How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
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This is my finished ball and knob turner. You can make knobs out of any material you want . Brass,plastic,aluminum,steel , wood .This style of turner i can create a ball up to 1 1/4 inch round.

Step 1: Ball turner base plan

How to make a metal lathe knob turner
Here are the plans for the base of the ball turner which goes into the cross slide of the lathe .

Step 2: Machining the base

How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
pic#1 shows the 1 1/4 inch height i have to maintain and the end of the project.
#2shows milling the edges square
#3 shows milling the a edge slots that fit in the cross feed ..
#4 shows the top milled flush with the cross feed and it fits very snug.

Step 3: Hub for turner rotor

How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner

Step 4: Ball turner rotor plan

How to make a metal lathe knob turner
Here is the detailed plans for the cutter rotor

Step 5: Making the Rotor

How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
pic #1 shows the rotor being drilled through with a 1/4 inch tap drill and will be threaded 1/4x20
#2 Shows boring a hole 1 1/4 wide by 3/8's deep to fit a bearing.
#3 shows the rotor with the 1 1/4 outside diameter x 3/8's thick x 1/2 inside diameter bearing press fitted flush to the bottom edge.

Step 6: Milling the rotor

How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
pic#1 shows milling the center of the rotor which will help the cutter slide on center of the rotor.
#2,3,4 Show milling the rotor to the correct size for clearance to cut the knobs

Step 7: Ball turner bit plan

How to make a metal lathe knob turner
Here is the detailed plan for the turner bit

Step 8: Making the cutter bit bracket

How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
How to make a metal lathe knob turner
pic #1 , 2 shows milling the stock to make sure the edges are square
#3 Shows the milled slot for the carbide bit will sit.
#4 ,5 show the bracket milled to the proper thickness.
#6 Shows the 1/4 inch milled adjustment slots .

Step 9: 1/4 and 3/8 inch threaded knob arbors

How to make a metal lathe knob turner
Here is the plan for the arbors for different size threaded knobs.

Step 10: Finished video of the knob turner turning a 1 '' aluminum knob

 
 

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