[nfrees114]

Hey Guys- So I'm trying to move my lead in/out on the finish pass of this pocket. The way it is now, the lead ins/outs are on the left side of the part. If I leave them like this when they plunge down they'll take out the walls of my part, inside and outside. I would like to move it to the upper left corner area or bottom left. I tried picking a new start point but it didn't work. Any suggestions? Will post picture in next post

[nfrees114]

<a href="http://s31.photobucket.com/albums/c397/nfrees/?action=view&amp;current=BobCADLeadIn.jpg" target="_blank"><img src="http://i31.photobucket.com/albums/c397/nfrees/BobCADLeadIn.jpg" border="0" alt="Photobucket"></a>

[nfrees114]

http://i31.photobucket.com/albums/c3...bCADLeadIn.jpg

Also, doing this on V24

[tc26]

Your first link requires a password.

[aldepoalo]

you ll need to use the contour feature. this allows you to set the start point and direction of the finish past on your pocket.

[nfrees114]

OK yeah I know what ur saying but u can't do that in the pocket feature correct? I'd have to do a "no finish" on the pocket and then do a separate profile. Although it always wants to do a finish contour when u do a pocket doesn't it? So how would u pull that out? Manually edit the code??

Sent from my Transformer Prime TF201 using Tapatalk 2

[nfrees114]

you ll need to use the contour feature. this allows you to set the start point and direction of the finish past on your pocket.

OK yeah I know what ur saying but u can't do that in the pocket feature correct? I'd have to do a "no finish" on the pocket and then do a separate profile. Although it always wants to do a finish contour when u do a pocket doesn't it? So how would u pull that out? Manually edit the code??

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[MikeTheG]

If you set the contour before you select the pocket geomtery , and choose the contour for the geometry of the pocket . The finish tool of the pocket will follow the start point of the pocket . Follow what AL said above.

Mike G
BobCAD-CAM

[The Engine Guy]

OK yeah I know what ur saying but u can't do that in the pocket feature correct? I'd have to do a "no finish" on the pocket and then do a separate profile. Although it always wants to do a finish contour when u do a pocket doesn't it? So how would u pull that out? Manually edit the code??

Sent from my Transformer Prime TF201 using Tapatalk 2

Hard to see from the small image but a couple of things, if you don`t want a finish cut with a pocket then you would just leave the Finish tool size at 0.00 then it won`t try to generate a finish toolpath.
You should still be able to set a "side allowance" amount to remove with your Profile feature if that`s the way you want to go.

However, as I said I can`t see your image very well but I`m wondering why you can`t simply use a circular Lead in for your finish cut, is it a problem with the amount of space is too limited to be able to do a circular lead in for the finish ? ?
Even if space is limited you should still be able to set the finish cut to a "Ramp" entry and that will start from any point you choose and automatically miss any islands you may have.

Failing that you could even leave a bottom and a side allowance on the pocket feature and then you could use a second pocket to finish off the first one and then you would be able to use a start point of your choosing as the second pocket would again only do a "rough" cut but at your chosen finish spindle speed and feed rates

If you can upload your file we can take a look at it for you.

P.S. See if the attached file helps any

Regards

[Malish]

I personally like doing it in 2 steps so you have better control over it. I would do the first pass as a pocket feature going to depth and leaving a side allowance of 0.03". Then I would do a profile feature to do the finish pass on the side allowance.

If you want to do a finish pass on the bottom you would have to do 2 pocket features.

I took the finish steps out of the operation list for all my pockets and profiles so it will not even ask it. I fell I have better control over each operation this way.

[MikeTheG]

Ok , Just to clear up , you can use a contour on the geomtery to be cut . Then just use pocket feature for both rough and finish . The pocket feature will look at the start point of the contour and use that for the start point of the finish pass. and if you are using at least V24 you can also use cutter comp( G41, g42) on it as well with different types of lead in and outs. You could do it seperatly with a profile , but seems like extra steps for something that is already there?

If you wanted to finish with the profile feature you dont have to remove tool for pocket pattern . Just set finish tool to zero and leave system tool checked this will eliminate the tool .

I like to think of the terms rough and finish as tool 1 and tool 2 . They are just names bobcad uses. Hopfully one day we can get thoses changed.

[aldepoalo]

I agree with Mike, but also found it interesting to use the the tool patter to remove the finish tool hadn't thought of that one before and I kinda like it.

I also agree that using a feature profile to finish the wall gives you more options.

Things to think about.

If you use the pocket feature with rough and finish, if you leave stock on the wall and floor the pocket finish tool will finish both.

If you use a pocket feature with 1 rough tool ( zero finish tool or use the tool pattern to remove the tool ) you could use multiple steps with a defined cut. This will allow you to run a skim pass at the bottom of your part finishing the floor.



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So your side allowance value would be for stock on the wall
The bottom allowance you would Zero as the defined depth cutting option would do a skim pass the the floor as a "finish" pass.

Otherwise how would you finish stock on the floor if your next feature is a profile...

[Malish]

To me the separate pocket, pocket, profile method makes more sense if you want to use different tools and/or are concerned about your lead in/out or size of your pocket.

I do this method since you can not do tool compensation with the 2D pocket function (that I know of). If you have a contour, doing them as separate features only takes a few more screens to go through, since you can pick the same contour for both. You can then do the pocket with a larger tool and use a plunge lead in/out, then switch to a new mill for the bottom finishing pass, and then do the profile for the sides using a finishing mill with compensation on.

It just all depends on how you want to do it and what control you want.

[aldepoalo]

You do have cutter comp options for the pocket feature. It is only supported in the finish pass.



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