Re: [CAD_CAM_EDM_DRO] "nice numbers" for lead, window EMC dual boot, and the gotcha's

"David E. Queen" wrote:

> I have just been looking thru McMasters catalog, I found a good price on a
> rolled ballscrew, but its 13/64 pitch.
>
> Does the pitch matter much when your doing cnc on EMC? I would think you
> would just tell it how much it moves per step or something and it would
> convert that needed movement to x steps. It a lot harder for a human to a
> .875 move at 13/64 per turn.

No, it really isn't 13/64, which is about .203".. it really is a 5 TPI thread,
but
some idiot at mcMaster Carr decided it needed to have a fractional inch
lead. But, if the lead were really that odd number, EMC would do fine, anyway.

All calculations are in floating point, throughout the code.

>
> I also wonder if the BDI of EMC allows for dual boothing on a PC with
> Windows on it already.

EMC and Linux can handle it, but the BDI install procedure won't.

Jon