How To Make A Jam Chuck For A Wood Lathe
Next invert the bowl mounting the tenon in your 4-jaw chuck and re-turn the bowls interior.
How to make a jam chuck for a wood lathe. All you need is a faceplate. Screwchucks with a pointed small screw enable quick mounting of small blocks of wood - you can just screw the block on while the screwchuck is on the lathe. Im not an engineer or a woodworker.
Works great and is super cheap. Go to your local building supply store and find a cheap plunger mine was 3. Above Jam chuck held in Vicmarc chuck.
A piece of threaded rod will go into each of the four slots. The simplest home-made chuck is a waste block of wood glued to the bowl blank and used for holding. This video is a step by step process of making a jam chuck for a wood lathe.
For a 1-14 x 8 TPI headstock drill a 1-18 initial hole and tap with a 1-14 x 8 TPI wood tap. Rotate the bowl by hand and using the tool rest as a reference center the bowl between its two widest points as shown. This isnt super critical within reason because the axis will be defined by the tail stock point and the working end of the PVC is padded.
You start with a large piece of wood on a faceplate. These are handy for holding such projects as wooden. This avoids leaving screw or chuck marks on the piece or having to increase the size of the blank to achieve the same result.
This gives you a way to center the bowl. Secure the setup with the tail center and turn the tenon and outside of the bowl concentric. The two pieces are bolted together with long bolts.
