RE: [CAD_CAM_EDM_DRO] Questions about making a vinyl cutter...

The easiest way would be a drag knife. Imagine a 1/2" dia. piece of
plastic with an Xacto blade tip peeking through just over the thickness
of the vinyl, and slightly off center. The effect is the same as a
caster on a chair. Problem with this arrangement is you might need some
lead-in on the part, to let the cutter orient itself. The alternative to
that is use a small stepper to orient the blade. This could be an A axis
in your machine controller software. You would have to figure the angles
through out the part, so the blade could follow along. Or, you could
have a slip setup, so you can "home" the cutter, have the stepper turn
it to the angle to begin the part, then just have the cutter follow
along like a caster from there on out.

To home the cutting shoe, you could use an infrared sensor that "sees"
it's own reflected beam, and put a small piece of Al tape on the shoe.
If the shoe is Al, a small strip of black tape would work.

Regards,
JJ

Be Kind, Be Careful, Be Yourself

> -----Original Message-----
> From: chris_vinluan [mailto:baggy45@...]
> Sent: Wednesday, September 25, 2002 10:49 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Questions about making a vinyl cutter...
>
>
> Hi everyone!
>
> I've been lurking around here for a couple of months and its been
> interesting. I decided to make a small plotter for a project so I
> could have an excuse to use my machine tools more =) Well anyways, I
> wanted to make it a pen style plotter, simple. Then I thought, why
> not make it so that it can cut vinyl also? So I started searching the
> net and I can't seem to find out in detail how a vinyl cutter cuts
> the vinyl! I also can't figure out what the blades look like, how
> they are mounted, and how much torque is required from the motor to
> pull the blade through. If anyone could help me out with these
> problems, that would be great! Thanks for your help!
>
> -Chris
>
>
>
> Addresses:
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> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
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