pocketing using mastercam9

[Francis]

I was trying to pocket a letter so that it (letter) is raised using mastercam9 I get a message "not all boundries are closed. Select open pockets or close chains." However, when I change the pocket type to "open" I did not get any error message but the letter is not cut when I verify, that is, I can only see the block.

[TonyK]

Francis

Try sketching a containment boundry around

the letter.After selecting the rectangle

you created and the letter geom.choose done.

Then select the area you want to cut.

Anywere inside the contian boundry.

You will also need to select areas inside the

letter if needed.

 

 

hope this helps

[Elad]

Welcome to the forum.

 

For simple pocket you have to choose closed chain and the end mill will work inside.

It looks like your chain is open somewhere ,create a new one and try again.

as for problems in verify,did you choose bounding box to definite the stock??

[cadcam]

Francis can you share the file that has the trouble .

I would like to see if it some of usall trouble that I seee with my students.

 

Also when doing this pocket when it give you this massage look after saying ok it will show you in white area ir letter that has the trouble.

[steve f]

Francis,

 

try Main Menu, Analyze, Chain and select your pocket boundary starting at different points on the chain. The arrow specifying chain direction will likely keep snapping to a single intersection or location and that is where your chain is open. Go to Modify, Trim, 2 Entities and trim the two entities at the intersection to each other to close the opening and re-analyze the chain. If the arrow snaps to the closest point of the area you select the chain then it is fixed...if it keeps snapping to a different point/intersection even when you select the chain from a different area then it will need to be trimmed there as well. Good luck and let us know how it worked,

 

Steve

[cadcam]

Steve that works well with say a singal or two chane processe were you see were the red arrow stops, this is were you either have a broken chain or another dup enitity or a segmented being a partail enitity. other wise when doing sevral chains at one time like window around you will only get the green arrows.

But as a posket mastercam will highlight the group of enitities that will not close.

[David S]

try to do DELETE, DUPLICATE before you do Steve said. That will make your job easier.

 

Hope it will help.

[ROB]

or try screen endpoints.

[jenks]

I have also had problems with lettering when using CREATE-LETTERS-NEXT. If using anything but a stick letter and you try to chain them, you may occassionly get an error. The error is the result of untrimmed lines on the letter geometry. As I recall, I thing the letter "C" is one of the culprits.

[cadcam]

Jenks what helps with that is to do a Xform,Squash all enitites.

[Francis]

Thanks for your quick reply. However, none of them worked. The letter I was using was "K" I can use mastercam 8 and have no trouble cutting it.

[Zero]

Try turning off the finish pass. Works for me sometimes..