2A83C-BZQ6RGFD200

GlowforgeGFD200 UserManual FORCERTIFICATIONSSUBMITTAL -WORKINGDRAFT SUBJECTTOCHANGE April19,2023 Safety First,it’stimetogetserious.ImproperlyoperatingtheGlowforgeunitcan causefire,eyeorskininjuryfromlaserexposure,orexposuretochemicals thatmaybehealthhazards.Thesecanresultinseriousinjuryorevendeath . Beforeyoustart ● ReadthismanualbeforeusingyourGlowforgeunit,andensureeveryone elsewhousesitreadsthistoo. ● AlwaysfollowallinstructionsinthissectionandintheGlowforgeApp. ● Childrenrequirethesupervisionandassistanceofanadultatalltimes. ● DonotuseyourGlowforgeunitwhileundertheinfluenceofalcoholor drugs. ● Lasersaresubjecttoregulationsandstandards,particularlywheninstalled inaneducationalinstitutionorplaceofwork.Ensurethatyoucomplywithall applicablerules. ● DonottouchtheheadorarmoftheGlowforgeunitwhilethepowerison.If youdosobyaccident,turnitoff,thenbackonagaintopreventthepossibility ofdamage. ● Underrarecircumstances,materialsorcomponentsinsideyourGlowforge unitmaybecomehotduringprinting.Usecautionbeforetouchingsurfaces insidetheprinter. ElectricalSafety Toreducetheriskofelectricshockorfire: ● Donottrytoservice,repair,ormodifytheGlowforgeunit. ● NevertrytoaccessthewiringoftheGlowforgeunit. ● DonotopenthepowersupplyoranysealedportionoftheGlowforge unit. ● IftheGlowforgeunitisdamaged,unplugthepowercordandcontact [email protected]. FORCERTIFICATIONSSUBMITTAL WORKINGDRAFT-SUBJECTTOCHANGE -2- Version:April19,2023 ● Intheeventofanyemergencyormalfunction,unplugthepowercord onthebackoftheunit. ● Useonlyaproperlygroundedoutletthatmeetslocalbuildingcodesandhas atleast300wattsofpoweravailable. ● Thepowercordisintendedtoserveasthedisconnectdevice.Makesurethe outletisneartheequipmentandeasilyaccessible,soyoucanunplugtheunit ifneeded. ● Theminimumratingofthecircuitbreaker,alsoknownasanover-current protectivedevice,onthiscircuitfeedingtheoutletshouldbeatleast5amps. FireSafety TheGlowforgeunit’slasercutsandengraveswithabeamof high-intensityvisiblelight.Thelasercangenerateextremelyhigh temperaturesinthematerialbeingcutorengraved.Undersome circumstances,itispossibleforthematerialinsidetheGlowforgeunitto igniteandfortheflametospreadoutsideoftheareabeingcutor engraved.Ifignited,theflamecoulddestroyyourunitandspread, potentiallysettingfiretothebuilding. FireRisk ● DonotputanythinginsidetheGlowforgeunitthatisnot laser-compatible,evenifyoudonotintendtocutorengraveit.Learn moreaboutlaser-compatiblematerialsbelow. ●Donotstackmaterials;forexampleattemptingtocuttwoormore sheetsofmaterialatatime.Multiplesheetsaremorelikelytoburn. ● CleanoutleftoverbitsinsidetheGlowforgeunitwhenitbuildsup.(See “Cleaning”) ● DonotplaceanythingontopoftheGlowforgeunit.Donotstorethings thatcancatchfireaboveit. ● Donotstoresourcesofflammablevaporslikeoil-basedpaint,acetone, gasoline,oralcoholinthesameroomasyourGlowforgeunit.Flammable vaporscouldbeignitedduringoperation. ● Whenaprintiscomplete,certainmaterials,likeplastics,canremainhot. Allowthemtocooldownbeforeyoutouchthem. FORCERTIFICATIONSSUBMITTAL WORKINGDRAFT-SUBJECTTOCHANGE -3- Version:April19,2023 Keepwatchduringoperation ● NeverleavetheGlowforgeunitunattendedwhileoperating–eitherwhen it’spausedandreadytoprint(withthebuttonflashing)orwhileit’sactually printing(withthebuttonon).Alwaysstaywithinsightandlookinside frequently. ● Asmall,candle-likeflamewherethelaserbeamstrikesthematerialis normal.Thisflameshouldmovewiththelaserandshouldnotremainlit whenthelaserhasmovedpast. ● IfthereisalastingflameinsidetheGlowforgeunitthatdoesnotextinguish whenthelaserhasmovedpast: 1.Pulltheplugonthebackoftheunit. 