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By Jim Logan
When finished, the FedEx building at the sprawling Dominguez
Tech Center in Carson, CA, will require more than 1 million
square feet of grading. And with 750,000 square feet of slabs
and parking lots, the grading has to be precise; even a tiny
error could cost the concrete contractor thousands of dollars.
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Photo: Jim Logan |
| Jim Smith of Calco Grading sets a SiteShape control unit on his motor grader. |
So when KCB Builders,
a concrete contractor based in Long Beach, CA, needed a grader,
it turned to Jim Smith, owner of Calco Grading Inc. Like KCB,
Smith uses the 3D Profiler System from Somero Enterprises
that uses a geodimeter and sophisticated software to quickly
create a 3D map of a job site. They wont let another
blade on the job, says Smith, whose company is based
in Bellflower, CA. If it does not have 3D it does not
come on the job.
Smiths 3D
system is part of SiteShape, Someros new package of
technologies that allows a contractor to quickly profile a
site, create a 3D map of the area, and then control a grader
with fine precision.
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Photo: Jim Logan |
| Smith sets up the SiteShape geodimeter in preparation for profiling a job site. |
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Photo: Jim Logan |
| Smith uses a prism and a laptop to set nodes for the software that will create a 3D map. |
The reason for
KCBs pickiness is simple, says Troy Blankenship, a superintendent
with the company. In an industry where time is money, SiteShape
saves both. He can take a profile of exactly what Im
doing and boom, we get it done, Blankenship says. It
saves a ton of labor and a ton of time.
On a warm winter
day between rains, Smith was preparing to grade an area of
about 100,000 square feet. Using SiteShape and his John Deere
772CH motor grader, he says hell do the jobincluding
creating a 3D map (called a profile) and gradingin a
day. And hell do it alone.
For Smith, thats
the real value of SiteShape: it allows him to do jobs quickly
and without employees. He can survey the site in about an
hour, download the information to a ruggedized laptop, and
be grading in minutes.
I dont
have to have a CAD expert on the payroll and have him work
till midnight to get me a profile made, he says. I
just come out here myself, and I can actually turn this into
a one-man operation. I can actually come out here, set my
points that I need, retrieve them with a geodimeter and a
laptop, make my surfaces, put it in the blade, and start grading
with no help from anybody else.
The way we
used to do it before, Smith notes, we would have
a grader operator
wed have the operator, and
three guys out here setting intermediate hubs on 30-foot grids,
which is very time-consuming. When you look at the size of
this job site, you say, That is a lot of hubs,
and it is. It would probably take a three-man crew all day
long to hub this 100,000-square-foot piece.
The FedEx project
began in July 2004, but heavy rains have wreaked havoc on
every contractors schedule, including Smiths.
Still, hes managed to grade around 750,000 square feet,
with about 150,000 square feet remaining. On that dry day
in February he demonstrated how hes able to work so
quickly.
The first step
was a site survey. On a tall tripod he set up a geodimeter,
a robotic Trimble Total Station that Somero calls an Automatic
Tracking System (ATS). The geodimeter is the key to mapping
a job. Once set up, Smith, carrying a laptop in a harness
and a 360-degree prism that acts as a target for the geodimeter,
creates nodes or hubs in key spots for his grid. A radio hanging
from his belt receives measurements from the geodimeter and
sends those to the laptop.
After hes
created enough nodesthe number necessary depends on
the size and geometry of the sitehe creates a color-coded
profile using Someros Profile Maker software on a Windows-based
laptop. The profile can be done in as little as 10 minutes.
From there all thats needed is to put the laptop in
the cab and start grading. The computer calculates the location
of the blade based on the grid and raises or lowers it as
required. Somero says SiteShape will provide accuracy down
to an eighth of an inch.
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Photo: Jim Logan |
| Smith has his SiteShape attached to a John Deere 772CH motor grader his only machine. |
I can get
it within an eighth of inch, Smith says, but it
takes a little time and practice to do that. If you go through
here in first gear, you watch your machine and see how its
working, and dont push it, you can get unbelievable
tolerances. The nice thing about that is
that machine
never has to stop and wait. It never has to stop and wait
for a hub to get put in; it never has to stop and wait for
a hub to get uncovered or a feather to be replaced. You are
constantly on grade. Its very fast, very efficient.
Weve doubled our square footage per day in every case.
