# Machsupport Forum

## Mach Discussion => General Mach Discussion => Topic started by: rrc1962 on November 21, 2010, 11:51:20 AM

Title: Unit of measurement for accelleration
Post by: rrc1962 on November 21, 2010, 11:51:20 AM
On motor tuning when you set acceleration of say 50, what unit of measurement is that?  I think it's ??/sec, but I can't remember.

Thanks
Title: Re: Unit of measurement for accelleration
Post by: Hood on November 21, 2010, 12:57:10 PM
It is units (mm or inch) per second per second.
Hood
Title: Re: Unit of measurement for accelleration
Post by: rrc1962 on November 21, 2010, 01:16:19 PM
Can't seem to get my head wrapped around it.  How would to write it out as a mathematical formula if the accell were 50 and the velocity were 500?  What I'm trying to do is come up with the time it takes to accelerate from 0 to 500IPM with an acceleration setting of 50.

Thanks
Title: Re: Unit of measurement for accelleration
Post by: Hood on November 21, 2010, 02:03:07 PM
Oh man its a Sunday evening here, my brain struggles to work at the best of times let alone Sundays ;D
Ok so acceleration = velocity/time
so Vel/Accel = time
Velocity = 500IPM so divide by 60 to get Inch per second = 8.333333333
Accel = 50 inch/s/s
so
8.33333/50 = 0.16 seconds

Hope thats right ::)

Hood
Title: Re: Unit of measurement for accelleration
Post by: rrc1962 on November 21, 2010, 02:22:55 PM
Thanks very much Hood.  Makes sense now.