Newbie- Center Drill Depth

[Ed from NY]

I looked and searched and the only way I found to change the depth of the center drill step in the drill pattern is to lie about the angle of the tool.

An angle of 150 degrees gave me 0.0214" which is about what I was looking for... weird.

As an aside, I suppose there is a way to create a new tool pattern of a drill without the center drill step -- while keeping the existing drill pattern for when you want the center drill. Did not get to look into that yet.

[BurrMan]

Ed,
On the Parameters page of the Center Drill feature there is a Manual Overide button for the depth. Does this not do what you are asking?

[Ed from NY]

Originally Posted by BurrMan Ed, On the Parameters page of the Center Drill feature there is a Manual Overide button for the depth. Does this not do what you are asking?

This is in the "Drill" Feature which has 2 steps/tools: center-drill and drill. I do not think that in this feature it allows you to specify the depth.

[BurrMan]

Under the "Hole" feature edit, on the parameters page, if you select "Peck" a field for first and second peck appear. I wonder if the first peck is the center drill?

[Ed from NY]

Originally Posted by BurrMan Under the "Hole" feature edit, on the parameters page, if you select "Peck" a field for first and second peck appear. I wonder if the first peck is the center drill?

Peck drilling drills a bit, pulls out, drill a bit more, pulls out, etc.

It lets chips out, breaks barbs and gets coolant in... me thinks. I have used on air.

Trying to solve another problem on how much HP we really have on my mill now. Once we pass that part I'll probably get to video the pecking

[BurrMan]

Answered my own question.

No!

[BurrMan]

I suppose at this point you will just have to make 2 features. One for center drill with depth you want and then the hole with the centerdrill removed.

[Ed from NY]

Can you do your own features???

Is there a tutorial?

[BurrMan]

Ed,
What I meant was to just create a Center drill feature that has the depth override function, then create a hole feature to do the drilling. From the tool Pattern menu you can delete the center drill tool from the second feature. You can use the "part" settings to do it only for this operation so you can leave the hole function alone for other operations.

[Ed from NY]

Originally Posted by BurrMan Ed, What I meant was to just create a Center drill feature that has the depth override function, then create a hole feature to do the drilling. From the tool Pattern menu you can delete the center drill tool from the second feature. You can use the "part" settings to do it only for this operation so you can leave the hole function alone for other operations.

Ah!

Smart.



Here is the test video I mentioned... In the 2nd try, the one that works, you can see the peck working at 0.125"

YouTube - Help me fix my Mill - Part 8 - Drilling

YouTube - Help me fix my Mill - Part 8 - Drilling

[dcskid]

I was taught to slow down rpm's or increase feed rate to get the chips to stop tangling up. See if it works for you.

David

[BurrMan]

Isnt there some kind of tool that attaches to the spindle that breaks that stuff off. A 3 footer could reach out and grab you and take a piece back with it!