Point Cutting Roundover Bit

[v84x4 (Rick Vestuto)]

Can someone explain how to use a Point Cutting Roundover Bit
or how to set it up in Carbide Create, please

Or is there a video about it somewhere

regards, Rick

[CullenS (Cullen Simpson)]

You may want to check this out:

How to Setup and Use Round Over Bits on a CNC Router

That bit geometry is not supported in CC so the simulation won’t really reflect the actual cut but you can experiment.

[Tod1d (Tod (with 1 'd'))]

I define a 90° Vee so I see a chamfer instead of a round, but can still see what’s getting cut.

[WillAdams (William Adams (Carbide 3D))]

As noted, not supported, but see:

Using unsupported tooling in Carbide Create: Roundover / Cove / Radius bits

These are usually used in routers for decorative effects in wood: https://www.whitesiderouterbits.com/products/1570 but they are potentially useful for joinery: They are also useful for rounding off parts to allow rotary motion as for a hinged lid. Unfortunately, Carbide Create does not support this endmill geometry — but using the new support for previewing a V endmill when used in a No Offset Contour toolpath, it should be possible to preview them w/ confidence by stacking a series o…

[v84x4 (Rick Vestuto)]

Yes, I watched that, but I want to know how much offset I need to use
I guess I will have to experiment on my own
was just hoping that someone had already done it and could give me some advice

[CullenS (Cullen Simpson)]

For the 1/8” I used his number of .095” for cut depth in Vectric, but it understands the bit geometry. You could model the curvature in CC and see what a .095 depth for the tip would require as an offset.

To be honest though, I only use this on items with a lot of curves. If the piece is reasonably straight or slightly curved and easy to get everywhere it is way faster to use a trim router for the roundover.

When I do name signs like for nurseries it’s easier on the CNC.

[WillAdams (William Adams (Carbide 3D))]

How much offset will depend on the tool geometry as explained in the link posted above — post a link to it/the specifications for the tool in question?

[v84x4 (Rick Vestuto)]

Here is the link to the bit I have…Thanks

1/4" Point Cutting CNC Roundover Bit

[WillAdams (William Adams (Carbide 3D))]

The Whiteside 1572 is one of the tools which I imported the profile of in the file at:

Using unsupported tooling in Carbide Create: Roundover / Cove / Radius bits

Here is a set of roundover tools: [image] cc_roundover.c2d (240 KB)

I would use that profile as a beginning, do a test cut using it, then adjust based on how the test cut turned out.

[v84x4 (Rick Vestuto)]

Thanks sooo much Will
I will give it a try and start feom there
Best regards, Rick