Sharing Carbide Create Dovetail Files

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

An interesting development here is keyhole toolpaths:

Carbide Create V7 Question- Keyhole toolpath

I’ve seen more and more references to people trying to work out how to make keyholes in CC. We’d be open to adding that as a toolpath in V7 so I’d like a little feedback. To simplify, we’d probably define the location with a circle, like the drilling toolpath, and then you’d define how tall you’d like the keyhole to be, and what direction from the center, Y+, Y-, X+, X-. We’d probably implement the toolpath as a plunge, line to the end and back, then a retract. We would not offer to “expand”…

which could be used for a dovetail tool.

[gdon_2003 (Guy Donham)]

I started using the key hole function I have a Frued bit and created a custom tool in CC.

Here is my custom tool database .csv file. This would only work for the Frued

Here is the Frued 70-104 Key Hole 1/4" shank key hole bit.

number	vendor	model	URL	name	type	diameter	cornerradius	flutelength	shaftdiameter	angle	numflutes	stickout	coating	metric	notes	machine	material	plungerate	feedrate	rpm	depth	cutpower	finishallowance	3dstepover	3dfeedrate	3drpm
701	Freud	70-104		Keyhole	end	0.39	0	0.25	0.25	0	2			0		Shapeoko	Hardwood	10	60	16000	0.4375			0	60	16000

Here is a file that I used to create some key holes.

cigar_store_keyhole.c2d (44 KB)

In the file you will see three circles and that is where the key hole bit plunges in. then it goes forward then retreats and comes out the entry plunge.

If you look at the simulation it looks like the bit plunges and goes forward and does not show the smaller diameter of the router bit making the key hole shape. Not sure which version of v7 I created the file in. The simulation is limited by the largest diameter of the bit to show in the simulation,

Here is the key hole tool path. The calculation is how big your big diameter is and the tool was created to have a depth of cut so the big diameter plunges down and then goes forward, reverses and comes back out the original plunge hole.