TERMS & POLICIES – HEIN DYNAMICS LLC

1. General Overview

Hein Dynamics LLC provides 3D printer repair, on-demand 3D printing, and custom design services. By using this website, submitting a service request, or approving a quote, you agree to the terms outlined below.

2. Quotes & Pricing

  • All production and repair work is quoted and approved before proceeding. Diagnostic services may be authorized separately before a final repair estimate is available.

  • Quotes are based on project details, materials, estimated time, and service requirements.

  • Quoted pricing may be revised before customer approval due to changes in material costs, labor requirements, or project specifications. Once approved, pricing will remain unchanged for the authorized scope of work. Any additional work or charges must be communicated and approved by the customer before proceeding.

  • Quotes remain valid for the period specified in the estimate. Expired quotes may be revised before approval.

  • General labor / design rates start at $50/hour.

Service & Repair Estimates

  • Diagnostic fees cover the initial evaluation and troubleshooting of equipment and are non-refundable once diagnostic work has begun.

  • Final repair estimates are provided after evaluation when the required work and parts can be reasonably identified.

  • Customers must approve the repair estimate before work beyond the authorized diagnostic scope or related parts purchases proceed.

  • If additional problems are discovered, Hein Dynamics will communicate any additional charges and obtain approval before proceeding beyond the authorized scope.

  • Parts availability and previously unidentified equipment conditions may affect pricing and turnaround times.

3. Deposits & Payment

  • Deposits may be required before work begins to secure special-order parts, materials, or production capacity.

  • Deposits will be applied toward the approved invoice. Any cancellation charges or non-refundable amounts will be disclosed before payment.

  • Remaining balances are due before delivery or pickup unless alternative payment terms have been agreed upon in writing.

  • Commercial customers may be offered alternative payment terms, including Net 15, as specified in an accepted quotation, purchase order, or written agreement.

    Payment Methods

  • ACH and Zelle: No additional processing fees.

  • Credit cards: Any applicable processing fee will be disclosed before payment and charged only where permitted by applicable law and payment-network rules.

4. Minimum Charges

  • Minimum charges may apply to repair services, diagnostic work, design services, and custom print orders. Applicable minimums will be communicated before work begins.

  • Minimum charges cover the initial service or production requirements and may apply regardless of the time or materials ultimately required.

  • For custom print orders, customers may be offered additional copies when multiple items can be produced within the applicable minimum charge. Any additional quantities will be confirmed before production.

5. Print Quality & Material Disclaimer

Print quality and performance are influenced by file design, material selection, manufacturing processes, equipment limitations, and intended use.

  • Hein Dynamics will make reasonable efforts to produce parts according to the approved specifications; however, perfect cosmetic results are not guaranteed.

  • Surface finish, color, strength, and dimensional accuracy may vary depending on the design, material, manufacturing process, and environmental conditions.

  • Customers are responsible for communicating intended applications, critical dimensions, fitment requirements, and any applicable safety or regulatory requirements before production.

  • Hein Dynamics is not responsible for issues arising from inaccurate customer-provided specifications, flawed customer-supplied designs, or customer-selected materials that are unsuitable for the intended application, except where otherwise agreed in writing.

Any specific dimensional tolerances, material requirements, or acceptance criteria must be established in the approved quotation or project specifications.

6. File Responsibility & Authorization

Customer-Provided Files & Intellectual Property

By submitting files or project requests, customers confirm that:

  • They have the necessary rights and authorization to use, reproduce, and provide the submitted files for the requested services.

  • The requested use of submitted files does not infringe upon copyrights, trademarks, or other intellectual property rights.

Customers are responsible for the accuracy and completeness of their submitted files and specifications. Hein Dynamics is not responsible for unauthorized use of files or inaccurate customer-provided information, except to the extent caused by Hein Dynamics' own actions.

Printer Files, Firmware & Settings

  • Customers are responsible for backing up important files, print profiles, configurations, and settings before submitting equipment for repair.

  • Diagnostic and repair procedures may require firmware updates, factory resets, calibration, configuration changes, or removal of stored files.

  • Hein Dynamics will exercise reasonable care during service but cannot guarantee preservation of stored data, files, or settings.

  • Customers should disclose any critical or custom configurations before service begins.

7. Custom Work & Design Services

  • Custom design work is an iterative process and may require multiple revisions to achieve the intended result.

