-12-
Model T27577 (Mfd. Since 3/16)
V-Nail Size &
Placement
The Model T27577 accepts 5, 7, 10, 12, and
15mm long
Universal Type V-nails. Prior to V-nail
insertion, apply adhesive to the mitered edge
and clamp frame into underpinner (see
Clamp
Settings on Page 13).
Stacking Multiple V-Nails
Figure 12. Placing multiple v-nails.
Single
V-Nail
Stacked
V-Nails
Inside Edge
Stacked V-nails may be used to reinforce irregu-
lar frame thicknesses. Inserting one V-nail after
another into the same position will drive the first
V-nail deeper (see
Figure 12). Single V-nails can
then be placed nearby for added support (see
Figure 12).
Determining V-Nail Size
The correct V-nail size (length) is determined by
the thickness of the workpiece. To ensure a strong
frame assembly, V-nail length must
at least half
the thickness of the frame. An easy rule of thumb
is to take your workpiece thickness, subtract 2mm
and then round down to the next available size of
V-nail (see
Figure 9).
Use a test piece to gauge V-nail depth, or hold a
V-nail beside the workpiece to check depth.
2mm
Minimum
Figure 9. Determining V-nail depth.
Frame Face
(side view)
Inserting Single V-Nail
Figure 10. Single V-nail in workpiece.
For simple mitered corners on frames 2
1
⁄
2
" Wide
or smaller, a single centered V-nail is typically
used (see
Figure 10).
Centered
Frame Face
(side view)
Outside Edge
Top View
Inserting Multiple V-Nails
Multiple V-nails are typically used on frames
larger than 2
1
⁄
2
" wide. When inserting two or
more V-nails per corner, the first V-nail should be
roughly
1
⁄
4
the stock width from the inside edge of
miter (see
Figure 11). The second V-nail should
be roughly
1
⁄
3
the stock width from the outside
edge of the miter (see
Figure 11).
Figure 11. Two V-nails in workpiece.
Frame Face
(side view)
1
⁄
3
Stock Width
1
⁄
4
Stock Width
Outside Edge
Top View
Summary of Contents for T27577
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