Comments on: Drop-Cutter in C# - v2 http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/ Wed, 08 Feb 2012 22:20:27 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Neel http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-383 Neel Mon, 26 Nov 2007 11:08:25 +0000 http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-383 http://web.media.mit.edu/~neilg/fab/dist/cam.py is a python code which can create Z slices and Raster passes on STL model. http://web.media.mit.edu/~neilg/fab/dist/cam.py is a python code which can create Z slices and Raster passes on STL model.

]]> By: Neel http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-382 Neel Tue, 13 Nov 2007 10:08:08 +0000 http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-382 Good to hear that, I thought the project was dead. Good to hear that, I thought the project was dead.

]]> By: Anders http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-381 Anders Sun, 11 Nov 2007 07:41:56 +0000 http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-381 Hey, I just wanted to let you know i've started looking some at the code again, trying to get my head around opengl some more ^_^ Hey, I just wanted to let you know i've started looking some at the code again, trying to get my head around opengl some more ^_^

]]> By: Administrator http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-380 Administrator Thu, 27 Sep 2007 12:37:26 +0000 http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-380 Hi Neel, Yes, interesting post again by Julian. There are a lot of obvious optimizations that I haven't looked at yet. Right now I would be more interested in adding functionality. When we have something nice that works I could then work on a bucketing scheme to make it faster. For raster-finishing we need a function that takes a bunch of triangles and calculates the 'outline' as seen from above (along the z-axis). Then we need another function that takes this outline and generates zigzag-paths inside it. When we have those two, the raster-finish strategy steps along the zigzag path at some sample-rate and uses dropcutter to compute the z-coord of the tool at all points. The other major thing I'm thinking about (but not making much progress...) is 2D offsetting. That will be required for a lot of strategies very early on too. anyway, hopefully people interested in open-source CAM don't hold their breath for anything. I'll write some more code when I feel like it and when I have a clear idea for an algorithm or function in my head. my code is at http://code.google.com/p/monocam/ Anders Hi Neel,

Yes, interesting post again by Julian. There are a lot of obvious optimizations that I haven't looked at yet.

Right now I would be more interested in adding functionality. When we have something nice that works I could then work on a bucketing scheme to make it faster.

For raster-finishing we need a function that takes a bunch of triangles and calculates the 'outline' as seen from above (along the z-axis).
Then we need another function that takes this outline and generates zigzag-paths inside it.

When we have those two, the raster-finish strategy steps along the zigzag path at some sample-rate and uses dropcutter to compute the z-coord of the tool at all points.

The other major thing I'm thinking about (but not making much progress...) is 2D offsetting. That will be required for a lot of strategies very early on too.

anyway, hopefully people interested in open-source CAM don't hold their breath for anything. I'll write some more code when I feel like it and when I have a clear idea for an algorithm or function in my head.

my code is at http://code.google.com/p/monocam/

Anders

]]> By: Neel http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-379 Neel Thu, 27 Sep 2007 12:05:02 +0000 http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-379 Have you seen optimization notes from Julian : http://www.freesteel.co.uk/wpblog/2007/09/offsets-of-triangulated-surfaces/ Have you seen optimization notes from Julian :
http://www.freesteel.co.uk/wpblog/2007/09/offsets-of-triangulated-surfaces/

]]> By: Administrator http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-378 Administrator Sun, 26 Aug 2007 23:53:27 +0000 http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-378 Hi Elwolv, I have no idea why the moderators of CAD_CAM_EDM_DRO would not like to see discussion about CAM or real-time software on the list. Ofcourse it could get a bit technical, but I don't see why that would be a problem. AW Hi Elwolv,

I have no idea why the moderators of CAD_CAM_EDM_DRO would not like to see discussion about CAM or real-time software on the list. Ofcourse it could get a bit technical, but I don't see why that would be a problem.

AW

]]> By: elwolv http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-377 elwolv Sun, 26 Aug 2007 05:27:28 +0000 http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-377 hello Anders, thank you for your response to forum question. do you know why they do not like to discuss sw matters? or the forum is only for their products sale? thank you again for your comments, i am looking at? elwolv hello Anders,

thank you for your response to forum question.

do you know why they do not like to discuss sw matters? or the forum is only for their products sale?

thank you again for your comments, i am looking at?

elwolv

]]> By: Tero http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-376 Tero Fri, 10 Aug 2007 14:35:48 +0000 http://www.anderswallin.net/2007/08/drop-cutter-in-c-v2/#comment-376 Now that looks pretty! I would concentrate on filling missing algorithms and leave optimizations later. That way you won't lose the optimzations if changes are needed and code is easier to follow, too. Now that looks pretty!
I would concentrate on filling missing algorithms and leave optimizations later. That way you won't lose the optimzations if changes are needed and code is easier to follow, too.

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