2.Ifitissafetodoso,extinguishthefirewithawettowel. NotethatwatermaydamageyourGlowforge. 3.Ifthatisnotanoption,thenifitissafetodoso,extinguish thefirewithafireextinguisher.Notethatfireextinguishers maycausedamagetoyourGlowforge. 4.Ifthefirecannotbesafelyextinguishedorifitspreads outsidetheGlowforgeunit,callyourlocalemergency number(forexample911)andevacuatethebuilding. 5.Donotoperatetheunitfurtheruntilyouhavecontacted [email protected] LaserSafetyforallGlowforgePrinters (exceptwherenoted) LaserProducts TheGlowforgeGFD2003DLaserPrinteriscertifiedasaClass1laser productcontaininganembeddedClass4laser.Theembeddedlaseremits enoughvisiblelightenergytocauseinstantinjurytotheskinandeyeif directlyexposed,orstartafirewhenexposedtoflammablematerials.The GlowforgeGFD200providesanengineeredprotectivehousingwhichblock FORCERTIFICATIONSSUBMITTAL WORKINGDRAFT-SUBJECTTOCHANGE -4- Version:April19,2023 harmfullevelsoflaserlight,allowingyoutosafelyutilizethisversatiletool. CAUTION!Useofcontrolsoradjustmentsorperformanceofprocedures otherthanthosespecifiedhereinmayresultinhazardousradiation exposure. Donotuseifcaseisdamagedormodified. Anydamageormodificationscouldallowdangerouscontactwithmoving and/orelectricalparts,and/orallowvisibleandultravioletlight,heat,smoke, andfumestoescape. Safetyinterlockswitchesonthelidturnoffthelaserimmediatelyifthelid isopened.Donotplacemagnetsnearthelidordoorsastheycan interferewiththeswitches.Donottrytodefeattheswitches. Donotmodifyorservice. CAUTION!AttemptingtomodifyorservicetheGlowforgeunitmay resultinhazardouslaserlightexposure. Toreducetheriskofinjury: ●Donotattemptservice.Allservicemustbeperformedonlybythe Glowforgefactoryorbyfactory-authorizedtechnicians. ● Donotattempttoalterormodifytheunit. ●Onlyusethetoplidtoopenthecase.Donottrytoopenthecaseanyother way,suchasbydrillingholes,removingfasteners,orremovingcoverings. ● DonottrytodisassembleoropensealedportionsoftheGlowforgeunit, includinganyprotectivecoveringsorhousings. ● Ifthecrumbtrayisremoved,useextremecautiontoensurethatthelaser onlystrikeslaser-compatiblematerial,anddoesnottouchthemetalbottom oftheunitwhichcouldcauseareflectionanddamagetheunit. AdditionalLaserSafetyInformation FORCERTIFICATIONSSUBMITTAL WORKINGDRAFT-SUBJECTTOCHANGE -5- Version:April19,2023 TheGlowforgeAura(ModelNumberGFD200)isaClass1laserproduct asdefinedinInternationalStandardIEC60825-1. TheAuracontainsaClass4em…

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1938 Occidental Ave South, Suite C, Seattle, WA 98134 TO:Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046 February 20, 2023 Re:Section 2.911(d)(7) filing To whom it may concern, This letter is to confirm that Megan Lutes, General Counsel of Glowforge Inc., has accepted responsibility to act as the agent for service of process as acknowledged by Nick Woolger on behalf of applicant Glowforge Inc. U.S. A gent: Megan Lutes Title: General Counsel Company Name: Glowfor ge Inc. Address: 1938 Occidental Ave South, Suite C, Seattle WA 98134 Tele phone No:(855) 569-4878 Email: le [email protected] The applicant