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pockets messing up
« on: December 19, 2009, 01:11:15 AM »
Hi.  I am trying to get a pocket to work.  Its a rather complex shape, but its not working at all. I have fiddles with all the settings and have had no luck.  All the radius are 1/16 and I plan on using a 1/8 endmill.   I will not create a pocket.  As shown in the blue the pocket is actually going beyond the chain and not filling into the inner island.  I tried a 1/16 end mill and it kept it inside the chain, but did only one sweep and did not fill the pocket.  I have played with the connection tollerances too.   Please help.   Screen shot attached.

Re: pockets messing up
« Reply #1 on: December 19, 2009, 09:02:47 AM »
Best to provide your DXF but try this. Label your 1/8" tool as Diameter .124 in the tool description and see what you get. LCam is weird when the tool and drawing radiusses match exactly.
Just a guess,
RC
Re: pockets messing up
« Reply #2 on: December 19, 2009, 11:02:39 AM »
That did not work either, did not create any entities...   DXF attached

Offline RICH

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Re: pockets messing up
« Reply #3 on: December 19, 2009, 11:11:51 AM »
There is more than one way to get the pocketing done. But attach the DXF as RC suggested.

RICH

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Re: pockets messing up
« Reply #4 on: December 19, 2009, 11:54:48 AM »
I want to look at and try try a few things with your file.
It will be later on today. Snow won't let me open the door........ so need to do a few things first before i can play.
It will pocket!

RICH
Re: pockets messing up
« Reply #5 on: December 19, 2009, 12:05:36 PM »
Thanks!

I tried this DXF too, same negative results.   I removed the 1/16 inside fillets that would be created by the endmil anyways to try to make it simplier. I kept the outside fillets because I need them as a relief.

I can draw in all the pockets manually, but that kinda takes the fun out of it...

Thanks!
Charlie
Re: pockets messing up
« Reply #6 on: December 19, 2009, 12:17:27 PM »
Curious to see what you find Rich, this is a strange one here.
The radiusses are actually .06 (by my CAD) instead of .0625 but a .119 cutter still doesn't work as it normally would.
The first file DOES however offset AND pocket well w/Sheetcam and Vectrics.
I gotta go dig out my truck.
RC

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Re: pockets messing up
« Reply #7 on: December 19, 2009, 03:50:04 PM »
RC,
Snow.....my opinion nowdays.......WHAT GOD PUT ON THIS EARTH LET HIM TAKE IT AWAY!  ;)
So we we got the first round of snow shoveled. Some requests are not answered!  ???

You may want to increase your unit precision in CAD and  then you will see that the radius is .0625.
I will post what i did to make it work.
RICH
Re: pockets messing up
« Reply #8 on: December 19, 2009, 04:09:44 PM »
Yup.....see that now, Thanks.
Never had THAT change before. Always at .0001, till now.
rc
« Last Edit: December 19, 2009, 06:06:49 PM by Overloaded »
Re: pockets messing up
« Reply #9 on: December 19, 2009, 04:33:49 PM »
I had drawn it with 0.63 so to try it with a slightly different fillet than the endmill to see if it had an effect.   Here is the file with the fillets in 1/16 increments, same result.  All the paths are big enough for a 1/8 endmill, which is what I drew this for.    I have been playing around with the overhang and finish with no results either, I am not sure what they do...   

Charlie