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Discussion in 'Tele Home Depot' started by guitarbuilder, Aug 2, 2017.
Thanks for your support guys and thanks for watching.
Time to put some surfaces on the neck.
Please understand that you can build surfaces in different ways. My favorites so far for neck modeling are curve network and sweep 2 rails. Early on I had a lot of trouble with curve network. Mark aka engraver-60, helped out immensely years ago when he informed me that curve network responds better to curves that have the same point count. He said to rebuild the curves with the same number. Ever since he told me that, it has been a lot easier. The first thing I did here is split my nut curve and heel transition curve into two equal arcs by splitting them with the red taper line down the center of the neck.
I used the rebuild command to make each half arc have the same number of points. Then I used sweep two rails from the nut curve along the red line and the fretboard edge line. This resulted in the surface you see here.
Now this surface looked good until I zoomed in at the heel side and the surface wasn't touching the arc in a couple places. I deleted the surface and used the curve network command.
I did the same on the other side too.
The triangular side surface was done with curve network. I used curve from objects to create the curves and rebuilt them with the same point count. That made a decent flat surface.
The heel to shaft transition is a bit trickier because of all the multiple curves on the surfaces. I tried curve network and sweep two rails from different directions until one surface looked the best. That was the result of sweep two rails.
Then I used Transform/ Mirror to copy to the right side using the centerline of the neck as the mirroring point.
Rendered it looks like this:
The surface on the side of the heel was made by using curves from objects and sweep two rails. That was mirrored to the other side with the centerline of the neck too.
You can use the blend command between surfaces to get them a bit nicer looking too.
Here is the rendering. I can remove the black lines now if I want.
This last part of the surfacing is pretty hard. I've found for me with my limited Rhino knowledge, that I'm better off simplifying complex surfaces into ones with fewer hills and dales. Here I added a couple more curves. First I draw a straight line across from surface to surface. Then I put a point in the middle of it and stick a couple points at each end. I delete the original line and replace it with a curve through the points. This is a right button click on the curve tool. It redraws a line that can then be bent by turning on the control points. I make my curve and turn off the control points. In reality the curved line comes out all squiggly, so I sent it to the cplane ( construction) plane which straightens it out. Then I click back the ortho button ( this only allows you to move in straight lines) and use the move command to put it back into the position by the point. This is hard to describe and you need to play with it to understand more completely. You have to play with the control points which each feature will have when you draw it. In the last picture below I have moved the control point outward and that bends the "straight" line into a curved line.
You realize you could do a Metro New York CNC class. I’d come!!!
once those lines are there, I can split the curves at the bottom and top by them and I have 4 lines to make a surface with surface network command.
The rest of this is really tough to do. In retrospect I should have simplified the top surface and ensured that my cross section curve by the nut were touching. They aren't, so I'm going to have to do some fudging here...… I should have made a paddlehead neck.
Oh... in case you were wondering, I copied the peghead portion and created a new file. I did this to get rid of the rest of the neck so my visibility was better when I was looking at the views directly. I'll put the peghead back on the neck at the end. The rest of this is just using curve from objects and network surface commands.
I reattached it to the neck in the orginal file. There are still a couple gaps to fix between some of the surfaces, but I think this should be able to get people going to some kind of result. Try the commands and learn what they do. The nice part is you can delete lines and surfaces and start over with something else.
Now it's time for something easier. I took Ed's fretlines and dots and placed them back into the drawing and moved them up 1" to the top of the neck. I drew an arc with a 7.25 radius across one of them and placed the center at the top of the center of the first fret.
At this point I created a surface with the arc in both directions forward and back a distance of .011. The surface was then .022 wide. I extruded that surface downward .0625 and that creates the shape that I'll use for a curved fret slot. It is blue.
I copy the blue object and place it on every fretline that Ed made.
Then I split the blue objects from the neck and got this. It's hard to see the slots there but you'll see them after I tackle the dots.
I changed the color of Ed's circles to black and made planer curves out of them.