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 Post subject: Re: Thinking about CNC
PostPosted: Tue Mar 25, 2008 12:34 pm 
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I can't buy into that explanation, it doesn't rhyme nor fit into the song we all learn when we're kids....

Q R S, T U V, W X, Y & Zed? Nah....doesn't work!

beehive laughing6-hehe

I thought it had to do with "Zero"???

Nevermind, been watching too many episodes of Stargate...
:oops:

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 Post subject: Re: Thinking about CNC
PostPosted: Tue Mar 25, 2008 2:16 pm 
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Walnut
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Well someone sent me a copy of an older cad program called "Auto" cad . Are any of yall familiar with that and is it worth the effort to load it on the puter??


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 Post subject: Re: Thinking about CNC
PostPosted: Tue Mar 25, 2008 4:00 pm 
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AutoCad is somewhat an industry standard for sort-of reasonable cost cad packages. Definitely worth loading and playing with.

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 Post subject: Re: Thinking about CNC
PostPosted: Tue Mar 25, 2008 7:56 pm 
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Cocobolo
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FYI:

The world seems to be heading towards "parametric" modeling programs....

These are packages like Solidworks, Catia, Alibre, Pro/Engineer wild fire etc to mention a few. In these packages, you basically start with sketches, and then give them "parameters" (like relations to each other, and dimensions) and then you create solids and surfaces. One can then go back and simply change these parameters if desired, to alter the part.

Autocad is a much different program, and does things differently. I have heard numerous stories of people finding it difficult to make the switch from Autocad, to newer parametric modelers.

Just wanted to mention this, in case you wanted to start out with something else.....

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 Post subject: Re: Thinking about CNC
PostPosted: Tue Mar 25, 2008 8:12 pm 
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Koa
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Parametric software generally needs more computing powerin addition to being more expensive. AutoCAD was "the" standard cad package for years....it is still a very capable package for 2d work...but if you are interested in designing carved forms there are better packages out there.

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 Post subject: Re: Thinking about CNC
PostPosted: Tue Mar 25, 2008 8:55 pm 
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Brazilian Rosewood
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I'd say AutoCAD's worth using if it's free. It's not worth paying for any version of it. There is software which dominates it at every price point.

Parametrics have their place, but the extra work is only really worth it in the case that you're going to be modifying the model dimensionally. If you're talking about machinery parts, then absolutely go with parametrics, but most lutherie stuff is much more suited to a straight up modeler like Rhino.

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 Post subject: Re: Thinking about CNC
PostPosted: Tue Mar 25, 2008 11:31 pm 
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Bob Garrish wrote:
I'd say AutoCAD's worth using if it's free. It's not worth paying for any version of it. There is software which dominates it at every price point.

Parametrics have their place, but the extra work is only really worth it in the case that you're going to be modifying the model dimensionally. If you're talking about machinery parts, then absolutely go with parametrics, but most lutherie stuff is much more suited to a straight up modeler like Rhino.


Hey Bob, I don't know if you're using a parametric modeler or not but you might consider it. It's very nice for changing string spacing on bridges, scale lengths / widths on necks and finger boards. It's also nice for just tweaking designs in general. But your right in that it's not really necessary.

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 Post subject: Re: Thinking about CNC
PostPosted: Wed Mar 26, 2008 11:12 am 
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Brazilian Rosewood
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I use parametric CNC programs for that, actually (pin spacings, FB tapers, etc). I can see where the parametrics might come in handy on the CAD side if you need to deal with a lot of different necks, fretboards, bridges, etc, I just find the modelers sort of cumbersome for that sort of modeling. I might give a go of setting up all the curves ('sketches') in Rhino and then generating the geometry and defining some transformations in a parametric modeler.

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