Alvin Parallel Straightedge 1101 User's Manual
Contents
1. 2 Remove all old wires 3 Fold new replacement wire in half and thread folded end through center of blade Pull through until wire is equal length on each side of the blade Cut wire at fold There are now two independent wires running through blade 4 Grasp either wire on left side pass around blade pulley and brake screw as shown in wiring Diagram 2 and pass it around pulley in upper left corner of board Connect to spring at top 5 Grasp the wire on right side not connected to spring from left side Trial and error method will be required here Pass this wire around blade pulley and brake screw then pass it around pulley in upper right corner of board Connect to spring at top Diagram 2 6 Pass lower left and lower right wires around blade pulleys and brake screws as shown in wiring Diagram 2 O 7 To confirm wires have been strung correctly hold straightedge in place with one hand and pull gently on lower left wire with other hand The spring at top should move to the right Repeat by pulling the lower right wire and the spring should move to the left 8 Replace end caps and secure with screws from below Be sure that wires remain properly threaded around pulleys and brake screws and pass properly through exit slots in end caps Do not over tighten or strip screws 9 Follow steps 8 through 13 on previous page to finish installation ALVIN Replacement Parts HD4 Straightedge Hardware Kit for Models 12. _ Parallel Straightedge Assembly Instructions For Models 1101 and 2201 Parts List wee Straightedge with Wire and Spring 1 Front Wire Connectors 2 S Ou CS E Gou gow x Z NR Left Rear Right Rear Rear Pulleys Rear Brake 1 2 Brake 3 4 5 8 3 8 Wire Connector Wire Connector 2 Knob Stud Screw Screws Screws Washers 1 1 1 1 6 2 2 NOTE Only six screws total are required for installation We have included 1 Tl Tools Required Phillips screwdriver and 6 drill or awl two extra screws to accomodate various board thicknesses To assemble follow step by step instructions below 1 Verify that all parts shown in parts list are included 2 Check that drawing board has a solid outer frame to hold screws and that it is not warped Alvin straightedges will not work properly on warped boards 3 Position front and rear wire connectors on top of drawing board as shown in Figure 1 Use chart below to determine proper spacing Center the straightedge on the board For Straightedge Length Dimension A Dimension B Dimension C 30 2734 2834 34 36 3334 3434 34 42 3934 4034 34 48 4534 4634 34 60 57 5834 34 Proceed to step 4 on next page Figure 1 Rear Wire Connectors Front Wire Connectors 10 11 12 13 Mark screw positions for front and rear connectors and pre drill pilot holes about 44 deep using a 16 drill bit TIP Wrap masking tape 14 f
3. 101 1102 and 2201 Contains Cy 2 Front wire connectors 2 Rear pulley assemblies 8 Screws 6x 3 4 and 2x P Wire not included and must be nn ordered separately Straightedge Rewiring Kit for Replacement Brake Knobs for Models 1101 1102 and 2201 Models 1101 1102 and 2201 Contains 1 Spring 2 Eyelets 2 Front wire connectors Contains 30 Feet of wire to string straightedges from 3 Thumbscrew brake knobs 30 to 72 in length 2 T shaped brake screws 1 Brake screw stud ALVIN amp COMPANY INC e P O Box 188 Windsor CT 06095 0722 Visit us at www alvinco com Phone 860 243 8991 e Toll Free 800 444 2584 e Fax 860 242 8037 e Toll Free Fax 800 777 2896 A6333 10 06
4. ng tension as directed for best performance Excess wire can be trimmed off leaving several inches for future adjustment Figure 2 Front connector Figure 3 34 Screw Knob 3 Rear Brake I I Pulley Post Figure 4 Sq 34 Screws Right Rear Connector IN 34 Screws Use the screws in place of the 34 screws for boards thick or less Stud Screw Left Rear Connector Figure 5 Rear Brake Knob Center spring on board Stretch spring to 2 in length for proper tension Brake Knob Straightedge Figure 6 Washer ADJUSTMENTS To Adjust Parallel Position 1 Be sure all three brake knobs are free and loose See Figure 5 on previous page for brake locations 2 Grasp one end of straightedge and hold firmly against drawing board 3 Gently pivot other end of straightedge up or down until desired parallel position is reached 4 Secure wire under thumbscrew brake in upper right corner to maintain parallel To Lock Straightedge In Place 1 With straightedge in desired position gently tighten both left and right thumbscrew brakes Caution Do not overtighten Overtightening brake screws will damage wires REWIRING INSTRUCTIONS If your wire ever breaks or needs to be replaced follow these steps Diagram 1 1 Release left and right end caps by removing screws from below Be sure not to remove screws that keep top and bottom layers of blade together
5. rom drill tip to set drilling depth Use care not to drill through tabletop Fasten front connectors to front edge of board as shown in Figure 2 using 34 screws Fasten screws half way Do not fully tighten Assemble right rear connector as shown in Figure 3 and fasten to board Select screw length based upon board thickness Fasten screws securely For board thicknesses of 5 8 or less If your board is thick or less please use the screws in place of the 34 screws as shown in Figures 3 and 4 Do not use 34 screws included with hardware kit since they might break through bottom of board Assemble left rear connector as shown in Figure 4 and fasten to board Fasten screws securely Pulleys are designed to be tight fitting and do not spin freely Place straightedge in center of drawing board parallel to front edge as shown in Figure 5 Loop upper wires around pulleys in rear wire connectors making sure that spring is centered Thread lower left and lower right wires through front wire connectors Wire should pass between connector and board as shown in Figure 6 With spring still centered at top pull slack out of wire passing through lower left connector and wrap wire around mounting screw Fasten screw securely Pull slack out of wire passing through lower right connector until spring at top is stretched to about 212 in length Wrap wire around mounting screw and fasten screw securely Use care to set spri
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