make a hyperbolic shape in solidworks
make a hyperbolic shape in solidworks
(OP)
Hi
I need to draw feet of my robot using a curve which follows this equation in 3D space:
z=sqrt(Rf^2-x^2)-Rf+sqrt(Rs^2-y^2)-Rs
where Rf and Rs are radius of curvature of the feet in frontal and sagittal plane(take them as 0.5 and 0.38 m respectively). I have drawn the curve in Matlab and you can see it in the 1st link below. I put the actual picture of the robot as well for you(second 1).
http://i54.tinypic.com/sywl52.jpg
http://i56.tinypic.com/2z8zpjt.jpg
the 2 feet should be made as 1 piece (we will then cut the middle to get 2 feet). Please explain how can I make this in solidworks? I am not an expert so if you use any unfamiliar term please explain that.
Regards
I need to draw feet of my robot using a curve which follows this equation in 3D space:
z=sqrt(Rf^2-x^2)-Rf+sqrt(Rs^2-y^2)-Rs
where Rf and Rs are radius of curvature of the feet in frontal and sagittal plane(take them as 0.5 and 0.38 m respectively). I have drawn the curve in Matlab and you can see it in the 1st link below. I put the actual picture of the robot as well for you(second 1).
http://i54.tinypic.com/sywl52.jpg
http://i56.tinypic.com/2z8zpjt.jpg
the 2 feet should be made as 1 piece (we will then cut the middle to get 2 feet). Please explain how can I make this in solidworks? I am not an expert so if you use any unfamiliar term please explain that.
Regards






RE: make a hyperbolic shape in solidworks
Rob Stupplebeen
https://sites.google.com/site/robertkstupplebeen/
RE: make a hyperbolic shape in solidworks
RE: make a hyperbolic shape in solidworks
http://www.youtube.com/watch?v=-R-TpWUSaX8
RE: make a hyperbolic shape in solidworks
I found the problem. Watch the video I just put, then export the file as *.txt rather than *.xyz in Matlab. when you go to solidworks, and when you want to open the txt file, if you don't see the option: point cloud files, go to tools/addins and turn on the click for scanTo3D for both of them(left hand side and right hand side). This will activate the point cloud files in your open menu .
This is really cool
RE: make a hyperbolic shape in solidworks
This geometry is doable in Solidworks. If you section the geometry, along planes parallel to either YZ or ZX direction, you will get ellipses. Solidworks has "Partial Ellipse" or "Ellipse" command which allow you to create ellipses. You can then create your surface through lofting the profiles with an ellipse guide curve.
Good luck!
Alex
RE: make a hyperbolic shape in solidworks
- - -Updraft
RE: make a hyperbolic shape in solidworks
Harold
SW2011 SP1.0 OPW2011 SP1.0 Win 7 Ultimate
BOXX 8550 Xtreme Dual Xeon 5680 @4.2Ghz
nVidia Quadro 4000
www.lumenflow.com
RE: make a hyperbolic shape in solidworks
(x^2/.38)/(1+(1-(1+(-1.1))*(x/.38)^2)^.5)
And if you don't have SW2011 loaded this is hwat it looks like.
Harold
SW2011 SP1.0 OPW2011 SP1.0 Win 7 Ultimate
BOXX 8550 Xtreme Dual Xeon 5680 @4.2Ghz
nVidia Quadro 4000
www.lumenflow.com
RE: make a hyperbolic shape in solidworks
Rob Stupplebeen
https://sites.google.com/site/robertkstupplebeen/
RE: make a hyperbolic shape in solidworks
Harold
SW2011 SP2.0 OPW2011 SP2.0 Win 7 Ultimate
BOXX 8550 Xtreme Dual Xeon 5680 @4.2Ghz
nVidia Quadro 4000
www.lumenflow.com
RE: make a hyperbolic shape in solidworks
Attached is a model showing identical unit quarter arcs that are revolved or lofted and how the geometry varies.
Rob Stupplebeen
https://sites.google.com/site/robertkstupplebeen/
RE: make a hyperbolic shape in solidworks
I knew there would be a difference in the area. For a disk that's .9mm diameter with a parabolic profile of radius .5mm the difference is .0077mm^2. I'm certain that if I used the surface to image a point source niether would be accurate.
Still, pretty close for machined foot. Perhaps the error scales up as well?
Harold
SW2011 SP2.0 OPW2011 SP2.0 Win 7 Ultimate
BOXX 8550 Xtreme Dual Xeon 5680 @4.2Ghz
nVidia Quadro 4000
www.lumenflow.com