Bulls Head pattern

This forum is for general discussion regarding VCarve Pro
Post Reply
tony

Bulls Head pattern

Post by tony »

How does the program know to cut deeply around the "B" in Bullshead and then cut very shallow around the filligree? thanks, tony

User avatar
Paco
Vectric Wizard
Posts: 480
Joined: Fri Sep 16, 2005 6:30 pm
Location: Valcourt, Québec, Canada
Contact:

Post by Paco »

V carving strategie's magic!... in short, it's all about the cutter shape; the deeper the wider... :wink:

I'll let Tony or Brian chime in if you need more detailed infos.

User avatar
Burchtree
Vectric Wizard
Posts: 977
Joined: Wed Aug 31, 2005 12:26 am
Location: Upper Michigan

Post by Burchtree »

Paco is right the width of the lines plus the degree of the V carving bit determine depth of the cut. If you had two lines .125 wide 60 deg. bit will cut deeper than a 90 deg. bit. Two lines .250 wide will cut deeper than two lines .125 wide with the same v bit.
I hope this helps
Dan

User avatar
Tony Mac
Vectric Alumni
Posts: 1965
Joined: Sat Jul 30, 2005 6:24 pm
Location: UK
Contact:

Post by Tony Mac »

Hi Tony,

Good question and the simple answer is the mathematics engine in VCW is pretty clever and automatically calculates a constantly changing 3D center-line between any combinations of vector boundaries. This algorithm is key to the VCarving process and takes care of even the most complicated of designs.

Imagine the letter ‘T’ with the cutting edges of a V-Bit cutter resting on the outer edges of the vertical lines. The tip of the cutter will automatically drop to the middle point inside the letter to a depth that depends upon the width of the letter and the angle of the cutter. Where, the tip of a pointed cutter such as a 60’ included angle will drop deeper than a 90’ included angle cutter.

Taking this a step further. Where the gap between vectors changes - gets wider or narrower, the depth of cut will also change and VCW calculates the constantly changing points to create a precise, flowing toolpath.

The math gets significantly harder for more complicated shapes and combinations of vectors.

The diagram below tries to show what I mean using an example where the gap between the vertical and horizontal regions is constant, but changes in the corners and also where the 2 bars meet.

Hope this makes sense?

Tony

tony

Bulls Head

Post by tony »

It does make sense, thank you for the replies. tony

Post Reply