  • Designs are developed based on customer-provided specifications, intended use, and information available during the project.

  • The approved quotation will establish the initial scope of design work. Additional revisions, design changes, or requirements outside that scope may result in additional charges or revised timelines.

  • Any additional charges will be communicated and approved before the additional work proceeds.

  • Customer approval of a final design or prototype authorizes production in accordance with the approved specifications.

Fit & Function

For projects designed to interface with existing equipment, components, or assemblies:

  • Customers may be asked to provide physical components, measurements, drawings, or other reference materials for testing and validation.

  • Physical fitment testing may be required before final production. Any applicable testing requirements will be established during the project.

  • Customers are responsible for providing accurate specifications and identifying critical dimensions, operating conditions, and application-specific requirements.

  • When physical components or equipment are unavailable for testing, fitment will be based on the provided specifications, and additional adjustments may be necessary.

Any changes requested after final design or prototype approval may require additional charges and updated delivery timelines.

8. Repairs & Service Work

Repair Services

  • Repair services are intended to diagnose and correct reported issues and restore equipment to a functional state within the approved scope of work.

  • Services may include inspection, disassembly, component replacement, mechanical adjustments, calibration, firmware or configuration changes, and test prints as reasonably necessary.

  • Additional issues discovered during diagnosis or repair will be communicated to the customer. Work outside the approved scope requires customer authorization before proceeding.

  • Equipment will be tested as appropriate to the repair performed. Successful testing confirms operation under the conditions tested but does not guarantee against future failures or issues unrelated to the completed repair.

  • Perfect print quality is not guaranteed. Results may vary based on filament, slicer settings, environmental conditions, normal wear, maintenance, and other factors outside the scope of service.

Repair Workmanship Warranty

  • Hein Dynamics LLC provides a workmanship warranty for 30 calendar days or 150 print hours, whichever occurs first, beginning on the documented repair completion date.

  • For printers that do not display or reliably track cumulative print hours, the warranty is limited to 30 calendar days.

  • Warranty coverage applies only to the specific work performed and does not constitute a warranty of the entire printer.

  • The applicable warranty expiration date and print-hour limit, when available, will be documented on the completed repair slip.

Warranty Claims & Limitations

  • Customers must report suspected workmanship issues within the applicable warranty period and make the equipment available for inspection.

  • Hein Dynamics will evaluate the reported issue to determine whether it resulted from the original repair.

  • If a workmanship defect is confirmed, Hein Dynamics will correct the affected repair at no additional labor charge.

  • Replacement parts may or may not be covered depending on the cause of failure and applicable manufacturer or supplier warranties. Any additional parts charges will be disclosed and approved before proceeding.

  • This warranty excludes unrelated failures, normal wear, consumable items, misuse, accidental damage, subsequent modifications, customer-supplied parts, and components outside the original repair scope.

  • Warranty service does not restart or extend the original warranty period.

  • Nothing in this warranty limits rights or remedies that cannot be excluded under applicable law.

The complete Repair Terms & Workmanship Warranty, including the applicable expiration date and print-hour limit, will be provided with the completed repair documentation.

On-Site Service

  • On-site service may include a travel fee based on location.

  • Travel fees will be communicated and approved prior to scheduling service.

  • Additional visits, parts, or repairs outside the approved scope may require a revised estimate and customer authorization.

9. Refunds & Cancellations

  • Custom manufacturing, design, and repair services may become non-refundable once authorized work or production has begun.

  • Customers remain responsible for diagnostic services performed, approved labor, and parts ordered or installed before cancellation.

  • Special-order or non-returnable parts may not be eligible for cancellation or refund once ordered.

  • Any applicable repair workmanship warranty remains in effect regardless of this cancellation policy.

  • Nothing in this section limits rights or remedies that cannot be excluded under applicable law.

10. Turnaround Times

  • Turnaround times and completion dates are estimates unless a specific deadline has been agreed upon in writing.

  • Estimated timelines may vary based on:

    • Project or repair complexity

    • Parts and material availability

    • Vendor or shipping delays

    • Production capacity

    • Revision or testing requirements

    • Customer approvals or additional information required to proceed

  • Delays caused by unavailable or backordered parts, shipping carriers, suppliers, customer-requested changes, or other circumstances outside Hein Dynamics' reasonable control may extend the estimated completion date.

