Controlling start depth of each model?

[Davo]

Let's say I have a 3D rope boarder an a 3d object in the middle...

So far the rope seems to start at the very bottom of where the center model ends.

I'm wanting to be able to keep the rope on top of the material without being affected by the center model

The rest of the material is unaffected and is not planned down, but for some reason the rope is being pushed down in start depth even though it's thin in height

I tried base height with a small model height and it starts closer to the surface but still deep with a long extrusion

[cowboy1296]

Not sure i know how to answer your question. I do a lot of rope borders. I cut these from 1.7 inch blocks of wood. I prefer my rope to be about .25 inch below the surface which means my perimeter is close to 1.45 inch thick. you can always add to to your base height or shape, but you an also do this so much that the rope will not look right. can you post a screen shot of what you are trying to do.

Another way to skin that cat, is to put your center 3-d model in a bowl, which would keep your rope just below the surface of your wood.http://www.talkshopbot.com/forum/attachment.php?attachmentid=25384&stc=1http://www.talkshopbot.com/forum/attachment.php?attachmentid=25385&stc=1http://www.talkshopbot.com/forum/attachment.php?attachmentid=25386&stc=1

[Davo]

I will get a screenshot - off topic... What's your machine time for those pieces?

[cowboy1296]

Many hours, such as 12-15

[Davo]

Actually I meant the 3d rastering time for one piece

[cowboy1296]

if you are referring to the finishing tool path then 12-15 hours. I have done some that are longer than 20 hours and that does not include the roughing tool path. Here isone longest, which had a lot of z. Its not the x and y dimensions that add http://www.talkshopbot.com/forum/attachment.php?attachmentid=25387&stc=1so much time to 3-d but is the depth of the z that does. But sometimes the deeper the z the better carving you produce

[Davo]

That's an absolutely awesome piece right there!

You are giving outstanding quality work to your customers

[cowboy1296]

that one was a donation to the new news paper in town. They are all about God, Country and guns which i had to support. And i did not do the finishing, the furniture maker did.

[pappybaynes]

I had some problems with a recent sign with a rope edge and a dished 3d model...still not totally out of the woods on it, but after view this video where they talk about the "zero" plane it helped a great deal... http://support.vectric.com/tutorials/V8/GolfAward/GolfAward_3DAS.html
Dick

[Davo]

I thought the new aspire got rid of the need for a zero plane?

[Joe Porter]

Davo, use the Model drop down and halfway down is the "Zero Plane" option.....joe

[coryatjohn]

Wow. It would have taken some Italian guy six months to carve that by hand.

[cowboy1296]

trust me on this one. If i did these by hand they would look like a pile of splinters.

[Davo]

Here's 2 shots - one has the rope on top how I want it - adding an apple throws it all down - how do I keep the rope up top with another model at a different height

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[cowboy1296]

I have had good luck with putting just a vector outside of the rope. Then highlighting both components and that one vector and then calculate. try that and see if you like it.

[cowboy1296]

i would also add some shape height to your rope.

[Davo]

I will test it out - but it goes from machining the rope at the surface to machining it 1/2" lower - moves it down based on height of the apple

I wasn't able to figure out how to make it stay on the surface of the wood

Everything becomes flush on the bottom of the wood

[tomhartnett]

Rick has the right idea. What you want to do is add a vector around your 3d apple. A circle/oval would be best for your model, I did a quick mockup of your model with clipart in VCarve SBE 8.0 and attached the different models. When creating the toolpath, select your apple then shift click the ouside vector (oval) and check the box in "Matching limit boundary" for "selected vectors". Also be sure in your model you are zeroing to the top of your material. When not doing through cuts, and especially when doing 3D, you often will want to zero your Z to the top of your material.

-Tom H.


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[Davo]

Try making that Apple 1" and see if the issue is still there?

[tomhartnett]

The height of the components of the model should not effect other components if you individually adjust them. Be sure you don't have both components selected when you edit your file.25402254032540425405

[cowboy1296]

when ever i do these, which may not be the right way. but i machine the whole part, even the flat areas as part of the 3-d file. So when i do it i select the outside vector and all components inside of it. In this case there are 9 components. To machine around each of them individually would be a nightmare. In the screen shot the outside profile vector is selected but may not show up that well.
http://www.talkshopbot.com/forum/attachment.php?attachmentid=25406&stc=1http://www.talkshopbot.com/forum/attachment.php?attachmentid=25407&stc=1

[Davo]

The issue with the height of the apple affects the overall height of the rope is the problem

I can adjust the base height to match the apple but then it's a .5 in tall rope

My goal was to maintain a small overall height of the rope but then go deep into the wood for the other model

I may have a .125 rope but the base height makes the entire thing as long as the apple

I'm going for a stair case method, same thickness, different levels


The example you put here shows what I mean about the rope having to become to long from its original insertion height

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[Davo]

Im basically trying to not machine the entire surface of the work area

Only the two model boundaries

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This mock up is what I'm trying to achieve
Thin rope at the surface with deep apple core..
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[tomhartnett]

Ok so here's what I have. Thin rope, deep apple.
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Here are the vectors.
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Apple properties.
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Rope properties.
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And here it is fully tooled. With the rope confined to its own rectangular vectors, and the apple contained to its own circular vectors. Note the toolpaths only machine the models. It does not go beyond the boundaries of the rope or apple and the overall material height is not effected.
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Hope this helps.
-Tom H.

[Davo]

For some reason it hated me when I first did that and refused to work that way

I will try that out again

Thanks!

On a side note I cannot seem to find ropes with the tapered edges like your model shows

I seem to only have the rope itself - never mind I think I overlooked it

[tomhartnett]

Sorry that it wasn't working for you. The rope border I used is in the clipart, and is the one on the far right if you have the SBE 8.0 clipart loaded. Not sure about previous versions.
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Best,

-Tom H.