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    Privacy Policy

    Effective Date: October 1, 2025 | Last Updated: October 11, 2026

    Introduction

    PartGuys, an assumed name (d/b/a) of L&J LLC, a Michigan limited liability company, and its associated entities ("PartGuys," "we," "us," or "our") are committed to protecting your privacy and handling your personal data with utmost care and confidentiality. We comply with applicable US federal and state privacy laws, including the California Consumer Privacy Act (CCPA).

    This Privacy Policy explains what personal data we collect, how we use it, who we share it with, and your rights regarding your data. By using our website or services, you agree to the collection and use of information in accordance with this policy.

    PartGuys acts as the data controller responsible for processing and storing personal data collected from customers, vendors, and website visitors. For questions about this Privacy Policy, please contact us at support@partguys.io.

    Important: PartGuys has never sold and will never sell your personal data to third parties.

    1. Personal Data We Collect

    We collect various types of personal data for different purposes. Below are the categories of personal data we collect and their sources:

    CategoryPersonal Data CollectedSource
    Personal IdentifiersName, username, email address, shipping address, billing address, IP address, phone numberYou (direct input)
    Customer RecordsName, address, telephone number, profile picture, payment information, tax ID number, business informationYou (direct input)
    Commercial InformationPurchase history, order details, 3D model files, material preferences, post-processing selections, saved carts, quotesYou, third-party analytics
    Internet ActivityBrowsing history, search history, click patterns, page views, interaction dataYou, third-party analytics
    Geolocation DataGeneral physical location (city/state level), IP-based locationThird-party analytics
    Professional InformationCompany name, job title, business type, professional experience (for B2B accounts)You (direct input)
    Communication DataSupport messages, internal messages, email correspondence, chat transcriptsYou (direct input)

    2. How We Use Your Personal Data

    2.1 Order Processing and Fulfillment

    To process and deliver your orders, we require your name, email address, delivery address, payment details, and phone number. We use this information to:

    • • Validate and process your 3D model files
    • • Manufacture your parts according to specifications
    • • Apply post-processing services (dyeing, painting, smoothing)
    • • Coordinate shipping and delivery with carriers
    • • Send order status updates and tracking information
    • • Process payments and handle refunds if applicable

    This data may be shared with third parties such as shipping carriers (USPS, FedEx, UPS, DHL) only when necessary to fulfill contractual obligations.

    2.2 Customer Service and Support

    We use your contact information to provide customer service, including:

    • • Responding to inquiries and support requests
    • • Resolving technical issues with file uploads or orders
    • • Addressing quality concerns or defects
    • • Processing returns, refunds, or reprints
    • • Sending important service announcements

    2.3 Account Management

    When you register on our website, we collect your name and email to create your account. You have full access to your account data and can update, modify, or delete it at any time through your profile settings.

    2.4 Service Improvement and Analytics

    We analyze usage patterns and customer feedback to:

    • • Improve website functionality and user experience
    • • Develop new features and technologies
    • • Optimize pricing and production efficiency
    • • Conduct research on 3D printing trends (using anonymized data)
    • • Test and refine our AI material assistant

    2.5 Marketing and Communications

    With your consent, we may send you:

    • • Promotional offers and discount codes
    • • Newsletter with industry news and updates
    • • Referral program opportunities
    • • New material and technology announcements
    • • Educational content about 3D printing

    You can opt out of marketing communications at any time by clicking the unsubscribe link in our emails or updating your notification preferences in your account settings.

    2.7 Business Development

    For B2B customers, we collect commercially relevant information about companies and their contacts to identify potential customers, partners, and suppliers. This data is securely stored and accessible only by authorized employees based on our legitimate business interest.

    2.8 Legal Compliance and Security

    We process personal data to:

    • • Comply with legal obligations and regulations
    • • Prevent fraud, abuse, and unauthorized access
    • • Protect our rights, property, and safety
    • • Enforce our Terms of Service
    • • Respond to legal requests from authorities

    3. Data Sharing and Third-Party Recipients

    We do not sell, rent, or trade your personal data to third parties. We only share data when necessary to fulfill our services or as required by law.

