Inches at the moment since the screws are imperial. And 3.3 x 60 is almost 
200ipm.  So plenty of speed. 

Sent from John's iPhone 4S

On 2020-02-21, at 2:23 PM, Gene Heskett <[email protected]> wrote:

> On Friday 21 February 2020 17:02:13 John Dammeyer wrote:
> 
>> I'm confused about the acceleration parameters.
>> In the hal file.
>> setp stepgen.1.maxaccel [AXIS_1]STEPGEN_MAXACCEL
>> 
>> Which comes from the ini file.
>> MAX_VELOCITY = 3.3
>> MAX_ACCELERATION = 15.0
>> STEPGEN_MAXACCEL = 35.0
>> 
>> What I'm finding is if I do a G00 X5
>> It accelerates very quickly.
>> But if I use the jog buttons on the AXIS screen it takes a really long
>> time to get there.
>> 
>> It's even worse with the 4th axis.  Fairly quick with G00 A360 from
>> say 0 for one complete turn.  But it's not even up to speed by the
>> time one turn has been done.
>> 
>> These values aren't that much different.
>> MAX_VELOCITY = 180.00
>> MAX_ACCELERATION = 720.0
>> STEPGEN_MAXACCEL = 900.00
>> I'm missing something but where?
>> Thanks
>> John
> Are you running in metric or inches?. If inches, those accell's would be 
> too high, and is likely too quick even for metric.
> 
> The MAXVEL's are both pretty slow as those are either ipm's or degrees 
> per minute
>> 
>> "ELS! Nothing else works as well for your Lathe"
>> Automation Artisans Inc.
>> www dot autoartisans dot com
>> 
>> 
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> 
> 
> Cheers, Gene Heskett
> -- 
> "There are four boxes to be used in defense of liberty:
> soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> If we desire respect for the law, we must first make the law respectable.
> - Louis D. Brandeis
> Genes Web page <http://geneslinuxbox.net:6309/gene>
> 
> 
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