Re: [CAD_CAM_EDM_DRO] G Code questions

If you use an arc cutting routine in a sub routine and use cutter dimeter
compensation for each of the 6 cuts in another sub routine, you can do the
whole job with very few lines of code. This way you would only need to
specify the cutting radius (the final radius) one time.

Smoke

>It's the same arc done over 6 times, then rotate the part 60 degrees around
>the Z axis and do another arc 6 times. I do need the radius to change as
>the cutter increments .003 so shifting the Z axis won't work. I'm using a
>ball shaped cutter.
>
>Where can I find a sample of a sub-routine program that will run on EMC? I
>can't find any documentation that shows the proper way to do this.
>
>Thanks.
>
>Ethan
>
>
>-----Original Message-----
>From: Alan Marconett KM6VV [SMTP:KM6VV@...]
>Sent: Thursday, August 09, 2001 1:31 PM
>To: CAD_CAM_EDM_DRO@yahoogroups.com
>Subject: Re: [CAD_CAM_EDM_DRO] G Code questions
>
>Hi Ethan,
>
>Sounds like you might be programming by hand? I don't know what your
>part looks like, but I take a stab at your question. Are your arcs
>connected together, possibly with linear sections, such that there is a
>"contour" or continuous (more or less) path around/through all of them?
>I'd suggest putting one "contour" in a subroutine, called 6 times;
>dropping Z by .003 each time.
>
>Sounds like you've come to the right place to me!
>
>Alan KM6VV
>
>
>Ethan Vos wrote:
>>
>> I need to cut and arc of about 55 degrees with 4 or 6 passes of .003
>each.
>> There are six of these arcs per part, so 36 passes.
>>
>> Is there a repetitive cycle that will do arcs?
>>
>> If not, I think it would be possible to redo the same arc 6 times, but
>> decrease the tool radius compensation by .003 to get the desired result.
>Is
>> there any way to do this with sub-programs and counters rather than
>writing
>> the same code 36 times?
>>
>> Can I program using start angle, end angle, radius and center point (0,0)
>> rather than end points? I have the angles but not the positions and I
>want
>> to fool with the angles. It would be a lot more complicated for me to use
>> end points because of all the extra calculations.
>>
>> And last, but not least, is this the proper forum for these questions, or
>> is there another list I should belong to?
>>
>> Thanks.
>>
>> Ethan
>
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