Plate / Tape

Check that plate caliper plus mounting tape matches the cylinder undercut, so the image prints on the gear pitch line.

Plate / Tape

What are you doing?
Plate caliper

Pull this from the rack

Cylinder to pullStamped .164 U/C.082" per side (radial)
Recommended tape0.015" (0.38 mm) Cushion Stickyback
Total print package0.082"Runs true to gear pitch

Using 0.020" tape? Pull a .174 U/C cylinder (.087" per side).

Quick reference matrixStandard plate and tape packages and the cylinder each one matches.
  • 0.030" Plate0.76 mm

    .090 U/C
    Tape
    0.015" (0.38 mm)
    Total package
    0.045" rad
  • 0.045" Plate1.14 mm

    .120 U/C
    Tape
    0.015" (0.38 mm)
    Total package
    0.060" rad
  • 0.045" Plate1.14 mm

    .130 U/C
    Tape
    0.020" (0.51 mm)
    Total package
    0.065" rad
  • 0.067" Plate1.70 mm

    .164 U/C
    Tape
    0.015" (0.38 mm)
    Total package
    0.082" rad
  • 0.067" Plate1.70 mm

    .174 U/C
    Tape
    0.020" (0.51 mm)
    Total package
    0.087" rad

Tooling suppliers (RotoMetrics, Wilson, etc.) engrave the diametral undercut on cylinder bearers (e.g., ".164 U/C").

Gear pitch & repeat

Calculator mode
Gear pitch
Gap type

Print repeat

12.0000"

Labels around
3
Actual even gap
1.0000"
Unused repeat
2.6250"
Repeat left after labels at target gap

96T × 0.125" = 12.0000"

Plate distortion

View
Plate thickness

Scale image around cylinder to

96.10%

Distortion
3.90%
K factor
0.3896"
Assumes .005" backing

K = 2π × (0.067 − 0.005) = 0.3896" · ((10 − K) ÷ 10) × 100