Shoelast
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- Posts: 155
- Joined: Thu Feb 02, 2017 2:49 pm
Shoelast
Hello,
I'm wondering if it's possible to create a shoelast with Freecad? In the attached file I have included:
a) A shoelast model which was an iges-file from the internet. My shoelast which I'm looking for will have different dimensions and look different. This is only sample to see if it's possible to do like this with Freecad. If not, then b) is of no use anymore, otherwise
b) this is the work I could do upto this stage. It shows a shaped solid and I've done it in the way I would do it in real life - with a wood block and tools (I know how to do it). Now, basicly is the question how the shaping in cad is been done or has to be there a total different approach? Because I have the finished shoe last already with me, I could retrieve more dimensions if required.
Thanks for your advice,
Andre
OS: Windows 8
Word size of OS: 32-bit
Word size of FreeCAD: 32-bit
Version: 0.16.6706 (Git)
Build type: Release
Branch: releases/FreeCAD-0-16
Hash: f86a4e411ff7848dea98d7242f43b7774bee8fa0
Python version: 2.7.8
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17
I'm wondering if it's possible to create a shoelast with Freecad? In the attached file I have included:
a) A shoelast model which was an iges-file from the internet. My shoelast which I'm looking for will have different dimensions and look different. This is only sample to see if it's possible to do like this with Freecad. If not, then b) is of no use anymore, otherwise
b) this is the work I could do upto this stage. It shows a shaped solid and I've done it in the way I would do it in real life - with a wood block and tools (I know how to do it). Now, basicly is the question how the shaping in cad is been done or has to be there a total different approach? Because I have the finished shoe last already with me, I could retrieve more dimensions if required.
Thanks for your advice,
Andre
OS: Windows 8
Word size of OS: 32-bit
Word size of FreeCAD: 32-bit
Version: 0.16.6706 (Git)
Build type: Release
Branch: releases/FreeCAD-0-16
Hash: f86a4e411ff7848dea98d7242f43b7774bee8fa0
Python version: 2.7.8
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17
- Attachments
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- Shoelasttest.FCStd
- (1005.13 KiB) Downloaded 238 times
Re: Shoelast
Hi Andre,
I did not check but maybe the "Airfoil Macro" can be useful for this, see https://www.freecadweb.org/wiki/index.p ... _%26_Scale
With the sketcher is a shoe shape not really possible to creatte, you definitely need to work with Splines, but I did use them never before
I did not check but maybe the "Airfoil Macro" can be useful for this, see https://www.freecadweb.org/wiki/index.p ... _%26_Scale
With the sketcher is a shoe shape not really possible to creatte, you definitely need to work with Splines, but I did use them never before
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- Posts: 155
- Joined: Thu Feb 02, 2017 2:49 pm
Re: Shoelast
Hi Willem,
looks like with hammer and Chisel I can't do too much . This airfoil looks very interesting indeed, but I think just that alone will not do the trick.
Let's see what else suggestions are coming up,
regards
Andre
looks like with hammer and Chisel I can't do too much . This airfoil looks very interesting indeed, but I think just that alone will not do the trick.
Let's see what else suggestions are coming up,
regards
Andre
Re: Shoelast
Hello Leatherman.
1) You could slice your model at different height steps (for example every 1 mm) and draw the outline in a sketch.
Use placement on the sketch to get correct positions ...
Then use Loft Tool to connect all sketches ...
2) Haven't tried that, but maybe using contour lines with ruled surfaces operation and then going all the way from surfaces to solid ... ?
Roland
1) You could slice your model at different height steps (for example every 1 mm) and draw the outline in a sketch.
Use placement on the sketch to get correct positions ...
Then use Loft Tool to connect all sketches ...
2) Haven't tried that, but maybe using contour lines with ruled surfaces operation and then going all the way from surfaces to solid ... ?
