RE: Starting a reverse engineering laboratory.

From: Henry Sommer (
Date: Thu Aug 07 2003 - 06:21:35 EEST

            A standard CMM is a good idea. I included the Faro because it
was such a compliment to the noncontact scanners. The students should learn
to choose the right equipment for the job. Along those line I would look for
one of the CMMs that have video and contact capability. That way they learn
the limits and strengths of each method. You will need to think about what
size parts you want to scan. You might use a different scanner for cell
phone housing and a car.

There should also a complete selection of simple manual tools like height
gauges and micrometers.

            The classes should certainly be divided into sections on
metrology, scanner principles of operation, data (point cloud) analysis, and
geometry creation.

            You will eventually want equipment such as RP or CNC machines to
reproduce the models made through reverse engineering.

Henry Sommer

-----Original Message-----
From: []On Behalf Of
Lamar Davidge
Sent: Wednesday, August 06, 2003 5:51 PM
Subject: RE: Starting a reverse engineering laboratory.

I would also suggest a standard CMM, but make sure it is a new one. This
would allow you to understand how to program these machines. Standard CMM's
are still the workhorse machine for high precision gaging, and reverse
engineering work. The aerospace world is a big user of CMM's.

I have used the Faro Arm, and it is a good tool, but it has its limitations,
and advantages. It is best used for medium precision work +-.002" It is also
good at measuring very large parts, there is really no limit to the size of
a part than can be measured with it.


-------Original Message-------

From: Craig Dechtenberg <>
Date: Wednesday, August 06, 2003 2:30:22 PM
To: 'Henry Sommer' <> ; <> ; <>
Subject: RE: Starting a reverse engineering laboratory.

Those are good suggestions for reverse engineering tools. I would like
to add, with regard to the laser scanners, that you might want to
consider the laser scanners from Laser Design, Inc. They are very high
accuracy (up to +/-.001"), and can accomodate a wide range of part
sizes. Their portable systems are the smallest and lightest weight
(only 5 lbs!) - which makes them not only very portable, but also easy
to work with in regard to mounting and orientation. (uses only a
lightweight folding tripod).

Not to mention they are also less expensive. You can find more info at <> . (click on "Products" then

Craig Dechtenberg

-----Original Message-----
From: <> [] On
Behalf Of Henry Sommer
Sent: Tuesday, August 05, 2003 7:57 PM
To:; <;> <>
Cc: rp mail list
Subject: RE: Starting a reverse engineering laboratory.


Here is what I would put in the lab.

Try and get one of each of these donated.
Contact portable CMM like a Faro or Romer arm
Noncontact point cloud scanner like a Minolta or an Atos. If you have to
by it get a Minolta they are less expensive.

A standard cad package like Pro/E, Solidworks etc.
Try and get as many different kinds of reverse engineering software
donated as possible. Some of the choices are. Imageware, Raindrop
Geomagic, Paraform, and GSI studio. There are many others. Each one is
very different from the others. So you should try and get exposure to as
many of them as you can.

Henry Sommer

-----Original Message-----
From: <> []On
Behalf Of <>
Sent: Tuesday, August 05, 2003 8:05 AM
To: <>
Cc: rp mail list
Subject: Starting a reverse engineering laboratory.

Hello Group,

I am C.V.Ramachandran, a final year mechanical engineering student from
BITS,Pilani,India.This is my first mail to the group.

Our institute is interested in starting a reverse engineering laboratory
as well as a course on the same.I am therefore in search of the
following info.

1.Details of similar work done in India and else where.
2.A good book on the subject.
3.What are the most basic equipment required and their cost.

Kindly send me whatever info possible.

Thanx a million.


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