accepts and acknowledges the obligation to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Si gnature of Applicant: Signature of U.S. Agent (if different from a pplicant): Name:Nick Woolger, for applicant Glowfor ge Inc. Name:Megan Lutes, General Counsel of Glowfor ge Inc. Date:Date: 02 / 21 / 2023 02 / 20 / 2023 Doc ID: ea68a9e9607bea88ce5eb9a114f709fe3ee316d9 Glowforge FRN: 0033007691 The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC. GFD Support Work: FCC-US Agent Attestation Letter -... FCC-US Agent Atte...orge Inc.docx.pdf ea68a9e9607bea88ce5eb9a114f709fe3ee316d9 MM / DD / YYYY Signed 02 / 20 / 2023 21:39:44 UTC Sent for signature to Megan Lutes ([email protected]) and Nick Woolger ([email protected]) from [email protected] IP: 73.42.239.38 02 / 21 / 2023 01:27:20 UTC Viewed by Nick Woolger ([email protected]) IP: 73.169.166.146 02 / 21 / 2023 01:27:36 UTC Signed by Nick Woolger ([email protected]) IP: 73.169.166.146 02 / 21 / 2023 18:57:40 UTC Viewed by Megan Lutes ([email protected]) IP: 73.254.72.184 02 / 21 / 2023 18:58:38 UTC Signed by Megan Lutes ([email protected]) IP: 73.254.72.184 The document has been completed. 02 / 21 / 2023 18:58:38 UTC Note: Glowforge FRN number added to page 1 of doc on 03/28/2023.

1938 Occidental Ave South, Suite C, Seattle, WA 98134 Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 February 8, 2023 Re: Attestation regarding ‘covered’ equipment and the Covered List FCC ID: 2A83C-BZQ6R To Whom It May Concern: Per 2.911(d)(5)(i), Glowforge Inc. certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Per 2.911(d)(5)(ii), Glowforge Inc. certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, __________________________________________________ Nick Woolger, Principal Electrical Engineer Glowforge Inc. Doc ID: 07193b6b3befb34b707f2e8ede8237ab50b4de8e GFD200-FCC-Attestation Statement.docx GFD200-FCC-Attest...tatement.docx.pdf 07193b6b3befb34b707f2e8ede8237ab50b4de8e MM / DD / YYYY Signed 02 / 13 / 2023 23:22:49 UTC Sent for signature to Nick Woolger ([email protected]) from [email protected] IP: 73.42.239.38 02 / 14 / 2023 00:06:20 UTC Viewed by Nick Woolger ([email protected]) IP: 73.169.166.146 02 / 14 / 2023 00:07:08 UTC Signed by Nick Woolger ([email protected]) IP: 73.169.166.146 The document has been completed. 02 / 14 / 2023 00:07:08 UTC

1938 Occidental Ave South, Suite C, Seattle, WA 98134 Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 January 30, 2023 Re: Original Equipment Authorization Submission Product name: GFD200 with FCC ID 2A83C-BZQ6R To Whom It May Concern: The GFD200 is a desktop 3D laser printer containing a single chip combination WiFi/Bluetooth radio. The GFD200 has been tested in 802.11b/g/n, Bluetooth Classic and Bluetooth Low Energy modes. The included documents show that the GFD200 conforms to the requirements of FCC Title 47 part 15.247 for operation in the 2.4GHz band. Please contact me if there is any information you may need ([email protected]). Sincerely, __________________________________________________ Nick Woolger, Principal Electrical Engineer Doc ID: b6ddd429e79e4d91626cc4a771a8582a9d9c359d GFD200-FCC-Application Coverletter.docx GFD200-FCC-Applic...erletter.docx.pdf b6ddd429e79e4d91626cc4a771a8582a9d9c359d MM / DD / YYYY Signed 01 / 31 / 2023 16:49:36 UTC Sent for signature to Nick Woolger ([email protected]) from [email protected] IP: 73.42.239.38 01 / 31 / 2023 21:27:43 UTC Viewed by Nick Woolger ([email protected]) IP: 73.169.166.146 01 / 31 / 2023 21:27:58 UTC Signed by Nick Woolger ([email protected]) IP: 73.169.166.146 The document has been completed. 01 / 31 / 2023 21:27:58 UTC

