Pocket projection issues

[I. Anderson]

Hello everyone,

 

I am having a heck of a time projecting a pocket onto a simple radiused surface.

I am unable to get square corners and also unable to get my depth of cut set properly. I have tried everything I can think of and can not seem to get the depth right.

 

I uploaeded the file. it is called : PROJECTPKT.MC9

I also included the STL file for verification. Itis called : PROJECTPKTSTL

 

 

Thanks in advance!

[Guest CNC Apps Guy 1]

quote:

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...I am unable to get square corners ...

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Inside square corners???

[Teh Bear without Brains kinda idiot]

I.Anderson.

Look on the file I made for you ->same place

WTPPROJECTPKT.zip

 

Enjoy

 

HTH

WTHH

 

[ 04-28-2004, 08:20 AM: Message edited by: Winnie Teh Pooh ]

[Teh Bear without Brains kinda idiot]

I. Anderson !

 

Reply ?!?

[I. Anderson]

Hi Winnie, Sorry I am on the west coast. I posted that around 5am lol! Headed to check it now thanks!!!

[I. Anderson]

Still doing it. When I loaded it up it flashed a quick message about fixing it. I had to regen.

 

Here are the "not square" corners.

http://www.lilypix.com/photos/data/e4da3b7.../931_p28545.jpg

[Teh Bear without Brains kinda idiot]

I.Anderson !

___________

 

 

I am having a heck of a time projecting a pocket onto a simple radiused surface.

I am unable to get square corners and also unable to get my depth of cut set properly. I

have tried everything I can think of and can not seem to get the depth right.

____________-

 

1. Now the depth of cut OK ?~?

2 .In 3d there are no simple things .

You are projecting a pocket milled with end mill flat on cylinder ,so what do you expect ?!?

Mastercam makes maximum .it can not undercut it .!

Change your end mill to ball and see how your radius will become better milled !

3.Ideal radius you`ll get only on 4 axes milling or with a ball small enough .

 

HTH

WTHH

[I. Anderson]

Winnie,

 

The bottom of the pocket finish is not a concern. I am just trying to get a pocket on a radiused surface that has a radiused bottom. I thought I would try it as projecting a pocket onto a surface instead of projecting a toolpath onto a cylinder.

 

The depth is fine, I think what I will do is a contour toolpath on the geometry to get the perimiter of the pocket and the use finish project to rough it out.

 

Thanks so much for the help and responce!

 

-Ian-

[crazy^millman]

Why not create the surfaces and then do a surface rough pocket and then do a flowline for finishing the walls and using the bottom surface as a check surface then do the bottom as a parrelle and usign the walls as check surfaces? I have seen the pic and thinking that might give you the results you want if you feel comfortable doing it that way.

[Teh Bear without Brains kinda idiot]

Ian !

 

Take a look at the same place at WTPPROJECTPKT2.zip

 

You`ll like it .

PS .this is demonstration,sppeeds,feeds,and depth cuts only approximate.change tehm to real values

I am a metric man

HTH

WTHH

[I. Anderson]

WTP that looks great thanks!

 

Crazy Ron, I think I'll try that out and see if I can pull it off. Sounds like fun. Thats a way I never thought of Thanks!