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miter molding

bones's picture

miter molding (post #168341)

Ok, if any of you sketcup (latest free version) are still around, I'm trying to do a miter on some 1/4 round molding I made.   Basically I'm drawing a 10" piece of 1/4" quarter round modling and when joining two pieces at a 90 want to show the pieces with 45 degree miters.   I can do it by intersecting with it's a nice square piece but when I add that rounded corner it's got me stumped.   Thanks.

...For that old machine lovers:  http://vintagemachinery.org/home.aspx

DaveRichards's picture

A Cutting Plane (post #168341, reply #1 of 12)

A cutting plane is what you need, Bones. Draw a rectangle that passes through the molding at the miter angle. Then select it and the molding, right click on it and choose Intersectfaces>With selection. Delete the cutting plane and the waste side of the miter. I'll make an illustration to show you.

DaveRichards's picture

Here's a Quickie Image (post #168341, reply #2 of 12)

http://www.flickr.com/photos/8294157@N08...

Notice that the second molding from the left has the cutting plane drawn but there's no line where the cutting plane and round over meet. This is because there's no intersection--yet. In the third position, the intersection has been made and thus there's a line there.

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bones's picture

thanks, now? (post #168341, reply #3 of 12)

Thanks I hoped you were still around here.  Ok now i've got another one that's stumping me.  I got the miters on the pieces, but when I use the rotate tool to spin it on its end the fact that that one face is at a 45 throughs that all out of whack.  I know what its doing its rotating on that face thats on the 45.   How do I spin it or rotate it with both ends having those slanted faces on the ends?   Secondly, once it's out I cant get it back parallel easily to the part it is going onto a door.  Is there any way to snap those two parts as entitys and get them back parallel again. 

...For that old machine lovers:  http://vintagemachinery.org/home.aspx

DaveRichards's picture

Um... (post #168341, reply #4 of 12)

I 'm not quite sure what you are asking. Could you post a screen shot or the SKP file so I can take a look?

Dave

DaveRichards's picture

I wonder if this gets to it. (post #168341, reply #5 of 12)

Take a look at this video clip to see if it shows what you want to do.

http://blip.tv/designclick-build/rotatin...

You also might find some help here: http://www.finewoodworking.com/item/20406/a-look-at-the-rotate-tool

-Dave

bones's picture

Thanks one more question (post #168341, reply #6 of 12)

Thanks for the vid that helped a lot.  I was selecting the longest point of the miter and it was spinning on the face of the miter not the face of the long piece of cope.  Sorry tehat does not make sense but that's the only way I can explain it.  One more question.  In the model attached I did an example of whre I have the doors where tin plates will go in and the quarter round molding will go in to hold the tin plates down.  While tring to rotate the piece in, I got it out of alignment with the axes and could not get it back (at least not with out a lot of effort) I was hoping that there was a way to easily snap a component back to the point of origin to get it back aligned with the axes of the other component.   Unfortunately when I created the molding I had not learned the importance of setting the axes and it's relation to insertion point when selecting it from the components menu.  I know that now.  For my real model I went back and deleted the modling and recreated it aligning the axes properly and when I insert it each time it now is aligned with the point of origin.  Anyway if you don't mind take a look at my example and tell me if there is an easy way to get that molding to align with the axes after its gotten off.  Thanks again for the help. 

...For that old machine lovers:  http://vintagemachinery.org/home.aspx

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DaveRichards's picture

If you catch this error in (post #168341, reply #7 of 12)

If you catch this error in rotating (or other errors) in time, Undo is your friend. In the case of your sample, there's no undo stack for me so I ended up rotating it in increments first along one axis and then another. I locked the axis of rotation by first getting it oriented as needed and then holding Shift. To get it oriented on an axis, orbit around and move the tool until the protractor displays as the color of the axis you need. 

One thing that makes life easier when drawing is to draw components in place as much as possible. This can reduce the need to rotate or otherwise move components. Of course you'll want to copy and flip components to make the their counterparts (left and right or top and bottom) but remember Flip is a mirroring operation. Rotate is not. At first blush, rotating a copy of your quarter round end for end will look the same but if you have any reason to edit the length of the molding, you'll see Flip and Rotate are not the same.

bones's picture

groups .vs. components and layers (post #168341, reply #8 of 12)

Well, only 16hrs and I managed to drway two doors to a pie safe to scale with the tins in place (jpg scaled) and 1/4 round molding to hold the tins in.  Man this is slow.   Anyway I started playing with layers.  I like that, it was nice I put the base door in on the trim in another and the tins in another.   Made looking at thigs seperately nice.  It was very nice when I put the molding in the openings then turned off that layer and placed the tins as a component in place.   

A question though, where should you use layering and when do you use components .vs. groups?  I found that I could create a component called doors that had both the left and right door and I could also create a group with the left and right door.  I also created a component Left door and a component right door.   What's the difference I'm sure there are big differences.  This is my test run at sketchup.  I'm thinking this will be my last plans purchased and start doing my own, but I can see a relatively non complicate piece could have tons of parts and I'd had to get to the end a screw it up.  I've alread discovered that you want to keep your point of reference when creating parts so when you select FRont in camera view it's what you expect.    Thanks again for the help. 

...For that old machine lovers:  http://vintagemachinery.org/home.aspx

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DaveRichards's picture

Bones, is there any chance (post #168341, reply #9 of 12)

Bones, is there any chance you'd drop me an e-mail so we can chat about this a little more easily?

drkr4109 at gmail dot com

bones's picture

thanks for the offer (post #168341, reply #10 of 12)

Sent you an E-mail.  I've done well over the last two days. I've even been able to do a curved leg.  

...For that old machine lovers:  http://vintagemachinery.org/home.aspx

DaveRichards's picture

No e-mail yet. (post #168341, reply #11 of 12)

No e-mail yet.

bones's picture

mail server was acting up. (post #168341, reply #12 of 12)

Server was acting up.  Should be there now.  Thanks again.

...For that old machine lovers:  http://vintagemachinery.org/home.aspx