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3D radius

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Post new topic Reply to topic  eMachineShop.com Forum Index » 3D Design
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norumba
Tue Dec 23, 2008 12:21 pm 3D radius Reply with quote

trying to design a musical instrument fingerboard --- have the basic flared rectangle shape done, but i need to apply a 12" radius across the width....not sure how to do this, any suggestions?
thnaks

Tech3
Tue Dec 23, 2008 12:31 pm Reply with quote

Please see Air Outside. You would be drawing the fingerboard cross section which includes the arc.

Last edited by Tech3 on Thu Dec 23, 2010 12:51 pm; edited 1 time in total

norumba
Wed Dec 24, 2008 4:08 am Reply with quote

sorry --- i followed the link, and studied it,but im still not grasping how i would actually draw it ...
Tech2
Wed Dec 24, 2008 6:15 am Reply with quote

Just go into the Front or Right view depending on the orientation, draw a shape something like a D rotated 90 deg and on the numeric bar in the Z control select Air Outside. Then check the 3D view to verify.
norumba
Wed Dec 24, 2008 3:45 pm Reply with quote

ah, once i figured out how to access Front view it all makes sense...thanks, ill give it a try!
norumba
Thu Dec 25, 2008 5:10 am Reply with quote

i made progress -- was able to make the arc and move it into position to intersect the fingerboard, but im running into snags trying to cut away the uneeded portions.

i cant view it in 3d - it says the indicated line is open and overlaps with a closed line.
ive also tried to intersect but it doesnt seem to take, and then i treid to join all lines and select machine but then i got an error message saying "edge settings cannot be edited for the selected lines because slection includes lines generated by another side view. Please select each line separately."

any further thoughts on how to trim this?

Tech2
Thu Dec 25, 2008 6:22 am Reply with quote

Please see How to post a CAD Drawing.
norumba
Thu Dec 25, 2008 5:10 pm Reply with quote

says ems file extension not allowed...
Tech2
Thu Dec 25, 2008 9:27 pm Reply with quote

I think I fixed the problem - please try again.
norumba
Fri Dec 26, 2008 6:19 am Reply with quote

this ones a little cleaner, and has a needed recessed narrow notch across the top... i still cant get it to intersect properly. Ifollowed your z axis link you sent to me, and i understand the principal of trying to get the right shape to apply an "air outside", but i cant get the arc and the basic shape to outline properly. hope you can advise, and many thanks!
and happy holidays!



 Description:

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 Filename:  fingerboard12radius_withNotch.ems
 Filesize:  3.88 KB
 Downloaded:  35 Time(s)


Tech2
Fri Dec 26, 2008 7:56 am Reply with quote

The arc you drew is open. You need to draw lines to close the shape.
norumba
Fri Dec 26, 2008 1:23 pm Reply with quote

ah -- i was trying to delete the superfluous line segments as i went but i 'll try that.Thanks!
Tech2
Fri Dec 26, 2008 2:18 pm Reply with quote

OK. Also I just added a section on Invalid Shapes.
norumba
Sat Dec 27, 2008 2:06 am Reply with quote

took a little trial and error but i got it to work by drawing additional lines tracing over the segments of the original shape, connecting the new lines to the to the arc segment, and then applying the air outside value.If you can, please, confirm the 3d view? there's an odd ridge down the middle of top view, which i think is just a 3D view rendering artifact, but id like to make sure...

thnks!



 Description:

Download
 Filename:  fingerboard12radius_withNotch_A.ems
 Filesize:  4.89 KB
 Downloaded:  35 Time(s)


Tech2
Sat Dec 27, 2008 7:20 am Reply with quote

Your design looks fine to me. I don't see the rendering issue on my setup but try menu Help | Self Test and indicate that the test failed and follow the instructions. Let me know if that helps.
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