WOOD LATHE COPY ATTACHMENT MODEL G2891 INSTRUCTION MANUAL COPYRIGHT © 1993 BY GRIZZLY INDUSTRIAL, INC. WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC. REVISED APRIL, 1999. PRINTED IN U.S.A.
Table Of Contents PAGE 1. SAFETY SAFETY RULES FOR POWER TOOLS ................................................................2-3 ADDITIONAL SAFETY INSTRUCTIONS FOR LATHES ..........................................4 2. INTRODUCTION COMMENTARY ........................................................................................................5 UNPACKING..............................................................................................................6 PARTS INVENTORY .....................
SECTION 1: SAFETY For Your Own Safety Read Instruction Manual Before Operating This Equipment The purpose of safety symbols is to attract your attention to possible hazardous conditions. This manual uses a series of symbols and signal words which are intended to convey the level of importance of the safety messages. The progression of symbols is described below. Remember that safety messages by themselves do not eliminate danger and are not a substitute for proper accident prevention measures.
Safety Instructions For Power Tools 9. USE PROPER EXTENSION CORD. Make sure your extension cord is in good condition. Conductor size should be in accordance with the chart below. The amperage rating should be listed on the motor or tool nameplate. An undersized cord will cause a drop in line voltage resulting in loss of power and overheating. Your extension cord must also contain a ground wire and plug pin. Always repair or replace extension cords if they become damaged.
Additional Safety Instructions For The G2891 1. 2. Before turning your lathe on, ensure that the cutting tool is well away from the turning square. Ensure that the turning square will rotate freely. 7. Before any copying operation, ensure that the headstock and tailstock of your lathe are centered on the same axis. 8. While working, position yourself so you are within easy reach of all lathe and Copy Attachment controls. 9. Keep base lubricated to ensure smooth carriage movement during copying.
SECTION 2: INTRODUCTION Commentary Grizzly Industrial, Inc. is proud to offer the Model G2891 Wood Lathe Copy Attachment. The G2891 is part of Grizzly’s growing family of fine woodworking and metalworking machinery. When used according to the guidelines stated in this manual, you can expect years of trouble-free, enjoyable operation. The Model G2891 is a wood lathe duplicator capable of mass-producing many shapes of the same design. The G2891 comes complete with mounting hardware and cutting tool.
Unpacking Parts Inventory This Wood Lathe Copy Attachment is shipped from the manufacturer in a carefully packed carton. If you discover the machine is damaged after you’ve signed for delivery, and the truck and driver are gone, you will need to file a freight claim with the carrier. Save the containers and all packing materials for possible inspection by the carrier or its agent. Without the packing materials, filing a freight claim can be difficult.
Site Considerations Notes FLOOR LOAD Your G2891, when mounted to your wood lathe, represents a large weight load in a small footprint. Be sure that the floor in your work area is adequately reinforced to support the weight of the lathe and copy attachment. WORKING CLEARANCES Working clearances can be thought of as the distances between machines and obstacles that allow safe operation of every machine without limitation.
SECTION 3: ASSEMBLY The illustration below indicates the features and controls included with the Model G2891. Assembly, adjustments, operation and maintenance procedures will all be more successful after you develop an understanding of the copy attachment’s construction and functions. Overview NOTICE All assembly and adjustment instructions assume that your lathe is axially aligned, i.e., the headstock and tailstock are centered on the same axis. Consult your lathe owner’s manual for proper procedure.
Mounting The Model G2891 mounts easily on Grizzly Lathe Models G1067Z and G1495. It will also mount on most other lathes having a bed size of at least 40''. Two mounting brackets attach the bed of the Model G2891 securely to the bed of the lathe. The mounting process is as follows: 1. Mount the two bed brackets perpendicular to the lathe bed with the large cap screws and the square threaded mounting plates provided.
Rough Alignment Once the Copy Attachment Bed is attached to the mounting brackets, the following procedures will allow you to begin the very important process of aligning the parallelism between the centers of the lathe and those of the centers which will hold your template or original profile. 1. To roughly align the Copy Attachment with the lathe headstock/tailstock axis two gauge boards will be needed. The gauge board should be approximately 1- 11⁄8'' thick, 6 - 8'' wide and 2 - 3'' long.