1938 Occidental Ave South, Suite C, Seattle, WA 98134 Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 April 19, 2023 Re: Confidentiality request for: Product name: GFD200 with FCC ID 2A83C-BZQ6R To Whom It May Concern: This letter serves as an official request for permanent confidentiality under FCC Rule, 47 CFR Part 0, Subpart C (per §§ 0.457(d) and 0.459). We have requested that the following attachments: Schematics, Block diagrams, Operational descriptions and Parts lists required to be submitted with this application are to be withheld from public review. In addition, have requested that the following attachments: Internal photos (excepting those included in the Antenna Specification Declaration), User’s manual, External photos and Test setup photos required to be submitted with this application is to be withheld from public review until short term confidentiality release date at: 180 days from the FCC certification grant date, or October 16th, 2023, whichever is later. These documents contain detailed system and equipment description and related information about the product which Glowforge Inc. considers being proprietary, confidential and a custom design and otherwise would not release to the general public. Since the design is a basis from which future technological products will evolve, Glowforge Inc. considers that this information would be of benefit to its competitors and that the disclosure of the information in these documents would give competitors an unfair advantage in the market. Sincerely, __________________________________________________ Nick Woolger, Principal Electrical Engineer Glowforge Inc. Doc ID: c5b204fb21ee90e9ec907e2dd4d40c1e8c6f3742 GFD200-FCC-Request for Confidentiality 04192023 GFD200-FCC-Reques...ty_Rev02.docx.pdf c5b204fb21ee90e9ec907e2dd4d40c1e8c6f3742 MM / DD / YYYY Signed 04 / 20 / 2023 01:11:48 UTC Sent for signature to Nick Woolger ([email protected]) from [email protected] IP: 76.34.211.123 04 / 20 / 2023 04:54:32 UTC Viewed by Nick Woolger ([email protected]) IP: 75.172.67.208 04 / 20 / 2023 05:12:27 UTC Signed by Nick Woolger ([email protected]) IP: 75.172.67.208 The document has been completed. 04 / 20 / 2023 05:12:27 UTC

GFD200 – External Photos for FCC Certifications N.Woolger 2-7-2023 Figure 1: GFD200 – Top view. Figure 2: GFD200 – Front view. Figure 3:GFD200 – Left view. Figure 4: GFD200 –Right view. Figure 5: GFD200 – Rear view. Figure 6:GFD200 – Bottom view.

Label and Location (FCC ID) Exhibit Glowforge Aura – GFD200 - 2/13/2023 To ensure that the label (GF-HWA-01709) containing FCC identifier is permanently affixed to the equipment enclosure for the lifetime of the equipment per FCC CFR Title 47 Part 2.925(d) and (d)(1). The label material and adhesive used shall be recognized to UL 969. The printer and printing technique used to mark the label (GF-HWA-01709) shall be recognized with UL 969. Figure 1: Label location on rear of GFD-200 equipment enclosure. Figure 2: Label Content.

