kmwhitt Posted March 13, 2016 Share Posted March 13, 2016 I am attempting to revolve a shape around a custom, locked ref plane. I can pick the entire shape when using the pick tool (first attachment), but when picking it as the source object with the revolve tool I am only able to get individual segments to revolve -- second attachment. The file is attached. Would someone mind telling me why I can't revolve the entire source? Thanks, Kevin Pre-picking doesn't work either nor does unlocking the ref plane. revolve picking issue.zip Link to comment Share on other sites More sharing options...
Tech Posted March 13, 2016 Share Posted March 13, 2016 Hi Kevin, First, the Revolve (or Sweep tools) will pick Faces, Segments, or Sequences of Segments -- so if you pre-pick those, then they will stay picked when you get the tool. If you have the 2 Click Face Selection option checked (from the Edit Menu) then you will need to click on 2 edges to select the desired face. So either click on 2 different edges of that same face, or uncheck that option from the Edit Menu. Second, your source shape needs to be planar, which it is not: Use the Projection tool to make it flat, Then you should be able to Revolve it as you would like: Does that help? revolve planar.zip Link to comment Share on other sites More sharing options...
kmwhitt Posted March 13, 2016 Author Share Posted March 13, 2016 It should have been in alignment to the custom plane as I used dynamic guide snaps when drawing the source and the axis of rotation. I thought the convenience of the locked custom plane was that you could use the tools anywhere in 3D space. Perhaps I misunderstood how this worked. I'm quite comfortable with picking objects. I tried pre-picking the source, but the selection did not stick when I hit the revolve tool - I guess due to the non-planar arrangement. I have noticed some tools won't work when using non-world oriented planes. I came across this while projecting some text onto an oven knob I am modeling - see image attached. After being projected onto the knob base using the surface normals method, when I try to extrude no caps are created. I'd like to perform multiple boolean differences to "imprint" the text into the base. If you don't mind, please tell me how I am supposed to achieve this. Am I supposed to cap and stitch each individual surface to form solids for all of these letters or is there a much quicker way? There are many more "letters" than shown in the attached file. Thanks, Kevin. PS - I tried imprint curve and it will not work with text, but project curve does. knob_test.zip Link to comment Share on other sites More sharing options...
kmwhitt Posted March 13, 2016 Author Share Posted March 13, 2016 Okay, I've accepted that I'll have to use the cover tool to turn all of these letters into surfaces. Is there a more direct way than to use the cover wire tool on every single character? Have run into something new. For some reason I am not able to difference the "O" - see image attached. Would you please take a look at the file and tell me why it's not working? Thanks. BTW - When I copied these letters into the stripped down file for upload, the "R" in BROIL will not paste even after restart - weird... BOOLEAN.zip Link to comment Share on other sites More sharing options...
Tech Posted March 13, 2016 Share Posted March 13, 2016 Hi Kevin, Why not just extrude the text and leave it as a separate object? And if you are making a rendering of the knobs or a close-up of the oven, this is a nice detail, but it is likely way more than you want if you are making a rendering of a kitchen. Perhaps you could just texture map an image of the text onto a very low resolution Facetted version of the knob for a kitchen render? Link to comment Share on other sites More sharing options...
kmwhitt Posted March 13, 2016 Author Share Posted March 13, 2016 Thanks for the suggestion, but I want the actual geometry. Does this mean there is no solution to the boolean difference problem in my last post? I have almost everything differenced - see attached image. I am missing the ability to boolean one "O", an "R", and a "3". I have checked the normals and used the object doctor on all the problem parts - everything checks out. I realize it's Sunday, but I'll be glad to send the entire file Monday if this helps. Also, would really appreciate a response as to whether or not revolves are meant to work in relation to a custom reference plane... Thanks. Link to comment Share on other sites More sharing options...
kmwhitt Posted March 13, 2016 Author Share Posted March 13, 2016 You were right the source shape was not planar which became evident when I used the cover wire tool. Any advice you can give on getting these booleans to work would be greatly appreciated. Thanks, Kevin Link to comment Share on other sites More sharing options...
