Walnut Shell vs Corncob: How to Choose Dry Tumbling Media for Eyewear, Jewelry & Hardware Dry finishing media selection guide • Walnut shell & corncob • For dry tumbling, vibratory and centrifugal lines Dry organic media — crushed walnut shell and ground corncob — is the workhorse of dry tumbling and dry vibratory finishing. The two materials look similar in the bag, but they behave very d...
Centrifugal Disc vs Centrifugal Barrel Finishing: Which High-Energy Machine Fits Your Parts? High-energy mass finishing comparison • Centrifugal disc & centrifugal barrel • Machine selection guide When vibratory finishing is too slow or too gentle for the result you need, the next step up in intensity is a centrifugal disc or a centrifugal barrel machine. Both multiply the effective force betw...
Mass Finishing for 3D Printed Parts: Deburring and Polishing Additive Manufacturing Components Additive manufacturing post-processing • Deburring, smoothing & polishing • FDM, SLA/DLP, SLS & metal AM parts 3D printing turns out parts close to final shape, but almost never close to final surface. Support scars, layer lines, partially fused powder, and sharp edges stand between a fresh print...
Steel Media Burnishing Guide: How It Creates Mirror Shine and When Not to Use It Steel finishing media • Pins, balls & discs • Burnishing process, compound pairing and limits Steel media is unique in mass finishing: it is the only media that polishes almost entirely without cutting. Hardened stainless pins, balls, and discs rub against parts under compound pressure, compressing micro-peaks int...
How Acetate Eyewear Frames Are Mass Finished: From Tumbled Matte to Mirror Gloss Acetate frame polishing workflow • Barrel tumbling + bench touch-up • A repeatable process for eyewear production Freshly milled acetate frames come off the CNC looking chalky, with tool marks along the bevels and matte hinge seats. Turning them into the deep, wet-look gloss that defines premium eyewear is a staged pr...
Mass Finishing Aluminum Parts: Deburr, Smooth and Brighten Without Smearing Aluminum surface finishing • Media, compound and cycle selection • From CNC parts to cosmetic components Aluminum is one of the most rewarding — and least forgiving — metals to mass finish. It deburrs fast, smooths beautifully, and polishes to an attractive satin-bright look. But it also smears under aggressive media, stai...
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