3dmodel club pics

[dray]

I recieved my scans this morning. These look like the typical med quality scans from a "david" type machine. Alot of the fine detail was lost in the scanning process. If I get time today I will cut this but Im trying to go on vacation, so Im not going to guarantee anything.


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[dray]

Here is a cut preview with a 1/8" ballnose bit on a 10" model

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[knight_toolworks]

depth is going to be an issue. I bought the fairy and a 6" high model has a 1.1" depth can't get away with a 3/64" bit. so I need to make it larger to sue a 1/8" a long one at that since depth is now 2"

[stevem]

Can't you scale these up or down in Z in your CAD software?

[joe]

Thanks very much for sharing.

Steve M. may be correct about scaling these up but it wont' add detail. ArtCam should easily scale these.

[knight_toolworks]

if you change the cut depth you loose detail in cut3d. the depth needs to be removed from the bottom on my artwork.

[3dmodelclub]

Have you consider slicing the models so you don't need to scale them? That's what some other customers are doing and assemble the finished pieces together.

Tom.

[knight_toolworks]

I had forgotten about slicing. but looking at it I don't know on a smaller model that the slices are thick enough to hold up. trying it on the fairy you get part of a wing or part of the hair. I could not see having them stay in tact when cutting them as the parts look pretty thin.

[3dmodelclub]

Steve,

I was looking at the model again in ArtCAM, it is only 12.2 mm in Z. Actually what I meant was you could create the toolpath with multiple passes, if you were going to cut in actual or enlarged size. When I get a chance I will cut in wax or wood on our CNC and post some photos.

Tom.

[3dmodelclub]

David,

I appreciate your comments and feedback and we are looking at ways to improve the qualities of our models and scanned data. We actually do use a laser scanner for all scanning. I am interested about this David type scanner you mention, do you have any sample photos of the quality achieved by these type of scanners?

I also thing the simulation toolpath shot you post is a bit misleading in my experience as what actually comes out of the mill is usually better than what you see on the screen.

Tom.

[knight_toolworks]

I see what you mean. that may work but it will add a lot of cutting time.
one thing that would save time is that inly the model is cut and not the flat around it. provide a outline to do that. cutting all that flat space really slows things down.

[3dmodelclub]

Hi Steve,

From within artcam it is easy to create the outline vectors, or I could send to you as an EPS file to import to your favourite CAD program.

The other thing to do is offset the relief and rough it out first then run a second toolpath with a very fine tool to capture all the fine details.

Tom

[knight_toolworks]

playing with only doing partial depth cuts but this is what I end up with.
so I don't think it is practical to do it in several cuts.I may be missing something I am no expert in cut3d. I found you can import the 3d file into vcarve highlight it and click fit vectors and get the outline. this is far easier then using the eps outline you get with vectorart 3d

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[mitchjr]

I purchased the model with the 3 cape buffalo and I have been scaling the Z. My goal was to cut this for a door panel, but I needed it to be about 24" wide. At this size, the Z was over 3" and once I scaled it down, the detail was pretty much gone. The 3 cape were still there, but the grass and mountains were totally gone. Maybe it was just this one model, but after several attempts, I pretty much decided that this model was just unusable for the job. It is a shame because it was nice.

[bill1]

Well I thought it was myself. I downloaded the section of the Last Supper in STL format and I have been scaling the Z in cut3d and the detail was not very good at all, so needless to say I did not bother to cut it.
Bill.

[3dmodelclub]

Mitch,

We are here to help people with their projects and help them get the best of our our models.

The particular model you are referring to, just cannot scale it to 24 inches wide and then reduce the relief and expect both buffalos and the grass to be as sharp as you would like it to be unless you are prepared to do some work on it.

I don't know what software you use and the capabilities of it, but if I was doing this in ArtCAM I would do something like this.


1. Scale the model to the dimensions you want.
2. Save the relief as a new relief, say call it buffalos.
3. Make another copy as background and scale the Z height as required while keeping the details on the background and the grass etc. This is going to be the main background of the scene.
4. Reopen buffalos relief and Crop the section of the bufffalos. I think if you were to outline just the buffalos you would get a better result when you try to merge the two reliefs at the next step.

5. Scale the Z height of the relief buffalo so it's within your Z limits.
3. Open background Relief and paste with merge relief buffalos

Maybe some cleanup maybe required where you merge the two files but that shouldn't be a problem


Of course when people are ordering a custom model we make sure we know what are their final dimensions so we craft the models proportionaly.

As you can appreciate every project and situation would present its own challenges but I think there is always a way. These are stock models with what we think should work with most cases.

[Forum Admin]

Take this discussion to the 3dmodel forum or private please.