ReMark Posted January 25, 2013 Share Posted January 25, 2013 Please do not risk your job over a silly 3D spoon drawing. It isn't worth it. There's no deadline you have to meet either. Heck, if you don't want to do it I can't force you so feel free to tell me you got better things to do. I will not be offended. We're just having some fun here that's all. Quote Link to comment Share on other sites More sharing options...
PotGuy Posted January 25, 2013 Share Posted January 25, 2013 Please do not risk your job over a silly 3D spoon drawing. It isn't worth it. There's no deadline you have to meet either. Heck, if you don't want to do it I can't force you so feel free to tell me you got better things to do. I will not be offended. We're just having some fun here that's all. Lol, dw. I just call it practise on 3rd Angle Projection. I'm an apprentice CAD Techie within 1st year, and I've done this sort of thing before during downtime. (See screen!) Quote Link to comment Share on other sites More sharing options...
Dana W Posted January 26, 2013 Share Posted January 26, 2013 Haven't started on my end yet! [ATTACH=CONFIG]39882[/ATTACH] Handle wise, have you considered adding a hole near the end of the handle? Like a spoon that's part of a set, that loops round a ring? I like this one, it has a beer opener on it. I am not at all sure what the other end is good for, though. Quote Link to comment Share on other sites More sharing options...
spinecad Posted February 12, 2013 Author Share Posted February 12, 2013 Thank you so much for the gear tutorial. Now, can someone please tell me how to create a 3D model of the worm gear in autocad? http://ts2.mm.bing.net/th?id=H.4962075343389269&pid=15.1 Quote Link to comment Share on other sites More sharing options...
spinecad Posted February 12, 2013 Author Share Posted February 12, 2013 What is an offset tooth? Quote Link to comment Share on other sites More sharing options...
ReMark Posted February 12, 2013 Share Posted February 12, 2013 Caveats: 1. This is a rough approximation intended for demonstration purposes only. 2. The gear teeth are a figment of my imagination. Any relation to the real world is purely accidental on my part. This was done using plain AutoCAD. I think it would be wiser to create your worm gear using Inventor. I did it by creating a small four tooth section in profile using a continuous polyline. I copied the original profile 1/2" higher then rotated it thereby offsetting the teeth (they do not line up). I used the LOFT command to create a 3D solid. I arrayed this result and unioned everything together. Yes, it is not the most elegant way nor the quickest but you get the general idea don't you? Not to worry. JD Mather will come along, tell me where I screwed up, and suggest as he always does that I should have used a modern MCAD program (like Inventor). Heard it all before and I just don't care. For me it was just a fun exercise. If you gain something from it fine. If you don't well what can I say? No offense taken. We cool? Quote Link to comment Share on other sites More sharing options...
spinecad Posted February 13, 2013 Author Share Posted February 13, 2013 One of those two parts: Quote Link to comment Share on other sites More sharing options...
spinecad Posted February 13, 2013 Author Share Posted February 13, 2013 And how to draw a curve that tangent to red line and blue line from point A to point B such as below image in AutoCAD? I'd tried this in Solidworks and Catia which are much easier than in AutoCAD. Perhaps in the next version of AutoCAD I hope. Quote Link to comment Share on other sites More sharing options...
SEANT Posted February 13, 2013 Share Posted February 13, 2013 And how to draw a curve that tangent to red line and blue line from point A to point B such as below image in AutoCAD? I'd tried this in Solidworks and Catia which are much easier than in AutoCAD. Perhaps in the next version of AutoCAD I hope. Attached via the Spline command, Method = CV, Degree = 2. Tangents.dwg Quote Link to comment Share on other sites More sharing options...
ReMark Posted February 13, 2013 Share Posted February 13, 2013 One of those two parts: I see said the blind man. Those can be drawn using the HELIX and SWEEP commands. Quote Link to comment Share on other sites More sharing options...
ReMark Posted February 13, 2013 Share Posted February 13, 2013 A rough approximation but I think it serves the purpose. Use the HELIX command to create the spiral. Draw your tooth profile. Sweep the profile. Extrude the core. Union together. Done. Quote Link to comment Share on other sites More sharing options...
ReMark Posted February 13, 2013 Share Posted February 13, 2013 A different view. Quote Link to comment Share on other sites More sharing options...
