corner radius.jpgis there a way to figure what numbers to put in the corner radius boxs to get them to come out a certain length?
corner radius.jpgis there a way to figure what numbers to put in the corner radius boxs to get them to come out a certain length?
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draw it 8 inches on a 22.5% angle
A*A + B*B = C*C since a and b are equal 2 ( A*A) = C*C you have the C actual the length so A = C*C /2 sqr rt
Give us a number and see if it works
so if you need a 8" length.. (8 x8) /2 = 32 the sqrt = 5.656854 that is the number you enter in corel bevel radius.
Wow Me don't like math.
Draw a 8 x 8" box in corel.... rotate 45* and reduce the box to the number you want 8" now rotate it back to 0* and read the measurements......much easier.. 5.657
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Last edited by Mark Sipes; 08-20-2015 at 7:32 PM.
Mark
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.7071 x Length across that leg (8" in this case) = length
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Real name Steve but that name was taken on the forum. Used Middle name. Call me Steve or Scott, doesn't matter.
yikes guys there has to be an easier way. corel will do radius, but I need to know what number to enter into the boxes. If I enter 8.25 looking for 8.25" lines its not right th lines are way to long,corner radius.jpgthere about 11 inches long.
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Bert,
Are you trying to make octagon with 8" each side?
If so, you can get this in corel by drawing square of 19.375 than go to Fillet/scallop/chamfer docker and enter 5.625" in Chamfer and it will generate you 8" sides
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8" bench mount 5 speed Drill Press
Dremel, 3x21 Belt Sander
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8" bench mount 5 speed Drill Press
Dremel, 3x21 Belt Sander
Bert
This may be the hard way but make your square and convert it to curves. Make two squares 8.25" and rotate them 45 degrees. Position them right and top aligned and left and top aligned. Make a node on each side where the chamfer meets the square. then delete the corner node.
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Like others said, you can enter 5.656854 (= .7071*8) in that dialog box to generate an 8" bevel. Since the bevel is at 45 degrees, the horizontal distance (A) from start to end of the bevel is the same as the vertical distance (B), and you want the bevel (C, the side you are creating on the 45 degree slope) to be 8", then it is as Mark explained, you use A squared plus B squared equals C squared. And A equals C so that reduces to 2 A squared equals C squared, or C = A times the square root of 2. And Scott rewrote that as .7071 * 8. QED
Last edited by Glen Monaghan; 08-20-2015 at 8:57 PM.
I'm not exactly sure what your after, but--
if you know the radius and you want the diagonal measurement (as shown in your diagram), multiply it by 141.4%...
Conversely, if you know the diagonal measurement and want to know the radius, multiply by 70.7%...
========================================
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Real name Steve but that name was taken on the forum. Used Middle name. Call me Steve or Scott, doesn't matter.
So the final answer is 5.834 produces a diagonal of 8.25"
.
Mark
In the Great Northwest!
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Thanks guys I think Scott's method is the easiest as I have the number to work with,I don't understand all the other math, basic algebra was 45 years ago long forgotten, hated math.LOL.
I'm going to assume this number only works as long as I'm using a 45° angle
Last edited by Bert Kemp; 08-21-2015 at 7:48 AM.
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8" bench mount 5 speed Drill Press
Dremel, 3x21 Belt Sander