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Firepit (help)

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larrycameron44
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Firepit (help)

Postby larrycameron44 » Sun Feb 16, 2014 3:01 pm

image.jpg
Hi folks on the forum. Attached is my firepit. I will add the dxf tonight when home from work, the dxf is designed to be cut on the 2x4 Torchmate. And I cut my 4' x 8' sheets into 25.5" x 48" making 3 pieces plus the off cut. This was 4 millimetre thick plate.

The question I have is this " how do you guys bend the correct angle to weld this up". It was such a pain in the posterior to get it lined up. I cut the back as well to make it easier to bend but is there an easier way to put this together?
It probably took an hour just to bend and line up the 4 sides, or is this just how it is?

Larry
NZ

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Re: Firepit (help)

Postby muzza » Sun Feb 16, 2014 4:24 pm

Although it can be mathematically calculated (but I'm not clever enough) what I do for my first one on any mitred pieces to be fabricated is cut a pair of the end section (just the angles bit with about 100mm of straight) out of some light gauge and bend them by trial and error until the two pieces come together to fit snugly at 90 degrees.
Now you have a bending pattern to make a bending template or to set your protractor square.
Or you can use CAD (cardboard aided design) ;)

I usually overbend them by about half a degree, stand the sides upside down on the bench and put a few tacks along the long straights to form a square and then use a crossed pair of sash clamps to pull the bases together. Much easier to use a sash clamp to pull them together than it is to open them up. Tack the base piece in which makes sure it's square and then weld it up.
Murray

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Re: Firepit (help)

Postby larrycameron44 » Sun Feb 16, 2014 5:35 pm

Thanks Murray appreciate the response
Sorry this is also in the wrong section it should be in the DXF section

Larry
NZ

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Re: Firepit (help)

Postby SomethingMetal » Mon Feb 17, 2014 8:36 am

60 degrees is what I came up with to line the edges up.
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Re: Firepit (help)

Postby larrycameron44 » Mon Feb 17, 2014 3:08 pm

IMG_1258[1].JPG
SomethingMetal wrote:60 degrees is what I came up with to line the edges up.


Cheers somethingmetal. Now that its all welded up I am going to get a digital compas thingy and see what mine says :-)

Thanks

Larry
NZ

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Re: Firepit (help)

Postby muzza » Mon Feb 17, 2014 4:21 pm

Geez Larry, that lawn is looking pretty dry for unzud. You guys having it a bit dry accross there too are you?
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Re: Firepit (help)

Postby weldor2005 » Mon Feb 17, 2014 5:02 pm

I took the bend out, since I didn't want to bend 1/4" (6mm) plate. I cut them separate and welded together, a lot easier for me even though more welding.
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Re: Firepit (help)

Postby larrycameron44 » Wed Feb 19, 2014 4:26 am

muzza wrote:Geez Larry, that lawn is looking pretty dry for unzud. You guys having it a bit dry accross there too are you?
Murray


Mate thats a green lawn for the middle of summer, we still get rain in the summer here. Move over to NZ, you know you want to :-)

Larry
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Re: Firepit (help)

Postby larrycameron44 » Wed Feb 19, 2014 4:27 am

weldor2005 wrote:I took the bend out, since I didn't want to bend 1/4" (6mm) plate. I cut them separate and welded together, a lot easier for me even though more welding.


Yeah thats not a bad idea too, measured the angle at 116 degrees on the outside, but looking at other ways of making the thing easier, maybe welding is the answer :D

Larry
NZ

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Re: Firepit (help)

Postby weldor2005 » Wed Feb 19, 2014 8:08 am

Another reason I did it that way is it gave me more flexibility in where to nest the parts to be able to get it cut from 1 4'x8' sheet!
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Re: Firepit (help)

Postby mike 1948 » Wed Feb 19, 2014 12:13 pm

I must not have enough to do around here. I took the concept and put it to a "tab a into slot b" design. I am not a welder and thought it could be a knock down unit. I may cut it this summer when the snow is gone.

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Re: Firepit (help)

Postby larrycameron44 » Wed Feb 19, 2014 2:53 pm

mike 1948 wrote:I must not have enough to do around here. I took the concept and put it to a "tab a into slot b" design. I am not a welder and thought it could be a knock down unit. I may cut it this summer when the snow is gone.


Mate, that is a brilliant idea, you should share the dxf on that :-)

Larry Cameron
NZ

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Re: Firepit (help)

Postby mike 1948 » Wed Feb 19, 2014 4:35 pm

Here Ya go, let me know how it works out. Its set up for 1/4 inch plate

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Re: Firepit (help)

Postby larrycameron44 » Wed Feb 19, 2014 11:20 pm

mike 1948 wrote:Here Ya go, let me know how it works out. Its set up for 1/4 inch plate


Cheers Mike

Larry
NZ

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Re: Firepit (help)

Postby Largemouthlou » Thu Feb 20, 2014 5:21 am

very nice idea and drawing!! Thanks
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Re: Firepit (help)

Postby Mr.Dirt » Thu Feb 20, 2014 7:44 am

Great idea for fire pit. Not sure if the top will slide together at that angle.
May have to modify the side tabs.

Still love the idea. Great work. Thanks for your work.

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Re: Firepit (help)

Postby mike 1948 » Thu Feb 20, 2014 10:34 am

"Not sure if the top will slide together at that angle."

You may be right, :shock: User beware! Tab mods may be needed. As they say, its the thought that counts.
Edit: I changed the tabs slightly, You should be able to get them together now I hope. If not, use a bigger hammer!!!

Mike

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Re: Firepit (help)

Postby Garysbiz » Thu Feb 20, 2014 11:48 am

Thanks all, hope to try this soon

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Re: Firepit (help)

Postby thissideup » Thu Jan 15, 2015 10:38 pm

This file is the tits! thanks Mike 1948!

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Re: Firepit (help)

Postby mike 1948 » Fri Jan 16, 2015 10:54 am

Your Welcome.
Was there any issues getting it together. I see you did not put the side slots in, any reason?

Mike

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Re: Firepit (help)

Postby thissideup » Sat Jan 17, 2015 2:26 am

no issues, wend together perfectly. I didn't put slots in simply because it's less cutting time. Gave this one away to a charity event.

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Re: Firepit (help)

Postby CNCCAJUN » Sat Jan 17, 2015 2:43 am

thissideup wrote:no issues, wend together perfectly. I didn't put slots in simply because it's less cutting time. Gave this one away to a charity event.


Went together perfectly . . . I like that . . .

Could you clear up for us exactly which files you cut since there was a little confusion as to which ones would work.

Was the side plate the only part in question?

Also you could offer this with a few different side plates with different messages. Like Merry Christmas, etc . . :D

Thanks in advance,
Steve :D
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Re: Firepit (help)

Postby mike 1948 » Sat Jan 17, 2015 1:56 pm

BOTTOM PLATE.DXF
The side plate was the only issue as far as I know. Here are the updated DXF files. Also included a larger version that is about 37" across the top versus 31" for the smaller.
Enjoy

Mike

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Re: Firepit (help)

Postby CNCCAJUN » Sat Jan 17, 2015 4:04 pm

Thank you . . .

Steve :D
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Re: Firepit (help)

Postby Binderman » Wed Mar 25, 2015 6:40 pm

I need some clarification.

Which files are used for the smaller pit?

The design is amazing I just can't figure out which side and bottom plates to use as it looks like both have a sister file.

Thanks!!!


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