Final Alignment Final alignment of the lathe axis and the copier axis must be precise to ensure that they are both parallel. Before executing the following steps, mount a turning square between the centers of your lathe. The turning square should be as long as the maximum center-to-center distance of your lathe to ensure the greatest degree of accuracy. It is critical that the turning blank is perfectly centered and as near-perfectly straight as possible. Figure 7. Using precision spacer. 1.
SECTION 4: ADJUSTMENTS Cable Tension The movement of the carriage assembly along the body of the Copy Attachment is controlled by the movement of the Longitudinal-Feed Handwheel. This Handwheel is connected to the carriage via a cable. This cable should be taut to ensure responsive movement of the carriage. The cable can be tightened by loosening the bolt at the control rod. See Figure 8. The cable should then be pulled snugly, but not so tight that stress is placed on the cable.
Cutting Tool Copy Stylus The cutting tool can be positioned closer or farther away from the workpiece by loosening the setscrew at the top of the cutting tool collar. Use an 8mm Allen® wrench to make collar adjustments. To install or replace the cutting tool: To ensure the greatest level of precision while copying from a template or a master profile, it is essential that the Copy Stylus is properly positioned at the underside of the travelling carriage.
SECTION 5: Operations • This Copy Attachment will produce any number of duplicate spindles from one master profile or template. The advantages provided by this accessory for your wood lathe are readily apparent, in terms of consistency and labor savings. To reduce whip and vibration of relatively narrow copy spindles, we recommend operating the longitudinal handwheel with your left hand and backing up the spinning workpiece with your right.
Master Spindle or Template Move from high points towards areas with greater depth of cut Stylus Figure 12. Recommended direction of stylus travel. Basic Operation To make a copy of an existing spindle or template: 1. To make identical copies from a master spindle it is necessary to first make certain the cutting tool and the follower stylus are aligned with their respective centerlines. See Figure 13.
7. Move the carriage stylus to the left hand limit of the profiled area and adjust the left hand stop until it is in contact with the carriage. See Figure 14. Tighten the stop with a Phillips® head screwdriver. 8. Repeat the procedure for the right hand stop. pass. If it tends to bite or gouge the workpiece, back the cutter slightly and try again. Be conservative when removing stock. 13. After you’ve made several passes with the cutting tool, turn the lathe off and inspect the results.
SECTION 6: MAINTENANCE Lubrication Cutting Tool After each copying session, wipe the lathe and Copy Attachment with a clean cloth to remove accumulated chips and sawdust. After extended use, particularly with hardwoods or woods with large amounts of oil or resins, the cutter may become dull. 1. Apply a light spray lubricant to the longitudinal and crossfeed gears.
SECTION 7: CLOSURE The following pages contain general machine data, parts diagrams/lists, troubleshooting guide and Warranty/Return information for your Model G2891 Lathe Copy Attachment. If you need parts or help in assembling your machine, or if you need operational information, we encourage you to call our Service Department. Our trained service technicians will be glad to help you.
MACHINE DATA SHEET Customer Service #: (570) 326-3806 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901 GRIZZLY MODEL G2891 WOOD LATHE COPY ATTACHMENT Design Type: Drive ......................................................................................Manual, Cable-Operated Wood Lathe Compatibility..........14" Swing Over Bed with Cast or Channel Bedways Copy Pattern ........................................................Existing Spindle or Plywood Pattern Overall Dimensions: Length.............
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G2891 PARTS LIST Ref.
WARRANTY AND RETURNS Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse, negligence, accidents, repairs or alterations or lack of maintenance.
WARRANTY CARD Name ____________________________________________________________________________________ Street ____________________________________________________________________________________ City ______________________________________________________________State________Zip_________ Phone Number_______________________E-Mail_______________________FAX________________________ MODEL # ______________________________Order #______________________________________________ The following information is given on a
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