Anybody knows how to round corners?

[rubo]

Hi folks - need help here - I need to round corners on aluminum sheets
0.025 gauge,the size will be 30x40 or larger - don't have a plasma machine or CNC - short of doing it w jigsaw and a file - some kind of a punch maybe? Tnx!

 

[J Hill Designs]

grimco has corner rounders for alum. -- but @ .025, you could probably use a paper one from a craft store

 

[rubo]

will check it out right now. guess the number was off - it should have been 0.25. Tnx!

 

[J Hill Designs]

oh 1/4"? not gonna find a die for that I'd imagine. why not use like alum composite? 1/4" alum at 30x40 = HEAVY

 

[JimmyG]

.025 would be very easy to cut with "tin shears".... draw the radius from a circle template and hand cut, with new sharp shears you likely will not need to file...

...

 

[rubo]

Has to be uniform - and has to be aluminum - client's request. not a sign job - client is a photographer, bent on aluminum. Tnx for the input!

 

[Pat Whatley]

At 1/4" you're looking at some serious hardware if you want a punch to round the corners, you're talking $3000 plus for a metal working press plus the rounding dies.

If you're just doing a few I'd break out the jigsaw and angle grinder....or find somebody with a router or water jet and send them the full sheet to cut down for you. You're in LA....there can't be more than a few thousand water jets around there.

 

[mgcustomgraphics]

I RECOMMEND GETTING A GRINDING WHEEL, THEY GO FOR A COUPLE HUNDRED, ITS WORTH IT IF YOU DO THIS A LOT AND ITS FAIRLY SIMPLE I USED TO DO THAT KIND OF STUFF WHEN I WORKED IN A MACHINE SHOP, HERE'S A VIDEO I FOUND ON YT. IT'LL GIVE YOU THE BASICS. http://www.youtube.com/watch?v=kXXd4dI40ls

 

[rubo]

it's not 1/4th of an inch - it's getting embarrassing - I remember 25, not sure how many zeros, but it's as thick as stack of 10 sheets of plain printing paper so I hope the Grimco's tool will do. Tnx again!

 

[J Hill Designs]

well, 25 guage aluminum is almost paper thin at .017" thick... I'd try the paper one from michaels/walmart first

 

[FireSprint.com]

You probably need a pretty good sized metal shop to fab those for you. 1/4" Aluminum is well outside the range of a sign shop I think. Even the .080 we use which is about 1/12" thick takes a bit of work to fabricate.

 

[Edna]

My husband has a ironworker hyrdolic that has a corner rounding bit attackment and a nocher and several hole punch in different sizes.

 

[aaronJREgraphics]

make the corner marks with sharpie and get a tiger paw grinding wheel it will take small amounts at a time and it gives a nice polished edge take it off till you have no sharpie left I used to do aluminum welding and did this method to round corners all the time just be careful and have a steady hand and you should be fine.

 

[Border]

LOL, reminds me of this classic.

http://www.youtube.com/watch?v=iX3kxAA2L4Q

 

[mgcustomgraphics]

it's not 1/4th of an inch - it's getting embarrassing - I remember 25, not sure how many zeros, but it's as thick as stack of 10 sheets of plain printing paper so I hope the Grimco's tool will do. Tnx again!

I'M 99% SURE ITS 1/8 IF AN INCH WHICH IS .125, MAYBE THAT'S WHERE THE 25 IS COMMING FROM LOL

 

[SignManiac]

The first thing I would do is verify the correct thickness of your material before deciding on the appropriate method of rounding.

 

[J Hill Designs]

jeez mgcustom...ya don't have to yell! =)