slowing tool down in corners question

[cadmonster66]

i just have to rough and finish and inside window 8in by 8in with .500 radius . I'm roughing with 3/4 dia enmill and want to go back and finsh with 1/2 dia endmill. how can i get the tool to slow down for the radius in the corners.

thx

John

v9sp2

[Lars Christensen]

Can you use

Operation manager=> Toolpath Editor

 

Lars

[Tom Dorgan from American Precision]

cadmonster,

Use the job setup to adjust feed on arc moves.

[cadcam]

Also can click on the geo for that op and right click and use the option to change at a point and put what ever speed you want in the corners.

[BernieT]

Also, using 'Highfeed' in ops mgr will do it but it takes some experimenting to get what you want. It slows down as the tool approaches the corner and accelerates out of the corner.

 

HTH

[Lars Christensen]

You got to love Mastercam, so many ways to get what you want. Only problem is now that YOU has to make a desicion wich one to use

 

Lars

[cadmonster66]

the only problem i have with the arc option is that i have a 1/2 inch dia endmill going into 1/2radius so it is just straight moves no arcs . Hey Cad when i have that window open for change at point if i click on the first point going into the corner it changes the feed for the whole line leading to the corner and if a click on the point after the radius it changes the feed for the whole line coming off. what is with the check box am i suppose to check them

thx

john

[Rob Dusenbury CAD/CAM CONSULTING]

quote:

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Hey Cad when i have that window open for change at point if i click on the first point going into the corner it changes the feed for the whole line leading to the corner and if a click on the point after the radius it changes the feed for the whole line coming off

 

---

Break the line by some length so you can change at that point then break the other line past the radius at length and change at point. Awesome tool because you can change feed and speed at each given point.

[Thad]

quote:

---

the only problem i have with the arc option is that i have a 1/2 inch dia endmill going into 1/2radius so it is just straight moves no arcs .

---

John,

 

I'm not trying to bust your ß@LL§ or anything, but that's not good machining practice. You're better off going in with a smaller tool so it will swing a radius. Or modify your radius to .280. Just some friendly advice...

 

Thad

[Travis_Buchanan]

Doesn't a 1/2" endmill have a 1/4" radius?

[Mike Whitten CAD/CAM Contractors]

cadmonster66,

 

Many times I just plunge(drill)out the corner with the end mill before machining the finish contour cut. Just something to think about. Otherwise, people here just gave you many ideas.

 

Thanks,

Mike

[Thad]

quote:

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Doesn't a 1/2" endmill have a 1/4" radius?

---

Yes it does. But if you read all of John's posts, you'll see that he typed it wrong.

 

Thad

[Travis_Buchanan]

quote:

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Yes it does. But if you read all of John's posts, you'll see that he typed it wrong.

---

I know what he ment I was having a little fun. If he actually did have 1/2" endmill and 1/2" radius fillets in the corners he could use the slow down arc feeds. I also agree that you should always let the path make the radius and never the tool, unless quality and size of the corner doesn't matter that much.

[Thad]

I gotcha, Travis. My misunderstanding.

 

Thad

[cadmonster66]

Yeap sorry guys my bad typed it in wrong lolololol. Well cann't blame me for tooling ,all i get is a job packet and a box of tools. Boss is always right he orders the tools. Wish i could have drilled the corners out window is already roughed out by waterjet. Guy left just way to much and not enough :mad:Good old stainless steel job too and boss wants to break speed records 12x12 part 20 tapped holes and lots to mill .WHATTTTTTT PART TAKES AN HOUR WE NEED TO GO FASTER well you guys have good holiday i'm out of here

thx

John

[cadcam]

Travis and Thad your both Wrong the 1/2 em has a .250 radi

[Thad]

quote:

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Travis and Thad your both Wrong the 1/2 em has a .250 radi

---

Whatchoo talkin' 'bout, Willis?

 

I think you're a day late and a dollar short.

 

Thad

[cadcam]

What a minuite I use to party with willis along time ago, so you had to bring him up.Thought I left that in my past.

 

My point is

some people like to use a .500 em with a 1/4 radi and others like to use a 1/2 em with a .250 radi which one are you?

[Thad]

Jay, you're too much! It looks like you've started your New Years celebration a little too early.

 

Thad

[cadcam]

So Thad which one are you?

[Thad]

I use a .500 end mill with a .250 rad. Oh, and my glass is half full...what about yours....half full or half empty?

 

Thad

[cadcam]

empty right now but going to get another eggnog and brandy right now.

SO I would say my sippy cup is more then half empty.

[cadcam]

aaaaawwww much better with my class half full now.

[Thad]

Half full or half empty....it's time for a refill!

 

Thad

[cadcam]

Yes sir I am looking at that now