Total newbie: (Arc surface with round over corner)
-
I'm working on a shelf in here.
Not to mention that the it was a nightmare to define my "dado joints" I was trying to fine tune the piece but finished up with an open corner.
Is there any way (quick or not) to fix the open void?
I thank you in advance!
-
Use the follow-me tool.
I have done it for you in the attached image. I cut a piece of the side that represents a profile to be extruded around the curve.To accomplish what I did in the attachment: select the "path" (either the bottom or the top set of edges defining your curve) then click on the follow me tool and then click on the little profile that needs to be extruded. Voila. Done.
You will need to softne the edges created however. Select them and the right click on your selection and choose smooth soften using the slider to get the degree of smoothness you require.
-
Thank you so much!
Lovely forum this one.
-
actually it is a much lovelier forum when one remembers to add the attachment. So sorry about that. here it is
-
oh oh. I didn't think it through all the way. Follow-me rotates the starting face to be perpendicular to the first segment of your path. Because your first segment is at an angle, the follow me isn't working as intended. So I needed to draw an extenstion and move a copy of your shape to the end of the tail so that the follow me will go around the bend properly.
In the first ecample I created a facade which will have extraneous bits inside the shelf that you will want to delete. In this example I created the profile in the inverse, outside, direction so it is easier to delete the bits you don't want. I also used the weld ruby script to weld the arc together so that it is both easier to copy and also removes the need to soften the edges after the follow me. I've enclosed the weld ruby script here as well as an skp of how you would set up this follow me. If you haven't used ruby scripts: put the weld.rb file into Program Files>Google>Google SketchUp 6>Plug INS. If you are on MAC put it in the equivalent folder. Close all instances of SketchUp that you may have open and then open again and the Plug in will be "pulled in". You will find the weld function in the Plug Ins Menu ( You may need to go to file>preferences>extensions and enalble all extensions which will allow the Plug Ins menu to display)Long answer, but more complete than before.
-
I don't think you're going to be able to do this using Follow me.
-
I attached a file where i tried to solve your problem
take a look here
http://www.sketchucation.com/forums/scf/viewtopic.php?f=79&t=8729you post in so many places i did not know where yo answer
-
yes you can jim, just look at the file I attached.
It isn't any good to provide the file all completed without telling him how to achieve it. -
@sorgesu said:
yes you can jim, just look at the file I attached.
It isn't any good to provide the file all completed without telling him how to achieve it.I could be wrong.
The reason I said Follow me won't work is because the arcs on each side do not follow the same path. If you put one arc on top of the other, you can see it. Follow me will only follow one side, but not the other - giving an imperfect result.
-
Well, this is the case when someone posts the same question in several subforums. Anyway, I have also answered in the Newbies where it was posted, too: http://www.sketchucation.com/forums/scf/viewtopic.php?f=79&t=8729 and could use the follow me tool although it was obvious that some post cleaning and such was going to be made.
-
Ah Jim,
I think none of us looked as closely as you did. You are quite right. The curves for the path are not the same. The arced form will not work.
I tried to think of a way to use the skin.rb instead but that would take some doing.I think perhaps this coud be done if one drew a tail for both the top and the bottom path both at the front and the at the end of the paths, then place the arced shape at the start of the front tail of one path, do the follow me. then do it again by placing the arced shape at the front tail of the bottom curve. THEN do and intersect with model and start erasing away.
Of course another way to do it is to accept the curve the follow me provides and then redraw the straight geometry that is attached. -
To xupacabra: Is the radius of the roundover suppose to change over the length? What is your plan for cutting this in the wood? Thinking through the process as far as how you would make the roundover on the wood with tools might be helpful in figuring out how to draw it in SketchUp.
Assume for the moment you'd simply run a router along the edge with a bearing-guided roundover bit installed. The radius would be constant along the path. As Susan indicated, the path needs to be extended beyond the ends of the curve that you want radiused. The profile should be perpendicular to the first segment of the path. After completing the Follow Me operation, select all of the geometry of the "board" and the Follow Me extrusion and run Intersect with Selected. Then delete the waste at the ends. Think of this as turning on the router before the bit is in contact with the wood and shutting it off after you've completed the cut.
The missing faces could be due to the small face phenomenon. SU doesn't like to make tiny faces. You can avoid this problem by using few segments for the arc defining the roudover. for something that small, 3 or 4 segments would be plenty. You could also temproarily scale the model up by, perhaps, a factor of 100 prior to running the Follow Me operation. After you've completed that and the clean up after the Intersect, you can scale back down. the easy way to do that is to draw a line 1" long someplace in the drawing window. Then measure it with the Tape Measure tool, clicking at each end. The VCB will display the length as 1". Type 100 and hit Enter. You'll be asked if you want to resize the model. Choose Yes and then hit Zoom Extents so you can see the whole model. When you've completed the roundover, scale back down by repeating the previous. When you measure the line again, SU will report it at 100" long. Type 1 and hit Enter. Again, you'll be asked if you want to resize the model. Click Yes and zoom Extents and you're back to where you were.
If the roundover is very small, you might choose to insinuate that it is there rather than draw it. You can do this by selecting the long arc on the side of the bookcase, then the Offset tool. Click on the arc and drag in on the face maybe 1/4". Extend the ends of the arc to intersect with the top and bottom of the bookcase side. Select the original arc again and copy (Ctrl+Move) it along the curved face, again, 1/4" down. In woodworking terms, think of running a marking gauge set at 1/4" along that arc.
Now, hold Ctrl while using the Eraser to soften the original arc line. Then use Shift to hide the offset arc and the copy of the arc. Those last two curves form limits for the softening. While this doesn't put a real radius on the edge, it can be convincing when view the overall piece. It is usually faster to do this and it doesn't have nearly the impact on file size that a real roundover would have.
As an example of this, take a look at the image at this link. It's too large to post here and reducing it will make it difficult to see the details. The second rail from the bottom shows the effect of what I describe here. Compare it to the second from the top.
-
thank you all for the answers. In fact most of the reply achieved what I wanted to achieve but I must call the attention to on thing that sorgesu said. Although I appreciate the effort of those who sent back a working plan, it is always better to teach the newbie how to achieve the result, as this allows him not only to stop asking but hopefully to teach others!
Advertisement