GFD200 – Internal Photos for FCC Certifications N.Woolger 3-1-2023 Figure 1: Internal Layout of Unit. Figure 2: Unit Power Supply Figure 3: Control board as mounted in unit. Figure 4: Inside of unit with Head and Lid PCBA Locations. Figure 5: GF-PCA-00155- Control PCBA Top Side with EMI Shield Installed. Figure 6: GF-PCA-00155- Control PCBA Top Side with EMI Shield uninstalled. Figure 7: Radio Detail under EMI Shield Figure 8: RF Antenna detail. Figure 9: GF-PCA-00155- Bottom Side Control PCBA. Figure 10:GF-PCA-00154- Lid PCBA Top. Figure 11: GF-PCA-00154- Lid PCBA-Bottom Figure 12:GF-PCA-00188- Rigid head PCBA- Top Figure 13: GF-PCA-00188-Rigid Head PCBA- Bottom Figure 14:GF-PCA-00158- Gantry PCBA- Top Side Figure 15:GF-PCA-00158- Gantry PCBA- Bottom Side Figure 16: GF-PCA-00154-Lid PCBA- Top Side Figure 17:GF-PCA-00154-Lid PCBA- Bottom Side Figure 18: GF-PCA-00173- Head Flex PCBA - Top Side Figure 19: GF-PCA-00173- Flex Head PCBA- Bottom Side

This report must not be used to claim product certification, approval, or endorsement by NVLAP, NIST, or any agency of the U.S. Government. This Report shall not be reproduced, except in full without written approval of the laboratory. Glowforge Incorporated GFD200 FCC 1.1307:2023 802.11 b/g/n Bluetooth Bluetooth Low Energy Report: GLOW0038.3, Issue Date: May 1, 2023 CERTIFICATE OF EVALUATION 2018-09-14 Product compliance is the responsibility of the client; therefore, the tests and equipment modes of operation represented in this report were agreed upon by the client, prior to testing. The results of this test pertain only to the sample(s) tested. The specific description is noted in each of the individual sections of the test report supporting this certificate of test. This report reflects only those tests from the referenced standards shown in the certificate of test. It does not include inspection or verification of labels, identification, marking or user information. As indicated in the Statement of Work sent with the quotation, Element’s standard process is to always use the latest published version of the test methods even when earlier versions are cited in the test specification. Issuance of a purchase order was de facto acceptance of this approach. Otherwise, the client would have advised Element in writing of the specific version of the test methods they wanted applied to the subject testing Last Date of Evaluation: April 21, 2023 Glowforge Incorporated EUT: GFD200 RF Exposure Evaluation Standards Specification Method FCC 1.1307:2023 FCC 1.1307:2023 Results Method Clause Description Applied Results Comments (b)(3)(i)(B) Exemption From RF Exposure Evaluation Yes Pass None Deviations From Evaluation Standards None Approved By: Donald Facteau, Process Architect Report No. GLOW0038.32/11 REVISION HISTORY 2018.07.17 Revision Number Description Date (yyyy-mm-dd) Page Number 00 None Report No. GLOW0038.33/11 ACCREDITATIONS AND AUTHORIZATIONS 2021.09.01 United States FCC - Designated by the FCC as a Telecommunications Certification Body (TCB). Certification chambers, Open Area Test Sites, and conducted measurement facilities are listed with the FCC. A2LA - Each laboratory is accredited by A2LA to ISO / IEC 17025, and as a product certifier to ISO / IEC 17065 which allows Element to certify transmitters to FCC and IC specifications. Canada ISED - Recognized by Innovation, Science and Economic Development Canada as a Certification Body (CB) and as a CAB for the acceptance of test data. European Union European Commission – Recognized as an EU Notified Body validated for the EMCD and RED Directives. United Kingdom BEIS – Recognized by the UK as an Approved Body under the UK Radio Equipment and UK EMC Regulations. Australia/New Zealand ACMA - Recognized by ACMA as a CAB for the acceptance of test data. Korea MSIT / RRA - Recognized by KCC’s RRA as a CAB for the acceptance of test data. Japan VCCI - Associate Member of the VCCI. Conducted