Sphere as a rotary job?

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Sphere as a rotary job?

Postby jaru-eri » Sat Jul 27, 2019 1:05 pm

Are there any easy ways to set up a rotary job in order to make a sphere in Vcarve pro? Do I need an STL-file or will it be possible to do it in the program?
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Re: Sphere as a rotary job?

Postby 4DThinker » Sat Jul 27, 2019 8:32 pm

You can do it using the moulding toolpath. A straight line as the guide down the center (equator), and a 1/4 circle vector.

4 inch sphere Moulding Toolpath.jpg
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4 inch sphere 4D.crv
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Re: Sphere as a rotary job?

Postby jaru-eri » Sun Jul 28, 2019 11:59 am

The moulding toolpath is new to me so I think I must have done something wrong when I tried this:
moulding toolpath.jpg
Rotary job size is 140mm long and 100mm diameter and the circle is 92mm. I couldn´t use the crv-file you attached on Vcarve.
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Re: Sphere as a rotary job?

Postby Adrian » Sun Jul 28, 2019 12:36 pm

What version of VCarve are you using? That file is VCarve 9.517
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Re: Sphere as a rotary job?

Postby 4DThinker » Sun Jul 28, 2019 1:01 pm

Try this file. As the cylinder is 100mm in diameter I set the moulding toolpath to start 4mm below the surface to end up with a 92mm sphere. The equator guide line still has to run the full perimeter (width) of the flat material blank. To leave a connection to the remaining cylinder I used a 1/4 circle arc less a few mm plus a short extension so the 1/4" ball nose bit would go as deep as I wanted it to. This is a .CRV file generated by Aspire 9.0.

92mm sphere 4D.jpg
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92mm sphere 4D.crv
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Re: Sphere as a rotary job?

Postby Adrian » Sun Jul 28, 2019 1:24 pm

Sorry, ignore me. I read the post as you couldn't use the file at all rather than it wasn't the same as the setup you needed.
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Re: Sphere as a rotary job?

Postby jaru-eri » Sun Jul 28, 2019 1:36 pm

Adrian wrote:Sorry, ignore me. I read the post as you couldn't use the file at all rather than it wasn't the same as the setup you needed.

I use v 9.517 but when I try to open the file I get the message that aspire files can´t be opened in Vcarve.
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Re: Sphere as a rotary job?

Postby jaru-eri » Sun Jul 28, 2019 1:42 pm

I got the same problem when I increased the guide line. Do you think you can save the file as an stl-file instead? Maybe I then can open it in Vcarve..
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Re: Sphere as a rotary job?

Postby 4DThinker » Sun Jul 28, 2019 2:17 pm

Very Odd. I haven't had anyone ever complain they could open a .CRV file I exported from Aspire unless they were using an earlier version. The only version I have of Vcarve itself is 7.5 but that doesn't have the moulding toolpath in it. At this point I suggest you read up on the moulding toolpath. I can export as a 3D model, but as this is a wrapped rotary job can't advise you on how to import it into a wrapped job and create toolpath for it.

92mm sphere.jpg
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Re: Sphere as a rotary job?

Postby scottp55 » Sun Jul 28, 2019 2:51 pm

Opened fine here 4D,even though this laptop was running VCP9.516 at that moment.
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Re: Sphere as a rotary job?

Postby Adrian » Sun Jul 28, 2019 2:54 pm

jaru-eri wrote:I use v 9.517 but when I try to open the file I get the message that aspire files can´t be opened in Vcarve.

It opens fine for me in VCarve with two different 9.5 versions including 9.517

You should only be seeing that message if you're trying to open a CRV3D file which this isn't.
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Re: Sphere as a rotary job?

Postby jaru-eri » Sun Jul 28, 2019 3:09 pm

I tried to open the file directly from the link and that didn´t work, but when I import it inside the program, i get this result, but I couldn´t figure out how to manage it further.
moulding toolpath 2.jpg
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Re: Sphere as a rotary job?

Postby mezalick » Sun Jul 28, 2019 4:14 pm

Very nice approach 4D,,,Thanks for sharing.
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Re: Sphere as a rotary job?

Postby 4DThinker » Sun Jul 28, 2019 6:38 pm

jaru-eri wrote:I tried to open the file directly from the link and that didn´t work, but when I import it inside the program, i get this result, but I couldn´t figure out how to manage it further.
moulding toolpath 2.jpg

Don't import it. Save it to your PC, then File:Open it in Vcarve.
BTW, you shouldn't use it as I made it unless you have a 1/4" ball nose bit with 2" of cutter. Use a larger area clearance tool to remove most of the wood in steps before you run the Swept Profile toolpaths.

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Re: Sphere as a rotary job?

Postby jaru-eri » Sun Jul 28, 2019 7:13 pm

I think I´m doing something wrong here. I have tried to click on the lines in different ways, but I just can´t figure out how to do it right.
Here is the result when I opened it as a file:
moulding toolpath 3.jpg
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