Machsupport Forum

Mach Discussion => General Mach Discussion => Topic started by: Bill_O on January 19, 2011, 05:24:02 PM

Title: s curve control board
Post by: Bill_O on January 19, 2011, 05:24:02 PM

I need a control board that does s curves.
I am running 2 x axis servos. (Currently get same step and direction input), 1 y axis servo, 1 z axis servo, 1 rotary atc servo and spindle speed control.
Need some suggestions from anyone.

Thanks, Bill

Title: Re: s curve control board
Post by: kf2qd on January 20, 2011, 02:19:37 PM

Why???

I have done some machine building and S-Curve accel is not always better.

Title: Re: s curve control board
Post by: Bill_O on January 20, 2011, 02:30:08 PM

the gantry is almost 3000lbs
the head is 700lbs
it needs the s curve moves

bill

Title: Re: s curve control board
Post by: BR549 on January 22, 2011, 02:23:40 PM

Bill I think you are going to have to find a "controller" that does Scurve trajectory from the planner (Mach currently  does not).

(;-) TP

Title: Re: s curve control board
Post by: Tweakie.CNC on January 23, 2011, 03:39:18 AM

A lot of work was done on the acceleration curve and slope in the excellent Tempest Trajectory planner which now appears to be an abandoned project. Shame really because it was much faster at 2.5D work and allowed higher accelerations without stall on my router.

From reading other threads I think Bill_O is on to this already.

Tweakie.