Why we automate sprue cutting, pin insertion and riveting
Three secondary operations decide whether a housing is reliable: trimming the gate, inserting the pins and riveting the spring contacts. Here is…
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Engineering notes
Short technical notes on mold design, injection molding and surface finishing, written by the engineers who run the tools.
Keeping a slide parting line below hand-feel
On a tall housing with side openings, the slide and the cavity run at different temperatures. Calculating the thermal growth of both…
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Zero-draft molding: what it takes to release a straight wall
A straight housing wall has no draft to help it leave the tool. Here is how we mold a 163 mm tall,…
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