I will custom 3d lego design, 3d lego building, car moc, XML partlist and instructions

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moc_stud
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moc_stud
Harper

About this gig

I will design a professional custom LEGO Technic MOC with PDF instructions


Transform your engineering ideas into a masterpiece. I specialize in complex LEGO Technic designs, focusing on mechanical functionality, structural integrity, and aesthetic realism. 

From working gearboxes to remote-controlled supercars, I build digital models that are ready for the real world.


What you receive:

  • Custom Digital Model: A precision-engineered .io or .ldr file.
  • Pro PDF Instructions: Step-by-step building guides (Studio quality).
  • BOM / Parts List: XML/CSV files ready for instant Bricklink uploading.
  • Photorealistic Renders.


Why choose my service?

  • I don't just place bricks I design systems. Whether its a 1:8 scale supercar or an industrial machine, I ensure every gear ratio and pivot point works perfectly before delivery.


Feel free to message me before placing your order.

Delivery style preference

Please inform the freelancer of any preferences or concerns regarding the use of AI tools in the completion and/or delivery of your order.

Get to know Harper

Harper

A Professional Lego Designer

  • FromUnited Kingdom
  • Member sinceMay 2026
  • Avg. response time1 hour
  • Languages

    English, German, French
I am a professional LEGO designer specializing in high-complexity Technic models and custom MOCs. I bridge the gap between creative concepts and mechanical reality, turning your ideas into buildable, digital masterpieces. With a focus on structural integrity and realistic functionality, I provide a complete design package—from Studio-quality 3D renders to professional PDF building instructions. Whether it’s a 1:8 scale supercar or a motorized industrial machine, I deliver precision-engineered designs ready for Bricklink sourcing.