Keith Rucker machines a new main roller casting for a John Deere Amazon cane mill on the lathe. He removes sand from the casting's core, faces both ends, turns the outside diameter, and cuts grooves, sharing challenges and solutions.
A short editorial from the VEONIB team on why this content matters.
Keith Rucker's meticulous lathe work on a one-off cane mill casting showcases the realities of vintage machinery restoration, from sand core removal to tooling challenges.
Unlike typical machining videos, this content dives deep into the foundry-to-finish process, highlighting problem-solving and the importance of proper tooling for cast iron.
Ideal for machinists and vintage equipment enthusiasts; watch to learn practical techniques for machining large castings and overcoming common pitfalls.
A machine used to crush sugar cane to extract juice for sugar production.
A metal casting process where sand is used to create molds.
A sand shape placed in a mold to create hollow cavities in castings.
A machine tool that rotates a workpiece to perform various machining operations.
A machining operation that produces a flat surface on the end of a workpiece.
A machining process where a cutting tool removes material from a rotating workpiece.
Cutting narrow channels or grooves into a workpiece.
A group of iron-carbon alloys with a carbon content greater than 2%.
What is a cane mill?
A cane mill is a machine used to crush sugar cane to extract the juice, which is then processed into sugar or syrup.
Why was a new main roller needed for the John Deere Amazon cane mill?
The original main drum had been heavily modified in the past and needed to be replaced to restore the mill to proper working condition.
How was the new roller casting made?
A pattern was created and the casting was poured at Windy Hill Foundry. It required multiple attempts to get a successful pour.
Why was there sand inside the casting?
During sand casting, sand is used to form the mold and core. The core creates the hollow center, and the sand must be removed after casting.
How did Keith remove the sand from the casting?
He initially used a stick, then created a tool with a chain attached to a metal rod. Spinning the tool inside the casting helped break up and extract the compacted sand.
What were the final dimensions of the roller?
The roller was faced to a length of 13.5 inches, and the outside diameter was turned to approximately 10 inches, with the flange diameter around 11-11.375 inches.
Why are grooves cut into the roller?
The grooves provide a path for the juice to flow as the cane is crushed, improving extraction efficiency.
What challenges were faced during machining?
The main challenges were removing the abrasive sand from the casting and dealing with tool wear. Switching to cast iron-specific inserts improved performance.
What is the purpose of the steel shaft cast into the roller?
The steel shaft provides a durable mounting point for gears and bearings, and was machined before casting to simplify final machining.
How did the lathe perform during this project?
The lathe, recently modified with a new compound rest, performed flawlessly, handling the large casting with ease.