How so I VCarve this Star

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kennethbass
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How so I VCarve this Star

Post by kennethbass »

I am trying to vcarve this star. I copied the bitmap and then added the lines. I keep geting open vector and intersecting lines errors. I am very new to VCarve and I have watch a whole lot of tutorials but I just not getting how to make this work. The flat area within the circle and outside the gold star is supposed to be 1/4 inch deep with VCarved along the lines. If someone could point me in the right direction I would appreciate it.
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Bitmap Star with vectors.JPG

sharkcutup
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Re: How so I VCarve this Star

Post by sharkcutup »

Pocketed Star.png
Something like this?

2 tool paths
Pocket Toolpath --- Select the outside vector of the star (provided it is a closed vector all around its outer perimeter) and the Circle Vector using an endmill one for large clearance (.25" maybe) and the final tool (.125 for cleanup)
Profile Toolpath --- Select all vectors inside the star and use a v-bit. These vectors I am assuming in your file are not closed vectors so you cannot use the V-Carve toolpath for it only allows closed vectors but you can use a the Profile ToolPath with a v-bit.


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Rcnewcomb
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Re: How so I VCarve this Star

Post by Rcnewcomb »

Use the 3D file from Design and Make. It is $10 for one style or $18 for all three styles.

Image
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adze_cnc
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Re: How so I VCarve this Star

Post by adze_cnc »

kennethbass wrote:I am trying to vcarve this star.... I am very new to VCarve...
Welcome to the sometimes confusing nomenclature of Vectric products. VCarve is the program name (VCarve Pro or VCarve Desktop). But, there is also a toolpath within the program called "V-Carve / engraving" sometimes shortened to "V-Carve" as Sharkcutup did or often and quite confusingly VCarve.

Is your intention to draw lines, as Sharkcutup pictured, or to have the facets of the gold star angled as the 3D model whose image Rcnewcomb posted?

You might get familiar with layers and the vector selection dialog to select vectors to machine by layer. It'll make your life much easier.

For example, using Sharkcutup's image, I might have 3 layers:
  • circle
  • star
  • radial lines
For the pocket toolpath, using the selector dialog, I'd choose closed vectors on layers "circle" and "star". For the profile toolpath I'd choose open vectors on layer "radial lines".

I suspect when creating a toolpath you selected both the closed star vector and the radial lines vector and VCarve is detecting that the lines intersect the star and can't deal with it properly.

I hope this helps. Steven
sample vector selector dialog
sample vector selector dialog

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Adrian
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Re: How so I VCarve this Star

Post by Adrian »

This post - http://forum.vectric.com/viewtopic.php?p=138069#p138069 - shows one way of making a prismatic star with v-carve toolpaths without rounding the inner slopes.

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Re: How so I VCarve this Star

Post by sharkcutup »

Wow! What a wave of knowledge from just a little information given!!!!

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kennethbass
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Re: How so I VCarve this Star

Post by kennethbass »

I apologize for the lack of information given. As a newbie to all of this its difficult to explain something you don’t quite understand. You are absolutely correct about the wealth of information. Your first post on my quest was not quite what I was trying to do. The Post by Rcnewcomb was exactly what I want and I may give up and go purchase it, but not before I try what Adz_cnc suggested. The post from Adrian was also helpful, it is what I want but it was a little over my head. I am planning to find training videos on using layers and see if I can get the star I put together to work. At the end of the day the information given by everyone has really been very helpful.

ezurick

Re: How so I VCarve this Star

Post by ezurick »

Quite honestly, I would suggest to stay away from 3D carvings as a newbie... Go to the Vectric tutorials and start to learn everything you can on the basics first. Especially you need to learn you machine and its capabilities first. It was many months after I got my machine before I even attempted any 3D projects. Another great source are the monthly free projects. Download some of them and dissect them. Be sure to check and change the toolpath settings for YOUR machine. But start with the tutorials first.

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adze_cnc
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Re: How so I VCarve this Star

Post by adze_cnc »

kennethbass:

If you'd like to play with a 3D star to see how the "roughing" and "finish" toolpaths might work try the attached file. Decompress to
"star-3D.3dm" and then use Import 3D component in VCarve.

The star is 8 inches at its widest and 1/2 inch thick.

Steven
star.png
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star-3D.zip
Rhinoceros v5 - star model (compressed to ZIP file for upload to forum)
(24.08 KiB) Downloaded 18 times

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mtylerfl
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Re: How so I VCarve this Star

Post by mtylerfl »

For the folks who own the Aspire software - making perfect Prism Stars is one of the easiest modeling tasks to do. If you are interested, I made a 5-minute video showing how to do it (if you don't already know). Here's the link:

https://www.screencast.com/t/udKMOOVo
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prism-star.png
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highpockets
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Re: How so I VCarve this Star

Post by highpockets »

Thanks Michael, really enjoy your tutorials....
John
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mtylerfl
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Re: How so I VCarve this Star

Post by mtylerfl »

highpockets wrote:Thanks Michael, really enjoy your tutorials....
Thanks, John!

Here's a screenshot of the sweep settings (I forgot to narrate it is crucial to have the "Scale cross sections with width" selected for this particular sweep model.
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FixitMike
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Re: How so I VCarve this Star

Post by FixitMike »

And here is another way to create a star, using VCarve.
Use the Clipart-3D Tabs-Pyramid_0.25. Add a Zero plane. Tilt the model so it makes a star point. Bake. Circular copy about the high end to make a 5 point star.
.crv file at: https://www.dropbox.com/s/r504ls9r9wgwkk3/Star.crv?dl=0
Star-5 point.jpg
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mtylerfl
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Re: How so I VCarve this Star

Post by mtylerfl »

Now THAT is thinking “outside the box”! Very clever method for VCarve owners, Mike!
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FixitMike
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Re: How so I VCarve this Star

Post by FixitMike »

Mike Tyler has given me some additional help that really refines my method for the star. Here are his instructions:

Using your existing star.crv go into the Modeling Tab.
1) Turn off the Zero Plane Component (uncheck it)
2) Select all of the star components, then right-click and make them a Group
3) While the Group is selected, click on the Wrench icon
4) Now click on the Bake button to permanently combine those components into one, single component. Click Close to exit
5) Select the new single component, then click on the Slice icon
6) Enter the thickness of your Zero Plane (0.5” in this case), uncheck the Create Boundary Vectors, then click Slice Model
7) Now turn off the original baked model and the Slice 1 model
8.) This leaves you with just a Star model (Slice 2 which you can rename, resize, change height, etc. as you wish)
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