Machining a Resettable Dial for a Myford Leadscrew Handwheel

The video tutorial addresses the challenges of using imperial Myford lathes and proposes a solution with a resettable metric lead screw dial. It details the manufacturing process of the dial from stainless steel, the engraving using a pantograph machine, and the assembly with ball bearings for friction. The tutorial also covers machining the hand wheel and testing the final product, ensuring the dial is easy to read and operate.

What is one of the main challenges in converting Myford lathes to metric measurements?

• The lead screw conversion is complex.

• Metric hand wheels are readily available.

• Digital readouts are inexpensive and easy to fit.

• The cross slide is difficult to modify.

What material is used to form the ring for the metric lead screw dial?

• Brass

• Aluminium

• 316 Stainless Steel

• Copper

Which tool is used to mark the graduations on the dial?

• A hand chisel

• A CNC machine

• A V tool

• A laser engraver

What device is used to ensure precise engraving of numbers on the dial?

• A manual scribe

• A 3D printer

• A pantograph engraver

• A laser cutter

How is the friction on the resettable dial achieved?

• Using rubber bands

• With ball bearings and springs

• By tightening screws

• With adhesive tape

What is crucial to avoid wobbling of the dial during operation?

• Using a thicker dial

• Applying more lubricant

• Ensuring the hand wheel is mounted accurately

• Using a larger hand wheel

What is the purpose of making the numbers on the longest graduations larger?

• To increase the durability of the dial

• To reduce the weight of the dial

• To ensure the dial is easier to read

• To make the dial more aesthetically pleasing