Wednesday, 29 March 2017

...and in with the new?

I have some CNCdrives servo drives (160V / 35A) that can drive the DC servo motors directly, given the correct step / direction signals from the controller. Each drive is small enough to fit in your hand, whereas the original 3-axis system had 2 large racks, each large enough to house a small dog. 

Similarly, the new Yaskawa VFD is small enough to pick up with one hand, while the old VFD and braking unit were each the size of large shoe boxes. 

All in all, the new system is small enough to fit into the original console box, so that's the plan.

First I modified the original support arm that held the original telly. It used to be mounted on the top of the cabinet but that's down the road now. This looks good:



Looks as if it should fit in the old telly box nicely:


The old VFD was stripped down and donated a large finned heatsink that can be reused for the servo drives. It pokes out the back of the console unit.


A little bit of work needed now to fit everything into the box and connect it all up.....

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