    3.1 Service Providers

    We share limited data with trusted third-party service providers who help us operate our business:

    • • Payment Processors: Stripe (for credit card payments) - receives payment information
    • • Shipping Carriers: USPS, FedEx, UPS, DHL - receive shipping addresses and package details
    • • Cloud Infrastructure: Supabase, AWS - store and process data securely
    • • Analytics Tools: Google Analytics - analyze website usage (anonymized)
    • • Email Services: Resend - send transactional and marketing emails
    • • Support Tools: Communication platforms for customer service

    All service providers are bound by strict confidentiality agreements and are only permitted to use your data for the specific services they provide to us.

    3.2 Your Uploaded Files and Intellectual Property

    You Retain Full Ownership: All 3D models, designs, and files you upload to PartGuys remain your intellectual property. We do not claim any ownership rights to your designs.

    Limited Processing License: By uploading files, you grant PartGuys a limited, non-exclusive, royalty-free license to use your files solely for:

    • • Manufacturing your ordered parts
    • • Quality control and file validation
    • • Technical support and troubleshooting
    • • Internal process improvement (anonymized analysis only)

    We Will NOT:

    • • Share your designs with third parties (except manufacturers fulfilling your order)
    • • Use your designs for marketing without your explicit written consent
    • • Retain your files longer than necessary (auto-deleted 90 days after order completion)
    • • Claim any intellectual property rights to your work

    File Deletion: You can request immediate deletion of any uploaded files through your account settings or by contacting support@partguys.io. Files are automatically deleted 90 days after order completion unless you save them to your permanent library.

    3.3 Business Partners

    For our marketplace features, we may share order information with store owners who fulfill custom product orders. Store owners only receive information necessary to manufacture and ship their products.

    3.4 Legal Requirements

    We may disclose personal data when required by law or in response to:

    • • Court orders, subpoenas, or legal processes
    • • Requests from law enforcement or government authorities
    • • Protection of our legal rights or property
    • • Investigation of fraud or security incidents
    • • Protection of user safety or public interest

    3.5 Business Transfers

    In the event of a merger, acquisition, reorganization, or sale of assets, your personal data may be transferred to the successor entity. We will notify you before your data is transferred and becomes subject to a different privacy policy.

    3.6 With Your Consent

    We may share your data for other purposes with your explicit consent, such as featuring your projects in our showcase or sharing testimonials.

    3.7 Third-Party Service Providers

    We share personal data with trusted service providers who help us deliver our services. These providers are contractually obligated to protect your data and use it only for specified purposes.

    Payment Processing:

    • Stripe - Payment processing, fraud prevention (PCI-DSS compliant)

    Shipping & Logistics:

    • USPS, FedEx, UPS, DHL - Order delivery (name, address, tracking only)

    Cloud Infrastructure:

    • Supabase/AWS - Secure data storage and hosting

    Analytics & Performance:

    • Google Analytics - Website traffic analysis (anonymized where possible)

    • Meta/Facebook Pixel - Advertising campaign effectiveness

    Communication:

    • Email service provider - Transactional and marketing emails

    We Do NOT sell your data: PartGuys has never sold and will never sell your personal information to third parties for their marketing purposes.

    Each provider operates under their own privacy policy. We conduct due diligence to ensure they maintain adequate data protection standards.

    3.8 NDA-Protected Files

    When you activate NDA protection for your uploaded files, enhanced confidentiality protections apply:

    Superseding Terms:

    Your Non-Disclosure Agreement terms supersede this Privacy Policy where conflicts exist. The NDA provides stronger protections for your confidential information.