  • Hein Dynamics will communicate significant known delays and provide updated timing when reasonably possible.

  • For commercial orders, any specifically agreed delivery date or schedule stated in an accepted quotation, purchase order, or other written agreement will govern that order.

11. Delivery & Pickup

  • Local pickup is available in Gilbert, Arizona.

  • Shipping is available upon request.

  • Shipping costs are the responsibility of the customer unless otherwise agreed.

Customer Equipment Pickup

  • Customers will be notified when their equipment is ready for pickup.

  • Payment of all authorized charges is required before equipment is released unless otherwise agreed in writing.

  • Customers are responsible for arranging pickup within a reasonable period following notification.

  • Equipment remaining unclaimed may be subject to storage charges or other procedures only after applicable notice requirements have been satisfied and as permitted by Arizona law.

12. Limitation of Liability

12.1 Scope of Services and Responsibility

Hein Dynamics LLC provides 3D printer repair, diagnostics, design, custom manufacturing, and related services according to the scope of work authorized by the customer.

Hein Dynamics will exercise reasonable care in performing authorized services and handling customer-owned equipment. Services and products are subject to the specifications, limitations, and warranties expressly established in the applicable quotation, invoice, repair documentation, or written agreement.

Hein Dynamics does not guarantee the continued operation of equipment or the performance of components outside the approved scope of work.

12.2 Pre-Existing Conditions and Unrelated Failures

To the extent permitted by applicable law, Hein Dynamics is not responsible for failures or damages caused solely by:

  • Pre-existing defects or conditions unrelated to the authorized repair.

  • Components that were not inspected, repaired, or replaced as part of the approved scope of work.

  • Improper operation, misuse, neglect, or operation outside manufacturer specifications.

  • Unauthorized modifications, subsequent repairs, or alterations performed by the customer or third parties.

  • Inaccurate or incomplete information, specifications, or instructions provided by the customer.

These exclusions do not apply to the extent that damage or failure is caused by Hein Dynamics' own work or conduct for which it is legally responsible.

12.3 Repair Services and Customer-Owned Equipment

Repair services are limited to the work authorized by the customer. Diagnostic procedures and post-repair testing are intended to identify and verify the correction of reported issues but do not constitute a comprehensive inspection or certification of the entire machine unless expressly agreed upon in writing.

Successful testing confirms operation only under the conditions tested and does not guarantee against future failures, unrelated defects, or subsequent equipment damage.

Hein Dynamics will exercise reasonable care while customer equipment is in its possession. Responsibility for loss of or damage to customer equipment will be determined according to the cause of the loss, the circumstances involved, and applicable law.

Nothing in this section eliminates the Repair Workmanship Warranty described in Section 8 or excludes liability that cannot lawfully be excluded.

12.4 Electrical Equipment, Fire, and Property Damage

Customers acknowledge that 3D printers contain electrical components, heating elements, moving assemblies, and other systems that may present inherent operating risks.

Customers are responsible for operating and maintaining their equipment in accordance with manufacturer instructions, applicable safety requirements, and any specific recommendations communicated by Hein Dynamics.

Hein Dynamics is not responsible for property damage, fire, or other losses caused solely by unrelated equipment defects, subsequent customer or third-party modifications, misuse, or conditions outside its authorized work.

Nothing in this provision excludes or limits liability for property damage, personal injury, or other losses to the extent caused by Hein Dynamics' negligence, defective workmanship, or other conduct for which liability cannot legally be excluded.

12.5 Custom Manufacturing, Design, and Product Use

Custom-manufactured products may have limitations associated with material properties, manufacturing methods, environmental conditions, loading, temperature, wear, and intended application.

Customers are responsible for communicating critical specifications, intended uses, dimensional tolerances, operating conditions, and applicable safety or regulatory requirements before approving production.

Unless expressly included in the approved scope of work, Hein Dynamics does not undertake independent engineering certification, regulatory testing, or validation of a product's suitability for a particular commercial or safety-critical application.

Customers are responsible for validating the suitability, fitment, performance, and regulatory compliance of custom products for their intended applications, except where Hein Dynamics has expressly agreed in writing to perform such validation.

Hein Dynamics remains responsible for meeting the specifications, acceptance criteria, and other obligations expressly agreed upon in writing, subject to the terms of the applicable agreement and applicable law.

