[Jewelry making - Article 00373] - Re: [Orchid] Techno X handpiece problems

[JohnCranor]

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    Here are my thoughts on operating the collet lever while the motor
    is still rotating: Do not use the handpiece lever to slow down the
    motor unless you know the handpiece was designed for that, most are
    not. The original Tecno-X, the blue Tecno handpiece made in the US,
    the Swiss made Tecnique, the 180/00, and Grobet Q40 are specifically
    designed for this and they have a thrust bearing that is engaged
    when the lever is moved to the open position. The Faro, Pfingst AC
    (made by Faro), Foredom 10 (made by Faro), Foredom 18, new style
    Grobet quick change handpiece, and most others are not designed to
    open the collet while the motor is still rotating. If you try to
    open the collet and use the lever as a brake, expect to eventually
    replace a twisted or broken duplex spring, worn down cam, or worn
    down pressure sleeve (not covered by any product or repair
    warranty). 

John
The Jewelry Equipmentdr

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