive-shaft true vertical. Link to comment Share on other sites More sharing options...
Simoski Posted April 28, 2018 Share Posted April 28, 2018 (edited) Lloyd the iron powder can be used to "build up" for additional binding.... let me take a close up for you then it will make perfect sense... here you go old boy Edited April 28, 2018 by Simoski Link to comment Share on other sites More sharing options...
Simoski Posted April 28, 2018 Share Posted April 28, 2018 test post: https://www.instagram.com/p/BiG_tPeAIG3/ Link to comment Share on other sites More sharing options...
lloyd Posted April 28, 2018 Share Posted April 28, 2018 Ok... for fillets. Does it retard the cure any, so you have time to work, or do you just pile it up and soak it with CA? I use two 'reinforcing powders' with CAs... baking soda and talc. Both also accelerate cure, so there's zero 'open time'. Lloyd Link to comment Share on other sites More sharing options...
Simoski Posted April 29, 2018 Share Posted April 29, 2018 (edited) Ok... for fillets. Does it retard the cure any, so you have time to work, or do you just pile it up and soak it with CA? I use two 'reinforcing powders' with CAs... baking soda and talc. Both also accelerate cure, so there's zero 'open time'. Lloyd I just do the first basic bond, so that its tightly in the correct place then I add additional CA and throw on the powder.Not sure about the speed, Lloyd, all I can tell you is that it gives a stronger bond. I don't think it is an accelerant like NaHCO3. More like a builder, filler. Edited April 29, 2018 by Simoski Link to comment Share on other sites More sharing options...
Simoski Posted April 29, 2018 Share Posted April 29, 2018 (edited) Here's how the construction is going... Edited April 29, 2018 by Simoski Link to comment Share on other sites More sharing options...
lloyd Posted April 29, 2018 Share Posted April 29, 2018 That's looking pretty nice, Sim! I think - with only the 'drive transmission' issues we've already discussed - that's going to be a 'winner'! LLoyd Link to comment Share on other sites More sharing options...
Simoski Posted April 29, 2018 Share Posted April 29, 2018 (edited) another test post https://www.facebook.com/photo.php?fbid=10216040401181334 Edited April 29, 2018 by Simoski Link to comment Share on other sites More sharing options...
lloyd Posted April 30, 2018 Share Posted April 30, 2018 Not available to me, although FB shows the post is there. I'm just not in the 'selected audience'. Lloyd Link to comment Share on other sites More sharing options...
Simoski Posted April 30, 2018 Share Posted April 30, 2018 (edited) That's looking pretty nice, Sim! I think - with only the 'drive transmission' issues we've already discussed - that's going to be a 'winner'! LLoydCool, by 'drive transmission' issue do you mean the pulley box Lloyd? Edited April 30, 2018 by Simoski Link to comment Share on other sites More sharing options...
Simoski Posted April 30, 2018 Share Posted April 30, 2018 Not available to me, although FB shows the post is there. I'm just not in the 'selected audience'. LloydHmmm, it posted to my friends. Either way I get the feeling this forums software only caters for YouTube in terms of social media links... Link to comment Share on other sites More sharing options...
Recommended Posts