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Need help with chamfering grooves on a mill

5 REPLIES 5
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Message 1 of 6
CuttingEdgeManufacturing
154 Views, 5 Replies

Need help with chamfering grooves on a mill

tried a few different ways. cannot even get the regular(bottom) chamfer to work let alone trying the topside chamfer.

 

anyone have tips? attached is the f360 file.

 

CuttingEdgeManufacturing_0-1698418349244.png

 

5 REPLIES 5
Message 2 of 6

Hi, we use these tools regularly.  I use 2d contour and fiddle with side and depth allowance until it looks right.  Then I save a template for this tool for ease of use the next time.

Message 3 of 6

Folks that are much smarter than I have done the brain-work and come up with some nice expressions that can handle this with no fiddling whatsoever. Initially, it was one formula, but I didn't like that it put the tip of the tool right on the edge of the selection. As such, I've tweaked it a bit and now there's one for "topside" and "bottom side". 

2023-10-27_13h54_15.png

I've attached the template (zip folder) and the file here.

 

Nerd alert!

Here's the expression(s) that go in the radial and axial Stock to Leave:

 

Radial:

(tool_diameter-tool_tipDiameter)/2-chamferWidth-2*(chamferTipOffset/Math.tan((90-tool_taperAngle) * Math.PI/180))-.005in

 

Axial:

-((tool_diameter-tool_tipDiameter)/2*Math.tan((90-tool_taperAngle) * Math.PI/180))+(chamferWidth*Math.tan((90-tool_taperAngle) * Math.PI/180))-.005in

 

 

The above is for deburring the backside of a part and it gives you a .005" offset to tool centerline. You need to set your Chamfer Width and Chamfer Offset to zero:

2023-10-27_13h59_28.png

 

The "Stock to Leave" portions are filled in via the expression.

 

 

 


Seth Madore
Customer Advocacy Manager - Manufacturing
Message 4 of 6
DarthBane55
in reply to: seth.madore

**** dude!!!  Thank you so much!  I am saving these equations for future use for sure, awesome!!

Message 5 of 6
seth.madore
in reply to: DarthBane55

Yep, they're quite handy! And, they do adjust for tool angles, even though it's most common to use a 90 degree Double-Angle tool


Seth Madore
Customer Advocacy Manager - Manufacturing
Message 6 of 6

Wow thanks! I’ll give this a try on Monday! 

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