Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: Keith on June 08, 2006, 06:25:19 PM

Title: Scaling
Post by: Keith on June 08, 2006, 06:25:19 PM

Hi,I've never used scaling in Maach3 and I'm a little burnt out at the moment so ; 1+scale is 100%.Let's say I want to shave .003" x and y on a rectangle with fillet'ed corners...I want it all down by that... so do I figure out the percentage that .003" is of one of the lengths of the rectangle and then subtract that from 100% and scale the scale number down accordingly?-Keith

Title: Re: Scaling
Post by: Brian Barker on June 08, 2006, 06:40:17 PM

Scaling will only work to do that IF the rectangle's center is at x0 y0. Anything other th x0 y0 will result in a shift of the rectangle...

Title: Re: Scaling
Post by: Keith on June 08, 2006, 07:13:13 PM

It is!!!(at x0,y0,that is).So I subtract that percentage and consider 1+ to be 100%(for instance length=1.2275";.003"=.24%,width=.8775" ; .003"=.34%... so xscale =99.76? y scale=99.66%?) Or have I lost my marbles completely?-Keith

Title: Re: Scaling
Post by: Keith on June 08, 2006, 07:14:50 PM

Sorry, I mean scale x=.9976 ,y=.9966  ...is that correct?

Title: Re: Scaling
Post by: Keith on June 08, 2006, 08:04:46 PM

Okay,well if my calculations weren't on the money,it sure seemed to work perfectly.I cut some 'air' above the vicinity and then 'went for broke' and I'm not complaining ,so it's all good.Thanks for looking in.-Keith

Title: Re: Scaling
Post by: Brian Barker on June 08, 2006, 08:51:34 PM

I didn't run the numbers but your 99.66 sounds just about right :) I understand where you got in trouble and I think you have a good understanding about how it works now!

Thanks
Brian