    Restricted Processing:

    • • Files used ONLY for manufacturing your specific order
    • • NO anonymized analysis or process improvement use
    • • NO aggregated data analysis or machine learning training
    • • NO retention beyond order completion (unless you explicitly save to library)

    Enhanced Access Controls:

    • • Files accessible only to authorized personnel directly involved in your order
    • • Specific manufacturer approval required before file sharing, except for requests you send through PartGuys Global Source, where circulating the request to vetted suppliers for competing bids is the service itself and your authorization is taken at the intake (see Terms of Service 3.6)
    • • Additional encryption and security logging
    • • 24-hour breach notification (vs. standard timeframes)

    Business Transfer Exception:

    NDA-protected files are explicitly excluded from automatic transfer in any merger, acquisition, or asset sale. Such files require your individual written consent before transfer to any successor entity.

    Verification:

    Your active NDA status is indicated by a green "NDA Protection Active" badge in your account. You can view your NDA agreement details, including reference number and expiration date, in your account settings.

    Questions:

    For NDA-specific privacy concerns, contact support@partguys.io with your NDA reference number.

    3.9 AI Design Tools

    What we collect

    When you use the PartGuys CAD designer (cad.partguys.io), we collect what you type, the photos, drawings, scans and CAD files you attach, the designs and programs the designer makes, the ratings and reasons you give, your beta application, and records of usage and AI credits.

    Who processes it

    • • OpenAI: your requests, and the pictures and drawings you attach, are sent to OpenAI's API to generate each design. OpenAI processes them under its API terms, which say API data is not used to train its models unless the customer opts in.
    • • Your browser: the 3D modelling itself runs on your own computer, inside your browser.
    • • Our servers: saved designs, attached files, scan repairs and ratings are kept and processed on servers we rent for PartGuys.

    How long we keep it

    • • Attached pictures and drawings: 7 days, unless a saved design still uses them.
    • • Saved designs and their files: until you remove them. Removed designs are deleted 30 days later.
    • • Ratings, reasons and the programs that made rated results: kept to improve the designer, unless you ask us to delete them.
    • • Credit and usage records: kept with your account records.

    Worked examples

    A PartGuys staff member may choose the program behind a well-rated result as a worked example that helps the designer with similar requests from other customers. We review it first and remove anything that identifies you. Your uploaded files, drawings and photos are never shared. To keep your designs out of worked examples, or to have your AI design data deleted, email support@partguys.io.

    4. Data Security and Protection

    We implement comprehensive security measures to protect your personal data from unauthorized access, disclosure, alteration, or destruction.

    4.1 Technical Safeguards

    • • Encryption: All data transmitted to and from our website is encrypted using SSL/TLS (256-bit)
    • • Secure Storage: Data at rest is encrypted in secure cloud infrastructure
    • • Access Controls: Role-based access limits data visibility to authorized personnel only
    • • Authentication: Multi-factor authentication for administrative access
    • • Firewalls: Network security measures to prevent unauthorized access
    • • Monitoring: Continuous security monitoring and intrusion detection

    4.2 File Security

    Your 3D model files receive special protection:

    • • Files are encrypted during upload, storage, and processing
    • • Access limited to authorized production staff on a need-to-know basis
    • • Automatic file deletion 90 days after order completion
    • • Secure file sharing with encrypted links for collaborative projects
    • • No files are shared with third parties except as needed for production

    4.3 Operational Safeguards

    • • Regular security audits and vulnerability assessments
    • • Employee training on data protection and privacy
    • • Confidentiality agreements with all staff and contractors
    • • Incident response procedures for security breaches
    • • Regular backups to prevent data loss

    4.4 Payment Security

    We do not store complete credit card information on our servers. Payment processing is handled by PCI-DSS compliant payment processors (Stripe) who specialize in secure payment handling.

    While we implement industry-standard security measures, no method of transmission or storage is 100% secure. We cannot guarantee absolute security but are committed to protecting your data to the best of our abilities.

    5. Data Retention

    We retain personal data only as long as necessary for the purposes for which it was collected or as required by law.

