Black Delrin square block CNC machining stock resting on a wooden workbench, surrounded by hand tools and sanding blocks. The solid acetal plastic block shows raw machined faces and surface marks typical of cut stock, highlighting its use for CNC fixtures, jigs, prototyping, and functional machining applications in a maker or small-shop environment.

Black Delrin Blocks: CNC Machining Square Stock - 35x35x100mm

$29.00
$29.00
Skip to product information
Black Delrin square block CNC machining stock resting on a wooden workbench, surrounded by hand tools and sanding blocks. The solid acetal plastic block shows raw machined faces and surface marks typical of cut stock, highlighting its use for CNC fixtures, jigs, prototyping, and functional machining applications in a maker or small-shop environment.
  • Black Delrin square block CNC machining stock resting on a wooden workbench, surrounded by hand tools and sanding blocks. The solid acetal plastic block shows raw machined faces and surface marks typical of cut stock, highlighting its use for CNC fixtures, jigs, prototyping, and functional machining applications in a maker or small-shop environment.
  • Black Delrin square stock block shown on a gridded cutting mat at an angle, displaying the long face and sharp edges of the acetal material. Surface texture and machining marks are visible, emphasizing dimensional stability, low friction plastic properties, and suitability for CNC milling, drilling, and fixture fabrication.
  • Black Delrin square block standing upright on a cutting mat, showing the square end face and uniform material structure. The solid acetal plastic construction is clearly visible, illustrating consistent density and clean cut faces ideal for CNC machining, jig making, and precision mechanical components.
  • Two black Delrin square blocks displayed against a neutral background, one horizontal and one vertical, showing clean geometry and sharp edges. This image highlights the material’s uniformity and form factor for CNC square stock, acetal fixture blocks, machining practice, and prototyping applications.
  • White CNC-carved bust mounted in a rotary fixture on a dark machine bed, with large text reading “Fabrication Services Available.” Promotes Aetherium Innovations custom fabrication, CNC machining, prototyping, and maker service work for parts, fixtures, and specialty projects.
  • Aetherium Innovations workshop bench with a Carvera Air CNC machine, Bambu Lab 3D printer, filament dryer, hand tools, and pegboard, with text reading “Need a quote? Message me for current lead times.” Promotes custom fabrication, 3D printing, CNC, and project quote services.
  • Black Delrin square block CNC machining stock resting on a wooden workbench, surrounded by hand tools and sanding blocks. The solid acetal plastic block shows raw machined faces and surface marks typical of cut stock, highlighting its use for CNC fixtures, jigs, prototyping, and functional machining applications in a maker or small-shop environment.
  • Black Delrin square stock block shown on a gridded cutting mat at an angle, displaying the long face and sharp edges of the acetal material. Surface texture and machining marks are visible, emphasizing dimensional stability, low friction plastic properties, and suitability for CNC milling, drilling, and fixture fabrication.
  • Black Delrin square block standing upright on a cutting mat, showing the square end face and uniform material structure. The solid acetal plastic construction is clearly visible, illustrating consistent density and clean cut faces ideal for CNC machining, jig making, and precision mechanical components.
  • Two black Delrin square blocks displayed against a neutral background, one horizontal and one vertical, showing clean geometry and sharp edges. This image highlights the material’s uniformity and form factor for CNC square stock, acetal fixture blocks, machining practice, and prototyping applications.
  • White CNC-carved bust mounted in a rotary fixture on a dark machine bed, with large text reading “Fabrication Services Available.” Promotes Aetherium Innovations custom fabrication, CNC machining, prototyping, and maker service work for parts, fixtures, and specialty projects.
  • Aetherium Innovations workshop bench with a Carvera Air CNC machine, Bambu Lab 3D printer, filament dryer, hand tools, and pegboard, with text reading “Need a quote? Message me for current lead times.” Promotes custom fabrication, 3D printing, CNC, and project quote services.
Black Delrin Blocks: CNC Machining Square Stock - 35x35x100mm

Black Delrin Blocks: CNC Machining Square Stock - 35x35x100mm

$29.00
$29.00
Shipping calculated at checkout.

In stock: 1-3 business days

Delrin was developed to solve a specific problem in modern manufacturing: how to create precise, repeatable mechanical parts without the friction, corrosion, or variability of metal. Introduced in the mid-20th century as an engineering thermoplastic, it quickly became a staple in machinery, automation, and industrial design.

You’ll find Delrin in gears, bushings, wear strips, guides, fixtures, and moving components across factories, workshops, and machines that run continuously. Its low friction, dimensional stability, and moisture resistance made it a quiet backbone of modern mechanical systems.

Delrin machines cleanly and predictably, which is why it’s often chosen for fixtures, setup parts, and functional prototypes. It holds tolerances well, resists deformation under moderate load, and provides clear feedback during cutting, making it a reliable material for developing processes before committing to metal or production-grade components.

This plate is supplied as solid black Delrin intended for machining or fabrication. It is not coated, polished, or surface-treated.

Size: 35x35x100mm

For the Modern Maker
Ships from the Pacific Northwest, USA

Every order supports Aetherium Innovations and our mission to develop tools and technologies that lower the barriers in the skilled art trades.

Bench-tested

Modular by design

Direct builder support

Pacific Northwest built

Build & Support

Aetherium products are developed around real workshop and field workflows. If you need dimensions, compatibility guidance, replacement components, or help adapting this product to your setup, contact the workshop before ordering.
Shipping & Returns

The production estimate shown near the purchase button is the current working lead time for this item. Shipping is calculated at checkout.

If an order arrives damaged, does not match what you received approval for, or you need to request a return, contact us with the order number and photos when applicable. We will review the situation directly and help determine the right next step.

Complete the system

Why Aetherium

Built like someone has to use it.

We design around real workflows, direct feedback, and the belief that a good tool should expand what its owner can do.

Bench-testedDeveloped around real workshop problems, not trend forecasts.
Small-batchProduced deliberately with clear lead times and direct accountability.
AdaptableModular, repair-minded systems designed to evolve with the work.
Direct supportCompatibility question? You can talk to the person who built it.
Unsure whether this fits your setup?Send the workshop a photo or a short description before you order.
Ask a compatibility question