NJRJ Instructions [PDF]

Zitiervorschau

O’Brien Neck Joint Routing Jig Assembly Instructions

It is important that these instructions be followed carefully as assembling this jig out of sequence could prevent it from coming together correctly. These instructions rely mainly on drawings to illustrate the assembly, but in a few instances text containing helpful hints has been added. In addition to these written instructions, there is a video on our website demonstrating assembly and use of the jig. We hope your enjoy using your Neck Joint Routing Jig. We recommend that brads and glue be used for assembly of this jig, but at a bare minimum glue if you don’t have access to a brad gun.

Hardware included:

Recommended Tools:

2 - 5/16”-18 all thread 7” long Hammer 2 - 5/16”-18 threaded knobs 1/2” combination wrench 7 - 5/16” flat washers (used in two locations) 7/16” combination wrench 2 - 5/16”-18 hex locknuts Electric drill 2 - 5/16”-18 tee nuts 4 - 1/4”-20 x 3” carriage bolts 4 - 1/4” flat washers 4 - 1/4”-20 hex nuts 4 - 1/4”-20 knobs (vibration absorbing) 6 - #6 wood screws (6 already installed) 1 - 5/16”-18 x 4-1/2” carriage bolt 3 - 5/16”-18 hex nuts 2 - 1/4”-20 x 1” knob w/stud 2 - 1/4”-20 tee nuts 1 - 21 1/2” aluminum angle extrusion 2 - 10-32 x 3/8” threaded inserts 2 - 10-32 x 5/8” machine screws 4 - 1/4”-20 x 3/4” socket head screws (packaged with template) 4 - 1/4”-20 tee nuts (packaged with template) 1 - 1/8” Allen wrench (packaged with template) 1 - 9” x 12” x 1/16” cork (cut up for padding, see instructions) 2 - 1/4” plastic dowel pins (for neck alignment w/truss rod slot) Page 1

I. Base Assembly 1. Base Plate

3. Base Center

Page 2

2. Base Right Side

4. Base Left Side

I. Base Assembly - cont. 5. Insert Carriage Bolt 1 - 5/16”-18 x 4-1/2” carriage bolt

6. Add Washer 1 - 5/16” flat washer

7. Add Nut 1 - 5/16”-18 hex nut

Page 3

Router bits for routing both straight or dovetail mortise and tenon components are available at http://www.lmii. com/products/tools-services/ rout/shape/drill/neck-joint-jigand-templates

II. Body Clamp Plate Assembly 1. Install Tee nuts

2. Attach Brace

2 - 5/16”-18 tee nuts

3. Brace Assembled

Page 4

4. Affix Cork

III. Body Clamp Assembly 1. Threaded Rod 2 - 5/16”-18 allthread 7” long

2. Locknuts 2 - 5/16”-18 hex locknuts The locknuts are very difficult to thread on if you attempt to do it by hand. We recommend chucking the all thread up in your drill and using a box wrench to thread them on to approximately two inches from the opposite end where you began the threading. See inset photo.

Thread nut to here.

3. Washers 2 - 5/16” flat washers

Page 5

4. Front Plate

III. Body Clamp Assembly - cont. 5. Cork 9” x 12” x 1/16” cork

The cork should terminate 1/8”+ from the notched edge of the Body Clamp Assembly so it fits into the Top dado later in the assembly.

7. Knobs 2 - 5/16”-18 threaded knobs Permanently attach the knobs with a

threadlock compound (Loctite, etc).

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6. Washers 2 - 5/16” flat washers

IV. Neck Pivot Plate Assembly 1. Tee Nuts/Carriage Bolts

2. Tee Nuts/Carriage Bolts Installed

2 - 1/4”-20 tee nuts 4 - 1/4”-20 x 3” carriage bolts

3. Washers 4 - 1/4” flat washers

Page 7

4. Nuts 4 - 1/4”-20 hex nuts

V. Neck Pivot Plate Mounting 1. Marked Hinge Location

2. Hinge Aligned and Attached 6 - #6 wood screws

We recommend you pre-drill the two outside holes with a 3/32” drill bit. Install the two outside screws snugly, but not fully tightened. There is enough play in the hinge holes to allow for small adjustments. Adjust the hinge to align with the pencil markings then install the remaining 4 screws and tighten all.

Page 8

VI. Top Assembly 1. Tee Nuts

2. Tee Nuts Installed

4 - 1/4”-20 tee nuts (packaged with template)

3. Body Clamp

Page 9

4. Body Clamp Plate

VI. Top Assembly - cont. 5. Right Side

7. Templates Attached (squared to edges)

Page 10

6. Left Side

8. Right Riser Attached See explanatory text next page.

VI. Top Assembly - cont. 9. Left Riser Attached

Check out LMI’s great selection of neck blanks at www.lmii.com/products/mostly-wood/ neck-woods/neckblanks

Page 11

Install the 1/4” -20 x 3/4” socket head screws through the template slots into the threaded tee nuts under the templates. Be sure you have the templates on the correct side of the jig as shown in the drawing. Square each template (mortise and tenon) to the front of the jig. When the templates are square, tighten the socket head screws. Now dry fit the left and right risers. There should be a very small gap between the risers and the templates. Too small a gap and the templates won’t slide properly, too wide and they’ll be sloppy. We recommend putting a small shim between the riser and the template such as a piece of paper or blue painters tape to act as a shim. Once you are comfortable with the dry fit, apply wood glue to the risers and place them back on the jig. The risers can be taped down as one would do with binding on a guitar and weighted in the center or clamped until dry.

VII. Final Assembly Decision Time

1. Overview Unassembled

At this point you need to decide whether you will make the final assembly permanent or if you would prefer to be able to disassemble these two sections when not in use. If permanent - glue and clamp, if temporary, you can hold the sections with through bolts and nuts, (not included).

2. Overview Assembled

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3. Close up of pocket

VII. Final Assembly - cont. 4. Base Left Side Installed Close up

5. Nuts and Washers

2 - 5/16”-18 hex nuts 2 - 5/16” flat washers

The 5/16” carriage bold shown needs hardware attached. Swing the neck clamp out so that the carriage bolt can be accessed. Install 1 5/16” nut, then 1 5/16” washer then replace the neck clamp and in front of it add another 5/16” washer and another 5/16” nut. This is the way you will lock your neck angle once you have determined it.

6. Neck Clamp View

7. Neck Clamp Plates Install cork on neck plates as shown in photo inset before using.

Page 13

VII. Final Assembly - cont. 8. Neck Clamp Knobs 4 - 1/4”-20 knobs (vibration absorbing)

10. Angle Extrusion Clamp Block

9. Angle Extrusion 1 - 21 1/2” aluminum angle extrusion

10. Angle Extrusion Knobs

2 - 1/4”-20 x 1” knob w/stud

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VIII. Centerline Installation 1. Centerline Overview

2. Centerline Closeup 2 - 10-32 x 3/8” threaded inserts

3. Centerline Inserts

Page 15

4. Centerline Inserts Installed

The center line acrylic extends beyond the bottom edge of the jig for a long sight line when centering the guitar. It is meant to be removed from the jig after the body alignment is complete, both to allow you to rotate the jig and for storage purposes.

VIII. Centerline Installation - cont. 5. Centerline Screws

6. Centerline Screws Installed

2 -10-32 x 5/8” machine screws

7. Body Side View

Page 16

8. Neck Side View