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Guidelines for Tumbling Services

Before using our tumbling services, read through our guidelines to make sure your file is set up for success.
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Pricing and Order Information

Starting at $25 cart minimum and $1.25 per part

Tumbling prices start with a $25 cart minimum and $1.25 per part. No minimum quantities are required! Bulk discounts begin when you add at least one identical part! Upload your file below to get a free instant quote.

 

Materials Available

Tumbling is available on a variety of materials at a minimum of 0.125″ thickness

5052 H32 Aluminum

Inexpensive, lightweight, & versatile material.

6061 T6 Aluminum

Perfect for aerospace & automotive applications.

7075 T6 Aluminum

Extra strong. Perfect for aerospace panels..

AR400

Abrasion resistant & incredibly durable.

AR500

Harder and more impact-resistant than AR400.

1075 Blue Temper Spring Steel

Brass

Attractive metal for use in decorative projects.

4130 Chromoly

A perfect choice for applications that demand high strength.

Copper

Perfect for electric components & architectural elements.

Mild Steel

One of our most popular & inexpensive materials.

304 Stainless Steel

Our favorite metal for durable and decorative parts.

316 Stainless Steel

Greater resistance to the elements than 304 stainless

Grade 2 Titanium

Super strong with added corrosion resistance.

Grade 5 Titanium

Ultra-high strength-to-weight ratio.

Geometry Requirements

As with all of our services, parts must meet certain requirements to qualify for tumbling. 

Minimum parts size:  0.5″ x 1.5″ 

Maximum part size:  4″ x 7″

Material minimum thickness: 0.125″

These are general size requirements for tumbling. Please keep in mind that thin or fragile parts are not ideal for tumbling and may bend during the tumbling process. For thin and fragile parts, linear deburring is ideal. We offer linear deburring on qualified parts free of charge.

File Setup

If after reading these guidelines you’ve found you need to make some changes to your part design, check out our tutorials for designing and preparing your files in Illustrator, Inkscape, and Fusion 360.

What to Expect From Finished Parts

  • Fragile geometry is not recommended, unsupported pieces will bend during the tumbling process
  • We cannot guarantee a consistent and uniform finish, especially between separate orders.
  • Edge softening cannot be precisely controlled.
  • Holes and interior cutouts smaller than 1/2″ will not be processed completely.
  • The finish will not be cosmetically perfect. This process is for deburring and edge softening only.
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Pre-flight Checklist

  • File is in a format that we accept (2D: .dxf, .dwg, .ai, .eps; 3D: .step or .stp)
  • All holes and cutouts are at least 50% material thickness for laser cut parts
  • All holes and cutouts are no less than 0.070” for most waterjet cut parts
  • All holes and cutouts are no less than 0.125” for all CNC routed parts
  • File is built at a 1:1 scale, preferably in inch or mm units
  • All objects are on the same layer
  • All stray points, duplicate lines, empty objects and text areas have been removed
  • No shapes have open contours
  • All shapes have been united, combined or merged
  • All text has been converted to outlines or paths
  • Cut-out text (reversed text) has bridges or has been stencilized

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Upload your CAD design or use our parts builder and get a free instant quote on your custom laser cut parts, all delivered to your door in a matter of days.
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View More Guidelines

Laser Cutting

CNC Machining

Waterjet Cutting

Anodizing

Bending

Countersinking

Hardware

Plating

Powder Coating

Tapping

Tumbling

Drill Size Reference Chart

We proudly use hardware by PEM

Flush stud, M8 x 1.25, .472" Zinc plus Clear Chromate

SKUFH-M8-12
Thread SizeM8 x 1.25
Hole size in sheet (+0.003/-.0.000).315″
Minimum sheet thickness0.94″
Maximum sheet thickness.347″
Fastener materialSteel
Minimum distance hole C/L to edge0.378″
When determining the distance between two or more fasteners, you can calculate the distance by the formula, C/L to edge + 1/2 the diameter of the second mounting hole..535″
Recommended panel materialSteel/Aluminum
Coating typeZinc
Length.472″
Aluminum material ranges (5052, 6061, 7075)0.100″-0.250″
Steel material ranges (CRS, HRPO, HR)0.104″-0.250″

Get an Instant Quote for Waterjet Cutting

  • Upload a file format we accept (2D: .dxf, .dwg, .ai, .eps; 3D: .step or .stp)
  • Text should be converted to object and bridged where needed
  • All holes and cutouts should be at least 50% material thickness and no less than 0.070”
  • Bridging and webbing chould be at least 1:1 to material thickness
  • Files should only contain your parts/cut-paths
  • Files should not contain any intersecting lines or open contours
VIEW Waterjet Cutting GUIDELINES
UPLOAD MY FILE

We proudly use hardware by PEM

Flush Standoff, 4-40, .250" Zinc plus Clear Chromate

SKUSO-440-8
Thread Size4-40 x .250″
Hole size in sheet (+0.003/-.0.000).168″
Minimum sheet thickness0.040″
Maximum sheet thickness.125″
Fastener materialSteel
Minimum distance hole C/L to edge0.230″
When determining the distance between two or more fasteners, you can calculate the distance by the formula, C/L to edge + 1/2 the diameter of the second mounting hole..314″
Recommended panel materialSteel/Aluminum
Coating typeZinc
Length.250″
Aluminum material ranges (5052, 6061, 7075)0.040″-0.125″
Steel material ranges (CRS, HRPO, HR)0.048″-0.119″