Sand The Proper Back Arch On The Bottom Of All The Back Braces. The Radius Should Be Exactly The Same For All Back Bracing. This Is Best Marked With The Arch Template
Waist Back Brace
8 25/32"
223.0
Back Material: Many Different Woods Can Be Used. For Bright Tones Try Hawaiian Koa. For Warmer Tones Honduras Mahogany Is A Good Choice
8 21/32"
35.8
147.1
35.8
5
1/32"
1 13/32"
5 25/32"
1 13/32"
1/32"
1/4"
5
C
Light Lines Indicate Kerfed Lining Made From Either Basswood Or Mahogany. Make This Lines On The Bandsaw With A Stop Jig Set Up So Your Kerfing Looks Perfectly Spaced. Attention To Detail - Always Important.
Back Braces - Vertical Grain Minimum 20 Grain/In. Cedar Or Spruce #1 Quality. Cope Out Ends Of Bracing.
219.7
219.7 8 21/32"
36.3
73.6
73.6
36.3
1 7/16"
2 29/32"
2 29/32"
1 7/16"
Back Plate Layout & Brace Layout
3/16"
4.9
0"
3/16"
2"
51.0
5 5/8"
142.8
6 31/32"
2"
Dashed Lines Indicate Rough-Out Line Of Brace Prior To Gluing To Top Once Braces Have Been Glued, Scallop According To The Curvature. Typical For All Braces
5 11/16"
10.0
51.0 15.0
R 50.0
Back Block or Butt Block. Vertical Grain Honduras Mahogany, Maple or Other Hardwood.
B
6.4
Cut Mortise In Head Block Prior To Gluing To Sides. Cut Sides To Length And Match Mortise After They Are Glued To Block
1/4"
6.4
1.7
13/32"
10.0
16.0
R 50.0
144.4
4.8
Neck Block. This Is A Very Important Structural Element. Construct From Vertical Grain Honduras Mahogany, Maple, Or Same Species As Neck
177.1
Dashed Lines Indicate Rough-Out Line Of Brace Prior To Gluing To Top Once Braces Have Been Glued, Scallop According To The Curvature. Typical For All Braces
5 11/16"
3
23/32"
25.4
144.4
13/32"
Arch The Back Of The Ukulele For Sound Reflectance Quality And To Allow Some Tolerance For Humidity Changes. This Arch Should Be Approximately 5mm Across The Wide Part Of The Back Plate
19.0
5/8"
5 3.0 1/32" 6.5
35.8
Upper Bout Back Brace
10.0
To Cover Up The Center Seam Inside The Ukulele Body And Give The Joint Additional Strength Use A Strip Of Maple 1mm Thick. Run Between The Braces And Round-Off As Shown. The Best Way To Install This Is As One Long Piece And Carefully Cut And Chisel Out The Channels For The Back Braces.
6 3/4"
13/32"
10.0
171.8
1/4"
6.4
12 7/32"
Lower Bout Back Brace
Note: Make All The Back Bracing Longer Than It Needs To Be, Leave Each Brace At Least 3/8" Long And Trim Back During Fitting Of The Back And Top Plates To The Guitar Sites.
These Dashed Lines Indicate Shape Of Brace Prior To Shaping The Arch On The Bottom Of The Brace.
Dashed Lines Indicate Top Plate Location Kerfed Lining. Extend Above Wood Sides About 1/32" (.8mm). After Glue Is Dry, Sand With A Flat Sanding Surface.
Side Wood
This Gap Can Remain As It Will Be Routed Out For the Purfling and Binding Channel
Notch Kerfed Lining To Receive Brace End. The Brace Should Be Glued To Both The Side Wood and The Channel In The Lining.
Wood Sides
Gap Can Remain As It Will Be Routed Out For Purfling and Binding Channel
Top Plate Glued In Place.
Carefully Mark Braces On The Top Of The Lining And Cut The Brace Channels Into The Lining As Required. These Channel Are Best Cut With a Mini Router Such As A Dremel Roto-Tool
Notch Kerfed Lining To Receive Brace End. The Brace Should Be Glued To Both The Side Wood and The Channel In The Lining.
Back Plate Glued In Place
Back Brace Detail This Is How The Instrument Should Appear After The Back Plate Is Glued In Place. Detail Is 2x Actual Side
Top Plate Detail
Top Brace Detail This Is How The Instrument Should Appear After The Top Plate Is Glued In Place. Detail Is 2x Actual Side
This Drawing or Drawings Are To Used For One Use Only And Not Reproduced For Any Other Purpose Than Construction Of This Particular Instrument, and a One Time Reproduction Only is Allowed Reproduction, Distribution or Sales For Any Other Use Is Strictly Prohibited And Falls Under U.S Copyright Laws For David VerBurg AIA c 2013 This Sheet Size Is Metric A1 Size Overall Size is 841mm x 594mm With 15mm Borders On All Sides. For USA Customers Print On Architectural "D" (24" x 36") Without Resizing For 1:1 Printout.
Georgia Luthier Supply
14-Fret Tenor Ukulele Plan
Note For Detailed Construction Instructions Refer To Our Book "Guitar & Ukulele Construction Handbook @ http://shopglss.com Date: March 27, 2013 Revisions:
May 24, 2014
Unless Noted Otherwise, These Plans Are Drawing Full Scale. They Are Labeled in mm and Fractional Inches