and radiated measurement facilities are registered. Taiwan BSMI – Recognized by BSMI as a CAB for the acceptance of test data. NCC - Recognized by NCC as a CAB for the acceptance of test data. Singapore IDA – Recognized by IDA as a CAB for the acceptance of test data. Israel MOC – Recognized by MOC as a CAB for the acceptance of test data. Hong Kong OFCA – Recognized by OFCA as a CAB for the acceptance of test data. Vietnam MIC – Recognized by MIC as a CAB for the acceptance of test data. SCOPE For details on the Scopes of our Accreditations, please visit: California Minnesota Oregon Texas Washington Report No. GLOW0038.34/11 FACILITIES 2020.12.15 California Labs OC01-17 41 Tesla Irvine, CA 92618 (949) 861-8918 Minnesota Labs MN01-11 9349 W Broadway Ave. Brooklyn Park, MN 55445 (612)-638-5136 Oregon Labs EV01-12 6775 NE Evergreen Pkwy #400 Hillsboro, OR 97124 (503) 844-4066 Texas Labs TX01-09 3801 E Plano Pkwy Plano, TX 75074 (469) 304-5255 Washington Labs NC01-05 19201 120 th Ave NE Bothell, WA 98011 (425)984-6600 A2LA Lab Code: 3310.04 Lab Code: 3310.05 Lab Code: 3310.02 Lab Code: 3310.03 Lab Code: 3310.06 Innovation, Science and Economic Development Canada 2834B-1, 2834B-3 2834E-1, 2834E-3 2834D-1 2834G-1 2834F-1 BSMI SL2-IN-E-1154R SL2-IN-E-1152R SL2-IN-E-1017 SL2-IN-E-1158R SL2-IN-E-1153R VCCI A-0029 A-0109 A-0108 A-0201 A-0110 Recognized Phase I CAB for ISED, ACMA, BSMI, IDA, KCC/RRA, MIC, MOC, NCC, OFCA US0158 US0175 US0017 US0191 US0157 Report No. GLOW0038.35/11 PRODUCT DESCRIPTION 2018-07-17 Client and Equipment Under Evaluation Information Company Name: Glowforge Incorporated Address: 1938 Occidental Avenue S Suite C City, State, Zip: Seattle, WA 98134 Evaluation Requested By: Nick Woolger EUT: GFD200 Date of Evaluation: 4/21/2023 Information Provided by the Party Requesting the Evaluation Functional Description of the Equipment: The product is a consumer grade 3D laser printer, cutter and engraver. The function is to cut and engrave material with a laser diode. The device is controlled via a WiFi interface by the consumers WiFi connected device via a web interface. The radio incorporated in the product is a Realtek RTL8723DS-CG SoC with a Single stamped metal antenna Abracon PRO-OB-440. The radio can operate in the following modes Bluetooth Classic (BT FHSS), Bluetooth Low Energy (BT LE) and WLAN 2.4GHz Wi-Fi (802.11bgn). Only one radio is active at any time as the radio shares the same antenna. The BT LE radio is used to communicate with an air filter accessory product. Currently the BT FHSS radio is not used but is listed in the certification for future use. FCC ID:2A83C-BZQ6R Objective: To demonstrate compliance with FCC Requirements for RF exposure for 1.1307 RF exempt devices Report No. GLOW0038.36/11 RF EXPOSURE CONDITION 2018-07-17 The following RF Exposure conditions were used for the assessment documented in this report: Intended Use Mobile Location on Body (if applicable) N/A How is the Device Used The GFD200 is used at a distance of gr…

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1938 Occidental Ave South, Suite C, Seattle, WA 98134 Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 May 8, 2023 Re: Declaration concerning Antenna Specification for: Product name: GFD200 with FCC ID 2A83C-BZQ6R To Whom It May Concern: It is hereby declared that the product fulfils the requirement in FCC tests relating to the antenna type. Evaluation criteria 47 CFR Part 15, Subpart C (Specific rule part §15.203) state that the subject device must meet at least one of the following criteria: (a) Antenna must be permanently attached to the unit. (b) Antenna must use a unique type of connector to attach the unit. (c) Unit must be professionally installed. Installer shall be responsible for verifying that the correct antenna is employed with the unit. The device specified above confirms to the FCC recommendations for Internal antenna type described below: Model No. of