[joeavaerage]

Hi,
I use 750W Delta servos and I pay $438 plus shipping for them. I've bought four within the last year which including three day Fedex to New Zealand from Hong Kong,
costs $588USD per unit. Because they are such a common size there is a discount, they would ordinarily be about $550 plus shipping.
Would 750W (1hp) be enough?

Craig

[binfordw]

Hi,
I use 750W Delta servos and I pay $438 plus shipping for them. I've bought four within the last year which including three day Fedex to New Zealand from Hong Kong,
costs $588USD per unit. Because they are such a common size there is a discount, they would ordinarily be about $550 plus shipping.
Would 750W (1hp) be enough?

Craig

I currently have a 3/4hp dc brushed motor, and a controller that doesn’t modulate speed well. So with much load, it will slow, then ramp high, and repeat.

I’d assume a 3/4hp ac servo would still be a welcome improvement in all aspects.

First- I want to remove the high/lo gearset- it’s noisy as can be. With a 3k rpm servo and a direct belt drive to spindle, the noise would be a huge improvement. Plus, rpm would be similar/or possibly better depending on pulleys.

I’d like the option of enough power for rigid tapping at a later date if things went well, but, it’s not a big concern currently.