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By cncworkdork

August 16, 2013, 1:19 pm

minimum RPM

I love this calculator. I run a table router and this is a life saver any time I cut something new (which is about twice a week). The only thing that would make it better for me is if it had a high AND low rpm limit. My spindle bottoms out at 4000rpm and I'm not sure how to approach a recommended feed rate when the recommended speed is below this.

cant leave messages here
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Eldar Gerfanov (Admin)

August 16, 2013, 2:59 pm
Updated by: Eldar Gerfanov (Admin)August 16, 2013, 3:01 pm

Hi. Thanks!
Minimum RPM is right now available on HSMAdvisor- the standalone version.
Online FSWizard does not yet have it. i will add it to the pipeline

As a fix you can play with SFM override until it hits your desired RPM.

After i sort out some things there will be a major rewrite of the online version. This feature will be included as well.



May 28, 2022, 5:25 am

I was just searching for this exact topic. I have a Shapeoko HDM, and min speed is 8000

I've been just interpolating and adjusting the feedrate to get a desired chip load.

one problem is the spindle doesn't have the horsepower to get too carried away, so I end up opting for a thinner chip.

I'm guessing since this is a 9 yr old topic, there is no intention to add the enhancement?


Eldar Gerfanov (Admin)

June 5, 2022, 6:00 pm


This was requested about 2 times in these 9 years, so... I will add it eventually when I add machine profiles. But at this time there is no definite timeline. I got too many things on my plate.

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