Reverse rounded corners

[NolaSignGuy]

I have a customer asking for specific sizes of aluminum to be directly printed on a UV flatbed, however they are asking if the corners can be inverted instead of the typical rounded corners. I have never done this before, only purchased signs pre-cut this way in the typical 12" x 24". Is there a machine I can purchase that is reasonable for doing this as they are going to want more and it's something I can add to our catalog. TIA for any info.

1st post :signs101:

 

[NoMovingParts]

Like a cheap drill press & a hole saw?
(hope I'm reading this right...)

 

[CES020]

It's called a notch or scallop (not totally correct, but close). Not sure how thick you're talking, but here's one place- the cornermate will do .040". Probably a little thicker, but that's all they say.
It'll do a 1" notch.

http://www.accucutter.com/Cmate 040.htm

 

[Mosh]

Thanks, you know how long I have looked for a table mounted slot punch. We have a hand-held and it is hard to use. Those other dies are cool. I am ordering one of each today.

 

[NolaSignGuy]

i'm just talking about .040 aluminum, and thanks for the advice i appreciate it

 

[ionsigns]

Scallop?

Alumapanel? Hall Signs? Grimco? Suppliers with large volume sales usually have some good ideas. If the substrate is aluminum you can make a jig to hole saw out the rough radius and use a drum sander to finish. If blank is oven baked enamel receptive for direct print...what do to about the exposed metal where the scallop cut out?

 

[Mosh]

ionsigns, when we use our corner rounder you do not even notice on .040 that the edge is not painted. Same goes when we cut blanks down on the shear, we don't go back and paint the edges. Not like it is going to rust.