Archive for Sculpture

Another Rhinocerous and the form

Eben wanted to display his art work at a recent show in Burlington so decided to hammer out another Rhino. This time it took only a fraction of the time because the form in which it is hammered out on was sculpted and ready to go. To make the display at the show more dramatic, his wife painted the form orange to have hanging next to the completed copper sculpture.

In many areas on the finished piece, the copper has been stretched so much that it is thin as tissue paper, delicate enough to poke your finger through.

Rhino Mold painted in oil orange

Rhino Mold painted in oil orange

Rhinocerous in 1/1 scale

Rhinocerous in 1/1 scale

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It works!

The burning man Art Car works! My part of the development, the diesel engine, hydraulic pumps, motors and hoses actually made the thing self propelled and the carousel clockwork is smooth and silent. It would have been fun if it was noisy and scary but it moves with precision and ease!

The machine is in Nevada right now, hopefully it can be re-assembled after the breakdown to transport it 3000 miles.

Burning man complete

Burning man complete

Hydraulic/Diesel

Hydraulic/Diesel

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Homer’s Car

Here is a photo of Homer’s Ford Taurus Station wagon. It used to be his wifes car, now it is his to beat on!

Just dont get into a head on collision!

Ford Taurus Loaded up

Ford Taurus Loaded up

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Further Work on the Burning Man Art Car

Homer helped me finish up the disassemble of the Ford CL-35 Skid Steer Loader after work the other day and after a 6 pack of my favorite beer, Otter Creek Brewing Copper Ale, we yanked the hydraulic assembly out. I was not sure how to get these components out of the machine independently because you cannot get to the hose ends with a wrench so I decided to take the motors and the pump out as a unit.

We found that the RH drive sprocket had broken the key way on the motor and someone did a terrible job repairing the damage. They went through the effort to replace the key but did not tighten the large nut or the brake disc so to our advantage, that side came apart easily. The LH side was a different story. We grappled onto the 1-5/8 nut with a 3/4″ drive breaker bar and had to come up with a way to keep the motor from spinning. We could not do anything to keep the motor fixed so we let the compressor charge up the tank and used our biggest air-impact gun which got her loose. Next we had to remove the sprocket with our huge 3 jaw puller. We had tons of force on the puller and the sprocket would not budge. Now is time for the heat!

I managed to get the sprocket red hot and the puller maxed out and let me tell you, that sprocket popped like a canon when it let go. Thankfully it did not drop in the chain oil bath because it could have started a major fire.

The pump is EATON Cessna and the motors are EATON Char-Lyn. I have been looking up different hydraulic components and guess that EATON factories make the parts and the Char-Lyn is the town that the factory is in? Another EATON hydraulic division is Vickers, when I get a chance I want to look up the meaning of these names.

Ford CL-35 EATON Char-Lyn

Ford CL-35 EATON Components

Eaton Cessna and EATON Char-Lyn Hydraulics

Eaton Cessna and EATON Char-Lyn Hydraulics

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Moving along with Burning man

Homer is really closing in nicely on the burning man time machine art car, he has the clock like gearing nearly finished for the carousel and the 20′ tall wheels that  can be broken down for shipping to the event are outrageous. Ruby, Roman and I stopped by after a swim in the river to see the progress and were blown away by the size and strength of the wheels. David at Mainly Metals has a water jet cutter and is making all the gears so they can get just the right speed of the carousel, one turn to every 7 turns that the 20′ wheels turn.

I have volunteered to come up with the propulsion and was toying with having a diesel engine run a generator that would run electric motors but this seems a bit much for me. We settled on hydraulics to get her moving slowly in the desert and pawed through a number of catalogs to come up with the components necessary to get us rolling.

After looking at all of the components individually and seeing the huge variation of gallons per minute rates, pressure capebility and overall compatibility of hydraulic pumps to valve bodies to motors I had a great idea, cannibalize a skid steer loader! Someone else engineered the relationship of engine to pump to valve size to motors. Even the hose size and fluid reservoir are thought out for the flow and cooling capacity that we need.

Jeff used to work at our shop but now works closer to his home at a farm equipment sales and service place. I called him to find out where I could buy a cheap skid steer. He had me call Jon in Bridport and for under $3000 we had a operable machine that I began to disassemble right away. The 3 cylinder engine came out easily, in fact I slid it out of the machine and right onto the hydraulic lift table by myself. Now I have to find a way to remove the pump and hoses without having to undo all of the lines so the system stays clean and I can identify the scavenge side and the pressure side.

I am excited to work tomorrow to strip the motors for the wheel movement to see what we can use for the art car. With the chains and jack shafts that are in the drive housing maybe we need to do very little to hook the motors up to the wheels.

Burning man sculpture part

Burning man sculpture part

Here is Roman standing near the wheel

Here is Roman standing near the wheel

3 cylinder diesel engine

3 cylinder diesel engine

Hydraulic pump to be used in art car

Hydraulic pump to be used in art car

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PPG finish on the 212

Here are some cool photos of the Ferrari 212 with red oxide primer and going into the PPG DCC Concept single stage satin black. As you can see from the air in the paint room, there is quite a lot of over-spray in the air which is necessary to get the entire frame coated.

Red Oxide primer on Ferrari Chassis

Red Oxide primer on Ferrari Chassis

Ferrari Chassis in Red Oxide PPG Primer

Ferrari Chassis in Red Oxide PPG Primer

Primer and Satin Black paint on Ferrari Chassis

Primer and Satin Black paint on Ferrari Chassis

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Ferrari 212 chassis is nearly finished and painted

Here is a nice photo of the 212 chassis with a fresh coat of primer and paint. We used a red-oxide primer from PPG and a special satin black That I feel is the perfect gloss in PPG’s DCC Concept line, a single stage finish. The finish is DCC Concept line is Acrylic Urethane and it is so tough and goes on so easy that it seems impossible anything work and look so good.
When painting something like this with all the tubes and welded areas, the bulk of the chassis is over-sprayed. It is quite an exercise to get under, upside-down and all around to ensure a good coat on all of the tubing. It is nice to know that the chassis will be coated to be preserved for another 50 years or more.

PPG DCC Concept Acrylic Urethane Ferrari

PPG DCC Concept Acrylic Urethane Ferrari

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Ferrari 212 Nearer to Completion

Here is a photo of the body on the 212 on the chassis. Since this photo was taken we have dialed in the wheel openings so, when steered with the suspension compressed, the wheels will clear the bodywork. The shape of this car is very exciting, another example of how it is hard to argue with the creative styling of these cars.

Aluminum bodywork close to finished

Aluminum bodywork close to finished

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Washing the Ferrari 212 body

When gas welding aluminum a water soluble flux must be used to clean the surfaces and allow a nice flat and strong weld. We gas weld the sheet metal because the welds stay as flexible and supple as the surrounding material allowing you to roll the sheet metal and the welds through the English Wheel Dollies.

The problem is that if you do not get rid of all the flux residue, the aluminum will “salt away” under the paint and cause bubbling in the finish. In these photos we are using soap and water and brushes to ensure that there is no flux even in the deepest crevasses. Even a tiny amount in a pin hole will ruin a perfect paint job.

Ferrari 212 body washing off flux

Ferrari 212 body washing off flux

Removing flux from aluminum body

Removing flux from aluminum body

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1950 Ferrari 166 Sheet metal work





Here are some more images of sheet metal work to get the 1950 Ferrari 166 Touring Coupe closer to finished. So much of the aluminum is work hardened and cannot be repaired, so it has to be replaced.

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