Machsupport Forum

Third party software and hardware support forums. => SmoothStepper USB => Topic started by: elpablito on August 30, 2009, 01:43:46 AM

Title: Is there a way of feedholding faster with SS?
Post by: elpablito on August 30, 2009, 01:43:46 AM

Hi,

Im doing some bench tests on SS and Match before installing on a real machine.
Running a simple demo code I have noticed that it takes the SS 3 or 4 seconds to feedhold when I press the button.
Watching the SS data monitoring window It seems that it empties the buffer before entering hold state.

Is there a way of telling SS to flush the buffer so it holds immediately?
Are there any OEM codes or commands that are specifc for SS?

Thanks

Title: Re: Is there a way of feedholding faster with SS?
Post by: Dan13 on August 30, 2009, 08:37:46 AM

What do you have set for controller frequency? Try setting it at 2MHz, it should then take only about a second for the feed hold to take effect. 4MHz frequency will reduce the response time even further.

But in general Greg is about finished a new plugin which will return the feedhold (as well as FRO) back to Mach and thus making it instantaneous like with the PP.

Daniel

Title: Re: Is there a way of feedholding faster with SS?
Post by: elpablito on August 30, 2009, 07:24:02 PM

Hi Daniel,

Thanks for your reply.

Youre right, with the controller frequency set at 2KHz the buffers empties in about a second. With 4Khz I get USB errors.
However Ill be waiting for Gregs upgrade because I would feel more confortable with a deterministic feedhold.

Thanks Again
Pablo