Real solution.

“The tool we developed combines the two existing tools into a single unit,” says design engineer Richard Franks. “As the surgeon squeezes two handle pieces together, the ratchet tightens the screws.” The engineers produced a working polycarbonate ratchet strong enough to withstand testing on stainless steel set-screws and durable enough to survive an autoclave. In addition, says senior engineering manager Troy McDonald, “Surgeons are really rough on these prototypes while trying them out, so we have got to have tough material. FDM gave us the strength and durability we needed.”
“In general, it costs approximately KRW 1.5 million ($1,240) to outsource the production of a gearbox prototype. With the Stratasys Objet30 Pro, the maximum cost is KRW 400,000 ($330).”
Park Gyeon-seon i-Tork Controls
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