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Hey group, I have a question for the
masses.
Whenever I machine a slot, the
sides tend to be on size, but the length is short. So I have routinely
slowed down the cutter feed rate at the end of the slot to compensate for the
short programmed path, as compare to the feature.
ie) Mill a 1/2 slot, full end
radii, with a 3/8 end mill, the programmed path end radius is only .0625 when
programming to tool center. I never really had a formula for the amount to
reduce the feed rate, but have seen it now explained as the cutter path rad.
divided by the feature radius, times the feedrate.
ie) .0625/.25=.25 factor.
.25 x 20 ipm=5ipm for end radius, then back up to 20ipm for
the straight away, just like nascar.
OK, fine, this seems logical enough for a formula,
tho if anyone else has a better one, I would love to hear it.
NOW THE QUESTION....
Is there a way to make smartcam
do this calculation for me whenever the factor value is .... say, under
.50?
This would eliminate all the feed rate changes and
returns in the shape file, making it just simply the geometry to program.
If not a template section, what about a macro to
adjust feed rate down a percentage, then return it, from picking only a single
element?
This isn't the most pressing
issue, just trying to further my limited intelect (sp) dang, as if I have much.
Thanks group
Jon Baker
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- Re: [mfg-smartcam] Feed rate adjustments? Jon Baker
- Re: [mfg-smartcam] Feed rate adjustments? Dave Hayden
- RE: [mfg-smartcam] Feed rate adjustments? Nix, Dan
- RE: [mfg-smartcam] Feed rate adjustments? Dave Hayden