12.6 Customer-Provided Designs and Specifications

Hein Dynamics may manufacture products using customer-provided drawings, measurements, models, files, or other specifications.

To the extent permitted by law, Hein Dynamics is not responsible for failures caused solely by inaccurate, incomplete, or unsuitable customer-provided specifications where Hein Dynamics has not expressly undertaken responsibility for their design or validation.

This provision does not exclude responsibility for manufacturing defects, deviations from approved specifications, or errors attributable to services performed by Hein Dynamics.

12.7 Limitation of Indirect and Consequential Damages

To the maximum extent permitted by applicable law, neither Hein Dynamics nor the customer shall be liable to the other for indirect, incidental, special, exemplary, or consequential damages arising from the applicable transaction, including lost profits, lost revenue, loss of production, business interruption, or loss of business opportunities.

This limitation applies regardless of whether such damages were foreseeable or whether a party was advised of their possibility, except where the limitation is prohibited by law or expressly excluded under Section 12.9.

12.8 Maximum Aggregate Liability

To the maximum extent permitted by applicable law, Hein Dynamics' total aggregate liability arising from a particular service, repair, or manufacturing order shall not exceed the greater of:

  • The total amount paid or payable by the customer for the specific order giving rise to the claim; or

  • $1,000.

This limitation applies to claims arising from the same transaction or occurrence, regardless of the number of claims or legal theories asserted.

The limitation does not apply to the categories of liability identified in Section 12.9 or where a different limitation is expressly agreed upon in a separately executed written agreement.

12.9 Exceptions to Liability Limitations

The exclusions and monetary limitations in Sections 12.7 and 12.8 do not apply to:

  • Fraud or intentional misconduct.

  • Gross negligence or other conduct for which liability cannot legally be limited.

  • Personal injury or property damage to the extent a limitation or exclusion is prohibited by applicable law.

  • Obligations expressly established under the Repair Workmanship Warranty in Section 8.

  • Any other liability or remedy that cannot legally be excluded or limited.

Nothing in this agreement is intended to waive rights or remedies that cannot be waived under applicable law.

12.10 Commercial Agreements and Purchase Orders

For commercial or business-to-business transactions, any separately executed written agreement expressly addressing liability, warranties, indemnification, insurance, or damages will govern those matters to the extent it conflicts with this section.

Terms contained in a customer's purchase order, acknowledgment, or other purchasing document do not modify these Terms & Policies merely because Hein Dynamics accepts the order, unless Hein Dynamics expressly agrees to those additional or conflicting terms in writing.

Any negotiated liability limitations, indemnification obligations, or insurance requirements must be documented in the applicable written agreement.

12.11 Warranty and Other Remedies

The Repair Workmanship Warranty described in Section 8 remains in effect according to its stated terms.

Any additional product warranties, performance guarantees, or remedies must be expressly established in writing.

Nothing in this section limits rights or remedies that cannot be excluded under applicable law.

12.12 Severability

If any provision of this section is determined to be invalid or unenforceable, the remaining provisions shall continue in effect to the extent permitted by applicable law.

13. Updates to Terms

These Terms & Policies are effective September 18, 2026.

Hein Dynamics LLC reserves the right to update these terms periodically. Revised terms will be posted on our website with an updated effective date.

Unless otherwise agreed in writing, the terms in effect when a customer authorizes a service, approves a quotation, or places an order will govern that transaction.

Changes to these terms will not retroactively modify previously approved work, pricing, warranties, or other contractual obligations without the agreement of both parties.

Customers are encouraged to review the current terms before authorizing new services or placing additional orders. Acceptance of a new quotation or service agreement that incorporates the updated terms constitutes acceptance of those terms for that transaction.

14. Commercial / B2B Work

Hein Dynamics LLC provides design, repair, manufacturing, and related services to individual and commercial customers. The following provisions apply to business-to-business (B2B) engagements.

14.1 Quotations, Pricing & Production

  • Commercial projects are quoted based on the approved specifications, materials, quantities, scope of work, and intended application disclosed by the customer.

  • Volume pricing, repeat orders, and ongoing production arrangements may be negotiated individually.

  • Pricing, quantities, payment terms, and delivery requirements will be established in the accepted quotation, purchase order, or other written agreement.

