Re: [CAD_CAM_EDM_DRO] Re: CNC Etch-A-Sketch, EggBot

Yo Alan;

Vacuum would work, as long as it's not strong enough to, "suck eggs" :-)

My thought would have been to make a coat hanger wire ring a little larger than
an average egg. Weld the ends, and clip them off. Weld 3 or 4 similar wires to
the outside of the ring, and extend them down to a clampable rod or bar. Spread
some silicon around the inside of the ring. Wait for it to get a little
stiff-ish, grease up a hard boiled egg with something, (spray no stick?), and
let it finish curing. If it won't come loose, at least the hard boiled egg will
still be edible, won't make a mess, and you can pick the pieces loose with
something sharp, leaving a nicely rounded holder. Cover the sides, and string
in a vacuum line to it if you like. Do it on both ends, and you got an, "egg
lathe", for interestin' orderfs.....:-)

Bill

On Sun Dec 30 15:46:29 2001, Alan Marconett KM6VV, <KM6VV@...> wrote:

>Hi Bill,
>
>Hold the egg from one end? Maybe some type of suction device? I'd
>really like to apply the little floppy disk stepper motors (I've got a
>bunch of 'em), I'll have to see how much weight the 'X' axis can hold
>(moves the 'Y'). I think I've got the axis right, 'A' rotates the egg,
>'X' transverses along the axis of the egg, and 'Y' must be radial to the
>egg's axis.
>
>And "work" the entire end? Bruce's unusual 'X' axis eggpoach (approach,
>sorry!) could address that, I think!
>
>Alan KM6VV
>(Egg-a-holic)
>
>
>Bill Vance wrote:
>>
>> Hi gang;
>>
>> This might be ok for making a decorative band around the egg, bu what about the
>> ends? You have two totally different hemispheres there. Even though it would
>> take two times through through, "the mill", some designs would be easier to
>> implement from the ends, and maybe easier to hold the egg, too.....
>>
>> Bill
>>
>> On Sun Dec 30 08:46:02 2001, IMService, <imserv@...> wrote:
>>
>> >> Date: Sun, 30 Dec 2001 00:04:10 -0800
>> >> From: Alan Marconett KM6VV <KM6VV@...>
>> >>Subject: Re: Re: CNC Etch-A-Sketch, EggBot
>> >
>> >Alan I would think the easiest way to do the egg would be to treat it as a cylinder and have a spring loaded pen for the Z variations of the eggs surface.
>> >
>> >My second choice would be to digitize the form. One set of points along the longest axis would be all the probing needed, and then use an arc-spline of the points to create the template for the extrusion.
>> >Draw the design in the flat, then use the extrusion template to create a 3D unrolled representation of the surface. You could then use the Z-A swap trick to develop the G-code for the surface, or else, use Vector's Wrap cylinder to develop the 3D surface, from which you could either draw X-Y-Z coordinates using about 1/4 of the surface and indexing, or else use the VectorPlus rotary 4th axis to generate the entire drawing path directly from the model.
>> >
>> >Best Regards, Fred Smith- IMService
>> >Listserve Special discounts and offers are at: http://209.69.202.197/cced.html
>> >
>
>
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