antenna: PRO-OB-440 Evaluation criteria: a Type of antenna:Surface Mount PCBA mounted antennas Gain of the antenna: §15.247: <5.0 dBi Frequency range:§15.247: 2400-2483.5MHz Glowforge.com CONFIDENTIAL-1- Doc ID: b22dd8e71e0c24633d5f7593f1d10b729b9268ae Please see attached Exhibit A for photograph of the antenna within the product and Exhibit B for specifications. Please contact me if there is any information you may need. Sincerely, __________________________________________________ Nick Woolger, Principal Electrical Engineer Glowforge Inc. Glowforge.com CONFIDENTIAL-2- Doc ID: b22dd8e71e0c24633d5f7593f1d10b729b9268ae Exhibit A: Photograph of Antenna Shared BT, Wi-Fi and BLE Antenna - 2.4 GHz Glowforge.com CONFIDENTIAL-3- Doc ID: b22dd8e71e0c24633d5f7593f1d10b729b9268ae Exhibit B: Specifications (See next pages.) Glowforge.com CONFIDENTIAL-4- Doc ID: b22dd8e71e0c24633d5f7593f1d10b729b9268ae ABRACON IS ISO9001-2015 CERTIFIED Hidden Creek Ln Spicewood TX 78669 5101 Phone: 512-371-6159 | Fax: 512-351-8858 REVISED: 11-01-22 For terms and conditions of sales, please visit: www.abracon.com OnBoard 2.4 GHz SMD - Antenna PRO-OB-440 13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1 Request Samples Check Inventory Features •Compact •Low Cost •Mixed Linear Polarization •Peak Gain of less than 5 dBi •Efficiency > 65% •Surface Mount •Durable-Shelf life of up to 10 years Applications • 2.4 GHz - Wi-Fi/BT/BLE/ZigBee/ISM • IoT, M2M o Industrial IoT o Consumer IoT o Medical IoT • Telemetry • Wireless Remote Control • Personal Area Networks (PAN) • Industrial/Commercial Equipments Product Image Doc ID: b22dd8e71e0c24633d5f7593f1d10b729b9268ae ABRACON IS ISO9001-2015 CERTIFIED Hidden Creek Ln Spicewood TX 78669 5101 Phone: 512-371-6159 | Fax: 512-351-8858 REVISED: 11-01-22 For terms and conditions of sales, please visit: www.abracon.com OnBoard 2.4 GHz SMD - Antenna PRO-OB-440 13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1 Request Samples Check Inventory Electrical Specification Note: All measurements were conducted on the evaluation board in free space. Performance will vary depending on the ground plane, application, and environment. Mechanical Specification Environmental Specification Parameter Specification Unit Operating Frequency 2400 - 2500 MHz Center Frequency 2450 Return Loss ˂ -6.9 dB Polarization Mixed Linear - Maximum Gain < 5.0 dBi Efficiency > 65 % Impedance 50 Ω Parameter Specification Antenna Dimension 13.75 x 5.23 x 3.53 mm Evaluation board Dimension 100 x 50 mm Mounting Type Surface Mount Parameter Specification Operating Temperature -40°C to +125°C Storage Temperature Maximum Temperature 400°C RoHS Compliance Yes Com pliant with EU directive 2011/65/EU and 2015/863 Shelf life 10 years MSL Level 1, unlimited Mechanical resistance Immunity to vibrations IEC/EN 60068-2-6, Fc test Immunit y to shock IEC/EN 60068-2-27, Ea test Doc ID: b22dd8e71e0c24633d5f7593f1d10b729b9268ae ABRACON IS ISO9001-2015 CERTIFIED Hidden Creek Ln Spicewood TX 78669 5101 Phone: 512-371-6159 | Fax: 512-351-8858 REVISED: 11-01-22 For terms and conditions of sales, please visit: www.abracon.com OnBoard 2.4 GHz SMD - Antenna PRO-OB-440 13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1 Request Samples Check Inventory Product Dimension Unit : mm Antenna pins and keep-out block Unit : mm Doc ID: b22dd8e71e0c24633d5f7593f1d10b729b9268ae ABRACON IS ISO9001-2015 CERTIFIED Hidden Creek Ln Spicewood TX 78669 5101 Phone: 512-371-6159 | Fax: 512-351-8858 REVISED: 11-01-22 For terms and conditions of sales, please visit: www.abracon.com OnBoard 2.4 GHz SMD - Antenna PRO-OB-440 13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1 Request Samples Check Inventory PCB layout and antenna pin numbering The antenna uses PIFA technology and should thus be mounted on a ground plane. If there are several layers in the PCB, there is an advantage to add vias for smooth interconnection of the ground areas to