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I think can do the code in visual basic given enough time :) Pablo |
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When I get a chance, I might write a macro to do it in AutoCAD.
Does anyone know a way to get a .dxf of circles out of Inkscape? I've spent the last two hours trying, but it seems that .pdf is the only way that doesn't take forever. But I do have Aspire that I can use. But an AutoCAD macro would give me a more optimized toolpath |
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For a V bit, the depth = Radius of circle/tan (1/2 cutter angle)
For a 6mm circle, with a 60° v bit, the depth = 3/tan(30) = 5.196mm deep |
A friend of mine offered this solution for the sphere, can you validate it?
c=ballmill radius d=circle diameter depth of cut=c-sqrt((c^2)-(d/2)^2) I will test it empirically with Solidworks :) [edit] works! Pablo |
yesterday I sent an email to the developer with the formulas and some comments about how to implement gcode generation to the program, today he replied saying that he was already working on the new version and it should be available today or tomorrow as he was waiting for some betatesters, he even provided this image:
http://i54.tinypic.com/2qls7jn.png I would like to think that brilliant minds think alike, but he actually did all the heavy lifting :) :) Pablo |
Version 2.0 is up!
http://www.students.tut.fi/~syvajar3...lftone20_1.jpg Path width modulation example video: http://www.youtube.com/watch?v=jqksgmyWI3k Download here: http://www.students.tut.fi/~syvajar3/ Have fun! I'm looking forward to see your work. :) |
Amazing Tomi !! and welcome to the forum. BTW, Tomi is the software developer.
For some reason I cannot make the wave method to be shown in the preview, how does preview knows which method to show? |
general tab, dumb me :)
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Hi Tomi! Great looking software! Is there an easy way to output the code into inches or to set the software up in inches? Keep up the great work! Really cool, wow!
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Hi Ger, your right....it worked! Thanks. All the code looks good. The program outputs the number to the 10th decimal place. I hope mach will read/run it ok. I'll have to try it out when I get home.
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Tomi, that is so amazing!
I would love to have a metal speaker grill (a funky car sub grill, more like) with a half-toned logo made of the drilled holes :-) More reasons to build a CNC. Someday, when the space-time-money conundrum is solved... |
Works fine in inches
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Grabbed a pc of mdf and a can of black. Mach ran it fine..... 4300 holes, 30 inches per minute, picture is 8.8 x 10.5 ish. I like how simple it is!
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Hi Tommi,
Great software! It works! Will try to run on EMC2 once I get a chance. Thanks for sharing. |
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fabric paint and press it on a T-shirt. This half-tone stuff is way cool! |
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Worked no worries with EMC2. Can the software write the gcode for the cut out?
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Nope, making cutouts is not supported.
Adding that feature would require a new tab of UI and all kinds of parameters such as endmill dia., offset, tabs, pass depth, material thickness, ramped plunges... to be any good. Making and tweaking the user interface for new features usually takes longer than coding the actual stuff and is frustrating, boring work. I'm starting to understand why Linux coders like to make console apps. |
Tomi,
You listed off all the options/parameters just to cut out or profile cut and I could put a tick next to all of those options, it is amazing how I as an end user take coding software for granted. |
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Another photo, this time my wife:
http://www.youtube.com/watch?v=op_tHMJI7FY http://i54.tinypic.com/69j8u9.jpg Pablo |
Hey Pablo, you could have used a nicer sheet of wood for such a lovely lady :D
Looking good, mind sharing your sizes, settings and bits used. I tried one the past weekend and it was not THIS good. |
LOL yeah, I used an old piece of scrap melamine, I will buy mdf coated with melamine that is used for drawer bottoms and cabinet back panels, its only 5mm thick and very cheap because melamine is on one side only, but in the meantime you use what you have at hand :)
I used white/black, a 45deg V bit, min diameter 0.4mm and max diameter 2mm, spacing also 2mm, Z needs to be very accurate using these settings because when the hole is 2mm, and there are many next to each other, there is almost no material left in the surface, and you need it for contrast. I did not show the other side of the board for a reason :) I set it up a little deeper and in the hair area the holes ate all the melamine. |
OK so basically it is one of those ENGRAVING bits. I used my 90 deg 12mm bit.... I see some contrast, but not good enough.
What is the overall size of the piece ? Did you wipe in BLACK paint to fill the holes for more contrast or is that the wood colour we see. (brownish) |
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Salve!
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It would be possible in future implement halftones with straight lines? Abs. Paulo Marcos G. Bubolz ---------------------------------- Design libertário - Arquivos Gratuitos para Fresa/Corte |
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The board size is 210x210mm. Yes, after machining I used a very liquid mixture of black tint to darken the holes and then wipe the excess with a cloth. |
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And for everybody else too: If you haven't noticed, there is a user guide in the readme file that comes with the software. It briefly covers every setting and feature that the program has. No offense :) |
Non taken :) maybe a little question mark that links to the help file would save you answer that question again.
Looking at the source code I found this comment that made me happy: 'the size limits from dxf export tab also affect the gcode generation I just tried it and indeed a lot of holes are not created thus saving a lot of time. In my wife carving it would go from 10081 to 6312 dots, about 40% less machining time Cool :D |
Version 2.1 is up!
The changes from version 2.0 mainly consist of some significant bug/glitch fixes. It is highly recommended to update. The dot halftone toolpath is now optimised, it goes back and forth instead of doing long rapids. Changelog entry: Code:
4.9.2011 V 2.1 Polishing, some important fixes. IMPROVEMENTS / FIXES: -Fixed multiple problems with path width calculation algorithm. -More accurate results with large line spacing values. -Much less noise / artefacts with small resolution source images. -Fixed path endpoint sizing problems. -Improved performance with large image files. -Optimised toolpath generation ( shorter rapids ) for dot halftones. -Added "optimiserapids" option to save file format. When set to zero, all path filler lines will be run in the same direction. -Fixed a nasty memory leak where none of the memory allocated for the path data was freed. -It was caused by the Blitzmax's carbage collector's inability to handle circular references. -Now works with huge amounts of filler dots ( tested with over 5 Million dots ). -Also tested to work with up to 100 Megapixel source images. -Changed the default settings to give a better first impression. http://www.students.tut.fi/~syvajar3...alftone_21.zip |
Thousand Thanks! This is wonderful!
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Thanks Tomi, it gets better and better every release. Thanks!!
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I thought I'd just add that you can create these sorts of images in Illustrator with the Object Raster script from Scriptographer.org. e.g.
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Kind of a Half-Tone thing. I wonder how they do this?
http://www.interlam-design.com/Mirage_ProductList.cfm |
Perfect for cnc.
Take a peep at their wall panels which they call art diffusion http://www.interlam-design.com/Art_Product_Search.cfm Its an impressive gallery of designs of which many can be done with a cnc machine. |
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It works like a worm eating the photo, at worm speeds :) |
I have a version of the Reactor software written to use your graphics card for processing, and it is easily 10x faster, more if you have a good card. So far I've been restricting that version to commercial users, but I may change that.
I also have a halftone program with similar capabilities to Tomi's, and a realtime preview. Jason |
If you ever release it let us know Jason, in the meantime is fun to see the worms eat the whole picture :D
Thanks for the free software!! |
I like the "worms" much more than the other patterns because they give a better definition:
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Cool Thanks!
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Thanks for the great software!
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