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Author Topic: Tapered Z DOC?  (Read 314 times)
airnocker
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« on: October 07, 2018, 22:26:11 pm »

I've not yet found any answer to this in my CB research, but here is the desired cutting action.

GIVEN: 60 deg. tapered V-cutter bit, either .125" or .25" shaft

QUEST: Run the v-cutter bit down a piece of wood along a 38" line, this could be an outside cut down a long narrow 38" PolyRectancle, but continuously change the DOC resulting is a specifically sloped DOC every 5 inches, with each successive 5" sloped DOC varying by small amounts.

I've attached a CB file to exemplify what I am describing.

Is this possible with CB?




* Sloped-Z-ProfileView.cb (5.33 KB - downloaded 14 times.)
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airnocker

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Garyhlucas
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« Reply #1 on: October 07, 2018, 23:18:42 pm »

If you use an engrave MOP on a line that varies in Z the tool will follow that line up and down as it travels along X and Y.
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Gary H. Lucas

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airnocker
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« Reply #2 on: October 07, 2018, 23:33:47 pm »

Gary, thanks, that's a terrific insight.  I forgot that every object has XYZ coordinates. duh.
So if I define a XYZ start and XYZ end point of a line, and the first Z=0 and the second Z=.046, the depth of cut will linearly interpolate a gradual change in Z along the length of the line with the engrave MOP.

Do I understand this correctly?
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airnocker

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dh42
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« Reply #3 on: October 08, 2018, 00:11:27 am »

Hello

Quote
So if I define a XYZ start and XYZ end point of a line, and the first Z=0 and the second Z=.046, the depth of cut will linearly interpolate a gradual change in Z along the length of the line with the engrave MOP.

Yes, you can edit the Z coordinate of polyline points with the (collection) property.

For a straight line, you can draw the line on XY plane then rotate it 90°.(saying Y will become Z)

You can also draw a pointlist, explode this point list, then select the points you want to move, and move them all at a time in Z with the nummove plugin ; when each point is where you want, select all points > edit/join to get an unique pointlist, then Ctrl+P to convert the pointlist to a polyline that can be engraved.


This ability of an engrave mop to follow Z position is very useful.

It is often used by plugins like Curved surface, Texturize, profil to helix, etc.

http://www.atelier-des-fougeres.fr/Cambam/Aide/Plugins/curved_surface.html

http://www.atelier-des-fougeres.fr/Cambam/Aide/Plugins/Texturize.html

http://www.atelier-des-fougeres.fr/Cambam/Aide/Plugins/Spiral2helix.html

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David
« Last Edit: October 08, 2018, 00:16:47 am by dh42 » Logged
airnocker
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« Reply #4 on: October 08, 2018, 01:24:08 am »

Many thanks David.  I've used the NumMove plugin in the past and find it very useful.  Thanks for creating it.

I'll read up on the other plugin links you provided.

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airnocker

Everything depends on everything else
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