Parallel Straightedge Assembly Instructions
For Models 1101 and 2201
Parts List
wire 
Straightedge with Wire and Spring (1)
Front Wire Connectors (2)
Left Rear | Right Rear | Rear Pulleys |
Wire Connector | Wire Connector | (2) |
(1) | (1) |
|
Tools Required: Phillips screwdriver and 1⁄16" drill or awl
Rear Brake | 1/2" Brake | 3/4" | 5/8" | 3/8" |
Knob | Stud Screw | Screws* | Screws* | Washers |
(1) | (1) | (6) | (2) | (2) |
*NOTE: Only six screws total are required for installation. We have included 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" | 27¾" | 28¾" | ¾" |
36" | 33¾" | 34¾" | ¾" |
42" | 39¾" | 40¾" | ¾" |
48" | 45¾" | 46¾" | ¾" |
60" | 57¾" | 58¾" | ¾" |
Proceed to step 4 on next page.
Figure 1 |
|
| A |
C | C |
| Rear Wire Connectors |
| Front Wire Connectors |
| B |
