Made a jig to measure projection length

[BlueDun]

Gents

After I recently adopted the calculator method to my workflow, I figured that I will need some tools in order to facilitate life. Something to facilitate measuring projection length in particular that is. I was inspired by Perra's T-Cube. I think it's a simple and efficient solution. So I thought why not base on this design as the actual measurement device and make up a jig to go with the T-cube.

Out came my KJ-45 projection jig. It's designed to work with the KJ-45 (go figure ... 😉) and knives with blade width up to about 8cm. The KJ-45 is locked into position to avoid the need of a third hand when setting the T-Cube and the ruler.

I think it came out pretty ok and it fits the job. I will upload it over on Printables for share. Before that, however, I request permission from Perra to also upload my model of the T-Cube. The jig alone is of limited use without the cube.
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[Ken S]

Nice jig, BlueDun.

Your design is certainly more sophisticated and versatile than my humble kenjig was. It was just a piece of Baltic birch plywood with a pencil scribed line at 139mm, the Projection for a 15° bevel and 250mm diameter wheel with most knives. It would need to be modified to work with the new KS jigs.

The humble scribed pencil line might still prove useful if you find yourself using a common Projection. I would suggest using a square to match the lines on both tracks.

Keep up the good work.

Ken

[Perra]

Hi
You can use the T-cube in you projekt if you like. I posted it here in the forum for free to use. If you look at this post and download the attached pdf-file you can see a simple way tho set the projection length with only a small end part needed to 3d print.


https://forum.tormek.com/index.php/topic,5510.0.html

[BlueDun]

Thank you @Perra 👍

I published the model over at Printables --> https://www.printables.com/model/1193871-tormek-projection-length-jig

Enjoy!