Mounting a Sparkfun PS/2 Trackball

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Mounting a Sparkfun PS/2 Trackball

Postby degenatrons » Wed Mar 27, 2013 11:15 pm

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I came up with a neat way to mount a Sparkfun PS/2 trackball into my 12mm thick control panel.

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I cut a 50mm hole in my control panel top using a hole saw.

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I route the hole slightly on both sides using a rounding bit to give a smooth edge.

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Here's the trackball

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I want to discard the top part of the casing. I use a flat head screwdriver to open the trackball.

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The top pops off.

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The trackball has 2 connected cables.
1) The PS/2 cable
2) Wiring for 3 buttons.
The connectors can be unclipped. This is useful if you don't want to use the 3 extra buttons that the trackball supports. The trackball buttons are compatible with KADE, so i'll leave them connected.

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The ball sits on top of rollers and can be lifted off.

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The top of the trackball case is 12mm thick - same thickness as my MDF :)

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So trackball will mount under the control panel

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Like this

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The encoder wheels are the same height as the mounts, so I will need to use a washer on the mounts to give wheels room to turn.

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I use a little hot glue under the washers to stop them from moving out of position.

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Trackball is secured in place with 50mm long screws

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Here's a side view

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Other controls fitted to panel.

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Trackball lights up when it is powered up. Nice. It changes colour too when connected buttons are pushed. Not bad for a $15 trackball eh?

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That's it.
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Re: Mounting a Sparkfun PS/2 Trackball

Postby degenatrons » Sun Mar 31, 2013 11:08 pm

I forgot to mention that the lid used upside down provides a perfect template for the screw holes. This helps to align the trackball dead centre of the hole.

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Re: Mounting a Sparkfun PS/2 Trackball

Postby ballsrawls » Wed Nov 27, 2013 7:51 pm

thank you for this post. it was very helpful.
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