avoid splits in the ground plane. It is also important that there is a ground clearance around the NC pads and the RF feed pad, through all layers of the PCB. It is recommended to implement a matching network to optimize the antenna impedance in your application. The components can be positioned under the antenna. See recommendations in the figures below. Pin configuration PCB Layout (from evaluation board) Clearance through all layers Unit : mm Doc ID: b22dd8e71e0c24633d5f7593f1d10b729b9268ae ABRACON IS ISO9001-2015 CERTIFIED Hidden Creek Ln Spicewood TX 78669 5101 Phone: 512-371-6159 | Fax: 512-351-8858 REVISED: 11-01-22 For terms and conditions of sales, please visit: www.abracon.com OnBoard 2.4 GHz SMD - Antenna PRO-OB-440 13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1 Request Samples Check Inventory Measurement Setup The antenna measurements were all done in free space with the OnBoard SMD 2400 evaluation board (PRO-EB-450) that has a PCB size of 100 x 50 mm. Doc ID: b22dd8e71e0c24633d5f7593f1d10b729b9268ae ABRACON IS ISO900…

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ABRACON IS ISO9001-2015 CERTIFIED Hidden Creek Ln Spicewood TX 78669 5101 Phone: 512-371-6159 | Fax: 512-351-8858 REVISED: 11-01-22 For terms and conditions of sales, please visit: www.abracon.com OnBoard 2.4 GHz SMD - Antenna PRO-OB-440 13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1 Request Samples Check Inventory Features • Compact • Low Cost • Mixed Linear Polarization • Peak Gain of less than 5 dBi • Efficiency > 65% • Surface Mount • Durable-Shelf life of up to 10 years Applications • 2.4 GHz - Wi-Fi/BT/BLE/ZigBee/ISM • IoT, M2M o Industrial IoT o Consumer IoT o Medical IoT • Telemetry • Wireless Remote Control • Personal Area Networks (PAN) • Industrial/Commercial Equipments Product Image ABRACON IS ISO9001-2015 CERTIFIED Hidden Creek Ln Spicewood TX 78669 5101 Phone: 512-371-6159 | Fax: 512-351-8858 REVISED: 11-01-22 For terms and conditions of sales, please visit: www.abracon.com OnBoard 2.4 GHz SMD - Antenna PRO-OB-440 13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1 Request Samples Check Inventory Electrical Specification Note: All measurements were conducted on the evaluation board in free space. Performance will vary depending on the ground plane, application, and environment. Mechanical Specification Environmental Specification Parameter Specification Unit Operating Frequency 2400 - 2500 MHz Center Frequency 2450 Return Loss ˂ -6.9 dB Polarization Mixed Linear - Maximum Gain < 5.0 dBi Efficiency > 65 % Impedance 50 Ω Parameter Specification Antenna Dimension 13.75 x 5.23 x 3.53 mm Evaluation board Dimension 100 x 50 mm Mounting Type Surface Mount Parameter Specification Operating Temperature -40°C to +125°C Storage Temperature Maximum Temperature 400°C RoHS Compliance Yes Compliant with EU directive 2011/65/EU and 2015/863 Shelf life 10 years MSL Level 1, unlimited Mechanical resistance Immunity to vibrations IEC/EN 60068-2-6, Fc test Immunity to shock IEC/EN 60068-2-27, Ea test ABRACON IS ISO9001-2015 CERTIFIED Hidden Creek Ln Spicewood TX 78669 5101 Phone: 512-371-6159 | Fax: 512-351-8858 REVISED: 11-01-22 For terms and conditions of sales, please visit: www.abracon.com OnBoard 2.4 GHz SMD - Antenna PRO-OB-440 13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1 Request Samples Check Inventory Product Dimension Unit : mm Antenna pins and keep-out block Unit : mm ABRACON IS ISO9001-2015 CERTIFIED Hidden Creek Ln Spicewood TX 78669 5101 Phone: 512-371-6159 | Fax: 512-351-8858 REVISED: 11-01-22 For terms and conditions of sales, please visit: www.abracon.com OnBoard 2.4 GHz SMD - Antenna PRO-OB-440 13.75 x 5.23 x 3.53 mm RoHS/RoHS II Compliant MSL Level = 1 Request Samples Check Inventory PCB layout and antenna pin numbering The antenna uses PIFA technology and should thus be mounted on a ground plane. …

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