For Smith, who
actually persuaded Somero to apply SiteShape to graders after
seeing it in action on a laser screed two years ago, the technology
has completely transformed his business. He has no employees
other than a secretary and just one grader.
As far as
Im concerned its the greatest tool thats
come along for the grading contractor since they invented
the tractor, he says. Its the greatest thing
Ive seen. Its allowing me to do things now that
I would never have been able to do without that.
Smith, who concedes
hes no technophile, has managed to adapt the system
so that he can cut curb grade. It really wasnt
made to do that, he says, but I figured out a
way to kind of dummy up the profile to where I can go in and
cut curb grade, which eliminates one person going in front
of me checking grade, or going behind me. And thats
a very slow process. With SiteShape doing my curb grades for
me now I dont need that guy, so when Im roughing
that out I can do it in second or third gear. And then I put
it in first gear and boom, I never have to stop for anything.
That gives you total production. It gives 60 minutes of production
out of your machine every hour.
If Smith sounds
like something of an evangelist for SiteShape, he can be excused.
He says its given him a big edge in a highly competitive
market. With no employees and just the one machine, his overhead
is minimal and the headaches that come from having employees
are but a memory. Its also allowed him to be selective
in the jobs he takes.
Whats
an advantage for me is if Ive got 10, 15, 20 people
working for me Ive got to make sure theyre working
every day, he says. In California its incredibly
hard to get good people, so if youre not working them
every day theyre gonna go to a company that is. So it
gives me the luxury, being a small contractor, that I can
take the work as I need it instead of making sure that I get
a whole bunch of it lined up. When youre in a situation
like that, sometimes youre taking jobs you really dont
want to take just to keep the people going. I take the jobs
that I like, the ones I can handle and the ones that are tailor-made
perfectly for my situation.
Smith predicts
that SiteShape, which was rolled out officially only recently,
will eventually be used by as much as 50% of grading contractors
within five years. The reason is simple economics. SiteShape
has given me the advantage to go after bigger jobs like this,
and being able to bid competitively against the people that
have more employees, he says. Those without it, he reasons,
will be forced to catch up.
It wont happen
overnight for a couple of reasons. One, a full system runs
about $100,000. Its a large investment, especially
for a small company like me, Smith concedes. Ive
got a $100,000 attachment on a blade thats worth $120,000.
When you start talking about $100,000, its like, Whoa,
whoa, whoa. I was that way too, but Id just sold
a bunch of equipment and I needed a tax break, so it wasnt
that hard for me.
The other reason
is subtler: resistance to change. The dirt-moving business,
though filled with sophisticated machines, hasnt exactly
rushed to embrace high technology. Thats partly because,
Smith reasons, the majority of owner/operators are middle-aged
men with no great love of or familiarity with computers.
Im
not what youd call computer literate, he says,
and I dont care to be. Now, you take these old
foremen, these old operators out in the field, and you stick
a computer in their face theyre not gonna have any part
of it. For one thing, they dont want to admit how dumb
we are because we dont know anything about them. And
we dont want to learn. Younger operators, on the
other hand, take to the system with ease, he says. I
can take any one of these 25-, 30-year-old kids out here and
I can introduce them to SiteShape and give them a couple of
days training and theyll pick it up so quick theyll
be off and running.
Smith, who is in
his 50s, insists the technology is not that difficult to learn.
Indeed, the process of setting nodes and creating a profile
appears relatively straightforward. Anybody who can send e-mail
and surf the Web likely has the skills to use SiteShapeeven,
he says, a guy my age. After you get past the part where
it overwhelms you, its basically simple. Its common
sense; its things you understand. You just do what the
program likes to do.
TR Kunesh, Someros
director of marketing, says the company is stressing the bottom
line to contractors. The early adopters are going to
make a lot of money on this, he says. Thats
our first target. Our second target are guys like Jim there,
small owner/operators out there doing this work (who) dont
want to hire a crew
dont want that overhead on
their back. They want to run it on their own and make money.
And thats
exactly what Smith has done, Since having SiteShape installed,
he says, hes graded about 10 million square feet. The
moneys good, but he wouldnt mind a break. It
gets to be a problem; last year it about killed me,
he says. I was working Saturdays, I worked Sundays,
long days just trying to keep everybody happy.
What I really
need
is to have another small contractor like myself
step up and buy a system so he can help me out.
Jim Logan is
the staff writer for Forester Communications
GEC
- March/April 2005
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