    Account Data

    Retained while your account is active. After account closure, basic records are kept for 3 years for business continuity and legal compliance.

    3D Model Files

    Automatically deleted 90 days after order completion to facilitate reorders. You can request immediate deletion or extended storage in your file library.

    Order & Transaction Records

    Maintained for 7 years as required for accounting, tax compliance, and warranty purposes. Includes invoices, payment records, and order details.

    Support Communications

    Kept for 2 years to maintain service quality, resolve disputes, and provide historical context for ongoing support issues.

    Marketing Data

    Retained until you opt out of marketing communications or close your account. Newsletter subscription data is deleted immediately upon unsubscribe.

    Analytics Data

    Aggregated and anonymized data may be retained indefinitely for statistical analysis and service improvement. Individual user data is retained for 26 months.

    You can request earlier deletion of your data by contacting us, subject to legal and contractual obligations that may require us to retain certain information.

    6. Cookies and Tracking Technologies

    We use cookies and similar tracking technologies to enhance your experience, analyze site usage, and deliver personalized content. Cookies are small text files stored on your device when you visit our website.

    6.1 Types of Cookies We Use

    Cookie TypePurposeDurationCan Opt Out?
    Essential CookiesEnable core functionality (login, cart, file uploads)Session/1 yearNo - required for service
    Analytics CookiesGoogle Analytics - track page views, user behavior2 yearsYes
    Functional CookiesRemember preferences (material selections, units)1 yearYes
    Marketing CookiesTrack ad campaign effectiveness30-90 daysYes

    6.2 Third-Party Analytics

    • Google Analytics

    We use Google Analytics to understand how users interact with our site. Google may use this data per their privacy policy.

    Opt out: Install the Google Analytics Opt-out Browser Add-on

    • Meta Pixel

    Tracks conversion events for advertising optimization.

    Opt out: Adjust settings via browser or Digital Advertising Alliance

    6.3 Your Cookie Choices

    You can control cookies through:

    • • Browser settings: Most browsers allow you to refuse cookies or delete existing ones
    • • Account settings: Adjust analytics preferences in your account
    • • Do Not Track: We honor Do Not Track signals where technically feasible
    • • Cookie consent banner: Manage preferences on first visit

    Note: Disabling cookies may affect website functionality and your user experience.

    7. PartGuys Source Browser Extension

    PartGuys Source is an optional Chrome extension. If you install it, it sends us anonymous counts of how it is used. This section describes exactly what those counts contain.

    7.1 What the extension sends

    • • Which of its features you used, as plain counts
    • • Prices you asked for and their totals, with the technology and material
    • • The hostname of the site a model was downloaded from (for example files.printables.com)
    • • The file type and size of that model
    • • The file name, but only for a model downloaded from a public model site, where that name is already public

    7.2 What it does not send

    • • Page addresses. We record the hostname only, never the full URL, the path or anything after it
    • • The names of files you drag in from your own computer. Those contribute a file type and a size and nothing else
    • • Your email address, name or any other contact detail
    • • Your IP address. It is replaced with a one-way fingerprint before anything is written down, which lets us count separate networks without being able to identify one

    7.3 How events are grouped

    A random identifier is created in your browser to group one person's events together. It is generated by the extension, stored only in your browser, and sent to nothing else. It is deliberately not the same identifier your cart uses, so these counts cannot be connected to an order, an email address or a name — not by us and not by anyone reading the data.

    7.4 How long they are kept

    Usage events are deleted automatically after 180 days.

    7.5 Model files

    Separately from the counts above, a model file you choose to price or order is sent to PartGuys so that we can quote it and make it. Those files are covered by the rest of this policy in the same way as a file uploaded through our website, including how long we keep them and who can see them.

    Removing the extension stops all of it. Nothing above happens on partguys.io itself.