JD Mather Posted February 13, 2013 Share Posted February 13, 2013 (edited) And how to draw a curve that tangent to red line and blue line from point A to point B such as below image in AutoCAD? I'd tried this in Solidworks and Catia which are much easier than in AutoCAD. Perhaps in the next version of AutoCAD I hope. Use Constraints (Parameters tab in AutoCAD since v2010 or 2011). Attach your SolidWorks file here. By "curve" do you mean an arc (part of a circle) or a spline? There is no solution to an arc going through those two points and tangent to those two lines. This is through both points and tangent to ONE line. (SolidWorks) This is tangent to both lines going through ONE point. (AutoCAD) Edited February 13, 2013 by JD Mather Quote Link to comment Share on other sites More sharing options...
spinecad Posted February 14, 2013 Author Share Posted February 14, 2013 By "curve" do you mean an arc (part of a circle) or a spline?There is no solution to an arc going through those two points and tangent to those two lines. [ATTACH=CONFIG]40251[/ATTACH] This is through both points and tangent to ONE line. (SolidWorks) [ATTACH=CONFIG]40254[/ATTACH] This is tangent to both lines going through ONE point. (AutoCAD) I mean how to create such as the first picture (Solidworks) of above two pictures in AutoCAD? I would like to create a spline that has its control point such as in the Solidworks. Quote Link to comment Share on other sites More sharing options...
spinecad Posted February 14, 2013 Author Share Posted February 14, 2013 [ATTACH=CONFIG]40240[/ATTACH]A rough approximation but I think it serves the purpose. Use the HELIX command to create the spiral. Draw your tooth profile. Sweep the profile. Extrude the core. Union together. Done. No it's not SWEEP ing. Quote Link to comment Share on other sites More sharing options...
ReMark Posted February 14, 2013 Share Posted February 14, 2013 (edited) It should sweep if there is no problem with your geometry. I swear I used the SWEEP command on my tooth profile. Attach a copy of the drawing to your next post. Someone here will take a look at it. Maybe they can discern what the nature of the problem is. Edited February 14, 2013 by ReMark Quote Link to comment Share on other sites More sharing options...
JD Mather Posted February 14, 2013 Share Posted February 14, 2013 (edited) I would like to create a spline that has its control point such as in the Solidworks. You should be more precise in describing your problems in the initial post so that it doesn't take a bunch more posts to clarify. (also, I would suggest starting a new thread for each new problem description. We have gone from gears to spoons to simple spline curves) You should be using Autodesk Inventor rather than AutoCAD if you are going to compare to SolidWorks. You are comparing apples to oranges. Students can get Autodesk Inventor for free here http://engineersrule.org Edited February 14, 2013 by JD Mather Quote Link to comment Share on other sites More sharing options...
PotGuy Posted February 14, 2013 Share Posted February 14, 2013 You should be more precise in describing your problems in the initial post so that it doesn't take a bunch more posts to clarify.(also, I would suggest starting a new thread for each new problem description. We have gone from gears to spoons to simple pline curves) You should be using Autodesk Inventor rather than AutoCAD if you are going to compare to SolidWorks. You are comparing apples to oranges. Students can get Autodesk Inventor for free here http://engineersrule.org Sorry! Quote Link to comment Share on other sites More sharing options...
spinecad Posted February 16, 2013 Author Share Posted February 16, 2013 You should be more precise in describing your problems in the initial post so that it doesn't take a bunch more posts to clarify.(also, I would suggest starting a new thread for each new problem description. We have gone from gears to spoons to simple spline curves) You should be using Autodesk Inventor rather than AutoCAD if you are going to compare to SolidWorks. You are comparing apples to oranges. Students can get Autodesk Inventor for free here http://engineersrule.org I have no idea whether the Autodesk Inventor has this feature because I never use it before and until now. Thank you for the information. However, can this, spline with handle, be done in AutoCAD? Do you understand the equation? If you don't mind, can you explain it clearly? Quote Link to comment Share on other sites More sharing options...
JD Mather Posted February 16, 2013 Share Posted February 16, 2013 Do you understand the equation? I don't see an equation. This will be my last response in this thread. Quote Link to comment Share on other sites More sharing options...
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