Leigh FMT PRO - Page 60

Appendix I Frame Mortise & Tenon Jig User Guide
JOINT SPECIFICATIONS, GUIDE & BIT SELECTION
56
A1-10 Thickest Mortise Board and Mortise Centers – Four
table positions
Thickness 3"[75mm]
➀
.
4 Mortises
1
⁄2" x 2"[12 x 50mm]
➁
.
2 Mortises
1
⁄2" x 4
1
⁄2"[12 x 115mm]
➂
.
Spacing
9
⁄16" to 1"[13 x 26mm]
➃
.
Board Width Clamping Capacity: 5"[128mm].
2
3
1
2
4
A1-5 Largest Single Rail and Tenon - Two Table Positions.
Workpiece 1
5
⁄16" x 5
1
⁄2"[34 x 140mm]
➀
.
Tenon
1
⁄2" x 4
1
⁄2"*[12 x 115mm]
➁
.
Guide
1
⁄2" x 2
1
⁄2"[12 x 65mm].
*Note: Using three table positions, tenon width
➂
may be up to 5"[125mm]
1
3
1
2
A1-6 Largest Tandem Double Tenon - Two Table Positions.
Workpiece 1
5
⁄16" x 5
1
⁄2"[34 x 140mm]
➀
.
Tenons
1
⁄2" x 2"[12 x 50mm]
➁
.
Guide
1
⁄2" x 2"[12 x 50mm].
1
2
1
2
A1-7 Largest Side-by-Side Twin Tenon - Two* Table Positions.
Workpiece 3" x 5
1
⁄2"[76 x 140mm]
➀
.
Tenons
1
⁄2" x 2
1
⁄2
+
"[12 x 65
+
mm]
➁
.
Guide
1
⁄2" x 2
1
⁄2"[12 x 65mm].
*Note: Add left-right table positions to the two front-back settings,
for maximum workpiece and tenons extension. See A1-5
1
2
1
2
A1-8 Largest Quadruple Tenon - Four table positions.
Workpiece 3" x 5
1
⁄2"[76 x 140mm]
➀
.
Tenons
1
⁄2" x 2"[12 x 50mm]
➁
.
Guide
1
⁄2" x 2"[12 x 50mm].
1
2
1
2
A1-9 Largest Triple Tenon - Five* Table Positions.
Workpiece 1
3
⁄4 x 5
1
⁄2"[44 x 140mm]
➀
.
Tenons
3
⁄8" x 2"[10 x 50mm]
➁
.
Guide
3
⁄8" x 2"[10 x 50mm].
*Note: To avoid “trapping” the bit on larger workpieces it is necessary
to rout the third tenon in three different
FB
table positions. See
Chapter 5, Triple Joints.
1
22
1
2
2