Welcome to Peterson Metal Arts.
As a metal artist I have been around for a couple of years now but this (the
fire globe) is my first major art project. In the past I messed around a lot
with making strange little animals and other creatures out of discarded materials (a lot of
shovels, rebar, pliers, bolts, nuts, washers, and etc.) I have also built
gates, metal arches, window well covers and other types of projects you would
consider functional rather than artistic. I will post some photos of these
later on.
Recently my wife and I were at a lawn and garden store and I
stumbled across an assortment of tank caps. These are caps that are used on
commercial propane tanks. When the tank ages and needs to be decommissioned
they cut them up. The caps get "repurposed." People buy these
(mostly) for large and decorative planters. When I came across them I had a
different purpose in mind.
|
Seen next to my PT Cruiser for scale |
I brought home two of these and they were in the same condition, they were completely covered in rust that had to be removed before I could start work.
|
Neatly cleaned now |
I cleaned the tank caps with an orbital sander and wire wheel that was attached to my drill. This was a slow and laborious process but it cleaned both of them up nicely.
|
Starting to cut the top |
After cleaning the rust off I drew a pattern on one of the caps and cut the pattern out using my plasma cutter. The image is Kokopelli (a native American fertility God) over his should is a full moon and in front of him is a saguaro cactus and under the cactus a coyote howls at the moon.
|
Had to see it lit |
After cutting the stars out of the top I wanted to get a feel for what the cap was going to look like so I brought the cap into my garage put a light under the cap and turned the lights out.
|
Fitting the top and the bottom |
The second tank cap I cleaned, as I did the first, and used my plasma cutter to cut a 3 inch diameter hole in the bottom (for venting) and welded legs to it. When the two pieces are put together they form a sphere standing on a tripod.
|
Burn Test |
After bottom had been completed my wife and I thought it would be fun to put a fire in the globe and sit out on our patio. The light from the globe casts a warm glow everywhere. (I haven't welded the top and bottom sections together at this point)
|
Painted |
To finish this project I sandblasted and the two halves of
the globe (inside and out) and painted the entire globe with a high
temperature, corrosion resistant paint. I did the entire globe with a flat
black and then decided that a semi-gloss would look better. After painting the
top with the semi-gloss I really liked the look of the two parts. The contrast
(flat black on the bottom and semi-gloss on top) gave it an interesting
appearance I thought I'd leave it that way. If I change my mind I can always
paint the bottom with the semi-gloss as well.
The globe has a "Fire Deck" inside it which is to
say there is a surface to build a fire on. This keeps the fire from sitting
right on the bottom of the globe. Together with the 3 inch hole in the bottom
this makes air flow in through the bottom and up and around the fire causing to
burn hot and efficiently.
The two halves of the globe are not welded together. Between
the two halves is a cooking surface. The globe is actually a BBQ grill! The top
half sits not on the bottom half but on the cooking surface. The top comes off
to use it as a grill and when you are finished grilling you can put the top on
(the top weighs about 50 lbs.) and have some food and drinks and sit around a
warm fire and enjoy conversation with friends.
This project was a lot of fun! I really enjoyed the process.
I learned so much about not only my tools but my abilities. I'm really looking
forward to my next project.