The “Celtic Knot” jig MKI

The problem I had with the celtic knot pens was holding the pen blank in the same position every time. To get around this, I built this rather simple jig from a bit of phenolic plywood. The jig was to hold the blank at 30° and cut the saw drift in the same position each time. Unfortunately, the fence being at 30° meant the cut was at 60°.
This is yew with mahogany infill
Yew Knot Pen 60°

This produces a very tight knot, which although it looks good, is too bunched up for my liking.
I moved the fence to 60°, so the cut would be at 30°.
Unfortunately I forgot to adjust the blade height to compensate for the different blank thickness.
This one is maple with mahogany infill
Maple Knot Pen 30°
This spreads the knot, but leaves the odd gap where the infill was obscured by the remaining timber. I think I also need to use a finer blade with finer infill.

The jig itself is a simple affair. A piece of plywood with hardwood “slides” to fit the guides on the table saw.
M4031P-4201
This then has a fence and a couple of clamps to hold the pen blank in place
M4031P-4201
The addition of a stop block keeps the pen blank in the same position each time. This was with the fence at 30° to the jig.
M4031P-4201
This photo shows the fence at 60° to the jig, which places the cut at 30° on the blank. And yes, the clamps have been moved to accommodate the new position.

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