John Kasunich wrote:

>Kirk Wallace wrote:
>  
>
>>On Sun, 2008-08-24 at 21:20 +0300, Anders Wallin wrote:
>>    
>>
>>>I am using position-mode, and I am guessing that Jon is too.
>>>Bug or not, it is surprising behavior to the MPG/EMC2 user (perhaps
>>>not to the EMC2 developer...).
>>>      
>>>
>>I don't think the computers geeks came up with this to torment the the
>>chip jockeys. There is a clear basis for having this MPG behavior.
>>    
>>
>>>For me I think I imagine the cnc-machine as a manual mill when using the 
>>>MPG. I imagine myself turning the handwheel on a manual mill and it is 
>>>surprising because the machine keeps moving after I have stopped turning 
>>>the wheel. It would also be safer if the machine stopped when the wheel 
>>>stops.
>>>      
>>>
>>It would be safer to have the machine operator know the proper use of
>>his/her tools.
>>
>>Please, don't take this as being insulting. I am just trying to clarify
>>my position on this matter.
>>    
>>
>Nobody should be insulted.  We had this debate about a year or so ago,
>and "velocity mode" was the result.  Instead of debating it, each person
>should try both modes and use the one they like best.
>  
>
Or even use both modes, depending on what they're doing.  Since the 
jog.counts inputs are ignored when axis.n.jog-enable is false, you 
shouyld be able to change modes while not moving the wheel and/or 
jogging is disabled.  So you could use vel mode to spin close to the 
right spot, then once you reach a base position, flip to position mode 
and dial in the number of "clicks" you want.

Note that position mode was the original implementation, and the mode 
where it stops when the wheel stops is the addidtion - this doesn't 
represent a change from the old behavior, it's an additional feature.

- Steve


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