Roland
Deutsche FreeCAD Tutorials auf Youtube
My GrabCAD FreeCAD-Projects
FreeCAD lessons for beginners in english
Native german speaker - so apologies for my english, no offense intended
My GrabCAD FreeCAD-Projects
FreeCAD lessons for beginners in english
Native german speaker - so apologies for my english, no offense intended
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- Posts: 155
- Joined: Thu Feb 02, 2017 2:49 pm
Re: Shoelast
Hello R-frank,
first of all, thank you for your video tutorials. By slicing the model would you suggest any direction in particular?
Thanks
Andre
first of all, thank you for your video tutorials. By slicing the model would you suggest any direction in particular?
Thanks
Andre
Re: Shoelast
Hello Andre.
Assuming the heel is at 0/0/0 and the toes are at Y+ only Y-direction or Z-direction slicing would make sense.
I have to admit that i have no clue about the mathematics used to interpolate between the sketches
so you would have to choose and do a start ...
Roland
Assuming the heel is at 0/0/0 and the toes are at Y+ only Y-direction or Z-direction slicing would make sense.
I have to admit that i have no clue about the mathematics used to interpolate between the sketches
so you would have to choose and do a start ...
Roland
Deutsche FreeCAD Tutorials auf Youtube
My GrabCAD FreeCAD-Projects
FreeCAD lessons for beginners in english
Native german speaker - so apologies for my english, no offense intended
My GrabCAD FreeCAD-Projects
FreeCAD lessons for beginners in english
Native german speaker - so apologies for my english, no offense intended
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- Posts: 155
- Joined: Thu Feb 02, 2017 2:49 pm
Re: Shoelast
Hi Roland,
do you know any tutorial which explains the best way to work with lots of slices. Like I've said, I do have the real shoe last with me, so I could always cross check the measurements. I think that the loft tool should bring me forward, if it's finally enough - let me try and see
Thanks and regards
Andre
do you know any tutorial which explains the best way to work with lots of slices. Like I've said, I do have the real shoe last with me, so I could always cross check the measurements. I think that the loft tool should bring me forward, if it's finally enough - let me try and see
Thanks and regards
Andre
- microelly2
- Veteran
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- Joined: Tue Nov 12, 2013 4:06 pm
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Re: Shoelast
You ca design your slices with BSplines in Draft or next with Sketcher BSplines
here some pictures
https://freecadbuch.de/doku.php?id=blog ... _geigenbau
Then you create a Loft over them.
I have done a slicing with the Part slice method to get some contour curves
Downgrade the slices to some edges with Draft downgrade
then use this script to create Bsplines from the selected curves
and edit them by double click in Draft and Drag and drop the Approximation points
The other way is to scan your mode to get a point cloud and post process it
https://www.youtube.com/watch?v=Qwbq94UdIlU
here you will need a 3D camera to get the point cloud
here some pictures
https://freecadbuch.de/doku.php?id=blog ... _geigenbau
Then you create a Loft over them.
I have done a slicing with the Part slice method to get some contour curves
Downgrade the slices to some edges with Draft downgrade
then use this script to create Bsplines from the selected curves
and edit them by double click in Draft and Drag and drop the Approximation points
Code: Select all
e=Gui.Selection.getSelection()[0]
pts=e.Shape.Edge1.Curve.discretize(20)
Draft.makeBSpline(pts)
The other way is to scan your mode to get a point cloud and post process it
https://www.youtube.com/watch?v=Qwbq94UdIlU
here you will need a 3D camera to get the point cloud
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- Posts: 155
- Joined: Thu Feb 02, 2017 2:49 pm
Re: Shoelast
Hello Microelly,
this is my last!!!!! I can't believe it! I just have a quick meeting and will come back to you.
Regards
Andre
this is my last!!!!! I can't believe it! I just have a quick meeting and will come back to you.
Regards
Andre
- microelly2
- Veteran
- Posts: 4688
- Joined: Tue Nov 12, 2013 4:06 pm
- Contact:
Re: Shoelast
https://youtu.be/AiqVHmqqXfA
When I have time, I will wrte te macro to convert it into the new skecher BSpline format, then you can do a parametric design.
When I have time, I will wrte te macro to convert it into the new skecher BSpline format, then you can do a parametric design.