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Little Machine Shop Mini Lathe User Manual

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The premier source of parts and accessories for mini lathes and mini mills.
Mini Lathe User’s Guide
from LittleMachineShop.com
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Little Machine Shop Mini Lathe Specifications

General IconGeneral
Distance Between Centers12 in
Motor Power150 W
Weight84 lbs
Spindle Bore0.787 in
Spindle TaperMT3
Tailstock TaperMT2
Swing Over Bed7 in
MotorDC motor

Summary

Introduction

Specifications

Safety Considerations

Features

Lathe Front View Components

Identifies numbered components of the lathe's front view.

Basic Accessories

Cleaning

Shipping Grease Removal

Procedure to remove shipping grease from the lathe and prepare it for use.

Mounting Your Lathe

Lathe Mounting Options

Instructions for attaching rubber feet for portability or securing the lathe.

Operating Controls

Lathe Motor Control Operation

Identifies speed control, forward/off/reverse switch, and power switch.

Spindle Speed Shifter Adjustment

Explains the high/low speed shifter on the headstock.

Carriage Power Feed Direction Control

Controls carriage direction using the lead screw.

Engaging the Power Feed Lever

Engages/disengages power feed by locking half nuts.

Carriage Manual Movement

Moves carriage manually, not for use during turning.

Cross Slide Feed Handle Operation

Moves cross slide for tool advancement and facing cuts.

Compound Rest Feed Handle Operation

Advances compound rest for tool into work.

Compound Rest Angle Adjustment

Allows positioning compound rest at various angles.

Tailstock Locking Mechanism

Locks tailstock position on the ways.

Tailstock Quill Extension Control

Moves tailstock quill in and out.

Tailstock Quill Locking

Locks tailstock quill movement.

Adjustments

Carriage Adjustment and Retainers

Adjusting carriage retainers for proper fit on ways.

Cross Slide Gib Adjustment

Adjusting gibs for a precision fit in the cross slide.

Cross Slide Nut Play Adjustment

Adjusting the cross slide nut to remove free play.

Compound Rest Gib Adjustment

Adjusting the compound rest gib for precision fit.

Apron Alignment for Half Nuts

Adjusting apron to center half nuts on lead screw.

Half Nut Adjustment Procedure

Adjusting half nuts for play and closing limit.

Lead Screw Mounting Bracket Adjustment

Adjusting lead screw mounting brackets to prevent binding.

Drive Belt

Drive Belt Alignment and Tension

Explains the importance of proper drive belt alignment and tension.

Lathe Lubrication Guide

Transmission Gear Lubrication

Procedure for lubricating transmission gears with spray grease.

3-Jaw Chuck Jaw Installation

Sharpening Lathe Tool Bits

Grinding Front Relief on Tool Bits

Steps for grinding front relief and angle on a tool bit.

Grinding Left Side Relief on Tool Bits

Steps for grinding left side relief on a tool bit.

Grinding Top Rake for Tool Bits

How to grind top rake for side and back rake angles.

Creating Tool Bit Nose Radius

How to create a nose radius for corners and finishes.

Setting Tool Bit Height

Setting tool bit height to the lathe spindle center height.

Lathe Turning Operations

Manual Turning Procedure

Steps for turning the outside diameter of a workpiece manually.

Turning with Power Feed

Procedure for using power feed for turning operations.

Workpiece Facing Technique

Description of facing operation on the end of a workpiece.

Achieving Turning Angles and Tapers

Methods for turning angles or tapers on a workpiece.

Lathe Thread Cutting Guide

Change Gear Setup for Threading

Explains the purpose and positions of change gears for threading.

Using the Threading Dial

How the threading dial aligns the tool with emerging threads.

Tool Bit Grinding for Threading

Grinding the tool bit profile for threading.

Setting Compound Rest for Threading

Setting compound rest angle for thread cutting.

Aligning Cutting Tool with Center Gage

Aligning the cutting tool to the workpiece using a center gage.

Step-by-Step Thread Cutting

Step-by-step procedure for cutting threads in multiple passes.

Essential Lathe Accessories

Cut-Off Tool Holder Use

Tool holder for cut-off blades in the standard tool post.

Quick Change Tool Post System

Advantages and components of a quick-change tool post system.

Indexable Turning Tool Sets

Description of indexable turning tools and their inserts.

4-Jaw Chuck Advantages

Advantages of a 4-jaw chuck for holding various workpiece shapes.

Faceplate for Workpiece Mounting

Mounting odd-shaped workpieces using a faceplate.

Lathe Centers and Dogs

Using live centers, dead centers, and lathe dogs.

Steady and Follower Rest Support

Supporting long or flexible workpieces with rests.

Lathe Maintenance and Care

Lathe General Cleaning

Procedures for cleaning swarf and lead screw.

Motor Brush Replacement

Steps for replacing motor brushes without removing the motor.

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