Schaublin 125-CNC retrofit.

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5 years 7 months ago #204048 by andypugh
Replied by andypugh on topic Schaublin 125-CNC retrofit.

RotarySMP wrote: Given the same price and size, to drive this 3kW motor, would you take the 5.5kW VFD ans derate it, or take the 3kW VFD?


An oversized VFD is never a problem, you can always reduce the max current.
But if it is undersized for the motor (and some older motors take a huge current at zero speed) there is no way round it.

If they really are the same price and size, then it's an easy decision.

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5 years 7 months ago #204050 by andypugh
Replied by andypugh on topic Schaublin 125-CNC retrofit.

RotarySMP wrote: Yeah, when I get to that point, I'd have to measure my tables slots. Look forward to seeing your video on pattern making, and then machining the raw casting.


Pattern-making is boring. I just 3D printed it.

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5 years 7 months ago #204070 by RotarySMP
Replied by RotarySMP on topic Schaublin 125-CNC retrofit.
Photos or it didn't happen :)

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5 years 7 months ago #204083 by andypugh
Replied by andypugh on topic Schaublin 125-CNC retrofit.

RotarySMP wrote: Photos or it didn't happen :)


photos.app.goo.gl/CLKFsGmoafNsNAHy8
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5 years 7 months ago #204097 by RotarySMP
Replied by RotarySMP on topic Schaublin 125-CNC retrofit.
Nice.

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5 years 6 months ago #204724 by RotarySMP
Replied by RotarySMP on topic Schaublin 125-CNC retrofit.
I put it off long enough. Time for workshop tetris.


Enjoy.
Mark
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