Pencil inside a pocket

[Fred @ Slate Industries]

Hello

Does Pencil work on the inside?

I can get it to cut tangent between surfs on the outside but not on the inside.

I have a pocket where the floor goes downhill

I want my ball cutter to follow the floor around the walls.

Am I chasing my tail?

 

Thanks

Tony

[Thad]

quote:

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Does Pencil work on the inside?

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Yes. The tool has to "not fit" into the corner or it won't find any stock. Do you have the floor and walls selected as drive?

 

Thus far, I've only used pencil on "inside" work.

 

Thad

[Fred @ Slate Industries]

Edit:

Its dead sharp.So there isnt any stock.

Oh well

Thanks

[Doug Nemeth CNC Software Sales]

Tony-

 

For what you're describing, pencil should work. Do you have a file you can send to me?

 

Doug

[Fred @ Slate Industries]

Sure.

[Thad]

Doug beat me to it. To further explain my explaination not fitting would be like a 1" ball won't fit into a fillet that's .250. If the tool can fit (1" ball in a .750 fillet), then MC won't find any stock. I hope that makes more sense.

 

Thad

[Chris Rizzo]

m2c

in the new highspeed pencil you can give the tool an "overthickness value", which will force a tool of smaller radius into an area of bigger radius. It in a sense "fakes" mc into thinking the tool is larger in size when looking for pencil cuts, but then calculates and cuts to the actual size of the tool.

 

e.g. you can cut a .500 fillet with a .1875 rad. tool. i really like it because you can easily cut fillets without relying on the size of the tool to create the feature, or monkeying around with xtra geo.

[Jake Statz]

I Agree the Overthickness value works great. Works the same as the Cimco integration HSM package pencil.

[Thad]

Chris,

 

When using Overthickness, does the toolpath look like a leftover? If it still looks like a regular pencil (one pass through each area), where does it cut since there are multiple tangencies when using a smaller radius into a bigger radius? With the regualr pencil, there is only one tangency, and that's where it cuts.

 

Sounds like great feature. I'll have to check it out in my spare time.

 

Thad

[Thad]

The Help explains it all. Sweet!

 

Thad

[Jean-Simon]

I had much better results and control with finish project "curves" then with pencil.

 

Simon

[Thad]

Simon,

 

Do you use that as a rough/semi toolpath?

 

Thad

[Doug Nemeth CNC Software Sales]

Tony-

 

I've been playing around with your file and can get good motion, but just a little more than I'd like. I'll get it figured out soon, and send you my results!

 

Doug

[Doug Gabbey]

Doug,

When you sort this out would you let know what you did to make it work?

I have tried pencil a couple of times without any luck.

Doug Gabbey

[Thad]

Doug,

 

What's happening....or not happening?

 

It would be nice if the "direction" option worked. MR2?

 

Thad

[Doug Gabbey]

Thad,

I will get back to this one later as I am going to a WET WESTEC today. I am sure it is ignorance or it's buddy, stupidity on my part.

I will post something later in the week.

Thanks,

Doug