    8. Your Privacy Rights

    You have several rights regarding your personal data under CCPA and other applicable US privacy laws:

    8.1 Right of Access

    Request confirmation of whether we process your personal data and obtain a copy of your data in a structured, commonly used format.

    8.2 Right to Correction

    Request correction of inaccurate personal data or completion of incomplete data. You can also update most information directly through your account settings.

    8.3 Right to Deletion ("Right to be Forgotten")

    Request deletion of your personal data when it is no longer necessary, you withdraw consent, or object to processing. Some data may be retained for legal obligations or legitimate business purposes.

    8.4 Right to Restriction of Processing

    Request that we limit processing of your data while we verify accuracy, assess legality, or handle your objection to processing.

    8.5 Right to Data Portability

    Receive your personal data in a structured, machine-readable format and request transfer to another service provider where technically feasible.

    8.6 Right to Object

    Object to processing of your data for direct marketing purposes (opt-out anytime) or processing based on legitimate interests.

    8.7 Right to Withdraw Consent

    Withdraw consent for data processing at any time where consent is the legal basis. This does not affect the lawfulness of processing before withdrawal.

    8.8 Right to Non-Discrimination

    PartGuys will not discriminate against you for exercising your privacy rights. You will receive the same quality of service regardless.

    How to Exercise Your Rights

    To exercise any of these rights, contact us at support@partguys.io or submit a request through your account settings. We will:

    • • Verify your identity for security purposes
    • • Respond within 30 days (may be extended to 60 days for complex requests)
    • • Provide reasons if we cannot fulfill your request
    • • Not charge a fee unless requests are excessive or repetitive

    If you are unsatisfied with our response, you may file a complaint with the California Attorney General's office (for California residents) or the US Federal Trade Commission.

    9. Children's Privacy

    Our services are intended for users aged 18 and older. We do not knowingly collect personal data from children under 13 years of age (or 16 in the EU). Users aged 13-17 may use our services only with the consent and supervision of a parent or legal guardian.

    If we become aware that we have inadvertently collected personal data from a child under the applicable age limit without parental consent, we will take steps to delete that information as quickly as possible.

    Parents or guardians who believe we may have collected information from a child should contact us immediately at support@partguys.io.

    10. International Data Transfers

    PartGuys operates exclusively in the United States. Personal data is collected, processed, and stored within US-based data centers operated by our infrastructure providers. We do not transfer your personal data outside the United States.

    Our infrastructure providers comply with industry-recognized security standards (SOC 2).

    11. Changes to This Privacy Policy

    We may update this Privacy Policy periodically to reflect changes in our practices, technologies, legal requirements, or business operations. The "Last Updated" date at the top of this policy indicates when it was most recently revised.

    For significant changes that materially affect your rights or how we process your data, we will:

    • • Send email notification to registered users
    • • Display a prominent notice on our website
    • • Request renewed consent where legally required

    Advance Notice for Material Changes: We will provide at least 30 days advance notice for material changes that significantly affect your privacy rights or how we handle your data. This notice period allows you to review changes and make informed decisions about continued use of our services.

    We encourage you to review this Privacy Policy periodically. Continued use of our services after changes become effective constitutes acceptance of the revised policy.

    12. Contact Information

    For questions about this Privacy Policy, to exercise your privacy rights, or to raise privacy concerns:

    Privacy Inquiries

    Email: support@partguys.io

    Subject Line: "Privacy Request - [Your Request Type]"

    General Support

    Email: support@partguys.io

    Contact Form: Contact Us

    Response Timeframe

    We aim to respond to all privacy inquiries within 30 days. Complex requests may require up to 60 days, and we will inform you of any delay. Identity verification may be required for security purposes.

    This Privacy Policy complies with the California Consumer Privacy Act (CCPA) and other applicable US privacy laws. By using PartGuys' services, you acknowledge that you have read and understood this Privacy Policy.

    Your Privacy is Our Priority

    We're committed to transparency and protecting your data. If you have any questions or concerns about how we handle your information, we're here to help.