  • Estimated lead times may vary based on order size, production capacity, material availability, and supplier schedules. Any expressly agreed delivery deadline will be governed by the applicable written agreement.

14.2 Customer Specifications & Product Suitability

Customers are responsible for providing accurate and complete drawings, measurements, specifications, and information regarding the intended application.

Customers are responsible for validating the suitability, fitment, performance, and regulatory compliance of products for their specific applications, except where Hein Dynamics expressly agrees in writing to perform such validation.

Hein Dynamics remains responsible for manufacturing products in accordance with the approved specifications and any expressly agreed acceptance criteria.

14.3 First-Article Approval

Where first-article approval is required, Hein Dynamics will submit a sample, prototype, drawing, or other agreed representation for customer review.

Customer approval of the first article authorizes production to proceed in accordance with the approved design and specifications.

The customer is responsible for reviewing the first article against its application-specific requirements, including fitment, dimensions, and performance, except where Hein Dynamics has expressly agreed in writing to perform that validation.

First-article approval does not relieve Hein Dynamics of its obligation to manufacture subsequent units in accordance with the approved specifications and agreed acceptance criteria.

14.4 Changes After Approval

Changes requested after approval may require revised pricing, additional materials, new tooling, additional testing, or updated delivery timelines.

Hein Dynamics will communicate any resulting changes to pricing or scope and obtain customer approval before proceeding with additional chargeable work.

Changes to an approved design or first article may require a new approval before production continues.

14.5 Downstream Use & Integration

Customers are responsible for determining whether custom products are suitable for integration into their equipment, assemblies, or commercial products, except where Hein Dynamics expressly agrees in writing to perform that evaluation.

To the extent permitted by applicable law, Hein Dynamics is not responsible for failures caused solely by improper installation, unauthorized modifications, misuse, or applications outside the approved specifications.

This provision does not exclude responsibility for manufacturing defects, deviations from approved specifications, or other obligations expressly accepted by Hein Dynamics.

14.6 Commercial Agreements

Any separately executed written agreement governing a commercial project will control to the extent its provisions conflict with these Terms & Policies.

Additional or conflicting terms contained in a customer's purchase order or purchasing documentation do not become binding solely through receipt or fulfillment of the order unless expressly accepted by Hein Dynamics in writing.

15. Payment Terms for Commercial Clients

15.1 Standard Payment Terms

Unless otherwise agreed in writing, payment for commercial orders is due upon delivery or completion of the approved services.

Hein Dynamics LLC may extend alternative payment terms, including Net 15, to approved commercial clients on a case-by-case basis. Alternative payment terms must be expressly confirmed in the accepted quotation, purchase order, or other written agreement.

15.2 Deposits and Progress Payments

Deposits or progress payments may be required for custom manufacturing, special-order materials, or larger production orders.

Any required deposit, payment schedule, and remaining balance will be specified in the approved quotation or written agreement.

Deposits will be applied toward the total order amount. Applicable cancellation and refund provisions are addressed in Section 9.

15.3 Invoicing and Payment Due Dates

Invoices will identify the amount due and applicable payment deadline.

For approved Net 15 accounts, payment is due 15 calendar days after the invoice date unless a different starting date is expressly agreed upon in writing.

Customers must notify Hein Dynamics promptly of any invoice discrepancies. A good-faith dispute regarding part of an invoice does not relieve the customer of the obligation to pay undisputed amounts by their due date.

15.4 Late Payments

If an invoice remains unpaid after its due date, Hein Dynamics may suspend new work, decline additional orders, or place future production on hold after providing notice to the customer, subject to any existing contractual obligations.

Any late fees, interest, or collection charges must be expressly disclosed and agreed upon in writing and are subject to applicable law.

15.5 Purchase Orders and Conflicting Terms

Pricing, quantities, delivery requirements, and payment terms will be established through the accepted quotation, purchase order, or other written agreement.

Payment terms contained in a customer's purchase order will govern only when expressly accepted by Hein Dynamics in writing.

Additional or conflicting purchasing terms do not become binding solely because Hein Dynamics receives a purchase order, issues an invoice, or fulfills an order, except as otherwise required by applicable law.

Where a separately executed written agreement establishes payment terms, that agreement will control.

By submitting a request, approving a quote, or using our services, you acknowledge and agree to these Terms & Policies.