Need help with sharp internal corner

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frank131313
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Need help with sharp internal corner

Post by frank131313 »

SharpInternalCorner.jpg
SharpInternalCorner.jpg
i try to do a rectangle with sharp internal corner with a V-bit 90deg ... or a 120 deg and the result is not perfect does someone can teach me ....?
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Leo
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Re: Need help with sharp internal corner

Post by Leo »

You MUST use the same cutter in the tool database when you create the toolpath as the actual cutter you use in the machine.
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frank131313
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Re: Need help with sharp internal corner

Post by frank131313 »

yes its what i do

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Leo
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Re: Need help with sharp internal corner

Post by Leo »

The preview picture looks good.

From the picture of the actual cut it looks like the V cutter is a different angle than the tool path generation.
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scottp55
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Re: Need help with sharp internal corner

Post by scottp55 »

What software runs machine?
Looks familiar, like a setting problem I've seen with people that have Mach3(of which I know nothing)?
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highpockets
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Re: Need help with sharp internal corner

Post by highpockets »

I agree with Leo, check your bit. Just because the label say 60° doesn't mean it is. Read this thread http://forum.vectric.com/viewtopic.php?p=13653
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frank131313
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Re: Need help with sharp internal corner

Post by frank131313 »

thank you ... i agree , i'm gonna check the angle ...

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TReischl
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Re: Need help with sharp internal corner

Post by TReischl »

Scott, I have been running Mach 3 about 10 years now and have never had it cause the problem shown.

That said, I have seen all sorts of problems when things got lose, or the bit was not as advertised, etc.

That is a new one on me?
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scottp55
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Re: Need help with sharp internal corner

Post by scottp55 »

Sorry Ted:(
It reminded me of Constant Velocity(??) settings where it would over run a corner at first?
My mistake.
scott
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Go instead where there is no path, and leave a Trail"
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TReischl
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Re: Need help with sharp internal corner

Post by TReischl »

Scotty, that could definitely happen. Decel set way too high and the machine slams into the corner, everything is stressed to the max and voila, overcut!
"If you see a good fight, get in it." Dr. Vernon Jones

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