[Bdi4emc-help] configuring ini file

Fri Dec 1 18:00:59 CET 2006

Thank you, David!
But how do I set up inputs from home switches and limit switches?
Alex

David Szakovits wrote:

> alex,
>
> i asked almost the same question a couple weeks ago.  this is a copy 
> of what paul sent me.  it was so useful that i am forwarding his 
> instructions to you.   it is all the documentation i needed.  
> following this advice, my scale factors were off by a factor of 10, 
> exactly.   so it was obvious and easy to remedy.
>
> Using a config that is known to work as a starting point is probably 
> best. The /usr/local/emc/mill_inch_freq.ini is as good a choice as any 
> with the added advantage of being linked to a desktop icon. The first 
> set of parameters that will need changing will be OUTPUT_SCALE and 
> INPUT_SCALE to match the stepper motors & feedscrews. Assuming a 1:1 
> gearing, no step multipliers in the Gecko drives, and standard 200 
> steps/rev motors, the correct number would be: TPI * 200
>
> Once the scales have been set, you can play around with the velocity 
> and acceleration parameters - A general rule of thumb here is the max 
> velocity can be found by taking 1/([EMCMOT]PERIOD * OUTPUT_SCALE) 
> divide by five so that you don't trigger following errors at high speed..
>
> Once you have found the maximum accelerations and velocities, turn 
> them down to the lowest values that are acceptable - You are tuning 
> for longevity not the fastest way to wear out a machine.
>
>
> If you wish to sidestep tuning of PID parameters, change the EMCMOT 
> driver from freqmod to quickstep.
>
>
>
>
>
> alex wrote:
>
>> Hi, folks!
>> I was able to install latest BDI with great success!
>> I have a 4 axis machine, a punch press.
>> All axes are linear.
>> How do I set up an ini file, were can i find a manual for this?
>> Can I use a sherline inch EMC - it looks great!
>> Alex
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>
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