Tech Posted March 14, 2016 Share Posted March 14, 2016 Hi Kevin, If you really truly need the geometry, then start by setting your File Menu: Project Settings: Working Units: Data Scale to Miniature to work on very small geometry like this. If you still have an issue, try selecting all these parts and Scaling them 100 times (scale about a known location such as the corner of one of the letters, or the origin of the file so when you scale it back to the desired size, it is in the exact same location). Then try the Boolean. Does that then complete properly? If that does not solve it for you, please send the updated file to us so we can help further. Link to comment Share on other sites More sharing options...
kmwhitt Posted March 14, 2016 Author Share Posted March 14, 2016 Good morning. Thanks for the advice. Your scaling method worked for removing the center of the "O", but had no affect on the "R". Further, although I was able to get the "O" and the "3" to take proper form, they are not differencing from the knob itself - I did try the scaling method on all parts. I should have mentioned yesterday that after differencing the individual characters, both objects disappear. FYI - the "stray" characters are located 3" away from the knob along the Y axis. File is attached. knobs.zip Link to comment Share on other sites More sharing options...
Tech Posted March 14, 2016 Share Posted March 14, 2016 Hi Kevin, We don't see the objects in the desired location for executing the Boolean. Can you please post the file that is not working for you (and not just the improper results) so we can take a look? Link to comment Share on other sites More sharing options...
kmwhitt Posted March 14, 2016 Author Share Posted March 14, 2016 I offset them 3" as I thought they'd get lost with so many other characters. They have now been moved into position - see knobs_02.FMZ attached. The image shows the problem objects highlighted in red. knobs_02.zip Link to comment Share on other sites More sharing options...
Tech Posted March 14, 2016 Share Posted March 14, 2016 Hi Kevin, By scaling up, differencing the knob from the inside of the B, Copying the result, Undoing, Unioning the B, Pasting the "copy" -- and Differencing that from the knob, we achieved the first desired result. The 3 will not difference because of geometry problems that will need to be remodeled without these issues, though: (The NonDevelopable faces are fine, but the others are not...) Link to comment Share on other sites More sharing options...
kmwhitt Posted March 14, 2016 Author Share Posted March 14, 2016 You've lost me. "differencing the knob from the inside of the B..." What are you differencing? There is no problem with the B. Are you saying this is where you are clicking when performing the boolean? Link to comment Share on other sites More sharing options...
Tech Posted March 14, 2016 Share Posted March 14, 2016 cut the hole for the B so it has the desired depth first. Then Union the B and Difference the hole... Link to comment Share on other sites More sharing options...
kmwhitt Posted March 14, 2016 Author Share Posted March 14, 2016 Do you mean the "R"? If so, what about the "O"? Link to comment Share on other sites More sharing options...
kmwhitt Posted March 14, 2016 Author Share Posted March 14, 2016 I swear these questions are not meant to annoy. I really am just trying to understand. If I have to rebuild these characters, that's okay, but don't leave me hanging if you consider this post closed. Link to comment Share on other sites More sharing options...
allanjl Posted March 15, 2016 Share Posted March 15, 2016 Kmwhitt, I've looked at your work, and it seems you're working too hard to get the results you need. First, the knob can easily be modeled as a solid. Then, the letters can also be modeled as solid using the text tool. Then it's a matter of simple placing the letters in the right location and differencing them from the knob. It really looks like you don't need to be working with surfaces, but if you already have surfaces for the lettes, simple extrude them as solids, and do the difference. This is basic and simple. Don't think surfaces, think solids. If the surfaces or solids have bad geometry, make sure to run object doctor on them so they're not messed up before you try doing the differences. Allan Link to comment Share on other sites More sharing options...
kmwhitt Posted March 15, 2016 Author Share Posted March 15, 2016 Allan - Thanks for your input. The problem with using all solids for the characters is that you can't project a solid or at least not that I'm aware. The goal here was to place concentric text around the base of the knob with the project curve tool. In the future, I will probably take the moderator's advice and give the text a slight thickness without differencing. However, I shouldn't have to do it this way if I want the text imprinted. FYI - I did use object doctor and it detected no abnormalities with the problem geometry. Kevin Link to comment Share on other sites More sharing options...
R2D2 Posted March 15, 2016 Share Posted March 15, 2016 Another approach for a "faked" solution is to just boolean split your text, then copy move the knob down a bit and substract it. (fake the text to center below the knob as desired using point extrude in the first place) knobs_03.fmz.zip Link to comment Share on other sites More sharing options...
kmwhitt Posted March 15, 2016 Author Share Posted March 15, 2016 R2D2 - That's a clever trick. Thanks for sharing it! Link to comment Share on other sites More sharing options...
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