A biomedical device model - help needed

[usst1]

Hi All,

I am establsihing a biomedical device model using SP. The device is composed of three parts: base, lid and protection cover. The base is unmovable, the lid and protection cover should be lifted up a little bit and rotated CCW. However, I cannot let the lid move by adding a hinge connector. Anybody can help me on that?

Thanks so much!
USST

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the model

[pilou]

Just modify the discs as you want

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disc.skp

[ashscott]

I don't fully understand the question......