how do I ramp from outside of part?

[GeoGirl]

Hi gang,

How do I ramp in from outside of my part using say a 2 inch face mill. I can't plunge ramp, I need to come in off the part, but only in from 1 specific edge. Do you have to draw this profile in to create the toolpath? Struggling

 

Thanks

Geo

 

 

Using X now :-)

[DavidB]

Can you have a Lead In 55% of cutter Dia?

[Toby-Axis]

I am training at a friends shop with V8 and V9. I am still very new to MC but remember someone saying that there is a way to select a Starting Point. Have you tried that yet? If this is wrong, it's Rekd's fault, LOL. How different is V8 and V9 compared to X?

[Guest]

quote:

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How different is V8 and V9 compared to X?

---

The functionality of how things work is quite similar.

 

How it is all laid out in fron tof you however is completely different and brand new GUI

 

Welcome to the Forum

 

[Mgrenier]

Geo,

 

Don't know wich toolpath you are using but you could try selecting a point before your geometry so the tool starts from that point. Or you could play with your leadin parameters.

 

Hope that helps.

[chris m]

Can I ask the obvious question? If you are off of the part, why are you ramping?

 

That being said, if you are using a Facing toolpath I don't think you have any option to ramp so I would suggest building a 3-sided boundary around your face and playing with Open Pocket or Contour to get some ramp action going.

 

C

[titanium neck]

I think that with the facing canned cycle that you do not have the option to start off the part or plunge off the part which is really what you are doing. You do have that option in some of the pocketing toolpaths, but I think that you are going to have to generate the geometry yourself in this instance, just create a rectangle that is bigger than your facing area on the side you want the cutter to start from and use that as your geometry to define the facing routine. Just make sure that the geometry is on the same plane as the surface you want to cut is.

[GeoGirl]

Hi guys,

C... I don't need to ramp, just need to find a way to enter off the part. If it meant I had to ramp I can do that. Don't know if I have to use the facing command or pocket. I just know its fighting with me. I am fairly new obvioulsy, I will try the open pocket again, just not sure how to work with it. What toolpath should I be using to "selecting a point before your geometry so the tool starts from that point"?

 

You guys are such a great help

thanks again

Geo

[Guest]

A facing cycle can enter from off of the part just set the approach distance large enoguh for half the cutter dia + clearance and it will start each pass off of the part

 

Ap ocketing routine can use a start point and start outside the pocket, then enter the pocket boundary and start each subsequent pass at that same start point as well

[Lee.]

Geo,

 

What kind of toolpath are you using?

 

This will help in determining the best option.

 

Lee.

[Michael Sullivan]

Pocketing works with a start point I know for sure. I use it all the time. Doesn't matter when you select the point either.As long as a point is selected in the Geometry in the tp manager, MCam will recognize it as a start point. you can make a point to select or just or while you are chaining click on the "point" selection Icon and click in the area you want it to start and it will create the point.

[GeoGirl]

Hi Michael.. you had the correct answer!

That is exactly what I want, would have never figured it out. I tried in the face command, changing the approach, but it was approaching in the X and I need it to approach in the Y.

You guys are the best.

 

Geo

[Guest]

On the facing you can change the rough angle angle to what ever you need.

 

change to 0 to 90 it will approach in the Y

[chris m]

John is absolutely correct; facing is the best way to chip and entire piece of stock and requires no part geometry at all if you define your stock in Job Setup. If you are just working on one area Open Pocket works pretty slick and allows you to attack the thing from any place you wish

[GeoGirl]

Hi again,

Thanks, Micheal got me out of the emmediate bind, later today I will play with the facing.. I know I did change the y value once, but it didnt' work, had to be my mistake.

I'll let you know how it works out!

 

Later, and thanks

Geo

[Michael Sullivan]

facing works good too for square parts. for a round part I like just a regular 2D contour toolpath with a negative x,y value and multipass.that way it follows the contour more naturally.(less air cutting)Also it gives you a good radial ramp-in.

[Rekd™]

Hi tobyaxis, glad you made it!

 

[TobyAxis]

Thanks guys for the nice welcome. This is a very informative site for MC.

 

BTW Rekd: The MC Logo is on my New Sippy Cup with lots of coffee in it.

 

[cadcam]

Hi Toby I see you just joined thought you had been here for a while.

Feel free to contact me any time you have a question.

 

Toby has alott to offer and glad to see him here.

 

Reked were have you been. You need to call and say hi some time soon.

 

Jay

[TobyAxis]

Thanks, I will do what I can to help and Learn. BTW : how does one become an MC Certified Instructor? Must be fun.

[cadcam]

Toby it is offerd by the Local Mastercam dealers. you can contact the Education divsion and they will help go in the right direction.

 

Also look here sir.

 

http://www.mastercam.com/TeachersStudents/...on/Default.aspx

[TobyAxis]

Thank You Cad Cam. Does on need a Formal Engineering Degree to become an Mastercam Certified Instructor?

[cadcam]

No but you have to buy a Politician

[TobyAxis]

Ok........That is a bit out of my price range, LOL.

[cadcam]

you can get certifacation but to be a certafid Instructor you need to start as an instructor and there options for instructors to go to our main EDU office ofr some trainning and testing.