G-Force CNC User Forum

Trying out different things and wanted to try and replicate the Incra double dovetail. I got close but did not think about the second dovetail being a half blind so my first cut was too deep. Finished it off with another through dovetail instead.

The program is great. Now that my machine is setup and I have learned JointCAM settings I was able to do this with no test cuts.

Awesome.
At some point I have plans to do a tutorial on double dovetails. But I have a lot on my plate right now.

Do you find that you need to adjust the Clearance setting? On my machine I use a setting of -.002 to get really tight fitting joints. I think this may vary with different bits, though.

On the through dovetails i used a clearance of +.002 and it is still pretty tight. On half blind i needed -.002 using the same dovetail bit.

hey successful login! JohnB I think those dovetails are great but do you have any pictures of your vertical vise holddown? great job

Thanks.

Here are some photos of my setup along with a couple other dovetail tests. I first tried holding the material with bar clamps but it was not solid enough and I got tear out. Adding the maple bars across the material prevents any movement and made the joints much better. The recoil bars on the CAMaster are perfect for this.

Nice work John,
and thanks for sharing the photos !!

Cheers
Tony