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                 UNITED STATES                         SEC FILE NUMBER
      SECURITIES AND EXCHANGE COMMISSION                   0-27286
            WASHINGTON, D.C. 20549                 ------------------------
                  FORM 12B-25                            CUSIP NUMBER
                                                          423282102
                                                   ------------------------

                           NOTIFICATION OF LATE FILING

(CHECK ONE):  [X] FORM 10-K  [ ] FORM 20-F  [ ] FORM 11-K
              [ ] FORM 10-Q  [ ] FORM N-SAR

         FOR PERIOD ENDED: JULY 31, 1999
         [ ] TRANSITION REPORT ON FORM 10-K
         [ ] TRANSITION REPORT ON FORM 20-F
         [ ] TRANSITION REPORT ON FORM 11-K
         [ ] TRANSITION REPORT ON FORM 10-Q
         [ ] TRANSITION REPORT ON FORM N-SAR
         FOR THE TRANSITION PERIOD ENDED:


  READ INSTRUCTION (ON BACK PAGE) BEFORE PREPARING FORM. PLEASE PRINT OR TYPE.

    NOTHING IN THIS FORM SHALL BE CONSTRUED TO IMPLY THAT THE COMMISSION HAS
                   VERIFIED ANY INFORMATION CONTAINED HEREIN.

If the notification relates to a portion of the filing checked above, identify
the Item(s) to which the notification relates:


PART I - REGISTRANT INFORMATION

Helisys, Inc.
- --------------------------------------------------------------------------------
Full Name of Registrant

Former Name if Applicable
24015 Garnier Street
- --------------------------------------------------------------------------------
Address of Principal Executive Office (Street and number)

Torrance, California  90505
- --------------------------------------------------------------------------------
City, State and Zip Code

PART II - RULES 12B-25(b) AND (c)

         If the subject report could not be filed without unreasonable effort or
expense and the registrant seeks relief pursuant to Rule 12b-25(b), the
following should be completed. (Check box if appropriate)

                        (a)   The reasons described in reasonable detail in Part
                              III of this form could not be eliminated without
                              unreasonable effort or expense;

                        (b)   The subject annual report, semi-annual report,
                              transition report on Form 10-K, Form 20-K, 11-K,
                              Form N-SAR, or portion thereof, will be filed on
                              or before the fifteenth calendar day following the
                              prescribed due date; or the subject quarterly
                              report of transition report on Form 10-Q, or
                              portion thereof will be filed on or before the
                              fifth calendar day following the prescribed due
                              date; and

                        (c)   The accountant's statement or other exhibit
                              required by Rule 12b-25(c) has been attached, if
                              applicable.

PART III - NARRATIVE

         State below in reasonable detail the reasons why the Form 10-K, 11-K,
10-Q, N-SAR, or the transition report or portion thereof, could not be filed
within the prescribed time period. (ATTACH EXTRA SHEETS IF NEEDED.)

         The Annual Report on Form 10-KSB for the fiscal year ended July 31,
1999 could not be filed within the prescribed time period because of
Registrant's current financial condition and its inability to obtain audited
financial statements for the year ended July 31, 1999. The Registrant intends to
file its Annual Report on Form 10KSB for the fiscal year ended July 31, 1999 as
soon as possible.

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PART IV - OTHER INFORMATION


                                                                                 
(1)        Name and telephone number of person to contact in regard to this
           notification:
                                      E. Gilbert Leon, Jr.                                           310-891-0600
           --------------------------------------------------------------------------  -----------------------------------------
                                             (Name)                                         (Area Code + Telephone Number)
(2)        Have all other period reports required under Section 13 or 15(d) of
           the Securities Exchange Act of 1934 or Section 30 of the Investment
           Company Act of 1940 during the preceding 12 months (or for such shorter               [X] Yes           [ ] No
           period that the registrant was required to file such reports) been filed?
           If the answer is no, identify report(s).

           ---------------------------------------------------------------------------------------------------------------------
(3)        Is it  anticipated  that any  significant  change in results of operations
           from the corresponding period for the last fiscal year will be
           reflected by the earnings statements to be included in the subject                    [ ] Yes           [X] No
           report or portion thereof:
           If so, attach an explanation of the anticipated change, both
           narratively and quantitatively, and, if appropriate, state the reasons
           why a reasonable estimate of the results cannot be made.


Helisys, Inc.
- --------------------------------------------------------------------------------------------------------------------------------
                                       (Name of Registrant as Specified in Charter)
         has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.


Date:     October 29, 1999                                        By:    /s/ E. Gilbert Leon, Jr.
          ------------------------------------------------------         -------------------------------------------------------
                                                                         E. Gilbert Leon, Jr., Vice President, Finance and
                                                                         Administration

         INSTRUCTION: The form may be signed by an executive officer of the registrant or by any other duly authorized
representative. The name and title of the person signing the form shall be typed or printed beneath the signature. If the
statement is signed on behalf of the registrant by an authorized representative (other than an executive officer), evidence
of the representative's authority to sign on behalf of the registrant shall be filed with the form.


                                   ATTENTION

INTENTIONAL MISSTATEMENTS OR OMISSIONS OF FACT CONSTITUTE FEDERAL CRIMINAL
VIOLATIONS (SEE 18 U.S.C. 1001).

                              GENERAL INSTRUCTIONS

1.       This form is required by Rule 12b-25 (17 CFR 240.12b-25) of the
         General Rules and Regulations under the Securities Exchange Act of
         1934.

2.       One signed original and four conformed copies of this form and
         amendments thereto must be completed and filed with the Securities and
         Exchange Commission, Washington, D.C. 20549, in accordance with Rule
         0-3 of the General Rules and Regulations under the Act. The information
         contained in or filed with the form will be made a matter of public
         record in the Commission Files.

3.       A manually signed copy of the form and amendments thereto shall be
         filed with each national securities exchange on which any class of
         securities of the registrant is registered.

4.       Amendments to the notifications must also be filed on Form 12b-25 but
         need not restate information that has been correctly furnished. The
         form shall be clearly identified as an amended notification.

5.       Electronic Filers. This form shall not be used by electronic filers
         unable to timely file a report solely due to electronic difficulties.
         Filers unable to submit a report within the time period prescribed due
         to difficulties in electronic filing should comply with either Rule 201
         or Rule 202 of Regulation S-T or apply for an adjustment in filing date
         pursuant to Rule 13(b) of Regulation S-T.


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