8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of
the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): August 4, 2004

GSI LUMONICS INC.

(Exact name of registrant as specified in its charter)

New Brunswick, Canada
(State or other jurisdiction of incorporation)

000-25705	98-0110412
(Commission File Number)	(I.R.S. Employer Identification No.)

39 Manning Road, Billerica, Massachusetts 01821
(Address of principal executive offices, including zip code)

(978) 439-5511
(Registrant’s telephone number, including area code)

TABLE OF CONTENTS

	ITEM 9. REGULATION FD DISCLOSURE.
	ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS.
SIGNATURE
EXHIBIT INDEX
EX-99.1 Investor Presentation

ITEM 9. REGULATION FD DISCLOSURE.

     On August 4, 2004, GSI Lumonics Inc. (the Company) posted to the “Investor News” section of its Internet website (accessible at http://www.gsilumonics.com/investors/) an updated investor presentation (slideshow) in Microsoft® PowerPoint® format. Additionally, beginning on August 4, 2004, officers of the Company will deliver to selected investors and analysts a series of presentations that will include written communication (comprised of this slideshow) which will be disseminated and provided in both written and oral form to the participants. The content of the slideshow is described and furnished as Exhibit 99.1 to this Report on Form 8-K pursuant to Regulation FD and incorporated herein by reference.

ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS.

(a)	Financial Statements of Businesses Acquired.
	Not required.
(b)	Pro Forma Financial Information.
	Not required.
(c)	Exhibits.

99.1 Investor Presentation (written communication comprised of a slideshow posted to the Registrant’s Internet website and to be shown during a series of investor and analysts presentations beginning on August 4, 2004, and furnished pursuant to Item 9 of this Report on Form 8-K).

SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		GSI LUMONICS INC.
		(Registrant)
Date: August 4, 2004	By:	/s/ Thomas R. Swain
		Thomas R. Swain Vice President, Finance and Chief Financial Officer

EXHIBIT INDEX

Exhibit No.	Description
99.1	Investor Presentation (written communication comprised of a slideshow posted to the Registrant’s Internet website and to be shown during a series of investor and analyst presentations beginning on August 4, 2004, and furnished pursuant to Item 9 of this Report on Form 8-K).

EX-99.1

Safe Harbor Certain statements in this presentation may constitute forward-looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995, Section 27A of the United States Securities Act of 1933 and Section 21E of the United States Securities Exchange Act of 1934. These forward-looking statements may relate to anticipated financial performance, management's plans and objectives for future operations, business prospects, outcome of regulatory proceedings, market conditions, tax issues and other matters. All statements contained in this news release that do not relate to matters of historical fact should be considered forward-looking statements, and are generally identified by words such as "anticipate," "believe," "estimate," "expect," "intend," "plan," "objective" and other similar expressions. Readers should not place undue reliance on the forward-looking statements contained in this news release. Such statements are based on management's beliefs and assumptions and on information currently available to management and are subject to risks, uncertainties and changes in condition, significance, value and effect. Other risks include the fact that the Company's sales have been and are expected to continue to be dependent upon customer capital equipment expenditures, which are, in turn, affected by business cycles in the markets served by those customers. Other factors include volatility in the semiconductor industry, the risk of order delays and cancellations, the risk of delays by customers in introducing their new products and market acceptance of products incorporating subsystems supplied by the Company, similar risks to the Company of delays in its new products, our ability to continue to reduce costs and capital expenditures, our ability to focus R&D investment and integrate acquisitions and other risks detailed in reports and documents filed by the Company with the United States Securities and Exchange Commission and with securities regulatory authorities in Canada. Such risks, uncertainties and changes in condition, significance, value and effect, many of which are beyond the Company's control, could cause the Company's actual results and other future events to differ materially from those anticipated. The Company does not, however, assume any obligation to update these forward-looking statements to reflect actual results, changes in assumptions or changes in other factors affecting such forward-looking statements.

Enabling technologies Strong balance sheet Growth

Business Segments % of Revenue Q2 2004* *Exceeds 100%, as this includes sales between segments, which is 7% of total sales Q2.

Global Sales % of Revenue Q2 2004

Market Segments % of Revenue Q2 2004* * management's estimate

Major Customers - Q2

Growth Strategy Develop new products for niche markets Acquire enabling technology Create product technology synergies

Acquisition Strategy Enabling technologies Complementary products Use of cash Accretive Track record DRC (2003) Spectron (2003) Westwind Air Bearings (2003) MicroE (2004)

Westwind Rotary motion Cash purchase - $35 million Accretive in Q1'04 Sales in 2003 - $30 million Leading supplier PCB drilling spindles Future growth opportunities: data storage industrial printing

MicroE Motion control Cash purchase - $55 million Accretive Q2'04 Sales in Q1'04 - $7.7 million Leader in data storage Future growth opportunities: robotics medical industrial

Precision Components Technology Scanners Encoders Optics Rotary Motion Light Industrial l l l Electronics & Semiconductor l l l l Medical Equipment l l l Other l l l l Market

Precision Components Sales (US$ Millions)* * These sales include sales between segments.

Lasers Technology YAG DPSS CO2 YLF Excimer Light Industrial l l l l Electronics & Components l l l Medical Equipment l l Other l l l l l Market

Lasers Sales (US$ Millions)* * These sales include sales between segments.

Systems Technology Memory Repair Wafer Trimming Wafer Marking CSP Marking Circuit Trimming PCB Inspection Semiconductor l l l l Electronics l l Market

Systems Sales (US$ Millions)

Revenue & Earnings Trends Revenues (US$ Millions) Earnings (US$ Millions)

Bookings & Backlog (US$ Millions) Bookings* Backlog** * This includes Westwind in Q4 '03 and MicroE in Q2 '04. * * This includes MicroE

Business Situation Global macro-economic strength Semi-Electronics recovery solid Medical equipment sales firm Industrial sectors recovering

Semi-Electronic Market Drivers Notebook pc's Mobile phones PDA's Digital cameras Wireless tools & equipment Flat panel displays

Selected Balance Sheet* Cash & Investments $72.1 Total Assets $357.5 NBV $285.1 *All values in $US millions actual as of July 2, 2004

Targeted Business Model Q2 2004 Target Revenues Gross margin Engineering SG & A expenses Amortization Other Operating profit 100 % 100 % 42 % 45 % 7.1 % 9 % 17.1 % 17 % 1.4 % 2 % 15.9 % 17 % 0.5 % 0 %

GSI Lumonics - In Review Position: New products Excellent market relationships Strong balance sheet - no debt Growth: Business recovery Acquire technologies Expand market niches