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Premium Coffee Roasting Accessories

Precision-engineered upgrades for serious home roasters. Every product is designed, tested, and manufactured in-house using premium materials and professional-grade processes.

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Coffee Roasting Accessories

Workflow optimization tools and precision upgrades for home roasters.

Current Products:

Custom Fabrication

Custom 3D-printed solutions for your unique needs. Let me know what you need and we can go from there.

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Aillio Bullet R1 Bean Deflector - Heavy-duty ABS construction

Aillio Bullet R1 Bean Deflector

$20.00 + shipping

Don't cry over spilled beans. Precision-engineered deflector channels every bean cleanly into the cooling tray.

  • ✅ Premium Polymaker PolyLite ABS construction
  • ✅ Drop-in installation (<3 minutes)
  • ✅ No bean scatter
  • ✅ Heat-resistant ASA
  • ✅ Professional-grade dimensional accuracy (±0.03mm)
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Design Philosophy

Every product in this shop is built on three principles:

1. Solve Real Problems
No solutions looking for problems. Each accessory addresses a specific workflow pain point identified through hundreds of roasting hours.

2. Premium Materials Only
Engineering-grade materials with documented thermal, mechanical, and chemical properties. No generic commodity filaments or unknown-quality components.

3. Precision Manufacturing
Dimensional accuracy, consistent quality control, and rigorous testing. Professional-grade results, not hobby-level approximations.

Custom Fabrication Services

Need a specific part or modification for your roasting setup? I take custom requests for one-off fabrication and small-batch production.

What I can build:

  • Custom Bullet R1 accessories and modifications
  • Thermocouple holders and probe systems
  • Workflow tools and organizers
  • Replacement parts with improved specs
  • Prototype development for small businesses

Process:

  1. Consultation — Describe your problem/need (30-min call or detailed message)
  2. Design proposal — CAD mockup + material spec + quote (2-3 days)
  3. Prototype — First working unit for testing (1-2 weeks)
  4. Iteration — Refinement based on feedback (as needed)
  5. Production — Final parts delivered

Typical lead time: 1–2 weeks for design + prototype
Minimum order: 1 unit

Request Custom Fabrication → or email matt@mkcustom.work

Why Buy From MKK Design Craft?

🔬 Engineered, Not Guessed

Every design decision backed by material science, thermal analysis, and real-world testing. No compromises on specifications.

🏭 Professional Manufacturing

Premium name-brand materials (Polymaker, etc.), calibrated equipment, dimensional accuracy within ±0.03mm.

☕ Built by a Roaster

I use these products daily in my own roasting workflow. If it doesn't meet my standards, it doesn't ship.

🛠️ Iteration-Driven

User feedback directly influences design revisions. Version 2.0 of every product is already in planning based on real-world use.

Shipping & Policies

Domestic Shipping (US):

  • USPS First Class: 3–5 business days
  • USPS Priority Mail: 2–3 business days
  • Free shipping on orders $50+ (automatically applied)

International Shipping:
Available to most countries. Contact for custom quote.

Returns:
30-day return policy for unused products in original condition. Return shipping paid by buyer unless item is defective.

Warranty:
90-day warranty against manufacturing defects. Does not cover damage from improper installation, modification, or misuse.

Contact:
Questions about products, orders, or custom work? Reach out via Etsy messaging or email matt@mkcustom.work.

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