Corbel Help Needed

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Corbel Help Needed

Postby ehaney » Thu Sep 28, 2017 10:49 pm

I need to cut (6) corbels (pdf attached) for a headboard project but I'm stuck and could you use some help. The sides are plain so only need to machine the top. I would appreciate any direction on how an experienced user would go about designing and tool pathing. I have experimented with two rail sweep and creating shapes by watching the tutorials but have come up empty handed. I have Aspire 4.5 and a ShopBot Buddy. Thanks in advance for any help, Eric
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Corbel.pdf
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Re: Corbel Help Needed

Postby highpockets » Thu Sep 28, 2017 11:16 pm

Is the shallow pyramid concave or convex? Also does it have to be a rectangle or can it be a square?
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Re: Corbel Help Needed

Postby ehaney » Thu Sep 28, 2017 11:28 pm

Convex flush with top surface. Could be square. Thanks
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Re: Corbel Help Needed

Postby highpockets » Fri Sep 29, 2017 12:09 am

Something like this?

Image 9.png
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Re: Corbel Help Needed

Postby ehaney » Fri Sep 29, 2017 12:58 am

That looks great!, although I think I told you wrong. The top of the pyramid wants to be in a flush plane of the top of the part and then the pyramid sides go into the part a shallow depth. Everything else is exactly what I am looking for. I really appreciate your help and if you can help direct me to how you accomplished this, I would be very grateful! Thanks again, Eric
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Re: Corbel Help Needed

Postby highpockets » Fri Sep 29, 2017 1:33 am

Not sure what you mean " The top of the pyramid wants to be in a flush plane of the top of the part and then the pyramid sides go into the part a shallow depth", but this should get you started.

I used Molding Toolpaths for both the pyramid and the tapered bottom part. To create the flutes I previewed the pyramid, tapered bottom part and profile cut and removed the scrap. I then used the "Create component from toolpath preview" this allowed the use of the Project toolpath onto 3D model option of the fluted toolpath.

Hope this helps.....

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Re: Corbel Help Needed

Postby ehaney » Fri Sep 29, 2017 2:20 am

Thank you for your help! I'm unable to open your file because I have an older version of Aspire, v 4.5. I should upgrade!!! But I'll try to use your good description to try to replicate. Thanks again for your help! Eric
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Re: Corbel Help Needed

Postby highpockets » Fri Sep 29, 2017 2:35 am

Sorry, didn't know.... Does Aspire 4.5 have the Molding Toolpath?
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Re: Corbel Help Needed

Postby Leo » Fri Sep 29, 2017 4:28 pm

John,

You made a concave pyramid.

He wanted a ConVEX pyramid - tip is higher than base
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Re: Corbel Help Needed

Postby highpockets » Fri Sep 29, 2017 4:46 pm

You're right Leo, I miss read his response to my question :oops: :oops: :oops:

I'm not sure how to help though, I don't have Aspire 4.5 and have no idea what tools it has.
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Re: Corbel Help Needed

Postby highpockets » Fri Sep 29, 2017 4:53 pm

For completeness, here's the revised corbel....

Image 027.png


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Re: Corbel Help Needed

Postby martin54 » Fri Sep 29, 2017 8:05 pm

John I don't think 4.5 has the moulding toolpath & not sure there is any other way for you to help since there is no model to export as stl :lol: :lol:
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Re: Corbel Help Needed

Postby highpockets » Fri Sep 29, 2017 8:16 pm

martin54 wrote:John I don't think 4.5 has the moulding toolpath & not sure there is any other way for you to help since there is no model to export as stl :lol: :lol:


I think you're right about not being to help with 4.5. That was way before my time so I have no idea what tools are available. However if Eric likes the corbel as is then I can create an STL. :) :) :)
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Re: Corbel Help Needed

Postby martin54 » Fri Sep 29, 2017 10:58 pm

I think you're right about not being to help with 4.5. That was way before my time so I have no idea what tools are available. However if Eric likes the corbel as is then I can create an STL

I was going to say you won't be able to do that because the moulding toolpath doesn't create a component that you can export but I am guessing you are going to create a model using the toolpath preview or something like that rather than the modeling tools such as 2 rail sweep :lol: :lol:
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Re: Corbel Help Needed

Postby highpockets » Fri Sep 29, 2017 11:09 pm

Martin, that is the plan. I don't plan on starting over with a 2 rail sweep, I don't even know if 4.5 has the 2 rail sweep.....
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