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DCMT tip specification.

HughesTooling
Consultant

DCMT tip specification.

HughesTooling
Consultant
Consultant

@akash.kamoolkar With a DCMT tip set up like this is it assumed the radius is the same on all 4 corners? It seems pretty close on the tips I'm using but wonder if it should have some fine adjustment. I prefer setting up like this so it's easy to check the depth the tool is going to move (Z axis).

HughesTooling_0-1714404611317.png

I sketched up a tip with 0.2 rads all corners and get this. The actual tip measures 7.125mm but wonder if this is consistent with different radii and is this how you are calculating the width of the tip in the tool library?

HughesTooling_1-1714404872463.png

Also is there any progress on making the holders correct for tips in this orientation?

HughesTooling_2-1714405221541.png

 

Thanks Mark

 

 

 

Mark Hughes
Owner, Hughes Tooling
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seth.madore
Community Manager
Community Manager

A) Yes, the radii are applied to all corners

B/C) We've done some internal work to place the Tip Tangent where it's supposed to be:

2024-05-03_09h43_58.png


Seth Madore
Customer Advocacy Manager - Manufacturing
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HughesTooling
Consultant
Consultant

@seth.madore wrote:

A) Yes, the radii are applied to all corners

B/C) We've done some internal work to place the Tip Tangent where it's supposed to be:

2024-05-03_09h43_58.png


Thanks Seth. Is that image how Tip Tangent is going to be in the future? Will the existing Tip Tangent be an option still?

I prefer the existing tip tangent as the max Z will be the end of the tool so easier to see the max depth. I know the simulation should be enough but I still like to double check the numbers in the code. Any work on improving the holder so it doesn't protrude past the tip?

HughesTooling_0-1714744848742.png

 

Mark Hughes
Owner, Hughes Tooling
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seth.madore
Community Manager
Community Manager

Yes, the image shown is what users would see in the near future. No, I don't believe that there's an option to retain the old method as you prefer. It's possible that we could add a new compensation point, but I don't think there's going to be much bandwidth for that development work at present.


Seth Madore
Customer Advocacy Manager - Manufacturing
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HughesTooling
Consultant
Consultant

@seth.madore  Going to be dangerous for existing toolpaths?

 

Is there going to be a change for threading tips as well? Hope not as it feels a lot safer knowing the end ot the tip is the max point when coming upto a shoulder.

 

Mark Hughes
Owner, Hughes Tooling
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seth.madore
Community Manager
Community Manager

No, it does not appear so:

2024-05-03_12h53_47.png

I seem to recall some discussion and uncertainty around where "compensation point" should be on turning tools that are oriented as you show above. I'll have to dig thru the notes and see what the resolution was..


Seth Madore
Customer Advocacy Manager - Manufacturing
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seth.madore
Community Manager
Community Manager

How do you expect to touch off neutral tool holders for OD? Currently in Production, we're given this:

2024-05-03_14h57_19.png

While ID is given this:

Boring Bar (ID).png

Grooving tools get this:

2024-05-03_15h14_46.png

And R/L holders for round inserts (neutral is same as my first image) gives this:

2024-05-03_15h15_41.png


Seth Madore
Customer Advocacy Manager - Manufacturing
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HughesTooling
Consultant
Consultant

@seth.madore wrote:

How do you expect to touch off neutral tool holders for OD? Currently in Production, we're given this:

2024-05-03_14h57_19.png

 


 

Been awhile since setting up a tool like that but I think when setting the tool on the lathe I've touched off using the corner of the tip then moved the Z half the measured width of the tool and set the tool Z zero. Done like this probably a bit more accurate as you measure the tip.

 

I guess the thing about boring tools is you can't see what's going on so having the point how it is now you you see the maximum Z depth in the code and on the control as it's cutting. With the new tip tangent you need to remember the tool will be 2 or 3mm deeper. Pretty much everything I do is a one off and I drill the holes manually with the tail stock so the first one is always a bit tense! 

 

Mark Hughes
Owner, Hughes Tooling
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seth.madore
Community Manager
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So you would hope/expect that we allowed ID tools to be defined differently (for Tip Tangent points) than OD tools, when insert is set to neutral? I've been looking for a neutral insert aligned boring bar and coming up empty, could you link me one that you're using?

 


@HughesTooling wrote:

 

Been awhile since setting up a tool like that but I think when setting the tool on the lathe I've touched off using the corner of the tip then moved the Z half the measured width of the tool and set the tool Z zero. Done like this probably a bit more accurate as you measure the tip.

For ID and OD tools, I would also measure the distance on my optical comparator, touch off my tools and input the shift in my tool offsets.


Seth Madore
Customer Advocacy Manager - Manufacturing
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HughesTooling
Consultant
Consultant

This is the tool I used. I ground away the end of the holder so I could touch off using the tip. I guess I could have measured from the end of the holder to the tip midpoint on a shadowgraph but would have been a bit fiddly centring on the tip.

 


@seth.madore wrote:

So you would hope/expect that we allowed ID tools to be defined differently (for Tip Tangent points) than OD tools, when insert is set to neutral? 

 


I guess having it consistent for ID and OD is best in the long run but what is going to happen to existing toolpaths? If there is going to be a change in how it works will there be warnings the tangent point has changed? You'll need warning when creating new toolpaths with an existing tool and warning if you regenerate existing programs.

 

Mark Hughes
Owner, Hughes Tooling
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HughesTooling
Consultant
Consultant

Just remembered, I'm pretty sure this graphic is wrong, it should be like I've sketched in red.

HughesTooling_0-1714817885160.png

 

Mark Hughes
Owner, Hughes Tooling
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seth.madore
Community Manager
Community Manager

@HughesTooling wrote:

Just remembered, I'm pretty sure this graphic is wrong, it should be like I've sketched in red.

 


 

For...insert size? Is that accurate, isn't it the Inscribed Circle? (either way, the current graphic would be wrong)


Seth Madore
Customer Advocacy Manager - Manufacturing
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HughesTooling
Consultant
Consultant

@seth.madore Another problem I ran into a while ago, I needed to bore a undercut and keep the corner as sharp as possible. The only tool I could find was a small internal threading boring bar (See here, the picture on the page is wrong, it's a 60°with a 0.05mm corner rad). I set the tool up as an internal threading tool but Fusion wouldn't let me use it for profiling, don't see why this should be blocked no real reason why you can't turn with a thread insert.

HughesTooling_0-1714818417588.png

In the end I had to set it up like this.

HughesTooling_1-1714818618108.png

 

Mark Hughes
Owner, Hughes Tooling
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HughesTooling
Consultant
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@seth.madore wrote:

@HughesTooling wrote:

Just remembered, I'm pretty sure this graphic is wrong, it should be like I've sketched in red.

 


 

For...insert size? Is that accurate, isn't it the Inscribed Circle? (either way, the current graphic would be wrong)


The Inscribed circle is 6.35mm for this size tip, this would work the way the graphic is but then the size in the menu's wrong.

 

Mark Hughes
Owner, Hughes Tooling
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